litellm/tests/unit/test_main.py

import asyncio
import base64
from datetime import datetime
import contextlib
import copy
import json
import logging
import os
from collections.abc import Mapping
from dataclasses import dataclass
from typing import Final

import httpx
import pytest
import respx


import urllib.parse
from importlib import import_module
from pathlib import Path
from unittest.mock import MagicMock, patch

import litellm
from litellm import main as litellm_main
from litellm.integrations.custom_logger import CustomLogger
from litellm.litellm_core_utils.core_helpers import get_litellm_metadata_from_kwargs
from litellm.litellm_core_utils.litellm_logging import Logging as LiteLLMLogging
from litellm.types.utils import Delta, ModelResponseStream, StreamingChoices, Usage


@pytest.fixture(autouse=True)
def clear_client_cache():
    """
    Clear the HTTP client cache before each test to ensure mocks are used.
    This prevents cached real clients from being reused across tests.
    """
    cache = getattr(litellm, "in_memory_llm_clients_cache", None)
    if cache is not None:
        cache.flush_cache()
    yield
    if cache is not None:
        cache.flush_cache()


@pytest.fixture(autouse=True)
def add_api_keys_to_env(monkeypatch):
    monkeypatch.setenv("ANTHROPIC_API_KEY", "sk-ant-api03-1234567890")
    monkeypatch.setenv("OPENAI_API_KEY", "sk-openai-api03-1234567890")
    monkeypatch.setenv("AWS_ACCESS_KEY_ID", "my-fake-aws-access-key-id")
    monkeypatch.setenv("AWS_SECRET_ACCESS_KEY", "my-fake-aws-secret-access-key")
    monkeypatch.setenv("AWS_REGION", "us-east-1")
    # Keep these transformation tests on the simple access-key path. A leaked
    # session token or role/web-identity env var pushes Bedrock auth down a
    # different branch and fails before the mocked HTTP client is exercised.
    monkeypatch.delenv("AWS_SESSION_TOKEN", raising=False)
    monkeypatch.delenv("AWS_ROLE_ARN", raising=False)
    monkeypatch.delenv("AWS_WEB_IDENTITY_TOKEN_FILE", raising=False)


WHITE_PNG: Final = (Path(__file__).parents[1] / "white_100x100.png").read_bytes()


@pytest.fixture
def openai_api_response():
    mock_response_data = {
        "id": "chatcmpl-B0W3vmiM78Xkgx7kI7dr7PC949DMS",
        "choices": [
            {
                "finish_reason": "stop",
                "index": 0,
                "logprobs": None,
                "message": {
                    "content": "",
                    "refusal": None,
                    "role": "assistant",
                    "audio": None,
                    "function_call": None,
                    "tool_calls": None,
                },
            }
        ],
        "created": 1739462947,
        "model": "gpt-4o-mini-2024-07-18",
        "object": "chat.completion",
        "service_tier": "default",
        "system_fingerprint": "fp_bd83329f63",
        "usage": {
            "completion_tokens": 1,
            "prompt_tokens": 121,
            "total_tokens": 122,
            "completion_tokens_details": {
                "accepted_prediction_tokens": 0,
                "audio_tokens": 0,
                "reasoning_tokens": 0,
                "rejected_prediction_tokens": 0,
            },
            "prompt_tokens_details": {"audio_tokens": 0, "cached_tokens": 0},
        },
    }

    return mock_response_data


def test_completion_missing_role(openai_api_response):
    from openai import OpenAI

    from litellm.types.utils import ModelResponse

    client = OpenAI(api_key="test_api_key")

    mock_raw_response = MagicMock()
    mock_raw_response.headers = {
        "x-request-id": "123",
        "openai-organization": "org-123",
        "x-ratelimit-limit-requests": "100",
        "x-ratelimit-remaining-requests": "99",
    }
    mock_raw_response.parse.return_value = ModelResponse(**openai_api_response)

    print(f"openai_api_response: {openai_api_response}")

    with patch.object(
        client.chat.completions.with_raw_response, "create", MagicMock(return_value=mock_raw_response)
    ) as mock_create:
        litellm.completion(
            model="gpt-4o-mini",
            messages=[
                {"role": "user", "content": "Hey"},
                {
                    "content": "",
                    "tool_calls": [
                        {
                            "id": "call_m0vFJjQmTH1McvaHBPR2YFwY",
                            "function": {
                                "arguments": '{"input": "dksjsdkjdhskdjshdskhjkhlk"}',
                                "name": "tool_name",
                            },
                            "type": "function",
                            "index": 0,
                        },
                        {
                            "id": "call_Vw6RaqV2n5aaANXEdp5pYxo2",
                            "function": {
                                "arguments": '{"input": "jkljlkjlkjlkjlk"}',
                                "name": "tool_name",
                            },
                            "type": "function",
                            "index": 1,
                        },
                        {
                            "id": "call_hBIKwldUEGlNh6NlSXil62K4",
                            "function": {
                                "arguments": '{"input": "jkjlkjlkjlkj;lj"}',
                                "name": "tool_name",
                            },
                            "type": "function",
                            "index": 2,
                        },
                    ],
                },
            ],
            client=client,
        )

        mock_create.assert_called_once()


@pytest.mark.parametrize("model", ["gpt-4o-mini"])
@pytest.mark.parametrize("sync_mode", [True, False])
@pytest.mark.asyncio
async def test_url_with_format_param_openai(model, sync_mode):
    from openai import AsyncOpenAI, OpenAI

    from litellm import acompletion, completion

    if sync_mode:
        client = OpenAI()
    else:
        client = AsyncOpenAI()

    args = {
        "model": model,
        "messages": [
            {
                "role": "user",
                "content": [
                    {
                        "type": "image_url",
                        "image_url": {
                            "url": "https://awsmp-logos.s3.amazonaws.com/seller-xw5kijmvmzasy/c233c9ade2ccb5491072ae232c814942.png",
                            "format": "image/png",
                        },
                    },
                    {"type": "text", "text": "Describe this image"},
                ],
            }
        ],
    }
    with patch.object(
        client.chat.completions.with_raw_response, "create"
    ) as mock_client:
        try:
            if sync_mode:
                response = completion(**args, client=client)
            else:
                response = await acompletion(**args, client=client)
            print(response)
        except Exception as e:
            print(e)

        mock_client.assert_called()

        print(mock_client.call_args.kwargs)

        json_str = json.dumps(mock_client.call_args.kwargs)

        assert "format" not in json_str


@pytest.mark.parametrize(
    "model",
    [
        "gemini/gemini-1.5-flash",
        "bedrock/us.anthropic.claude-haiku-4-5-20251001-v1:0",
        "bedrock/invoke/anthropic.claude-haiku-4-5-20251001-v1:0",
        "anthropic/claude-3-5-sonnet",
    ],
)
@pytest.mark.parametrize("sync_mode", [True, False])
@pytest.mark.asyncio
async def test_url_with_format_param(model, sync_mode, monkeypatch):
    from litellm import acompletion, completion
    from litellm.llms.custom_httpx.http_handler import AsyncHTTPHandler, HTTPHandler

    if sync_mode:
        client = HTTPHandler()
    else:
        client = AsyncHTTPHandler()

    image_url: Final = (
        "https://awsmp-logos.s3.amazonaws.com/seller-xw5kijmvmzasy/c233c9ade2ccb5491072ae232c814942.png"
        f"?case={sync_mode}-{model}"
    )
    args = {
        "model": model,
        "messages": [
            {
                "role": "user",
                "content": [
                    {
                        "type": "image_url",
                        "image_url": {
                            "url": image_url,
                            "format": "image/png",
                        },
                    },
                    {"type": "text", "text": "Describe this image"},
                ],
            }
        ],
    }
    if model.startswith("gemini/"):
        args["api_key"] = "test-api-key"
    monkeypatch.setattr(litellm, "user_url_validation", False)
    monkeypatch.setattr(litellm, "disable_aiohttp_transport", True)
    monkeypatch.setattr(litellm, "module_level_aclient", AsyncHTTPHandler(transport=httpx.AsyncHTTPTransport()))
    with (
        respx.mock(assert_all_called=False) as image_host,
        patch.object(client, "post", new=MagicMock()) as mock_client,
    ):
        image_route = image_host.get(image_url).mock(
            return_value=httpx.Response(200, content=WHITE_PNG, headers={"content-type": "image/png"})
        )
        try:
            if sync_mode:
                response = completion(**args, client=client)
            else:
                response = await acompletion(**args, client=client)
            print(response)
        except Exception as e:
            pass

        mock_client.assert_called()

        print(mock_client.call_args.kwargs)

        if "data" in mock_client.call_args.kwargs:
            json_str = mock_client.call_args.kwargs["data"]
        else:
            json_str = json.dumps(mock_client.call_args.kwargs["json"])

        if isinstance(json_str, bytes):
            json_str = json_str.decode("utf-8")

        print(f"type of json_str: {type(json_str)}")

        if model.startswith("bedrock/invoke/"):
            assert "https://awsmp-logos.s3.amazonaws.com" not in json_str
            assert '"type":"base64"' in json_str or '"type": "base64"' in json_str
            assert '"data"' in json_str
        elif model.startswith("bedrock/"):
            assert "https://awsmp-logos.s3.amazonaws.com" not in json_str
            assert '"bytes"' in json_str or '"bytes":' in json_str
        elif model.startswith("anthropic/"):
            assert "https://awsmp-logos.s3.amazonaws.com" in json_str
            assert '"type":"url"' in json_str or '"type": "url"' in json_str
        else:
            assert "png" in json_str
            assert "jpeg" not in json_str

        fetches_image: Final = not model.startswith("anthropic/")
        assert image_route.called is fetches_image
        assert (base64.b64encode(WHITE_PNG).decode() in json_str) is fetches_image


def test_bedrock_latency_optimized_inference():
    from litellm.llms.custom_httpx.http_handler import HTTPHandler

    client = HTTPHandler()
    with patch.object(client, "post") as mock_post:
        try:
            response = litellm.completion(
                model="bedrock/us.anthropic.claude-haiku-4-5-20251001-v1:0",
                messages=[{"role": "user", "content": "Hello, how are you?"}],
                performanceConfig={"latency": "optimized"},
                client=client,
            )
        except Exception as e:
            print(e)

        mock_post.assert_called_once()
        json_data = json.loads(mock_post.call_args.kwargs["data"])
        assert json_data["performanceConfig"]["latency"] == "optimized"


@pytest.mark.parametrize(
    ("custom_llm_provider", "model", "expected"),
    [
        ("anthropic", "claude-sonnet-5", True),
        ("bedrock", "us.anthropic.claude-sonnet-5-20260501-v1:0", True),
        ("bedrock", "arn:aws:bedrock:us-east-1:123456789012:application-inference-profile/abc123", True),
        ("bedrock", "us.amazon.nova-2-lite-v1:0", False),
        ("vertex_ai", "claude-sonnet-5", True),
        ("vertex_ai", "gemini-3.8-flash", False),
        ("azure_ai", "claude-sonnet-4-6", True),
        ("azure_ai", "gpt-5.6", False),
        ("openai", "gpt-5.6", False),
        ("gemini", "gemini-3.8-flash", False),
    ],
)
def test_is_claude_tool_target(custom_llm_provider: str, model: str, expected: bool):
    assert litellm_main._is_claude_tool_target(custom_llm_provider=custom_llm_provider, model=model) is expected


@pytest.mark.parametrize("key", ["input_examples", "eager_input_streaming"])
def test_drop_anthropic_only_tool_keys_strips_tool_and_function_levels(key: str):
    tools = [
        {"type": "function", "name": "example_tool", key: True, "function": {"name": "example_tool", key: True}},
        "opaque_tool",
    ]

    cleaned = litellm_main._drop_anthropic_only_tool_keys(tools=tools)

    assert cleaned == [
        {"type": "function", "name": "example_tool", "function": {"name": "example_tool"}},
        "opaque_tool",
    ]
    assert tools[0][key] is True
    assert tools[0]["function"][key] is True


def test_completion_strips_eager_input_streaming_before_openai(respx_mock: respx.MockRouter, openai_api_response):
    api_base: Final = "http://localhost:12346/v1"
    mock_route: Final = respx_mock.post(url__regex=rf"{api_base}/chat/completions.*").mock(
        return_value=httpx.Response(status_code=200, json=openai_api_response)
    )

    litellm.completion(
        model="openai/gpt-5.6",
        messages=[{"role": "user", "content": "Write the file"}],
        tools=[
            {
                "type": "function",
                "function": {"name": "write_file", "parameters": {"type": "object", "properties": {}}},
                "eager_input_streaming": True,
            }
        ],
        api_base=api_base,
        api_key="fake_openai_api_key",
    )

    assert mock_route.called
    sent_tool: Final = json.loads(respx_mock.calls[0].request.content)["tools"][0]
    assert "eager_input_streaming" not in sent_tool
    assert sent_tool["function"]["name"] == "write_file"


def test_custom_provider_with_extra_headers():

    with patch.object(
        litellm.llms.custom_httpx.http_handler.HTTPHandler, "post"
    ) as mock_post:
        response = litellm.completion(
            model="custom/custom",
            messages=[{"role": "user", "content": "Hello, how are you?"}],
            headers={"X-Custom-Header": "custom-value"},
            api_base="https://example.com/api/v1",
        )

        mock_post.assert_called_once()
        assert mock_post.call_args[1]["headers"]["X-Custom-Header"] == "custom-value"


def test_custom_provider_with_extra_body():

    with patch.object(
        litellm.llms.custom_httpx.http_handler.HTTPHandler, "post"
    ) as mock_post:
        response = litellm.completion(
            model="custom/custom",
            messages=[{"role": "user", "content": "Hello, how are you?"}],
            extra_body={
                "X-Custom-BodyValue": "custom-value",
                "X-Custom-BodyValue2": "custom-value2",
            },
            api_base="https://example.com/api/v1",
        )
        mock_post.assert_called_once()

        assert mock_post.call_args[1]["json"]["X-Custom-BodyValue"] == "custom-value"
        assert mock_post.call_args[1]["json"] == {
            "model": "custom",
            "params": {
                "prompt": ["Hello, how are you?"],
                "max_tokens": None,
                "temperature": None,
                "top_p": None,
                "top_k": None,
            },
            "X-Custom-BodyValue": "custom-value",
            "X-Custom-BodyValue2": "custom-value2",
        }

    # test that extra_body is not passed if not provided
    with patch.object(
        litellm.llms.custom_httpx.http_handler.HTTPHandler, "post"
    ) as mock_post:
        response = litellm.completion(
            model="custom/custom",
            messages=[{"role": "user", "content": "Hello, how are you?"}],
            api_base="https://example.com/api/v1",
        )
        mock_post.assert_called_once()
        assert mock_post.call_args[1]["json"] == {
            "model": "custom",
            "params": {
                "prompt": ["Hello, how are you?"],
                "max_tokens": None,
                "temperature": None,
                "top_p": None,
                "top_k": None,
            },
        }


@pytest.fixture(autouse=True)
def set_openrouter_api_key():
    original_api_key = os.environ.get("OPENROUTER_API_KEY")
    os.environ["OPENROUTER_API_KEY"] = "fake-key-for-testing"
    yield
    if original_api_key is not None:
        os.environ["OPENROUTER_API_KEY"] = original_api_key
    else:
        del os.environ["OPENROUTER_API_KEY"]


@pytest.mark.asyncio
async def test_extra_body_with_fallback(
    respx_mock: respx.MockRouter, set_openrouter_api_key, monkeypatch
):
    """
    test regression for https://github.com/BerriAI/litellm/issues/8425.

    This was perhaps a wider issue with the acompletion function not passing kwargs such as extra_body correctly when fallbacks are specified.
    """

    # Save original state to restore after test
    original_disable_aiohttp = litellm.disable_aiohttp_transport

    try:
        # since this uses respx, we need to set use_aiohttp_transport to False
        # Set both the global variable and environment variable to ensure it takes effect
        litellm.disable_aiohttp_transport = True
        monkeypatch.setenv("DISABLE_AIOHTTP_TRANSPORT", "True")
        # Flush cache to ensure no stale aiohttp clients are used
        litellm.in_memory_llm_clients_cache.flush_cache()

        # Set up test parameters
        model = "openrouter/deepseek/deepseek-chat"
        messages = [{"role": "user", "content": "Hello, world!"}]
        extra_body = {
            "provider": {
                "order": ["DeepSeek"],
                "allow_fallbacks": False,
                "require_parameters": True,
            }
        }
        fallbacks = [{"model": "openrouter/google/gemini-flash-1.5-8b"}]

        # Set up mock to respond to any POST request to the OpenRouter endpoint
        # This ensures it works for both primary and fallback models
        mock_route = respx_mock.post("https://openrouter.ai/api/v1/chat/completions")
        mock_route.return_value = httpx.Response(
            200,
            json={
                "id": "chatcmpl-123",
                "object": "chat.completion",
                "created": 1677652288,
                "model": model,
                "choices": [
                    {
                        "index": 0,
                        "message": {
                            "role": "assistant",
                            "content": "Hello from mocked response!",
                        },
                        "finish_reason": "stop",
                    }
                ],
                "usage": {
                    "prompt_tokens": 9,
                    "completion_tokens": 12,
                    "total_tokens": 21,
                },
            },
        )

        response = await litellm.acompletion(
            model=model,
            messages=messages,
            extra_body=extra_body,
            fallbacks=fallbacks,
            api_key="fake-openrouter-api-key",
        )

        # Verify the response
        assert response is not None
        assert (
            len(respx_mock.calls) > 0
        ), "Mock was not called - check if aiohttp transport is properly disabled"

        # Get the request from the mock
        request: httpx.Request = respx_mock.calls[0].request
        request_body = request.read()
        request_body = json.loads(request_body)

        # Verify basic parameters
        assert request_body["model"] == "deepseek/deepseek-chat"
        assert request_body["messages"] == messages

        # Verify the extra_body parameters remain under the provider key
        assert request_body["provider"]["order"] == ["DeepSeek"]
        assert request_body["provider"]["allow_fallbacks"] is False
        assert request_body["provider"]["require_parameters"] is True
    finally:
        # Restore original state to prevent test pollution
        litellm.disable_aiohttp_transport = original_disable_aiohttp
        litellm.in_memory_llm_clients_cache.flush_cache()


@pytest.mark.parametrize("env_base", ["OPENAI_BASE_URL", "OPENAI_API_BASE"])
@pytest.mark.asyncio
@pytest.mark.flaky(retries=3, delay=1)
async def test_openai_env_base(
    respx_mock: respx.MockRouter, env_base, openai_api_response, monkeypatch
):
    "This tests OpenAI env variables are honored, including legacy OPENAI_API_BASE"
    # Ensure aiohttp transport is disabled to use httpx which respx can mock
    litellm.disable_aiohttp_transport = True

    expected_base_url = "http://localhost:12345/v1"

    # Assign the environment variable based on env_base, and use a fake API key.
    monkeypatch.setenv(env_base, expected_base_url)
    monkeypatch.setenv("OPENAI_API_KEY", "fake_openai_api_key")

    model = "gpt-4o"
    messages = [{"role": "user", "content": "Hello, how are you?"}]

    # Configure respx mock to intercept the request
    mock_route = respx_mock.post(
        url__regex=r"http://localhost:12345/v1/chat/completions.*"
    ).mock(
        return_value=httpx.Response(
            status_code=200,
            json={
                "id": "chatcmpl-123",
                "object": "chat.completion",
                "created": 1677652288,
                "model": model,
                "choices": [
                    {
                        "index": 0,
                        "message": {
                            "role": "assistant",
                            "content": "Hello from mocked response!",
                        },
                        "finish_reason": "stop",
                    }
                ],
                "usage": {
                    "prompt_tokens": 9,
                    "completion_tokens": 12,
                    "total_tokens": 21,
                },
            },
        )
    )

    try:
        response = await litellm.acompletion(model=model, messages=messages)

        # verify we had a response
        assert response.choices[0].message.content == "Hello from mocked response!"

        # Verify the mock was called
        assert (
            mock_route.called
        ), "Mock route was not called - request may have bypassed respx"
    finally:
        # Clean up to avoid affecting other tests
        litellm.disable_aiohttp_transport = False


def build_database_url(username, password, host, dbname):
    username_enc = urllib.parse.quote_plus(username)
    password_enc = urllib.parse.quote_plus(password)
    dbname_enc = urllib.parse.quote_plus(dbname)
    return f"postgresql://{username_enc}:{password_enc}@{host}/{dbname_enc}"


def test_build_database_url():
    url = build_database_url("user@name", "p@ss:word", "localhost", "db/name")
    assert url == "postgresql://user%40name:p%40ss%3Aword@localhost/db%2Fname"


def test_bedrock_llama():
    litellm._turn_on_debug()
    from litellm.types.utils import CallTypes
    from litellm.utils import return_raw_request

    model = "bedrock/invoke/us.meta.llama4-scout-17b-instruct-v1:0"

    request = return_raw_request(
        endpoint=CallTypes.completion,
        kwargs={
            "model": model,
            "messages": [
                {"role": "user", "content": "hi"},
            ],
        },
    )
    print(request)

    assert (
        request["raw_request_body"]["prompt"]
        == "<|begin_of_text|><|start_header_id|>user<|end_header_id|>\n\nhi<|eot_id|><|start_header_id|>assistant<|end_header_id|>\n\n"
    )


def _mocked_openai_chat_response(model: str) -> httpx.Response:
    return httpx.Response(
        status_code=200,
        json={
            "id": "chatcmpl-123",
            "object": "chat.completion",
            "created": 1677652288,
            "model": model,
            "choices": [
                {
                    "index": 0,
                    "message": {
                        "role": "assistant",
                        "content": "Hello from mocked response!",
                    },
                    "finish_reason": "stop",
                }
            ],
            "usage": {
                "prompt_tokens": 9,
                "completion_tokens": 12,
                "total_tokens": 21,
            },
        },
    )


def test_return_raw_request_does_not_call_provider(respx_mock: respx.MockRouter):
    """Regression for #33952: return_raw_request must transform without contacting the provider.

    Previously return_raw_request invoked the real endpoint with a fake key and relied on the
    provider rejecting it, which sent an unintended inference request and (in the async proxy
    route) blocked the event loop on provider I/O.
    """
    from litellm.types.utils import CallTypes
    from litellm.utils import return_raw_request

    model = "gpt-4o"
    route = respx_mock.post("https://api.openai.com/v1/chat/completions").mock(
        return_value=_mocked_openai_chat_response(model)
    )

    request = return_raw_request(
        endpoint=CallTypes.completion,
        kwargs={
            "model": model,
            "messages": [{"role": "user", "content": "hi"}],
        },
    )

    assert route.call_count == 0
    assert request.get("error") is None
    assert request["raw_request_body"]["model"] == model
    assert request["raw_request_body"]["messages"] == [
        {"role": "user", "content": "hi"}
    ]


def test_completion_forwards_verbosity_in_raw_request(respx_mock: respx.MockRouter):
    """Regression test: completion() must forward the verbosity param to the provider request body."""
    from litellm.types.utils import CallTypes
    from litellm.utils import return_raw_request

    model = "gpt-5.2"
    messages = [{"role": "user", "content": "hi"}]
    respx_mock.post("https://api.openai.com/v1/chat/completions").mock(
        return_value=_mocked_openai_chat_response(model)
    )

    request = return_raw_request(
        endpoint=CallTypes.completion,
        kwargs={
            "model": model,
            "messages": messages,
            "verbosity": "high",
        },
    )

    assert request["raw_request_body"]["verbosity"] == "high"
    assert request["raw_request_body"]["model"] == model
    assert request["raw_request_body"]["messages"] == messages


@pytest.mark.asyncio
async def test_acompletion_forwards_verbosity_to_provider_request(
    respx_mock: respx.MockRouter, monkeypatch
):
    """Regression test: acompletion() must forward the verbosity param to the provider request body."""
    original_disable_aiohttp = litellm.disable_aiohttp_transport
    try:
        litellm.disable_aiohttp_transport = True
        monkeypatch.setenv("DISABLE_AIOHTTP_TRANSPORT", "True")
        litellm.in_memory_llm_clients_cache.flush_cache()

        model = "gpt-5.2"
        messages = [{"role": "user", "content": "hi"}]
        mock_route = respx_mock.post("https://api.openai.com/v1/chat/completions").mock(
            return_value=_mocked_openai_chat_response(model)
        )

        response = await litellm.acompletion(
            model=model,
            messages=messages,
            verbosity="low",
            api_key="fake-openai-api-key",
        )

        assert response.choices[0].message.content == "Hello from mocked response!"
        assert mock_route.called
        request_body = json.loads(respx_mock.calls[0].request.read())
        assert request_body["verbosity"] == "low"
        assert request_body["model"] == model
        assert request_body["messages"] == messages
    finally:
        litellm.disable_aiohttp_transport = original_disable_aiohttp
        litellm.in_memory_llm_clients_cache.flush_cache()


def test_responses_api_bridge_check_strips_responses_prefix():
    """Test that responses_api_bridge_check strips 'responses/' prefix and sets mode."""
    from litellm.main import responses_api_bridge_check

    with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
        mock_get_model_info.return_value = {"max_tokens": 4096}

        model_info, model = responses_api_bridge_check(
            model="responses/gpt-4-responses",
            custom_llm_provider="openai",
        )

        assert model == "gpt-4-responses"
        assert model_info["mode"] == "responses"


def test_responses_api_bridge_check_gpt_5_4_pro():
    """Test that gpt-5.4-pro routes through responses API bridge, not chat completions.

    Regression test for https://github.com/BerriAI/litellm/issues/23014
    gpt-5.4-pro is a responses-only model and must not be sent to /v1/chat/completions.
    """
    from litellm.main import responses_api_bridge_check

    for model_name in ["gpt-5.4-pro", "gpt-5.4-pro-2026-03-05"]:
        model_info, model = responses_api_bridge_check(
            model=model_name,
            custom_llm_provider="openai",
        )
        assert (
            model_info.get("mode") == "responses"
        ), f"{model_name} should have mode='responses', got '{model_info.get('mode')}'"


def test_responses_api_bridge_check_gpt_5_4_tools_plus_reasoning_routes_to_responses():
    """gpt-5.4 with both tools and reasoning_effort should route to Responses API."""
    from litellm.main import responses_api_bridge_check

    with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
        mock_get_model_info.return_value = {"max_tokens": 128000}
        model_info, model = responses_api_bridge_check(
            model="gpt-5.4",
            custom_llm_provider="openai",
            tools=[{"type": "function", "function": {"name": "get_capital"}}],
            reasoning_effort="xhigh",
        )

    assert model == "gpt-5.4"
    assert model_info.get("mode") == "responses"


def test_responses_api_bridge_check_gpt_6_astra_tools_with_default_reasoning_routes_to_responses():
    from litellm.main import responses_api_bridge_check

    model_info, model = responses_api_bridge_check(
        model="gpt-6-astra",
        custom_llm_provider="openai",
        tools=[{"type": "function", "function": {"name": "get_capital"}}],
    )

    assert model == "gpt-6-astra"
    assert model_info.get("mode") == "responses"


def test_responses_api_bridge_check_gpt_5_5_tools_plus_reasoning_routes_to_responses():
    """gpt-5.5+ with both tools and reasoning_effort should route to Responses API."""
    from litellm.main import responses_api_bridge_check

    with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
        mock_get_model_info.return_value = {"max_tokens": 128000}
        model_info, model = responses_api_bridge_check(
            model="gpt-5.5-pro",
            custom_llm_provider="openai",
            tools=[{"type": "function", "function": {"name": "get_capital"}}],
            reasoning_effort="xhigh",
        )

    assert model == "gpt-5.5-pro"
    assert model_info.get("mode") == "responses"


def test_responses_api_bridge_check_azure_gpt_5_4_tools_plus_reasoning_routes_to_responses():
    """Azure gpt-5.4 with both tools and reasoning_effort should route to Responses API."""
    from litellm.main import responses_api_bridge_check

    with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
        mock_get_model_info.return_value = {"max_tokens": 128000}
        model_info, model = responses_api_bridge_check(
            model="gpt-5.4",
            custom_llm_provider="azure",
            tools=[{"type": "function", "function": {"name": "get_capital"}}],
            reasoning_effort="high",
        )

    assert model == "gpt-5.4"
    assert model_info.get("mode") == "responses"


def test_responses_api_bridge_check_azure_gpt_5_4_tools_with_default_reasoning_routes_to_responses():
    """
    Azure gpt-5.4 with tools and UNSET reasoning_effort must bridge: OpenAI enables
    reasoning by default for gpt-5.4+, and Chat Completions rejects function tools
    whenever reasoning is on.
    """
    from litellm.main import responses_api_bridge_check

    with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
        mock_get_model_info.return_value = {"max_tokens": 128000}
        model_info, model = responses_api_bridge_check(
            model="gpt-5.4",
            custom_llm_provider="azure",
            tools=[{"type": "function", "function": {"name": "get_capital"}}],
            reasoning_effort=None,
        )

    assert model == "gpt-5.4"
    assert model_info.get("mode") == "responses"


def test_responses_api_bridge_check_gpt_5_4_tools_with_default_reasoning_routes_to_responses():
    """
    gpt-5.4 with tools and UNSET reasoning_effort must bridge: OpenAI enables reasoning
    by default for gpt-5.4+, and Chat Completions rejects function tools whenever
    reasoning is on ("use /v1/responses or set reasoning_effort to 'none'").
    """
    from litellm.main import responses_api_bridge_check

    with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
        mock_get_model_info.return_value = {"max_tokens": 128000}
        model_info, model = responses_api_bridge_check(
            model="gpt-5.4",
            custom_llm_provider="openai",
            tools=[{"type": "function", "function": {"name": "get_capital"}}],
            reasoning_effort=None,
        )

    assert model == "gpt-5.4"
    assert model_info.get("mode") == "responses"


@pytest.mark.parametrize(
    "model_name, expected_mode",
    [
        pytest.param("gpt-5.6-sol", "responses", id="above-boundary-bridges"),
        pytest.param("gpt-5.1", None, id="below-boundary-stays-chat"),
    ],
)
def test_responses_api_bridge_check_gpt_5_6_tools_with_default_reasoning_routes_to_responses(
    monkeypatch, model_name, expected_mode
):
    """
    gpt-5.6 must bridge on function tools alone. The bridge used to require an explicit
    reasoning_effort, so a gpt-5.6 call carrying tools and no effort was rejected with
    "Function tools with reasoning_effort are not supported for gpt-5.6-sol in
    /v1/chat/completions".

    Paired with a model below the gpt-5.4 boundary, which must still stay on chat. The
    gate parses the version and drops any suffix, so the family members bridge
    identically and only the boundary distinguishes behaviour.
    """
    import litellm
    from litellm.main import responses_api_bridge_check

    monkeypatch.delenv("OPENAI_BASE_URL", raising=False)
    monkeypatch.delenv("OPENAI_API_BASE", raising=False)
    monkeypatch.setattr(litellm, "api_base", None)

    with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
        mock_get_model_info.return_value = {"max_tokens": 128000}
        model_info, model = responses_api_bridge_check(
            model=model_name,
            custom_llm_provider="openai",
            tools=[{"type": "function", "function": {"name": "get_capital"}}],
            reasoning_effort=None,
        )

    assert model == model_name
    assert model_info.get("mode") == expected_mode


def test_responses_api_bridge_check_gpt_5_4_tools_with_reasoning_none_stays_chat():
    """
    Explicit reasoning_effort "none" is OpenAI's documented escape hatch that keeps
    function tools servable on Chat Completions; the bridge must not fire.
    """
    from litellm.main import responses_api_bridge_check

    with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
        mock_get_model_info.return_value = {"max_tokens": 128000}
        model_info, model = responses_api_bridge_check(
            model="gpt-5.4",
            custom_llm_provider="openai",
            tools=[{"type": "function", "function": {"name": "get_capital"}}],
            reasoning_effort="none",
        )

    assert model == "gpt-5.4"
    assert model_info.get("mode") != "responses"


def test_responses_api_bridge_check_reasoning_none_with_summary_still_routes_to_responses():
    """A reasoning summary is Responses-only regardless of effort value."""
    from litellm.main import responses_api_bridge_check

    with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
        mock_get_model_info.return_value = {"max_tokens": 128000}
        model_info, model = responses_api_bridge_check(
            model="gpt-5.4",
            custom_llm_provider="openai",
            reasoning_effort="none",
            reasoning_summary="detailed",
        )

    assert model == "gpt-5.4"
    assert model_info.get("mode") == "responses"


def test_responses_api_bridge_check_gpt_5_4_custom_tools_only_stays_chat():
    """
    Chat Completions serves custom (grammar) tools natively with reasoning on; only
    FUNCTION tools trigger the OpenAI rejection. Custom-only requests must stay on chat
    so responses keep the native custom tool_call shape instead of the bridge's
    function-shaped mapping.
    """
    from litellm.main import responses_api_bridge_check

    with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
        mock_get_model_info.return_value = {"max_tokens": 128000}
        model_info, model = responses_api_bridge_check(
            model="gpt-5.6",
            custom_llm_provider="openai",
            tools=[{"type": "custom", "custom": {"name": "ApplyPatch", "description": "V4A patch"}}],
            reasoning_effort=None,
        )

    assert model == "gpt-5.6"
    assert model_info.get("mode") != "responses"


def test_responses_api_bridge_check_gpt_5_4_mixed_function_and_custom_tools_routes_to_responses():
    """One function tool in the mix is enough to make chat unservable with reasoning on."""
    from litellm.main import responses_api_bridge_check

    with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
        mock_get_model_info.return_value = {"max_tokens": 128000}
        model_info, model = responses_api_bridge_check(
            model="gpt-5.6",
            custom_llm_provider="openai",
            tools=[
                {"type": "custom", "custom": {"name": "ApplyPatch"}},
                {"type": "function", "function": {"name": "shell"}},
            ],
            reasoning_effort=None,
        )

    assert model == "gpt-5.6"
    assert model_info.get("mode") == "responses"


def test_responses_api_bridge_check_gpt_5_4_flat_function_tool_routes_to_responses():
    """Responses-style flat function tool defs still count as function tools."""
    from litellm.main import responses_api_bridge_check

    with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
        mock_get_model_info.return_value = {"max_tokens": 128000}
        model_info, model = responses_api_bridge_check(
            model="gpt-5.6",
            custom_llm_provider="openai",
            tools=[{"type": "function", "name": "shell", "parameters": {"type": "object"}}],
            reasoning_effort=None,
        )

    assert model == "gpt-5.6"
    assert model_info.get("mode") == "responses"


@pytest.mark.parametrize(
    "custom_llm_provider, model_name, api_base",
    [
        pytest.param("openai", "gpt-5.6", None, id="openai"),
        pytest.param("azure_ai", "gpt-6-astra", "https://myproject.services.ai.azure.com", id="azure-ai-foundry"),
    ],
)
def test_responses_api_bridge_check_function_tool_without_body_stays_chat(
    monkeypatch, custom_llm_provider, model_name, api_base
):
    import litellm
    from litellm.main import responses_api_bridge_check

    monkeypatch.delenv("OPENAI_BASE_URL", raising=False)
    monkeypatch.delenv("OPENAI_API_BASE", raising=False)
    monkeypatch.setattr(litellm, "api_base", None)

    model_info, model = responses_api_bridge_check(
        model=model_name,
        custom_llm_provider=custom_llm_provider,
        tools=[{"type": "function"}],
        reasoning_effort=None,
        api_base=api_base,
    )

    assert model == model_name
    assert model_info.get("mode") != "responses"


def test_responses_api_bridge_check_dict_effort_none_stays_chat():
    """The escape hatch must honor litellm's dict form: {"effort": "none"} means reasoning off."""
    from litellm.main import responses_api_bridge_check

    with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
        mock_get_model_info.return_value = {"max_tokens": 128000}
        model_info, model = responses_api_bridge_check(
            model="gpt-5.6",
            custom_llm_provider="openai",
            tools=[{"type": "function", "function": {"name": "get_capital"}}],
            reasoning_effort={"effort": "none"},
        )

    assert model == "gpt-5.6"
    assert model_info.get("mode") != "responses"


def test_responses_api_bridge_check_dict_effort_active_routes_to_responses():
    from litellm.main import responses_api_bridge_check

    with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
        mock_get_model_info.return_value = {"max_tokens": 128000}
        model_info, model = responses_api_bridge_check(
            model="gpt-5.6",
            custom_llm_provider="openai",
            tools=[{"type": "function", "function": {"name": "get_capital"}}],
            reasoning_effort={"effort": "low"},
        )

    assert model == "gpt-5.6"
    assert model_info.get("mode") == "responses"


def test_responses_api_bridge_check_dict_effort_none_with_summary_routes_to_responses():
    """A summary inside the dict form is Responses-only even when effort is none."""
    from litellm.main import responses_api_bridge_check

    with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
        mock_get_model_info.return_value = {"max_tokens": 128000}
        model_info, model = responses_api_bridge_check(
            model="gpt-5.6",
            custom_llm_provider="openai",
            tools=[{"type": "function", "function": {"name": "get_capital"}}],
            reasoning_effort={"effort": "none", "summary": "concise"},
        )

    assert model == "gpt-5.6"
    assert model_info.get("mode") == "responses"


@pytest.mark.parametrize("blank_api_base", [None, "", "   ", "\t"])
def test_responses_api_bridge_check_blank_api_base_is_default_openai(blank_api_base):
    """
    A blank api_base (None, empty, or whitespace) resolves to the default OpenAI
    endpoint downstream, which enforces the reasoning+tools constraint, so gpt-5.4+
    function-tool requests with unset reasoning_effort must still auto-bridge.
    """
    from litellm.main import responses_api_bridge_check

    with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
        mock_get_model_info.return_value = {"max_tokens": 128000}
        model_info, model = responses_api_bridge_check(
            model="gpt-5.6",
            custom_llm_provider="openai",
            tools=[{"type": "function", "function": {"name": "get_capital"}}],
            reasoning_effort=None,
            api_base=blank_api_base,
        )

    assert model == "gpt-5.6"
    assert model_info.get("mode") == "responses"


def test_responses_api_bridge_check_custom_api_base_with_unset_effort_stays_chat():
    """
    Chat-only OpenAI-compatible backends registered under the openai provider with a
    custom api_base and gpt-5.4+ model names serve tools-without-reasoning fine and
    have no /responses route; the unset-effort arm must not reroute them.
    """
    from litellm.main import responses_api_bridge_check

    with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
        mock_get_model_info.return_value = {"max_tokens": 128000}
        model_info, model = responses_api_bridge_check(
            model="gpt-5.6",
            custom_llm_provider="openai",
            tools=[{"type": "function", "function": {"name": "get_capital"}}],
            reasoning_effort=None,
            api_base="http://vllm.internal:8000/v1",
        )

    assert model == "gpt-5.6"
    assert model_info.get("mode") != "responses"


def test_responses_api_bridge_check_custom_api_base_via_global_with_unset_effort_stays_chat(monkeypatch):
    """
    A custom base set through the litellm.api_base global (not the call arg) is resolved the
    same way the chat handler resolves it, so the unset-effort arm must not reroute a chat-only
    backend to a /responses route it lacks. Regression guard: the gate previously inspected only
    the call-level api_base and bridged these requests.
    """
    import litellm
    from litellm.main import responses_api_bridge_check

    monkeypatch.setattr(litellm, "api_base", "http://vllm.internal:8000/v1")
    with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
        mock_get_model_info.return_value = {"max_tokens": 128000}
        model_info, model = responses_api_bridge_check(
            model="gpt-5.6",
            custom_llm_provider="openai",
            tools=[{"type": "function", "function": {"name": "get_capital"}}],
            reasoning_effort=None,
            api_base=None,
        )

    assert model == "gpt-5.6"
    assert model_info.get("mode") != "responses"


@pytest.mark.parametrize("env_var", ["OPENAI_BASE_URL", "OPENAI_API_BASE"])
def test_responses_api_bridge_check_custom_api_base_via_env_with_unset_effort_stays_chat(monkeypatch, env_var):
    """
    A custom base set via OPENAI_BASE_URL/OPENAI_API_BASE env is resolved identically to the chat
    handler, so the unset-effort arm leaves the request on chat instead of bridging it.
    """
    import litellm
    from litellm.main import responses_api_bridge_check

    monkeypatch.setattr(litellm, "api_base", None)
    monkeypatch.delenv("OPENAI_BASE_URL", raising=False)
    monkeypatch.delenv("OPENAI_API_BASE", raising=False)
    monkeypatch.setenv(env_var, "http://vllm.internal:8000/v1")
    with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
        mock_get_model_info.return_value = {"max_tokens": 128000}
        model_info, model = responses_api_bridge_check(
            model="gpt-5.6",
            custom_llm_provider="openai",
            tools=[{"type": "function", "function": {"name": "get_capital"}}],
            reasoning_effort=None,
            api_base=None,
        )

    assert model == "gpt-5.6"
    assert model_info.get("mode") != "responses"


@pytest.mark.parametrize(
    "api_base",
    [
        "https://southcentralus.privatelink.api.openai.com/v1",
        "https://privatelink.corp.api.openai.com/v1",
        "https://api.openai.com:443/v1",
        "https://api.openai.com/v1/",
        "HTTPS://API.OPENAI.COM/v1",
    ],
)
def test_responses_api_bridge_check_openai_backed_custom_api_base_with_unset_effort_routes_to_responses(api_base):
    """
    A custom api_base whose host is api.openai.com or a subdomain of it (a PrivateLink hostname, a
    port-qualified or trailing-slash default) still reaches the real OpenAI backend, which rejects
    function tools with reasoning on Chat Completions, so the unset-effort arm must bridge exactly as
    it does for the literal default URL. Regression guard for GH #39353.
    """
    from litellm.main import responses_api_bridge_check

    model_info, model = responses_api_bridge_check(
        model="gpt-5.6",
        custom_llm_provider="openai",
        tools=[{"type": "function", "function": {"name": "get_capital"}}],
        reasoning_effort=None,
        api_base=api_base,
        )

    assert model == "gpt-5.6"
    assert model_info.get("mode") == "responses"


@pytest.mark.parametrize(
    "api_base",
    [
        "https://api.openai.com.evil.example/v1",
        "https://notapi.openai.com/v1",
        "https://gateway.example/v1?upstream=api.openai.com",
        "https://openai.internal.example/api.openai.com/v1",
    ],
)
def test_responses_api_bridge_check_lookalike_custom_api_base_with_unset_effort_stays_chat(api_base):
    """Only the host decides: api.openai.com appearing elsewhere in the URL is still a foreign backend."""
    from litellm.main import responses_api_bridge_check

    model_info, model = responses_api_bridge_check(
        model="gpt-5.6",
        custom_llm_provider="openai",
        tools=[{"type": "function", "function": {"name": "get_capital"}}],
        reasoning_effort=None,
        api_base=api_base,
        )

    assert model == "gpt-5.6"
    assert model_info.get("mode") != "responses"


def test_responses_api_bridge_check_privatelink_api_base_via_env_with_unset_effort_routes_to_responses(monkeypatch):
    """A PrivateLink base set through OPENAI_BASE_URL resolves the way the chat handler's does and still bridges."""
    import litellm
    from litellm.main import responses_api_bridge_check

    monkeypatch.setattr(litellm, "api_base", None)
    monkeypatch.delenv("OPENAI_API_BASE", raising=False)
    monkeypatch.setenv("OPENAI_BASE_URL", "https://southcentralus.privatelink.api.openai.com/v1")
    model_info, model = responses_api_bridge_check(
        model="gpt-5.6",
        custom_llm_provider="openai",
        tools=[{"type": "function", "function": {"name": "get_capital"}}],
        reasoning_effort=None,
        api_base=None,
        )

    assert model == "gpt-5.6"
    assert model_info.get("mode") == "responses"


def test_responses_api_bridge_check_custom_api_base_with_explicit_effort_still_routes():
    """Explicit reasoning_effort keeps its pre-existing bridging behavior on any api_base."""
    from litellm.main import responses_api_bridge_check

    with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
        mock_get_model_info.return_value = {"max_tokens": 128000}
        model_info, model = responses_api_bridge_check(
            model="gpt-5.6",
            custom_llm_provider="openai",
            tools=[{"type": "function", "function": {"name": "get_capital"}}],
            reasoning_effort="high",
            api_base="http://vllm.internal:8000/v1",
        )

    assert model == "gpt-5.6"
    assert model_info.get("mode") == "responses"


def test_responses_api_bridge_check_azure_with_api_base_and_unset_effort_routes():
    """Azure OpenAI always sets api_base and does enforce the constraint; keep bridging."""
    from litellm.main import responses_api_bridge_check

    with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
        mock_get_model_info.return_value = {"max_tokens": 128000}
        model_info, model = responses_api_bridge_check(
            model="gpt-5.4",
            custom_llm_provider="azure",
            tools=[{"type": "function", "function": {"name": "get_capital"}}],
            reasoning_effort=None,
            api_base="https://myresource.openai.azure.com",
        )

    assert model == "gpt-5.4"
    assert model_info.get("mode") == "responses"


_FOUNDRY_API_BASE: Final = "https://myproject.services.ai.azure.com"
_FOUNDRY_FUNCTION_TOOL: Final = ({"type": "function", "function": {"name": "get_weather"}},)


@pytest.mark.parametrize(
    "model_name, api_base, reasoning_effort",
    [
        pytest.param("gpt-6-astra", _FOUNDRY_API_BASE, None, id="gpt-6-unset-effort"),
        pytest.param("gpt-6-astra", _FOUNDRY_API_BASE, "low", id="gpt-6-explicit-effort"),
        pytest.param("gpt-6-astra", "https://myresource.openai.azure.com", None, id="gpt-6-azure-openai-host"),
        pytest.param("gpt-5.6-sol", _FOUNDRY_API_BASE, "low", id="gpt-5.6-explicit-effort"),
        pytest.param("gpt-5.6-sol", _FOUNDRY_API_BASE, {"effort": "high"}, id="gpt-5.6-explicit-effort-dict"),
    ],
)
def test_responses_api_bridge_check_azure_ai_foundry_rejected_tools_route_to_responses(
    model_name, api_base, reasoning_effort
):
    from litellm.main import responses_api_bridge_check

    model_info, model = responses_api_bridge_check(
        model=model_name,
        custom_llm_provider="azure_ai",
        tools=_FOUNDRY_FUNCTION_TOOL,
        reasoning_effort=reasoning_effort,
        api_base=api_base,
    )

    assert model == model_name
    assert model_info.get("mode") == "responses"


@pytest.mark.parametrize(
    "model_name, api_base, reasoning_effort",
    [
        pytest.param("gpt-6-astra", _FOUNDRY_API_BASE, "none", id="explicit-none-stays-chat"),
        pytest.param("gpt-5.6-sol", _FOUNDRY_API_BASE, None, id="gpt-5.6-unset-effort-stays-chat"),
        pytest.param("gpt-5.6-sol", _FOUNDRY_API_BASE, "none", id="gpt-5.6-explicit-none-stays-chat"),
        pytest.param("gpt-5.5", _FOUNDRY_API_BASE, "high", id="gpt-5.5-explicit-effort-stays-chat"),
        pytest.param("gpt-5.4-mini", _FOUNDRY_API_BASE, None, id="gpt-5.4-mini-unset-effort-stays-chat"),
        pytest.param("gpt-5.4-mini", _FOUNDRY_API_BASE, "low", id="gpt-5.4-mini-explicit-effort-stays-chat"),
        pytest.param("gpt-6-astra", "https://myproject.models.ai.azure.com", None, id="serverless-host-stays-chat"),
        pytest.param("Mistral-large-2411", _FOUNDRY_API_BASE, None, id="non-gpt-5-model-stays-chat"),
        pytest.param("claude-opus-4-1", _FOUNDRY_API_BASE, None, id="claude-on-foundry-stays-chat"),
    ],
)
def test_responses_api_bridge_check_azure_ai_without_foundry_responses_route_stays_chat(
    model_name, api_base, reasoning_effort
):
    from litellm.main import responses_api_bridge_check

    model_info, model = responses_api_bridge_check(
        model=model_name,
        custom_llm_provider="azure_ai",
        tools=_FOUNDRY_FUNCTION_TOOL,
        reasoning_effort=reasoning_effort,
        api_base=api_base,
    )

    assert model == model_name
    assert model_info.get("mode") != "responses"


def test_responses_api_bridge_check_older_gpt_5_tools_without_reasoning_stays_chat():
    """Pre-5.4 GPT-5 names keep the old boundary: tools alone never bridge."""
    from litellm.main import responses_api_bridge_check

    with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
        mock_get_model_info.return_value = {"max_tokens": 128000}
        model_info, model = responses_api_bridge_check(
            model="gpt-5.1",
            custom_llm_provider="openai",
            tools=[{"type": "function", "function": {"name": "get_capital"}}],
            reasoning_effort=None,
        )

    assert model == "gpt-5.1"
    assert model_info.get("mode") != "responses"


def test_responses_api_bridge_check_gpt_5_4_reasoning_summary_without_tools_routes_to_responses():
    """gpt-5.4+ with reasoning_effort + reasoningSummary but no tools should bridge (AI SDK)."""
    from litellm.main import responses_api_bridge_check

    with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
        mock_get_model_info.return_value = {"max_tokens": 128000}
        model_info, model = responses_api_bridge_check(
            model="gpt-5.4",
            custom_llm_provider="openai",
            tools=None,
            reasoning_effort="medium",
            reasoning_summary="auto",
        )

    assert model == "gpt-5.4"
    assert model_info.get("mode") == "responses"


def test_responses_api_bridge_check_gpt_5_reasoning_summary_routes_to_responses():
    """Bare ``gpt-5`` with reasoning_effort + reasoningSummary should bridge (not 5.4+)."""
    from litellm.main import responses_api_bridge_check

    with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
        mock_get_model_info.return_value = {"max_tokens": 128000}
        model_info, model = responses_api_bridge_check(
            model="gpt-5",
            custom_llm_provider="openai",
            tools=None,
            reasoning_effort="medium",
            reasoning_summary="auto",
        )

    assert model == "gpt-5"
    assert model_info.get("mode") == "responses"


def test_responses_api_bridge_check_gpt_5_tools_without_summary_stays_chat():
    """gpt-5 with tools + reasoning_effort but no summary should stay on chat."""
    from litellm.main import responses_api_bridge_check

    with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
        mock_get_model_info.return_value = {"max_tokens": 128000}
        model_info, model = responses_api_bridge_check(
            model="gpt-5",
            custom_llm_provider="openai",
            tools=[{"type": "function", "function": {"name": "get_capital"}}],
            reasoning_effort="medium",
            reasoning_summary=None,
        )

    assert model == "gpt-5"
    assert model_info.get("mode") != "responses"


@patch("litellm.completion_extras.responses_api_bridge.completion")
def test_gpt_5_4_responses_bridge_preserves_reasoning_summary_dict(
    mock_responses_completion,
):
    """When routed to Responses, preserve reasoning_effort summary dict."""
    mock_responses_completion.return_value = MagicMock()

    import litellm

    litellm.completion(
        model="gpt-5.4",
        messages=[{"role": "user", "content": "What is the capital of France?"}],
        tools=[
            {
                "type": "function",
                "function": {
                    "name": "get_capital",
                    "description": "Get the capital of a country",
                    "parameters": {
                        "type": "object",
                        "properties": {"country": {"type": "string"}},
                    },
                },
            }
        ],
        reasoning_effort={"effort": "xhigh", "summary": "detailed"},
        api_key="fake-key",
    )

    assert mock_responses_completion.called is True
    optional_params = mock_responses_completion.call_args.kwargs["optional_params"]
    assert optional_params["reasoning_effort"] == {
        "effort": "xhigh",
        "summary": "detailed",
    }


@pytest.mark.parametrize("reasoning_effort", ["high", {"effort": "high"}])
def test_responses_bridge_preserves_reasoning_effort_with_drop_params(
    reasoning_effort,
    restore_model_registry,
    respx_mock: respx.MockRouter,
    monkeypatch: pytest.MonkeyPatch,
):
    monkeypatch.setattr(litellm, "disable_aiohttp_transport", True)
    response_body: Final = {
        "id": "resp_test",
        "object": "response",
        "created_at": 1734366691,
        "status": "completed",
        "model": "test-responses-bridge",
        "output": [
            {
                "type": "message",
                "id": "msg_1",
                "status": "completed",
                "role": "assistant",
                "content": [{"type": "output_text", "text": "Done.", "annotations": []}],
            }
        ],
        "parallel_tool_calls": True,
        "usage": {
            "input_tokens": 1,
            "output_tokens": 1,
            "total_tokens": 2,
            "output_tokens_details": {"reasoning_tokens": 0},
        },
        "error": None,
        "incomplete_details": None,
        "instructions": None,
        "metadata": None,
        "temperature": None,
        "tool_choice": "auto",
        "tools": [],
        "top_p": None,
        "max_output_tokens": None,
        "previous_response_id": None,
        "reasoning": None,
        "truncation": None,
        "user": None,
    }
    response_route: Final = respx_mock.post("https://api.perplexity.ai/v1/responses").respond(json=response_body)
    model: Final = "perplexity/test-responses-bridge"
    litellm.register_model(
        {
            model: {
                "litellm_provider": "perplexity",
                "mode": "responses",
                "supports_reasoning": False,
                "input_cost_per_token": 0.0,
                "output_cost_per_token": 0.0,
            }
        },
        persist_across_reloads=False,
    )

    litellm.completion(
        model=model,
        messages=[{"role": "user", "content": "hello"}],
        reasoning_effort=reasoning_effort,
        drop_params=True,
        api_key="fake-key",
        api_base="https://api.perplexity.ai",
    )

    request_body: Final = json.loads(response_route.calls[0].request.content)
    assert request_body["reasoning"] == {"effort": "high"}


_FOUNDRY_RESPONSES_FUNCTION_CALL_BODY: Final = {
    "id": "resp_foundry",
    "object": "response",
    "created_at": 1789852145,
    "status": "completed",
    "model": "gpt-6-astra",
    "output": [
        {
            "id": "fc_1",
            "type": "function_call",
            "status": "completed",
            "arguments": '{"city":"Paris"}',
            "call_id": "call_1",
            "name": "get_weather",
        }
    ],
    "parallel_tool_calls": True,
    "usage": {
        "input_tokens": 53,
        "output_tokens": 18,
        "total_tokens": 71,
        "output_tokens_details": {"reasoning_tokens": 0},
    },
    "error": None,
    "incomplete_details": None,
    "instructions": None,
    "metadata": {},
    "temperature": 1.0,
    "tool_choice": "auto",
    "tools": [],
    "top_p": 1.0,
    "max_output_tokens": 200,
    "previous_response_id": None,
    "reasoning": {"effort": "medium", "summary": None},
    "truncation": "disabled",
    "user": None,
}


def test_completion_bridges_azure_ai_foundry_gpt_5_4_plus_function_tools_to_responses(
    respx_mock: respx.MockRouter, monkeypatch: pytest.MonkeyPatch
):
    monkeypatch.setattr(litellm, "disable_aiohttp_transport", True)
    responses_route: Final = respx_mock.post(f"{_FOUNDRY_API_BASE}/openai/v1/responses").respond(
        json=_FOUNDRY_RESPONSES_FUNCTION_CALL_BODY
    )

    response: Final = litellm.completion(
        model="azure_ai/gpt-6-astra",
        messages=[{"role": "user", "content": "What is the weather in Paris? Use the tool."}],
        tools=[
            {
                "type": "function",
                "function": {
                    "name": "get_weather",
                    "description": "Get weather for a city",
                    "parameters": {"type": "object", "properties": {"city": {"type": "string"}}, "required": ["city"]},
                },
            }
        ],
        max_tokens=200,
        api_base=_FOUNDRY_API_BASE,
        api_key="fake-foundry-key",
    )

    assert [str(call.request.url) for call in respx_mock.calls] == [f"{_FOUNDRY_API_BASE}/openai/v1/responses"]
    request: Final = responses_route.calls[0].request
    request_body: Final = json.loads(request.content)
    assert request_body["tools"][0]["type"] == "function"
    assert request_body["tools"][0]["name"] == "get_weather"
    assert request.headers["api-key"] == "fake-foundry-key"
    assert response.choices[0].finish_reason == "tool_calls"
    assert response.choices[0].message.tool_calls[0].function.name == "get_weather"


@pytest.mark.parametrize(
    "model, model_info, expected_model_param, expected_base_model_param",
    [
        ("gemini/gemini-3.1-pro", None, "gemini-3.1-pro", None),
        (
            "gemini/gemini-3.1-pro",
            {"base_model": "gemini-3.1-pro-preview"},
            "gemini-3.1-pro",
            "gemini-3.1-pro-preview",
        ),
    ],
)
def test_completion_optional_params_base_model(
    model: str,
    model_info: dict | None,
    expected_model_param: str,
    expected_base_model_param: str | None,
):
    """``model_info.base_model`` must reach ``get_optional_params`` as ``base_model``
    (an additive capability hint), without overwriting ``model`` with the label.

    Regression for #29618: overwriting ``model`` with a friendly ``base_model``
    label made Bedrock drop ``tools``/``tool_choice`` under ``drop_params``."""
    with patch("litellm.main.get_optional_params") as mock_get_optional_params:
        mock_get_optional_params.return_value = MagicMock()

        import litellm

        kwargs = {
            "model": model,
            "messages": [{"role": "user", "content": "What is the capital of France?"}],
            "api_key": "fake-key",
            "mock_response": "Hey, how's it going?",
        }
        if model_info is not None:
            kwargs["model_info"] = model_info

        litellm.completion(**kwargs)

        assert mock_get_optional_params.called is True
        call_kwargs = mock_get_optional_params.call_args.kwargs
        assert call_kwargs["model"] == expected_model_param
        assert call_kwargs["base_model"] == expected_base_model_param


@patch("litellm.completion_extras.responses_api_bridge.completion")
def test_gpt_5_4_responses_bridge_merges_reasoning_summary_kwarg_without_tools(
    mock_responses_completion,
):
    """reasoningSummary without tools should route and merge into reasoning_effort dict."""
    mock_responses_completion.return_value = MagicMock()

    import litellm

    litellm.completion(
        model="gpt-5.4",
        messages=[{"role": "user", "content": "ok"}],
        reasoning_effort="medium",
        reasoningSummary="auto",
        api_key="fake-key",
    )

    assert mock_responses_completion.called is True
    optional_params = mock_responses_completion.call_args.kwargs["optional_params"]
    assert optional_params["reasoning_effort"] == {
        "effort": "medium",
        "summary": "auto",
    }
    assert "reasoningSummary" not in optional_params
    assert "reasoning_summary" not in optional_params


@patch("litellm.completion_extras.responses_api_bridge.completion")
def test_responses_bridge_preserves_reasoning_summary_without_effort(
    mock_responses_completion,
):
    """Reasoning summary should survive responses routing even without effort."""
    mock_responses_completion.return_value = MagicMock()

    import litellm

    with patch.object(litellm, "route_all_chat_openai_to_responses", True):
        litellm.completion(
            model="gpt-4o",
            messages=[{"role": "user", "content": "ok"}],
            reasoningSummary="auto",
            api_key="fake-key",
        )

    assert mock_responses_completion.called is True
    optional_params = mock_responses_completion.call_args.kwargs["optional_params"]
    assert optional_params["reasoning_effort"] == {"summary": "auto"}
    assert "reasoningSummary" not in optional_params
    assert "reasoning_summary" not in optional_params


@patch("litellm.completion_extras.responses_api_bridge.completion")
def test_gpt_5_responses_bridge_tools_and_reasoning_summary(
    mock_responses_completion,
):
    """Bare gpt-5 with tools + reasoningSummary should bridge (OpenCode-style)."""
    mock_responses_completion.return_value = MagicMock()

    import litellm

    litellm.completion(
        model="gpt-5",
        messages=[{"role": "user", "content": "ok"}],
        tools=[
            {
                "type": "function",
                "function": {
                    "name": "apply_patch",
                    "parameters": {"type": "object", "properties": {}},
                },
            }
        ],
        tool_choice="auto",
        reasoning_effort="medium",
        reasoningSummary="auto",
        stream=True,
        api_key="fake-key",
    )

    assert mock_responses_completion.called is True
    optional_params = mock_responses_completion.call_args.kwargs["optional_params"]
    assert optional_params.get("reasoning_effort") == {
        "effort": "medium",
        "summary": "auto",
    }


def test_responses_api_bridge_check_handles_exception():
    """Test that responses_api_bridge_check handles exceptions and still processes responses/ models."""
    from litellm.main import responses_api_bridge_check

    with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
        mock_get_model_info.side_effect = Exception("Model not found")

        model_info, model = responses_api_bridge_check(
            model="responses/custom-model", custom_llm_provider="custom"
        )

        assert model == "custom-model"
        assert model_info["mode"] == "responses"


def test_responses_api_bridge_check_global_flag_routes_openai():
    """When route_all_chat_openai_to_responses is True, any OpenAI model routes to responses."""
    from litellm.main import responses_api_bridge_check

    with patch.object(litellm, "route_all_chat_openai_to_responses", True):
        model_info, model = responses_api_bridge_check(
            model="gpt-4o",
            custom_llm_provider="openai",
        )

    assert model == "gpt-4o"
    assert model_info.get("mode") == "responses"


def test_responses_api_bridge_check_global_flag_does_not_affect_azure():
    """route_all_chat_openai_to_responses should not affect Azure models."""
    from litellm.main import responses_api_bridge_check

    with patch.object(litellm, "route_all_chat_openai_to_responses", True):
        with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
            mock_get_model_info.return_value = {"max_tokens": 4096}
            model_info, model = responses_api_bridge_check(
                model="gpt-4o",
                custom_llm_provider="azure",
            )

    assert model_info.get("mode") != "responses"


def test_responses_api_bridge_check_global_flag_default_false():
    """By default, route_all_chat_openai_to_responses is False and doesn't affect routing."""
    from litellm.main import responses_api_bridge_check

    with patch.object(litellm, "route_all_chat_openai_to_responses", False):
        with patch("litellm.main._get_model_info_helper") as mock_get_model_info:
            mock_get_model_info.return_value = {"max_tokens": 4096}
            model_info, model = responses_api_bridge_check(
                model="gpt-4o",
                custom_llm_provider="openai",
            )

    assert model_info.get("mode") != "responses"


@pytest.mark.asyncio
async def test_async_mock_delay():
    """Use asyncio await for mock delay on acompletion"""
    import time

    from litellm import acompletion

    start_time = time.time()
    result = await acompletion(
        model="gpt-3.5-turbo",
        messages=[{"role": "user", "content": "Hey, how's it going?"}],
        mock_delay=0.01,
        mock_response="Hello world",
    )
    end_time = time.time()
    delay = end_time - start_time
    assert delay >= 0.01


def test_stream_chunk_builder_keeps_tool_calls_carried_only_by_a_later_choice_of_a_multi_choice_chunk():
    from litellm import stream_chunk_builder
    from litellm.types.utils import (
        ChatCompletionDeltaToolCall,
        Delta,
        Function,
        ModelResponseStream,
        StreamingChoices,
    )

    def chunk(choices: list[StreamingChoices]) -> ModelResponseStream:
        return ModelResponseStream(
            id="chatcmpl-multi-choice",
            created=1751934860,
            model="gpt-4.1-mini",
            object="chat.completion.chunk",
            choices=choices,
        )

    chunks = [
        chunk(
            [
                StreamingChoices(index=0, delta=Delta(role="assistant", content="hello")),
                StreamingChoices(
                    index=1,
                    delta=Delta(
                        role="assistant",
                        tool_calls=[
                            ChatCompletionDeltaToolCall(
                                id="call_1",
                                index=0,
                                type="function",
                                function=Function(name="lookup_fruit", arguments='{"fruit":'),
                            )
                        ],
                    ),
                ),
            ]
        ),
        chunk(
            [
                StreamingChoices(index=0, delta=Delta(content=" world"), finish_reason="stop"),
                StreamingChoices(
                    index=1,
                    delta=Delta(
                        tool_calls=[ChatCompletionDeltaToolCall(index=0, function=Function(arguments='"kiwi"}'))]
                    ),
                    finish_reason="tool_calls",
                ),
            ]
        ),
    ]

    response = stream_chunk_builder(chunks=chunks)

    tool_calls = response.choices[0].message.tool_calls
    assert tool_calls is not None
    assert [(call.id, call.function.name, call.function.arguments) for call in tool_calls] == [
        ("call_1", "lookup_fruit", '{"fruit":"kiwi"}')
    ]


def test_stream_chunk_builder_thinking_blocks():
    from litellm import stream_chunk_builder
    from litellm.types.utils import Delta, ModelResponseStream, StreamingChoices

    chunks = [
        ModelResponseStream(
            id="chatcmpl-e8febeb7-cf7d-4947-9417-59ae5e6989f9",
            created=1751934860,
            model="claude-3-7-sonnet-latest",
            object="chat.completion.chunk",
            system_fingerprint=None,
            choices=[
                StreamingChoices(
                    finish_reason=None,
                    index=0,
                    delta=Delta(
                        reasoning_content="I need to summar",
                        thinking_blocks=[
                            {
                                "type": "thinking",
                                "thinking": "I need to summar",
                                "signature": None,
                            }
                        ],
                        provider_specific_fields={
                            "thinking_blocks": [
                                {
                                    "type": "thinking",
                                    "thinking": "I need to summar",
                                    "signature": None,
                                }
                            ]
                        },
                        content="",
                        role="assistant",
                        function_call=None,
                        tool_calls=None,
                        audio=None,
                    ),
                    logprobs=None,
                )
            ],
            provider_specific_fields=None,
            citations=None,
        ),
        ModelResponseStream(
            id="chatcmpl-e8febeb7-cf7d-4947-9417-59ae5e6989f9",
            created=1751934860,
            model="claude-3-7-sonnet-latest",
            object="chat.completion.chunk",
            system_fingerprint=None,
            choices=[
                StreamingChoices(
                    finish_reason=None,
                    index=0,
                    delta=Delta(
                        reasoning_content="ize the previous agent's thinking process into a",
                        thinking_blocks=[
                            {
                                "type": "thinking",
                                "thinking": "ize the previous agent's thinking process into a",
                                "signature": None,
                            }
                        ],
                        provider_specific_fields={
                            "thinking_blocks": [
                                {
                                    "type": "thinking",
                                    "thinking": "ize the previous agent's thinking process into a",
                                    "signature": None,
                                }
                            ]
                        },
                        content="",
                        role=None,
                        function_call=None,
                        tool_calls=None,
                        audio=None,
                    ),
                    logprobs=None,
                )
            ],
            provider_specific_fields=None,
            citations=None,
        ),
        ModelResponseStream(
            id="chatcmpl-e8febeb7-cf7d-4947-9417-59ae5e6989f9",
            created=1751934860,
            model="claude-3-7-sonnet-latest",
            object="chat.completion.chunk",
            system_fingerprint=None,
            choices=[
                StreamingChoices(
                    finish_reason=None,
                    index=0,
                    delta=Delta(
                        reasoning_content=" short description. Based on the input data provide",
                        thinking_blocks=[
                            {
                                "type": "thinking",
                                "thinking": " short description. Based on the input data provide",
                                "signature": None,
                            }
                        ],
                        provider_specific_fields={
                            "thinking_blocks": [
                                {
                                    "type": "thinking",
                                    "thinking": " short description. Based on the input data provide",
                                    "signature": None,
                                }
                            ]
                        },
                        content="",
                        role=None,
                        function_call=None,
                        tool_calls=None,
                        audio=None,
                    ),
                    logprobs=None,
                )
            ],
            provider_specific_fields=None,
            citations=None,
        ),
        ModelResponseStream(
            id="chatcmpl-e8febeb7-cf7d-4947-9417-59ae5e6989f9",
            created=1751934860,
            model="claude-3-7-sonnet-latest",
            object="chat.completion.chunk",
            system_fingerprint=None,
            choices=[
                StreamingChoices(
                    finish_reason=None,
                    index=0,
                    delta=Delta(
                        reasoning_content="d, it seems the agent was planning to refine their search",
                        thinking_blocks=[
                            {
                                "type": "thinking",
                                "thinking": "d, it seems the agent was planning to refine their search",
                                "signature": None,
                            }
                        ],
                        provider_specific_fields={
                            "thinking_blocks": [
                                {
                                    "type": "thinking",
                                    "thinking": "d, it seems the agent was planning to refine their search",
                                    "signature": None,
                                }
                            ]
                        },
                        content="",
                        role=None,
                        function_call=None,
                        tool_calls=None,
                        audio=None,
                    ),
                    logprobs=None,
                )
            ],
            provider_specific_fields=None,
            citations=None,
        ),
        ModelResponseStream(
            id="chatcmpl-e8febeb7-cf7d-4947-9417-59ae5e6989f9",
            created=1751934860,
            model="claude-3-7-sonnet-latest",
            object="chat.completion.chunk",
            system_fingerprint=None,
            choices=[
                StreamingChoices(
                    finish_reason=None,
                    index=0,
                    delta=Delta(
                        reasoning_content=" to focus more on technical aspects of home automation and home",
                        thinking_blocks=[
                            {
                                "type": "thinking",
                                "thinking": " to focus more on technical aspects of home automation and home",
                                "signature": None,
                            }
                        ],
                        provider_specific_fields={
                            "thinking_blocks": [
                                {
                                    "type": "thinking",
                                    "thinking": " to focus more on technical aspects of home automation and home",
                                    "signature": None,
                                }
                            ]
                        },
                        content="",
                        role=None,
                        function_call=None,
                        tool_calls=None,
                        audio=None,
                    ),
                    logprobs=None,
                )
            ],
            provider_specific_fields=None,
            citations=None,
        ),
        ModelResponseStream(
            id="chatcmpl-e8febeb7-cf7d-4947-9417-59ae5e6989f9",
            created=1751934860,
            model="claude-3-7-sonnet-latest",
            object="chat.completion.chunk",
            system_fingerprint=None,
            choices=[
                StreamingChoices(
                    finish_reason=None,
                    index=0,
                    delta=Delta(
                        reasoning_content=" energy system management.\n\nI'll create a brief",
                        thinking_blocks=[
                            {
                                "type": "thinking",
                                "thinking": " energy system management.\n\nI'll create a brief",
                                "signature": None,
                            }
                        ],
                        provider_specific_fields={
                            "thinking_blocks": [
                                {
                                    "type": "thinking",
                                    "thinking": " energy system management.\n\nI'll create a brief",
                                    "signature": None,
                                }
                            ]
                        },
                        content="",
                        role=None,
                        function_call=None,
                        tool_calls=None,
                        audio=None,
                    ),
                    logprobs=None,
                )
            ],
            provider_specific_fields=None,
            citations=None,
        ),
        ModelResponseStream(
            id="chatcmpl-e8febeb7-cf7d-4947-9417-59ae5e6989f9",
            created=1751934860,
            model="claude-3-7-sonnet-latest",
            object="chat.completion.chunk",
            system_fingerprint=None,
            choices=[
                StreamingChoices(
                    finish_reason=None,
                    index=0,
                    delta=Delta(
                        reasoning_content=" summary of what the agent was doing.",
                        thinking_blocks=[
                            {
                                "type": "thinking",
                                "thinking": " summary of what the agent was doing.",
                                "signature": None,
                            }
                        ],
                        provider_specific_fields={
                            "thinking_blocks": [
                                {
                                    "type": "thinking",
                                    "thinking": " summary of what the agent was doing.",
                                    "signature": None,
                                }
                            ]
                        },
                        content="",
                        role=None,
                        function_call=None,
                        tool_calls=None,
                        audio=None,
                    ),
                    logprobs=None,
                )
            ],
            provider_specific_fields=None,
            citations=None,
        ),
        ModelResponseStream(
            id="chatcmpl-e8febeb7-cf7d-4947-9417-59ae5e6989f9",
            created=1751934860,
            model="claude-3-7-sonnet-latest",
            object="chat.completion.chunk",
            system_fingerprint=None,
            choices=[
                StreamingChoices(
                    finish_reason=None,
                    index=0,
                    delta=Delta(
                        reasoning_content="",
                        thinking_blocks=[
                            {
                                "type": "thinking",
                                "thinking": "",
                                "signature": "ErUBCkYIBRgCIkAKBSMkB2+MBF643wiWxlERsGXVdlhbPx9lnTIbygzjFIeZ5uhTV+HNWDon9vQV4hmXvAKwQfwS8vkNFB366l05Egzt2U18IpRrZRyQn1UaDDdYvKHYP8Ps1IbWjSIw8eSYOU9gtqNcwR6D0wY7iOPx2GliDEatLI5rSs96CByoTIoADL2M5bX8KP0jEpbHKh0ccYryigdH/3J8EiFt/BmGUceVASP5l9r22dFWiBgC",
                            }
                        ],
                        provider_specific_fields={
                            "thinking_blocks": [
                                {
                                    "type": "thinking",
                                    "thinking": "",
                                    "signature": "ErUBCkYIBRgCIkAKBSMkB2+MBF643wiWxlERsGXVdlhbPx9lnTIbygzjFIeZ5uhTV+HNWDon9vQV4hmXvAKwQfwS8vkNFB366l05Egzt2U18IpRrZRyQn1UaDDdYvKHYP8Ps1IbWjSIw8eSYOU9gtqNcwR6D0wY7iOPx2GliDEatLI5rSs96CByoTIoADL2M5bX8KP0jEpbHKh0ccYryigdH/3J8EiFt/BmGUceVASP5l9r22dFWiBgC",
                                }
                            ]
                        },
                        content="",
                        role=None,
                        function_call=None,
                        tool_calls=None,
                        audio=None,
                    ),
                    logprobs=None,
                )
            ],
            provider_specific_fields=None,
            citations=None,
        ),
        ModelResponseStream(
            id="chatcmpl-e8febeb7-cf7d-4947-9417-59ae5e6989f9",
            created=1751934860,
            model="claude-3-7-sonnet-latest",
            object="chat.completion.chunk",
            system_fingerprint=None,
            choices=[
                StreamingChoices(
                    finish_reason=None,
                    index=1,
                    delta=Delta(
                        provider_specific_fields=None,
                        content='{"a',
                        role=None,
                        function_call=None,
                        tool_calls=None,
                        audio=None,
                    ),
                    logprobs=None,
                )
            ],
            provider_specific_fields=None,
            citations=None,
        ),
        ModelResponseStream(
            id="chatcmpl-e8febeb7-cf7d-4947-9417-59ae5e6989f9",
            created=1751934860,
            model="claude-3-7-sonnet-latest",
            object="chat.completion.chunk",
            system_fingerprint=None,
            choices=[
                StreamingChoices(
                    finish_reason=None,
                    index=1,
                    delta=Delta(
                        provider_specific_fields=None,
                        content='gent_doing"',
                        role=None,
                        function_call=None,
                        tool_calls=None,
                        audio=None,
                    ),
                    logprobs=None,
                )
            ],
            provider_specific_fields=None,
            citations=None,
        ),
        ModelResponseStream(
            id="chatcmpl-e8febeb7-cf7d-4947-9417-59ae5e6989f9",
            created=1751934860,
            model="claude-3-7-sonnet-latest",
            object="chat.completion.chunk",
            system_fingerprint=None,
            choices=[
                StreamingChoices(
                    finish_reason=None,
                    index=1,
                    delta=Delta(
                        provider_specific_fields=None,
                        content=': "Re',
                        role=None,
                        function_call=None,
                        tool_calls=None,
                        audio=None,
                    ),
                    logprobs=None,
                )
            ],
            provider_specific_fields=None,
            citations=None,
        ),
        ModelResponseStream(
            id="chatcmpl-e8febeb7-cf7d-4947-9417-59ae5e6989f9",
            created=1751934860,
            model="claude-3-7-sonnet-latest",
            object="chat.completion.chunk",
            system_fingerprint=None,
            choices=[
                StreamingChoices(
                    finish_reason=None,
                    index=1,
                    delta=Delta(
                        provider_specific_fields=None,
                        content="searching",
                        role=None,
                        function_call=None,
                        tool_calls=None,
                        audio=None,
                    ),
                    logprobs=None,
                )
            ],
            provider_specific_fields=None,
            citations=None,
        ),
        ModelResponseStream(
            id="chatcmpl-e8febeb7-cf7d-4947-9417-59ae5e6989f9",
            created=1751934860,
            model="claude-3-7-sonnet-latest",
            object="chat.completion.chunk",
            system_fingerprint=None,
            choices=[
                StreamingChoices(
                    finish_reason=None,
                    index=1,
                    delta=Delta(
                        provider_specific_fields=None,
                        content=" technic",
                        role=None,
                        function_call=None,
                        tool_calls=None,
                        audio=None,
                    ),
                    logprobs=None,
                )
            ],
            provider_specific_fields=None,
            citations=None,
        ),
        ModelResponseStream(
            id="chatcmpl-e8febeb7-cf7d-4947-9417-59ae5e6989f9",
            created=1751934860,
            model="claude-3-7-sonnet-latest",
            object="chat.completion.chunk",
            system_fingerprint=None,
            choices=[
                StreamingChoices(
                    finish_reason=None,
                    index=1,
                    delta=Delta(
                        provider_specific_fields=None,
                        content="al aspect",
                        role=None,
                        function_call=None,
                        tool_calls=None,
                        audio=None,
                    ),
                    logprobs=None,
                )
            ],
            provider_specific_fields=None,
            citations=None,
        ),
        ModelResponseStream(
            id="chatcmpl-e8febeb7-cf7d-4947-9417-59ae5e6989f9",
            created=1751934860,
            model="claude-3-7-sonnet-latest",
            object="chat.completion.chunk",
            system_fingerprint=None,
            choices=[
                StreamingChoices(
                    finish_reason=None,
                    index=1,
                    delta=Delta(
                        provider_specific_fields=None,
                        content="s of home au",
                        role=None,
                        function_call=None,
                        tool_calls=None,
                        audio=None,
                    ),
                    logprobs=None,
                )
            ],
            provider_specific_fields=None,
            citations=None,
        ),
        ModelResponseStream(
            id="chatcmpl-e8febeb7-cf7d-4947-9417-59ae5e6989f9",
            created=1751934860,
            model="claude-3-7-sonnet-latest",
            object="chat.completion.chunk",
            system_fingerprint=None,
            choices=[
                StreamingChoices(
                    finish_reason=None,
                    index=1,
                    delta=Delta(
                        provider_specific_fields=None,
                        content='tomation"}',
                        role=None,
                        function_call=None,
                        tool_calls=None,
                        audio=None,
                    ),
                    logprobs=None,
                )
            ],
            provider_specific_fields=None,
            citations=None,
        ),
        ModelResponseStream(
            id="chatcmpl-e8febeb7-cf7d-4947-9417-59ae5e6989f9",
            created=1751934860,
            model="claude-3-7-sonnet-latest",
            object="chat.completion.chunk",
            system_fingerprint=None,
            choices=[
                StreamingChoices(
                    finish_reason="tool_calls",
                    index=0,
                    delta=Delta(
                        provider_specific_fields=None,
                        content=None,
                        role=None,
                        function_call=None,
                        tool_calls=None,
                        audio=None,
                    ),
                    logprobs=None,
                )
            ],
            provider_specific_fields=None,
        ),
    ]

    response = stream_chunk_builder(chunks=chunks)
    print(response)

    assert response is not None
    assert response.choices[0].message.content is not None
    assert response.choices[0].message.thinking_blocks is not None


from litellm.llms.openai.openai import OpenAIChatCompletion


def throw_retryable_error(*_, **__):
    raise RuntimeError("BOOM")


@pytest.mark.asyncio
async def test_retrying() -> None:
    litellm.num_retries = 10
    with (
        patch.object(
            OpenAIChatCompletion,
            "make_openai_chat_completion_request",
            side_effect=throw_retryable_error,
        ) as mock_request,
        pytest.raises(litellm.InternalServerError, match="LiteLLM Retried: 10 times"),
    ):
        await litellm.acompletion(
            model="gpt-4o-mini",
            messages=[{"role": "user", "content": "Hello"}],
        )


def test_anthropic_disable_url_suffix_env_var():
    """Test that LITELLM_ANTHROPIC_DISABLE_URL_SUFFIX prevents /v1/messages suffix."""
    import os
    from unittest.mock import MagicMock, patch

    from litellm import completion

    # Test with environment variable disabled (default behavior)
    with patch.dict(os.environ, {"ANTHROPIC_API_BASE": "https://api.example.com"}):
        actual_api_base = None

        with patch("litellm.main.anthropic_chat_completions") as mock_anthropic:

            def capture_completion(**kwargs):
                nonlocal actual_api_base
                actual_api_base = kwargs.get("api_base")
                mock_response = MagicMock()
                mock_response.choices = [MagicMock()]
                return mock_response

            mock_anthropic.completion = capture_completion

            # This should append /v1/messages
            completion(
                model="anthropic/claude-3-sonnet",
                messages=[{"role": "user", "content": "test"}],
                api_key="test-key",
            )

            # Verify the api_base has /v1/messages appended
            assert actual_api_base.endswith("/v1/messages")
            assert actual_api_base == "https://api.example.com/v1/messages"

    # Test with environment variable enabled
    with patch.dict(
        os.environ,
        {
            "ANTHROPIC_API_BASE": "https://api.example.com/custom/path",
            "LITELLM_ANTHROPIC_DISABLE_URL_SUFFIX": "true",
        },
    ):
        actual_api_base = None

        with patch("litellm.main.anthropic_chat_completions") as mock_anthropic:

            def capture_completion(**kwargs):
                nonlocal actual_api_base
                actual_api_base = kwargs.get("api_base")
                mock_response = MagicMock()
                mock_response.choices = [MagicMock()]
                return mock_response

            mock_anthropic.completion = capture_completion

            # This should NOT append /v1/messages
            completion(
                model="anthropic/claude-3-sonnet",
                messages=[{"role": "user", "content": "test"}],
                api_key="test-key",
            )

            # Verify the api_base does not have /v1/messages appended
            assert actual_api_base == "https://api.example.com/custom/path"
            assert not actual_api_base.endswith("/v1/messages")


def test_anthropic_text_disable_url_suffix_env_var():
    """Test that LITELLM_ANTHROPIC_DISABLE_URL_SUFFIX prevents /v1/complete suffix for anthropic_text."""
    import os
    from unittest.mock import MagicMock, patch

    from litellm import completion

    # Test with environment variable disabled (default behavior)
    with patch.dict(os.environ, {"ANTHROPIC_API_BASE": "https://api.example.com"}):
        actual_api_base = None

        with patch("litellm.main.base_llm_http_handler") as mock_handler:

            def capture_completion(**kwargs):
                nonlocal actual_api_base
                actual_api_base = kwargs.get("api_base")
                return MagicMock()

            mock_handler.completion = capture_completion

            # This should append /v1/complete
            completion(
                model="anthropic_text/claude-instant-1",
                messages=[{"role": "user", "content": "test"}],
                api_key="test-key",
            )

            # Verify the api_base has /v1/complete appended
            assert actual_api_base.endswith("/v1/complete")
            assert actual_api_base == "https://api.example.com/v1/complete"

    # Test with environment variable enabled
    with patch.dict(
        os.environ,
        {
            "ANTHROPIC_API_BASE": "https://api.example.com/custom/complete",
            "LITELLM_ANTHROPIC_DISABLE_URL_SUFFIX": "true",
        },
    ):
        actual_api_base = None

        with patch("litellm.main.base_llm_http_handler") as mock_handler:

            def capture_completion(**kwargs):
                nonlocal actual_api_base
                actual_api_base = kwargs.get("api_base")
                return MagicMock()

            mock_handler.completion = capture_completion

            # This should NOT append /v1/complete
            completion(
                model="anthropic_text/claude-instant-1",
                messages=[{"role": "user", "content": "test"}],
                api_key="test-key",
            )

            # Verify the api_base does not have /v1/complete appended
            assert actual_api_base == "https://api.example.com/custom/complete"
            assert not actual_api_base.endswith("/v1/complete")


def test_image_edit_merges_headers_and_extra_headers():
    from litellm.images.main import base_llm_http_handler

    combined_headers = {
        "x-test-header-one": "value-1",
        "x-test-header-two": "value-2",
    }

    mock_image_edit_config = MagicMock()
    mock_image_edit_config.get_supported_openai_params.return_value = set()
    mock_image_edit_config.map_openai_params.side_effect = lambda **kwargs: dict(
        kwargs["image_edit_optional_params"]
    )

    with (
        patch(
            "litellm.images.main.ProviderConfigManager.get_provider_image_edit_config",
            return_value=mock_image_edit_config,
        ) as mock_config,
        patch.object(
            base_llm_http_handler,
            "image_edit_handler",
            return_value="ok",
        ) as mock_handler,
    ):
        response = litellm.image_edit(
            image=MagicMock(name="image"),
            prompt="test",
            model="azure/gpt-image-1",
            headers={"x-test-header-one": "value-1"},
            extra_headers={
                "x-test-header-two": "value-2",
            },
        )

    assert response == "ok"
    mock_config.assert_called_once()

    handler_kwargs = mock_handler.call_args.kwargs
    assert handler_kwargs["extra_headers"] == combined_headers
    assert "extra_headers" not in handler_kwargs["image_edit_optional_request_params"]


@pytest.mark.parametrize("metadata_key", ("metadata", "litellm_metadata"))
@pytest.mark.parametrize("input_tokens", (51234, 0))
def test_mock_completion_usage_reports_admission_input_tokens(metadata_key: str, input_tokens: int):
    response = litellm.completion(
        model="anthropic/claude-sonnet-5",
        messages=[{"role": "user", "content": "hello"}],
        mock_response="ok",
        api_key="mock",
        **{metadata_key: {"user_api_key_budget_reservation": {"reserved_cost": 1.0, "input_tokens": input_tokens}}},
    )

    assert response.usage.prompt_tokens == input_tokens
    assert response.usage.total_tokens == input_tokens + response.usage.completion_tokens


def test_mock_completion_usage_falls_back_to_default_without_admission_count():
    response = litellm.completion(
        model="anthropic/claude-sonnet-5",
        messages=[{"role": "user", "content": "hello"}],
        mock_response="ok",
        api_key="mock",
        metadata={"user_api_key_budget_reservation": {"reserved_cost": 1.0}},
    )

    assert response.usage.prompt_tokens == litellm_main.DEFAULT_MOCK_RESPONSE_PROMPT_TOKEN_COUNT


_AZURE_AI_CUSTOM_PRICED_DEPLOYMENT: Final = {
    "model_name": "azure-ai-custom-priced",
    "litellm_params": {
        "model": "azure_ai/gpt-5.6",
        "api_key": "mock",
        "api_base": "https://example.services.ai.azure.com",
        "mock_response": "ok",
        "input_cost_per_token": 3e-6,
        "output_cost_per_token": 7e-6,
        "cache_read_input_token_cost": 1e-7,
        "cache_creation_input_token_cost": 5e-7,
    },
    "model_info": {"id": "azure-ai-custom-priced-deployment-id"},
}


def _expected_custom_price(response: litellm.ModelResponse) -> float:
    params: Final = _AZURE_AI_CUSTOM_PRICED_DEPLOYMENT["litellm_params"]
    return (
        response.usage.prompt_tokens * params["input_cost_per_token"]
        + response.usage.completion_tokens * params["output_cost_per_token"]
    )


@pytest.mark.asyncio
@pytest.mark.parametrize("use_async", (False, True))
async def test_mock_completion_prices_azure_ai_router_deployment_with_custom_pricing(use_async: bool):
    router: Final = litellm.Router(model_list=[_AZURE_AI_CUSTOM_PRICED_DEPLOYMENT])
    messages: Final = [{"role": "user", "content": "hello"}]

    response: Final = (
        await router.acompletion(model="azure-ai-custom-priced", messages=messages)
        if use_async
        else router.completion(model="azure-ai-custom-priced", messages=messages)
    )

    assert response._hidden_params["response_cost"] == pytest.approx(_expected_custom_price(response))
    assert response._hidden_params["custom_llm_provider"] == "azure_ai"


@pytest.mark.parametrize(
    ("model", "expected_provider"),
    (("anthropic/claude-sonnet-5", "anthropic"), ("no-such-provider-model", None)),
)
def test_mock_completion_infers_provider_when_called_directly_without_one(model: str, expected_provider: str | None):
    response: Final = litellm.mock_completion(
        model=model,
        messages=[{"role": "user", "content": "hello"}],
        mock_response="ok",
    )

    assert response.choices[0].message.content == "ok"
    assert response._hidden_params.get("custom_llm_provider") == expected_provider


_ADMISSION_INPUT_TOKENS: Final = 51234


def _admission_metadata(input_tokens: int) -> dict[str, object]:  # mutable-ok: logging writes into metadata
    return {"user_api_key_budget_reservation": {"reserved_cost": 1.0, "input_tokens": input_tokens}}


_ADMISSION_METADATA: Final = _admission_metadata(_ADMISSION_INPUT_TOKENS)
_MOCK_STREAM_MESSAGES: Final = [{"role": "user", "content": "hello " * 200}]
_STREAM_CHUNK_BUILDER_TOKEN_COUNTER: Final = "litellm.litellm_core_utils.streaming_chunk_builder_utils.token_counter"


def _prompt_token_counter_calls(token_counter: MagicMock) -> list[object]:
    return [call for call in token_counter.call_args_list if call.kwargs.get("messages") is not None]


def _client_usage_chunks(chunks: list[ModelResponseStream]) -> list[Usage]:
    return [chunk.usage for chunk in chunks if getattr(chunk, "usage", None) is not None]


@pytest.mark.parametrize("n", (None, 2))
def test_mock_completion_stream_usage_reports_admission_input_tokens_without_tokenizer_fallback(n: int | None):
    with patch(_STREAM_CHUNK_BUILDER_TOKEN_COUNTER, wraps=litellm.token_counter) as token_counter:
        chunks: Final = list(
            litellm.completion(
                model="openai/gpt-5.4-mini",
                messages=_MOCK_STREAM_MESSAGES,
                mock_response="ok",
                api_key="mock",
                stream=True,
                n=n,
                stream_options={"include_usage": True},
                metadata=_ADMISSION_METADATA,
            )
        )

    usage_chunks: Final = _client_usage_chunks(chunks)
    assert len(usage_chunks) == 1
    assert usage_chunks[0].prompt_tokens == _ADMISSION_INPUT_TOKENS
    assert usage_chunks[0].completion_tokens == litellm_main.DEFAULT_MOCK_RESPONSE_COMPLETION_TOKEN_COUNT
    assert usage_chunks[0].total_tokens == _ADMISSION_INPUT_TOKENS + usage_chunks[0].completion_tokens
    assert _prompt_token_counter_calls(token_counter) == []
    assert all(chunk.choices for chunk in chunks[:-1])
    assert {chunk.id for chunk in chunks} == {chunks[0].id}


@pytest.mark.asyncio
@pytest.mark.parametrize("n", (None, 2))
async def test_mock_acompletion_stream_usage_reports_admission_input_tokens_without_tokenizer_fallback(
    n: int | None,
):
    with patch(_STREAM_CHUNK_BUILDER_TOKEN_COUNTER, wraps=litellm.token_counter) as token_counter:
        response: Final = await litellm.acompletion(
            model="openai/gpt-5.4-mini",
            messages=_MOCK_STREAM_MESSAGES,
            mock_response="ok",
            api_key="mock",
            stream=True,
            n=n,
            stream_options={"include_usage": True},
            litellm_metadata=_ADMISSION_METADATA,
        )
        chunks: Final = [chunk async for chunk in response]

    usage_chunks: Final = _client_usage_chunks(chunks)
    assert len(usage_chunks) == 1
    assert usage_chunks[0].prompt_tokens == _ADMISSION_INPUT_TOKENS
    assert usage_chunks[0].total_tokens == _ADMISSION_INPUT_TOKENS + usage_chunks[0].completion_tokens
    assert _prompt_token_counter_calls(token_counter) == []
    assert all(chunk.choices for chunk in chunks[:-1])
    assert {chunk.id for chunk in chunks} == {chunks[0].id}


def test_mock_completion_stream_without_include_usage_hides_usage_chunk_but_logs_admission_count():
    with patch(_STREAM_CHUNK_BUILDER_TOKEN_COUNTER, wraps=litellm.token_counter) as token_counter:
        chunks: Final = list(
            litellm.completion(
                model="openai/gpt-5.4-mini",
                messages=_MOCK_STREAM_MESSAGES,
                mock_response="ok",
                api_key="mock",
                stream=True,
                metadata=_ADMISSION_METADATA,
            )
        )

    assert _client_usage_chunks(chunks) == []
    assert all(len(chunk.choices) == 1 for chunk in chunks)
    assert chunks[-1]._hidden_params["usage"].prompt_tokens == _ADMISSION_INPUT_TOKENS
    assert _prompt_token_counter_calls(token_counter) == []


def test_mock_completion_stream_with_empty_stream_options_completes_and_logs_admission_count():
    with patch(_STREAM_CHUNK_BUILDER_TOKEN_COUNTER, wraps=litellm.token_counter) as token_counter:
        chunks: Final = list(
            litellm.completion(
                model="openai/gpt-5.4-mini",
                messages=_MOCK_STREAM_MESSAGES,
                mock_response="ok",
                api_key="mock",
                stream=True,
                stream_options={},
                metadata=_ADMISSION_METADATA,
            )
        )

    assert "".join(chunk.choices[0].delta.content or "" for chunk in chunks) == "ok"
    assert _client_usage_chunks(chunks) == []
    assert _prompt_token_counter_calls(token_counter) == []


@pytest.mark.asyncio
async def test_mock_acompletion_stream_with_empty_stream_options_completes_and_logs_admission_count():
    with patch(_STREAM_CHUNK_BUILDER_TOKEN_COUNTER, wraps=litellm.token_counter) as token_counter:
        response: Final = await litellm.acompletion(
            model="openai/gpt-5.4-mini",
            messages=_MOCK_STREAM_MESSAGES,
            mock_response="ok",
            api_key="mock",
            stream=True,
            stream_options={},
            litellm_metadata=_ADMISSION_METADATA,
        )
        chunks: Final = [chunk async for chunk in response]

    assert "".join(chunk.choices[0].delta.content or "" for chunk in chunks) == "ok"
    assert _client_usage_chunks(chunks) == []
    assert _prompt_token_counter_calls(token_counter) == []


def test_mock_completion_stream_without_admission_count_falls_back_to_tokenizer():
    expected_prompt_tokens: Final = litellm.token_counter(model="openai/gpt-5.4-mini", messages=_MOCK_STREAM_MESSAGES)
    with patch(_STREAM_CHUNK_BUILDER_TOKEN_COUNTER, wraps=litellm.token_counter) as token_counter:
        chunks: Final = list(
            litellm.completion(
                model="openai/gpt-5.4-mini",
                messages=_MOCK_STREAM_MESSAGES,
                mock_response="ok",
                api_key="mock",
                stream=True,
                stream_options={"include_usage": True},
                metadata={"user_api_key_budget_reservation": {"reserved_cost": 1.0}},
            )
        )

    usage_chunks: Final = _client_usage_chunks(chunks)
    assert len(usage_chunks) == 1
    assert usage_chunks[0].prompt_tokens == expected_prompt_tokens
    assert usage_chunks[0].total_tokens == expected_prompt_tokens + usage_chunks[0].completion_tokens
    assert len(_prompt_token_counter_calls(token_counter)) >= 1


@pytest.mark.asyncio
async def test_mock_acompletion_stream_without_admission_count_falls_back_to_tokenizer():
    expected_prompt_tokens: Final = litellm.token_counter(model="openai/gpt-5.4-mini", messages=_MOCK_STREAM_MESSAGES)
    with patch(_STREAM_CHUNK_BUILDER_TOKEN_COUNTER, wraps=litellm.token_counter) as token_counter:
        response: Final = await litellm.acompletion(
            model="openai/gpt-5.4-mini",
            messages=_MOCK_STREAM_MESSAGES,
            mock_response="ok",
            api_key="mock",
            stream=True,
            stream_options={"include_usage": True},
        )
        chunks: Final = [chunk async for chunk in response]

    usage_chunks: Final = _client_usage_chunks(chunks)
    assert len(usage_chunks) == 1
    assert usage_chunks[0].prompt_tokens == expected_prompt_tokens
    assert len(_prompt_token_counter_calls(token_counter)) >= 1


def _usage_triple(usage: Usage) -> tuple[int, int, int]:
    return (usage.prompt_tokens, usage.completion_tokens, usage.total_tokens)


@pytest.mark.parametrize("input_tokens", (_ADMISSION_INPUT_TOKENS, 0))
def test_mock_completion_stream_and_non_stream_report_the_same_admission_usage(input_tokens: int):
    metadata: Final = _admission_metadata(input_tokens)
    non_stream: Final = litellm.completion(
        model="openai/gpt-5.4-mini",
        messages=_MOCK_STREAM_MESSAGES,
        mock_response="ok",
        api_key="mock",
        metadata=metadata,
    )
    with patch(_STREAM_CHUNK_BUILDER_TOKEN_COUNTER, wraps=litellm.token_counter) as token_counter:
        chunks: Final = list(
            litellm.completion(
                model="openai/gpt-5.4-mini",
                messages=_MOCK_STREAM_MESSAGES,
                mock_response="ok",
                api_key="mock",
                stream=True,
                stream_options={"include_usage": True},
                metadata=metadata,
            )
        )

    assert _usage_triple(non_stream.usage) == _usage_triple(_client_usage_chunks(chunks)[0])
    assert non_stream.usage.prompt_tokens == input_tokens
    assert _prompt_token_counter_calls(token_counter) == []


@pytest.mark.asyncio
async def test_mock_acompletion_stream_reports_zero_admission_input_tokens_without_tokenizer_fallback():
    with patch(_STREAM_CHUNK_BUILDER_TOKEN_COUNTER, wraps=litellm.token_counter) as token_counter:
        response: Final = await litellm.acompletion(
            model="openai/gpt-5.4-mini",
            messages=[{"role": "user", "content": ""}],
            mock_response="ok",
            api_key="mock",
            stream=True,
            stream_options={"include_usage": True},
            litellm_metadata=_admission_metadata(0),
        )
        chunks: Final = [chunk async for chunk in response]

    usage_chunks: Final = _client_usage_chunks(chunks)
    assert len(usage_chunks) == 1
    assert _usage_triple(usage_chunks[0]) == (0, usage_chunks[0].completion_tokens, usage_chunks[0].completion_tokens)
    assert _prompt_token_counter_calls(token_counter) == []


def test_mock_text_completion_stream_and_non_stream_report_the_same_zero_admission_usage():
    metadata: Final = _admission_metadata(0)
    non_stream: Final = litellm.text_completion(
        model="openai/gpt-5.4-mini", prompt="", mock_response="ok", api_key="mock", metadata=metadata
    )
    chunks: Final = list(
        litellm.text_completion(
            model="openai/gpt-5.4-mini",
            prompt="",
            mock_response="ok",
            api_key="mock",
            stream=True,
            stream_options={"include_usage": True},
            metadata=metadata,
        )
    )

    stream_usages: Final = tuple(chunk.usage for chunk in chunks if getattr(chunk, "usage", None) is not None)
    assert len(stream_usages) == 1
    assert _usage_triple(non_stream.usage) == _usage_triple(stream_usages[0])
    assert non_stream.usage.prompt_tokens == 0


def test_mock_completion_stream_with_model_response():
    """Test that mock_completion correctly handles stream=True with a ModelResponse as mock_response."""
    from litellm import completion
    from litellm.types.utils import Choices, Message, ModelResponse, Usage

    # Create a ModelResponse object
    mock_model_response = ModelResponse(
        id="chatcmpl-test-123",
        created=1234567890,
        model="gpt-4o-mini",
        object="chat.completion",
        choices=[
            Choices(
                finish_reason="stop",
                index=0,
                message=Message(
                    content="This is a test response",
                    role="assistant",
                ),
            )
        ],
        usage=Usage(
            prompt_tokens=10,
            completion_tokens=20,
            total_tokens=30,
        ),
    )

    # Call completion with stream=True and mock_response as ModelResponse
    response = completion(
        model="gpt-4o-mini",
        messages=[{"role": "user", "content": "Hello"}],
        stream=True,
        mock_response=mock_model_response,
    )

    # Verify that the response is a stream
    assert response is not None

    # Collect all chunks from the stream
    chunks = []
    for chunk in response:
        chunks.append(chunk)
        print(f"Chunk: {chunk}")

    # Verify we got chunks
    assert len(chunks) > 0

    # Verify the content is streamed correctly
    accumulated_content = ""
    for chunk in chunks:
        if (
            hasattr(chunk.choices[0].delta, "content")
            and chunk.choices[0].delta.content
        ):
            accumulated_content += chunk.choices[0].delta.content

    assert "This is a test response" in accumulated_content or len(chunks) > 0


@pytest.mark.asyncio
async def test_async_mock_completion_stream_with_model_response():
    """Test that async mock_completion correctly handles stream=True with a ModelResponse as mock_response."""
    from litellm import acompletion
    from litellm.types.utils import Choices, Message, ModelResponse, Usage

    # Create a ModelResponse object
    mock_model_response = ModelResponse(
        id="chatcmpl-test-456",
        created=1234567890,
        model="gpt-4o-mini",
        object="chat.completion",
        choices=[
            Choices(
                finish_reason="stop",
                index=0,
                message=Message(
                    content="This is an async test response",
                    role="assistant",
                ),
            )
        ],
        usage=Usage(
            prompt_tokens=15,
            completion_tokens=25,
            total_tokens=40,
        ),
    )

    # Call acompletion with stream=True and mock_response as ModelResponse
    response = await acompletion(
        model="gpt-4o-mini",
        messages=[{"role": "user", "content": "Hello async"}],
        stream=True,
        mock_response=mock_model_response,
    )

    # Verify that the response is a stream
    assert response is not None

    # Collect all chunks from the stream
    chunks = []
    async for chunk in response:
        chunks.append(chunk)
        print(f"Async Chunk: {chunk}")

    # Verify we got chunks
    assert len(chunks) > 0

    # Verify the content is streamed correctly
    accumulated_content = ""
    for chunk in chunks:
        if (
            hasattr(chunk.choices[0].delta, "content")
            and chunk.choices[0].delta.content
        ):
            accumulated_content += chunk.choices[0].delta.content

    assert "This is an async test response" in accumulated_content or len(chunks) > 0


class TestCallTypesOCR:
    """Test that OCR call types are properly defined in CallTypes enum.

    Fixes https://github.com/BerriAI/litellm/issues/17381
    """

    def test_ocr_call_type_exists(self):
        """Test that CallTypes.ocr exists and has correct value."""
        from litellm.types.utils import CallTypes

        assert hasattr(CallTypes, "ocr")
        assert CallTypes.ocr.value == "ocr"

    def test_aocr_call_type_exists(self):
        """Test that CallTypes.aocr exists and has correct value."""
        from litellm.types.utils import CallTypes

        assert hasattr(CallTypes, "aocr")
        assert CallTypes.aocr.value == "aocr"

    def test_ocr_call_type_from_string(self):
        """Test that CallTypes can be constructed from 'ocr' string."""
        from litellm.types.utils import CallTypes

        call_type = CallTypes("ocr")
        assert call_type == CallTypes.ocr

    def test_aocr_call_type_from_string(self):
        """Test that CallTypes can be constructed from 'aocr' string.

        This is the actual use case that was failing - the OCR endpoint
        uses route_type='aocr' and guardrails try to instantiate
        CallTypes('aocr').
        """
        from litellm.types.utils import CallTypes

        call_type = CallTypes("aocr")
        assert call_type == CallTypes.aocr


def test_stream_chunk_builder_text_completion_combines_text_and_usage():
    from litellm.main import stream_chunk_builder_text_completion
    from litellm.types.utils import TextCompletionResponse

    chunks = [
        TextCompletionResponse(
            id="cmpl-1",
            object="text_completion",
            created=1,
            model="gpt-3.5-turbo-instruct",
            choices=[{"text": "Hello", "index": 0, "logprobs": None, "finish_reason": None}],
        ),
        TextCompletionResponse(
            id="cmpl-1",
            object="text_completion",
            created=1,
            model="gpt-3.5-turbo-instruct",
            choices=[{"text": " world", "index": 0, "logprobs": None, "finish_reason": "stop"}],
        ),
    ]

    response = stream_chunk_builder_text_completion(
        chunks=chunks, messages=[{"role": "user", "content": "say hello"}]
    )

    assert response.choices[0].text == "Hello world"
    assert response.choices[0].finish_reason == "stop"
    assert response.usage.prompt_tokens > 0
    assert response.usage.completion_tokens > 0
    assert response.usage.total_tokens == response.usage.prompt_tokens + response.usage.completion_tokens


def test_completion_forwards_store_and_prompt_cache_key_to_openai():
    """
    Regression test for https://github.com/BerriAI/litellm/issues/33184

    store and prompt_cache_key are documented OpenAI chat completion params that
    were accepted as supported but silently dropped before the provider request
    was built, because they were not named parameters of completion() and
    get_optional_params() the way safety_identifier is.
    """
    from openai import OpenAI

    client = OpenAI(api_key="fake-api-key")

    with patch.object(client.chat.completions.with_raw_response, "create") as mock_client:
        try:
            litellm.completion(
                model="openai/gpt-4o",
                messages=[{"role": "user", "content": "Hello"}],
                store=False,
                prompt_cache_key="test-cache-key",
                client=client,
            )
        except Exception as e:
            print(e)

        mock_client.assert_called_once()
        request_body = mock_client.call_args.kwargs
        assert request_body["store"] is False
        assert request_body["prompt_cache_key"] == "test-cache-key"


@pytest.mark.asyncio
async def test_acompletion_forwards_store_and_prompt_cache_key_to_openai():
    """
    Async variant of the store/prompt_cache_key forwarding regression test for
    https://github.com/BerriAI/litellm/issues/33184
    """
    from openai import AsyncOpenAI

    client = AsyncOpenAI(api_key="fake-api-key")

    with patch.object(client.chat.completions.with_raw_response, "create") as mock_client:
        try:
            await litellm.acompletion(
                model="openai/gpt-4o",
                messages=[{"role": "user", "content": "Hello"}],
                store=False,
                prompt_cache_key="test-cache-key",
                client=client,
            )
        except Exception as e:
            print(e)

        mock_client.assert_called_once()
        request_body = mock_client.call_args.kwargs
        assert request_body["store"] is False
        assert request_body["prompt_cache_key"] == "test-cache-key"


def test_completion_omits_store_and_prompt_cache_key_when_not_passed():
    """
    When store and prompt_cache_key are not passed, they must not appear in the
    outbound request body (guards against always forwarding None defaults).
    """
    from openai import OpenAI

    client = OpenAI(api_key="fake-api-key")

    with patch.object(client.chat.completions.with_raw_response, "create") as mock_client:
        try:
            litellm.completion(
                model="openai/gpt-4o",
                messages=[{"role": "user", "content": "Hello"}],
                client=client,
            )
        except Exception as e:
            print(e)

        mock_client.assert_called_once()
        request_body = mock_client.call_args.kwargs
        assert "store" not in request_body
        assert "prompt_cache_key" not in request_body


def test_completion_forwards_store_and_prompt_cache_key_to_mcp_gateway():
    """
    Regression test for the MCP gateway early-return in completion(): store and
    prompt_cache_key are named params, so they no longer travel via **kwargs and
    must be forwarded explicitly like safety_identifier and service_tier.
    """
    with patch.object(
        import_module("litellm.responses.mcp.chat_completions_handler"), "acompletion_with_mcp"
    ) as mock_mcp:
        result = litellm.completion(
            model="openai/gpt-4o",
            messages=[{"role": "user", "content": "Hello"}],
            tools=[{"type": "mcp", "server_url": "litellm_proxy"}],
            store=False,
            prompt_cache_key="test-cache-key",
        )

        result.close()
        mock_mcp.assert_called_once()
        call_kwargs = mock_mcp.call_args.kwargs
        assert call_kwargs["store"] is False
        assert call_kwargs["prompt_cache_key"] == "test-cache-key"


@pytest.mark.asyncio
@pytest.mark.parametrize(
    "aws_credential_kwargs",
    [
        {
            "aws_session_name": "litellm-gcp",
            "aws_role_name": "arn:aws:iam::123456789012:role/litellm-bedrock-role",
            "aws_web_identity_token": "oidc/google/108963886734710037768",
        },
        {
            "aws_access_key_id": "AKIASTATICKEYFORTEST",
            "aws_secret_access_key": "static-secret-key",
            "aws_session_token": "static-session-token",
        },
    ],
    ids=["web_identity", "static_keys"],
)
async def test_acompletion_forwards_aws_credentials_through_responses_bridge(
    respx_mock: respx.MockRouter, monkeypatch, aws_credential_kwargs: dict
):
    from botocore.credentials import Credentials

    from litellm.llms.bedrock.base_aws_llm import BaseAWSLLM

    original_disable_aiohttp = litellm.disable_aiohttp_transport
    try:
        litellm.disable_aiohttp_transport = True
        monkeypatch.setenv("DISABLE_AIOHTTP_TRANSPORT", "True")
        litellm.in_memory_llm_clients_cache.flush_cache()
        monkeypatch.delenv("AWS_BEARER_TOKEN_BEDROCK", raising=False)
        monkeypatch.delenv("BEDROCK_MANTLE_API_KEY", raising=False)

        get_credentials_mock = MagicMock(return_value=Credentials("fake-key", "fake-secret"))
        monkeypatch.setattr(BaseAWSLLM, "get_credentials", get_credentials_mock)

        respx_mock.post("https://bedrock-mantle.us-east-2.api.aws/openai/v1/responses").respond(
            json={
                "id": "resp_123",
                "object": "response",
                "created_at": 1760144904,
                "status": "completed",
                "model": "openai.gpt-5.4",
                "output": [
                    {
                        "type": "message",
                        "id": "msg_1",
                        "role": "assistant",
                        "status": "completed",
                        "content": [{"type": "output_text", "text": "ok", "annotations": []}],
                    }
                ],
            }
        )

        response = await litellm.acompletion(
            model="bedrock_mantle/openai.gpt-5.4",
            messages=[{"role": "user", "content": "hi"}],
            api_base="https://bedrock-mantle.us-east-2.api.aws/v1",
            aws_region_name="us-east-2",
            num_retries=0,
            **aws_credential_kwargs,
        )

        assert response.choices[0].message.content == "ok"
        credential_kwargs = get_credentials_mock.call_args.kwargs
        assert credential_kwargs["aws_region_name"] == "us-east-2"
        for key, value in aws_credential_kwargs.items():
            assert credential_kwargs[key] == value
        authorization = respx_mock.calls.last.request.headers["Authorization"]
        assert authorization.startswith("AWS4-HMAC-SHA256")
        assert "fake-key" in authorization
    finally:
        litellm.disable_aiohttp_transport = original_disable_aiohttp
        litellm.in_memory_llm_clients_cache.flush_cache()


_GEMINI_RESPONSE_BODY = {
    "candidates": [{"content": {"parts": [{"text": "hello"}], "role": "model"}, "finishReason": "STOP"}],
    "usageMetadata": {"promptTokenCount": 2, "candidatesTokenCount": 1, "totalTokenCount": 3},
}


def _gemini_client_returning_a_reply():
    """An injected HTTP client whose post() answers like generativelanguage does."""
    from litellm.llms.custom_httpx.http_handler import HTTPHandler

    client = HTTPHandler()
    request = httpx.Request("POST", "https://generativelanguage.googleapis.com/")
    post = MagicMock(return_value=httpx.Response(200, json=_GEMINI_RESPONSE_BODY, request=request))
    return client, post


@pytest.fixture
def restore_model_registry():
    """litellm.model_cost and the provider name sets are module-global.

    register_model merges into the existing entry in place, hence the deep copy.
    """
    model_cost = copy.deepcopy(litellm.model_cost)
    openai_models = set(litellm.open_ai_chat_completion_models)
    yield
    litellm.model_cost.clear()
    litellm.model_cost.update(model_cost)
    litellm.open_ai_chat_completion_models.clear()
    litellm.open_ai_chat_completion_models.update(openai_models)


def test_openai_model_name_does_not_outrank_explicit_provider():
    """`gemini/gpt-4o` goes to Google, not to litellm's OpenAI handler.

    completion() checks `model in litellm.open_ai_chat_completion_models` ahead of
    the gemini branch, so the call used to reach the OpenAI handler carrying
    VertexGeminiConfig, whose transform_request raises NotImplementedError.
    """
    assert "gpt-4o" in litellm.open_ai_chat_completion_models
    client, post = _gemini_client_returning_a_reply()

    with patch.object(client, "post", new=post):
        response = litellm.completion(
            model="gemini/gpt-4o",
            messages=[{"role": "user", "content": "hello"}],
            api_key="test-api-key",
            client=client,
        )

    assert "generativelanguage.googleapis.com" in post.call_args.kwargs["url"]
    assert "models/gpt-4o" in post.call_args.kwargs["url"]
    assert response.choices[0].message.content == "hello"


def test_mislabelled_pricing_entry_does_not_reroute_provider(restore_model_registry):
    """register_model is the other way into the same failure.

    An entry claiming litellm_provider "openai" adds its name to
    open_ai_chat_completion_models, so one mislabelled price reroutes every later
    call to that model in the process.
    """
    litellm.register_model(
        {
            "gemini-2.5-pro": {
                "litellm_provider": "openai",
                "mode": "chat",
                "input_cost_per_token": 1e-06,
                "output_cost_per_token": 4e-06,
            }
        }
    )
    assert "gemini-2.5-pro" in litellm.open_ai_chat_completion_models
    client, post = _gemini_client_returning_a_reply()

    with patch.object(client, "post", new=post):
        response = litellm.completion(
            model="gemini/gemini-2.5-pro",
            messages=[{"role": "user", "content": "hello"}],
            api_key="test-api-key",
            client=client,
        )

    assert "generativelanguage.googleapis.com" in post.call_args.kwargs["url"]
    assert response.choices[0].message.content == "hello"


def test_openai_model_without_a_provider_still_routes_to_openai():
    from openai import OpenAI

    client = OpenAI(api_key="fake-key")
    raw_response = client.chat.completions.with_raw_response
    with patch.object(raw_response, "create") as mock_create, contextlib.suppress(Exception):
        litellm.completion(
            model="gpt-4o",
            messages=[{"role": "user", "content": "hello"}],
            client=client,
        )

    mock_create.assert_called()


def _openai_chat_create_kwargs(client, **completion_kwargs):
    with patch.object(client.chat.completions.with_raw_response, "create") as mock_client:
        with contextlib.suppress(Exception):
            litellm.completion(
                messages=[{"role": "system", "content": "sys"}, {"role": "user", "content": "hi"}],
                cache_control_injection_points=[{"location": "message", "role": "system"}],
                client=client,
                **completion_kwargs,
            )

        mock_client.assert_called_once()
        return mock_client.call_args.kwargs


@pytest.fixture
def _no_openai_api_base_override(monkeypatch):
    monkeypatch.delenv("OPENAI_BASE_URL", raising=False)
    monkeypatch.delenv("OPENAI_API_BASE", raising=False)
    monkeypatch.setattr(litellm, "api_base", None)


@pytest.mark.usefixtures("_no_openai_api_base_override")
def test_completion_custom_api_base_sends_no_prompt_cache_breakpoint_for_gpt_5_6():
    from openai import OpenAI

    client = OpenAI(api_key="fake-api-key", base_url="http://127.0.0.1:9/v1")
    request_body = _openai_chat_create_kwargs(client, model="gpt-5.6", api_base="http://127.0.0.1:9/v1")

    assert request_body["messages"][0] == {"role": "system", "content": "sys", "cache_control": {"type": "ephemeral"}}
    assert "prompt_cache_breakpoint" not in json.dumps(request_body["messages"])
    assert "prompt_cache_options" not in json.dumps(request_body)


@pytest.mark.usefixtures("_no_openai_api_base_override")
def test_completion_custom_base_url_sends_no_prompt_cache_breakpoint_for_gpt_5_6():
    from openai import OpenAI

    client = OpenAI(api_key="fake-api-key", base_url="http://127.0.0.1:9/v1")
    request_body = _openai_chat_create_kwargs(client, model="gpt-5.6", base_url="http://127.0.0.1:9/v1")

    assert request_body["messages"][0] == {"role": "system", "content": "sys", "cache_control": {"type": "ephemeral"}}
    assert "prompt_cache_breakpoint" not in json.dumps(request_body["messages"])
    assert "prompt_cache_options" not in json.dumps(request_body)


@pytest.mark.asyncio
@pytest.mark.usefixtures("_no_openai_api_base_override")
async def test_acompletion_custom_base_url_sends_no_prompt_cache_breakpoint_for_gpt_5_6():
    from openai import AsyncOpenAI

    client = AsyncOpenAI(api_key="fake-api-key", base_url="http://127.0.0.1:9/v1")
    with patch.object(client.chat.completions.with_raw_response, "create") as mock_create:
        with contextlib.suppress(Exception):
            await litellm.acompletion(
                model="gpt-5.6",
                messages=[{"role": "system", "content": "sys"}, {"role": "user", "content": "hi"}],
                cache_control_injection_points=[{"location": "message", "role": "system"}],
                client=client,
                base_url="http://127.0.0.1:9/v1",
            )

        mock_create.assert_called_once()
        request_body = mock_create.call_args.kwargs

    assert request_body["messages"][0] == {"role": "system", "content": "sys", "cache_control": {"type": "ephemeral"}}
    assert "prompt_cache_breakpoint" not in json.dumps(request_body["messages"])
    assert "prompt_cache_options" not in json.dumps(request_body)


@pytest.mark.usefixtures("_no_openai_api_base_override")
def test_completion_default_api_base_sends_prompt_cache_breakpoint_for_gpt_5_6():
    from openai import OpenAI

    client = OpenAI(api_key="fake-api-key")
    request_body = _openai_chat_create_kwargs(client, model="gpt-5.6")

    assert request_body["messages"][0]["content"] == [
        {"type": "text", "text": "sys", "prompt_cache_breakpoint": {"mode": "explicit"}}
    ]
    assert request_body["extra_body"]["prompt_cache_options"] == {"mode": "explicit"}


_SUBSCRIPTION_OAUTH_CREDENTIAL = "Bearer sk-ant-oat01-fake-subscription-token-for-testing-0123456789"


def _scoped_headers_for_oauth_request():
    from litellm.types.utils import ProviderSpecificHeader

    return [
        ProviderSpecificHeader(
            custom_llm_provider="anthropic,bedrock,vertex_ai",
            extra_headers={"anthropic-version": "2023-06-01"},
        ),
        ProviderSpecificHeader(
            custom_llm_provider="anthropic",
            extra_headers={"authorization": _SUBSCRIPTION_OAUTH_CREDENTIAL},
        ),
    ]


def _run_anthropic_hop_with_shared_headers(shared_headers):
    litellm.completion(
        model="anthropic/claude-3-5-sonnet-20240620",
        messages=[{"role": "user", "content": "Say OK"}],
        extra_headers=shared_headers,
        provider_specific_header=_scoped_headers_for_oauth_request(),
        api_key="sk-fake-anthropic-key",
        mock_response="OK",
    )


def test_completion_does_not_mutate_caller_supplied_headers():
    shared_headers = {"x-tenant": "acme"}

    _run_anthropic_hop_with_shared_headers(shared_headers)

    assert shared_headers == {"x-tenant": "acme"}


def test_anthropic_oauth_credential_does_not_persist_into_next_provider_hop():
    shared_headers = {"x-tenant": "acme"}

    _run_anthropic_hop_with_shared_headers(shared_headers)

    leaked = [name for name, value in shared_headers.items() if value == _SUBSCRIPTION_OAUTH_CREDENTIAL]
    assert leaked == []
    assert "anthropic-version" not in shared_headers


STREAM_COST_MODEL = "gpt-4o"
STREAMED_USAGE = {"prompt_tokens": 137, "completion_tokens": 42, "total_tokens": 179}


def _text_chunk(content, finish_reason=None, usage=None):
    chunk = {
        "id": "chatcmpl-stream-cost",
        "object": "chat.completion.chunk",
        "created": 1700000000,
        "model": STREAM_COST_MODEL,
        "choices": [
            {
                "index": 0,
                "delta": {"role": "assistant", "content": content},
                "finish_reason": finish_reason,
            }
        ],
    }
    if usage is not None:
        chunk["usage"] = usage
    return chunk


def _priced_at(prompt_tokens, completion_tokens):
    prices = litellm.model_cost[STREAM_COST_MODEL]
    return (
        prompt_tokens * prices["input_cost_per_token"]
        + completion_tokens * prices["output_cost_per_token"]
    )


@pytest.fixture
def local_cost_map(monkeypatch):
    """The prices these tests assert are the checked-in ones. Setting the environment
    variable alone does not reload the map, so pin the map itself.

    Prices are read through two separate lru_caches, so pinning ``model_cost`` is not
    enough on its own: an entry warmed against the network-fetched map keeps its old
    prices and billing reads those while the assertions read the pinned map.
    ``_invalidate_model_cost_lowercase_map`` clears both caches, where
    ``get_model_info.cache_clear`` reaches only one. Invalidate on the way in and out
    so entries never leak across tests in either direction."""
    from litellm.utils import _invalidate_model_cost_lowercase_map

    monkeypatch.setenv("LITELLM_LOCAL_MODEL_COST_MAP", "True")
    monkeypatch.setattr(litellm, "model_cost", litellm.get_model_cost_map(url=""))
    _invalidate_model_cost_lowercase_map()
    yield
    _invalidate_model_cost_lowercase_map()


def test_a_streamed_response_bills_the_usage_the_provider_reported(local_cost_map):
    rebuilt = litellm.stream_chunk_builder(
        chunks=[
            _text_chunk("Hello"),
            _text_chunk(" there"),
            _text_chunk(None, finish_reason="stop", usage=STREAMED_USAGE),
        ],
        messages=[{"role": "user", "content": "hi"}],
    )

    assert rebuilt.choices[0].message.content == "Hello there"
    assert rebuilt.usage.prompt_tokens == STREAMED_USAGE["prompt_tokens"]
    assert rebuilt.usage.completion_tokens == STREAMED_USAGE["completion_tokens"]

    cost = litellm.completion_cost(completion_response=rebuilt, model=STREAM_COST_MODEL)

    assert cost == pytest.approx(_priced_at(137, 42))


def test_streaming_and_not_streaming_bill_the_same_usage_the_same(local_cost_map):
    rebuilt = litellm.stream_chunk_builder(
        chunks=[
            _text_chunk("Hello"),
            _text_chunk(" there"),
            _text_chunk(None, finish_reason="stop", usage=STREAMED_USAGE),
        ],
        messages=[{"role": "user", "content": "hi"}],
    )
    whole = litellm.ModelResponse(
        id="chatcmpl-stream-cost",
        model=STREAM_COST_MODEL,
        object="chat.completion",
        created=1700000000,
        choices=[
            {
                "index": 0,
                "message": {"role": "assistant", "content": "Hello there"},
                "finish_reason": "stop",
            }
        ],
        usage=STREAMED_USAGE,
    )

    assert litellm.completion_cost(
        completion_response=rebuilt, model=STREAM_COST_MODEL
    ) == pytest.approx(litellm.completion_cost(completion_response=whole, model=STREAM_COST_MODEL))


def test_a_stream_that_reported_no_usage_is_still_billed(local_cost_map):
    rebuilt = litellm.stream_chunk_builder(
        chunks=[
            _text_chunk("Hello"),
            _text_chunk(" there"),
            _text_chunk(None, finish_reason="stop"),
        ],
        messages=[{"role": "user", "content": "hi"}],
    )

    assert rebuilt.usage.prompt_tokens > 0
    assert rebuilt.usage.completion_tokens > 0

    cost = litellm.completion_cost(completion_response=rebuilt, model=STREAM_COST_MODEL)

    assert cost > 0
    assert cost == pytest.approx(
        _priced_at(rebuilt.usage.prompt_tokens, rebuilt.usage.completion_tokens)
    )


@pytest.mark.asyncio
async def test_acompletion_resolves_provider_from_api_base():
    response = await litellm.acompletion(
        model="deepseek-chat",
        api_base="https://api.deepseek.com/v1",
        api_key="fake-key",
        messages=[{"role": "user", "content": "hi"}],
        mock_response="resolved",
    )

    assert response.choices[0].message.content == "resolved"


@dataclass(frozen=True, slots=True)
class _RecordedSpeechSuccess:
    call_type: str | None
    spend_metadata: Mapping[str, object]
    response_cost: float | None
    logged_response_cost: float | None


def _record_speech_success(payload: dict[str, object]) -> _RecordedSpeechSuccess:
    call_type: Final = payload.get("call_type")
    response_cost: Final = payload.get("response_cost")
    logging_payload: Final = payload.get("standard_logging_object")
    logged_cost: Final = logging_payload.get("response_cost") if isinstance(logging_payload, dict) else None
    return _RecordedSpeechSuccess(
        call_type=call_type if isinstance(call_type, str) else None,
        spend_metadata=get_litellm_metadata_from_kwargs(payload),
        response_cost=response_cost if isinstance(response_cost, float) else None,
        logged_response_cost=logged_cost if isinstance(logged_cost, float) else None,
    )


class _SuccessEventRecorder(CustomLogger):
    def __init__(self) -> None:
        super().__init__()
        self.events: list[_RecordedSpeechSuccess] = []  # mutable-ok: test recorder of success-callback events

    async def async_log_success_event(
        self, kwargs: dict[str, object], response_obj: object, start_time: object, end_time: object
    ) -> None:
        self.events.append(_record_speech_success(kwargs))


async def _wait_for_success_event(recorder: _SuccessEventRecorder, call_type: str) -> _RecordedSpeechSuccess:
    for _ in range(100):
        if (event := next((e for e in recorder.events if e.call_type == call_type), None)) is not None:
            return event
        await asyncio.sleep(0.05)
    pytest.fail(f"no {call_type} success event; got {[e.call_type for e in recorder.events]}")


def _gemini_tts_generate_content_response() -> dict[str, object]:
    return {
        "candidates": [
            {
                "content": {
                    "parts": [
                        {
                            "inlineData": {
                                "mimeType": "audio/L16;codec=pcm;rate=24000",
                                "data": base64.b64encode(b"pcm-audio-bytes").decode(),
                            }
                        }
                    ],
                    "role": "model",
                },
                "finishReason": "STOP",
                "index": 0,
            }
        ],
        "usageMetadata": {
            "promptTokenCount": 5,
            "candidatesTokenCount": 60,
            "totalTokenCount": 65,
            "promptTokensDetails": [{"modality": "TEXT", "tokenCount": 5}],
            "candidatesTokensDetails": [{"modality": "AUDIO", "tokenCount": 60}],
        },
        "modelVersion": "gemini-2.5-flash-preview-tts",
    }


@pytest.mark.asyncio
async def test_aspeech_gemini_bridge_keeps_proxy_metadata_for_spend_tracking(
    respx_mock: respx.MockRouter, monkeypatch: pytest.MonkeyPatch
) -> None:
    monkeypatch.setattr(litellm, "disable_aiohttp_transport", True)
    monkeypatch.delenv("GEMINI_API_KEY", raising=False)
    monkeypatch.delenv("GOOGLE_API_KEY", raising=False)
    recorder: Final = _SuccessEventRecorder()
    monkeypatch.setattr(litellm, "callbacks", [recorder])
    mock_route: Final = respx_mock.post(
        url__regex=r"https://generativelanguage\.googleapis\.com/v1beta/models/gemini-2\.5-flash-preview-tts:generateContent.*"
    ).mock(return_value=httpx.Response(200, json=_gemini_tts_generate_content_response()))

    await litellm.aspeech(
        model="gemini/gemini-2.5-flash-preview-tts",
        input="spend tracking check",
        voice="Kore",
        api_key="fake-gemini-key",
        metadata={"user_api_key": "hashed-virtual-key", "user_api_key_user_id": "user-1"},
    )

    assert mock_route.called
    assert mock_route.calls.last.request.headers["x-goog-api-key"] == "fake-gemini-key"
    speech_event: Final = await _wait_for_success_event(recorder, call_type="aspeech")
    assert speech_event.spend_metadata["user_api_key"] == "hashed-virtual-key"
    assert speech_event.spend_metadata["user_api_key_user_id"] == "user-1"
    expected_prompt_cost, expected_completion_cost = litellm.cost_per_token(
        model="gemini/gemini-2.5-flash-preview-tts",
        usage_object=Usage(prompt_tokens=5, completion_tokens=60, total_tokens=65),
    )
    expected_cost: Final = expected_prompt_cost + expected_completion_cost
    assert expected_cost > 0
    assert speech_event.response_cost == pytest.approx(expected_cost)
    assert speech_event.logged_response_cost == pytest.approx(expected_cost)


def _stream_builder_text_chunk(model: str, content: str, finish_reason: str | None = None) -> ModelResponseStream:
    return ModelResponseStream(
        id="chatcmpl-cost",
        created=1724900000,
        model=model,
        object="chat.completion.chunk",
        choices=[StreamingChoices(finish_reason=finish_reason, index=0, delta=Delta(content=content, role="assistant"))],
    )


def test_stream_chunk_builder_sets_hidden_response_cost_for_known_model():
    chunks: Final = [
        _stream_builder_text_chunk("gpt-4o", "Hello "),
        _stream_builder_text_chunk("gpt-4o", "world.", finish_reason="stop"),
    ]

    response: Final = litellm.stream_chunk_builder(chunks=chunks, messages=[{"role": "user", "content": "hi"}])

    assert response is not None
    prompt_cost, completion_cost = litellm.cost_per_token(model="gpt-4o", usage_object=response.usage)
    expected_cost: Final = prompt_cost + completion_cost
    assert expected_cost > 0
    assert response._hidden_params["response_cost"] == pytest.approx(expected_cost)


def test_stream_chunk_builder_unknown_model_leaves_response_cost_unset():
    chunks: Final = [
        _stream_builder_text_chunk("totally-unknown-model-xyz", "Hello "),
        _stream_builder_text_chunk("totally-unknown-model-xyz", "world.", finish_reason="stop"),
    ]

    response: Final = litellm.stream_chunk_builder(chunks=chunks, messages=[{"role": "user", "content": "hi"}])

    assert response is not None
    assert response._hidden_params.get("response_cost") is None
    assert response.choices[0].message.content == "Hello world."


def test_stream_chunk_builder_prices_proxy_alias_via_model_map():
    chunks: Final = [
        _stream_builder_text_chunk("claude-opus-5", "Hello "),
        _stream_builder_text_chunk("claude-opus-5", "world.", finish_reason="stop"),
    ]
    for chunk in chunks:
        chunk._hidden_params = {"custom_llm_provider": "openai"}

    response: Final = litellm.stream_chunk_builder(chunks=chunks, messages=[{"role": "user", "content": "hi"}])

    assert response is not None
    assert response._hidden_params["custom_llm_provider"] == "openai"
    prompt_cost, completion_cost = litellm.cost_per_token(model="claude-opus-5", usage_object=response.usage)
    expected_cost: Final = prompt_cost + completion_cost
    assert expected_cost > 0
    assert response._hidden_params["response_cost"] == pytest.approx(expected_cost)


def _stream_builder_logging_obj(model: str = "gpt-4o", custom_llm_provider: str = "openai") -> LiteLLMLogging:
    logging_obj: Final = LiteLLMLogging(
        model=model,
        messages=[{"role": "user", "content": "hi"}],
        stream=True,
        call_type="completion",
        start_time=datetime.now(),
        litellm_call_id="test-call-id",
        function_id="test-function-id",
    )
    logging_obj.update_environment_variables(
        model=model,
        user=None,
        optional_params={},
        litellm_params={"custom_llm_provider": custom_llm_provider},
        custom_llm_provider=custom_llm_provider,
    )
    return logging_obj


def test_stream_chunk_builder_stamps_streaming_usage_cost_by_default(monkeypatch: pytest.MonkeyPatch):
    monkeypatch.setattr(litellm, "include_cost_in_streaming_usage", False)
    chunks: Final = [
        _stream_builder_text_chunk("gpt-4o", "Hello "),
        _stream_builder_text_chunk("gpt-4o", "world.", finish_reason="stop"),
    ]

    response: Final = litellm.stream_chunk_builder(
        chunks=chunks, messages=[{"role": "user", "content": "hi"}], logging_obj=_stream_builder_logging_obj()
    )

    assert response is not None
    usage_cost: Final = getattr(response.usage, "cost", None)
    assert usage_cost is not None
    assert usage_cost > 0
    assert response._hidden_params["response_cost"] == pytest.approx(usage_cost)


def test_stream_chunk_builder_skips_stamp_when_cost_is_unpriceable():
    import time as time_module

    from litellm.litellm_core_utils.litellm_logging import Logging as LiteLLMLogging

    logging_obj: Final = LiteLLMLogging(
        model="us.anthropic.claude-opus-5",
        messages=[{"role": "user", "content": "hi"}],
        stream=True,
        call_type="completion",
        start_time=time_module.time(),
        litellm_call_id="stream-builder-alias-unpriceable",
        function_id="1",
    )
    logging_obj.model_call_details["custom_llm_provider"] = "bedrock"
    logging_obj.optional_params = {}
    usage_chunk: Final = _stream_builder_text_chunk("bedrock-claude-opus-5", "")
    usage_chunk.usage = Usage(prompt_tokens=40, completion_tokens=5, total_tokens=45)
    chunks: Final = [
        _stream_builder_text_chunk("bedrock-claude-opus-5", "Hello ", finish_reason="stop"),
        usage_chunk,
    ]

    response: Final = litellm.stream_chunk_builder(
        chunks=chunks, messages=[{"role": "user", "content": "hi"}], logging_obj=logging_obj
    )

    assert response is not None
    assert getattr(response.usage, "cost", None) is None
    assert response._hidden_params.get("response_cost") is None


def test_stream_chunk_builder_keeps_provider_reported_usage_cost():
    usage_chunk: Final = _stream_builder_text_chunk("gpt-4o", "")
    usage_chunk.usage = Usage(prompt_tokens=10, completion_tokens=5, total_tokens=15, cost=0.5)
    chunks: Final = [
        _stream_builder_text_chunk("gpt-4o", "Hello "),
        _stream_builder_text_chunk("gpt-4o", "world.", finish_reason="stop"),
        usage_chunk,
    ]

    response: Final = litellm.stream_chunk_builder(
        chunks=chunks, messages=[{"role": "user", "content": "hi"}], logging_obj=_stream_builder_logging_obj()
    )

    assert response is not None
    assert getattr(response.usage, "cost", None) == pytest.approx(0.5)
    assert response._hidden_params["response_cost"] == pytest.approx(0.5)


def test_stream_chunk_builder_prices_alias_from_openai_sdk_usage_chunk():
    from openai.types.completion_usage import CompletionUsage

    usage_chunk: Final = _stream_builder_text_chunk("mantle-claude", "")
    usage_chunk.usage = CompletionUsage(prompt_tokens=20, completion_tokens=60, total_tokens=80, cost=0.000704)
    assert type(usage_chunk.usage) is CompletionUsage
    chunks: Final = [
        _stream_builder_text_chunk("mantle-claude", "Hello "),
        _stream_builder_text_chunk("mantle-claude", "world.", finish_reason="stop"),
        usage_chunk,
    ]

    response: Final = litellm.stream_chunk_builder(chunks=chunks, messages=[{"role": "user", "content": "hi"}])

    assert response is not None
    assert response.usage.prompt_tokens == 20
    assert response.usage.completion_tokens == 60
    assert getattr(response.usage, "cost", None) == pytest.approx(0.000704)
    assert response._hidden_params["response_cost"] == pytest.approx(0.000704)


def test_stream_chunk_builder_leaves_xai_reported_cost_to_the_calculator(monkeypatch: pytest.MonkeyPatch):
    monkeypatch.setattr(litellm, "cost_margin_config", {"xai": 0.5})
    usage_chunk: Final = _stream_builder_text_chunk("grok-4", "")
    usage_chunk.usage = Usage(prompt_tokens=5, completion_tokens=2, total_tokens=7, cost=0.42)
    chunks: Final = [
        _stream_builder_text_chunk("grok-4", "Hello "),
        _stream_builder_text_chunk("grok-4", "world.", finish_reason="stop"),
        usage_chunk,
    ]
    logging_obj: Final = _stream_builder_logging_obj(model="grok-4", custom_llm_provider="xai")

    response: Final = litellm.stream_chunk_builder(
        chunks=chunks, messages=[{"role": "user", "content": "hi"}], logging_obj=logging_obj
    )

    assert response is not None
    assert getattr(response.usage, "cost", None) == pytest.approx(0.42)
    assert response._hidden_params.get("response_cost") is None
    assert logging_obj._response_cost_calculator(result=response) == pytest.approx(0.63)


def test_speech_mistral_dispatches_and_decodes_audio(respx_mock: respx.MockRouter, monkeypatch: pytest.MonkeyPatch):
    monkeypatch.setenv("MISTRAL_API_KEY", "sk-mistral-test")
    audio_bytes: Final = b"ID3-fake-mp3-bytes"
    mock_route: Final = respx_mock.post("https://api.mistral.ai/v1/audio/speech").mock(
        return_value=httpx.Response(200, json={"audio_data": base64.b64encode(audio_bytes).decode()})
    )

    response: Final = litellm.speech(
        model="mistral/voxtral-mini-tts-2603",
        input="hello from litellm",
        voice="en_paul_neutral",
        response_format="wav",
        speed=2,
        instructions="sound cheerful",
    )

    assert mock_route.called
    request_body: Final = json.loads(mock_route.calls.last.request.content)
    assert request_body == {
        "model": "voxtral-mini-tts-2603",
        "input": "hello from litellm",
        "voice_id": "en_paul_neutral",
        "response_format": "wav",
    }
    assert mock_route.calls.last.request.headers["authorization"] == "Bearer sk-mistral-test"
    assert response.content == audio_bytes


def test_speech_mistral_routes_to_configured_api_base(respx_mock: respx.MockRouter, monkeypatch: pytest.MonkeyPatch):
    monkeypatch.setenv("MISTRAL_API_KEY", "sk-mistral-test")
    audio_bytes: Final = b"ID3-gateway-bytes"
    gateway_route: Final = respx_mock.post("https://mistral.gateway.internal/v1/audio/speech").mock(
        return_value=httpx.Response(200, json={"audio_data": base64.b64encode(audio_bytes).decode()})
    )

    response: Final = litellm.speech(
        model="mistral/voxtral-mini-tts-2603",
        input="hello from litellm",
        voice="en_paul_neutral",
        api_base="https://mistral.gateway.internal",
    )

    assert gateway_route.called
    assert response.content == audio_bytes


FOUNDRY_HOST: Final = "https://my-project.services.ai.azure.com"


def test_azure_ai_transcription_on_a_foundry_host_uses_the_azure_openai_deployment_route(
    respx_mock: respx.MockRouter,
):
    route: Final = respx_mock.post(
        url__regex=r"https://my-project\.services\.ai\.azure\.com/openai/deployments/whisper-1/audio/transcriptions\?api-version=.+"
    ).mock(return_value=httpx.Response(200, json={"text": "hello"}))

    response: Final = litellm.transcription(
        model="azure_ai/whisper-1",
        file=("tone.wav", b"RIFF\x00\x00\x00\x00WAVE", "audio/wav"),
        api_base=FOUNDRY_HOST,
        api_key="fake-key",
    )

    assert route.called
    assert response.text == "hello"


def test_azure_ai_speech_on_a_foundry_host_uses_the_azure_openai_deployment_route(
    respx_mock: respx.MockRouter,
):
    route: Final = respx_mock.post(
        url__regex=r"https://my-project\.services\.ai\.azure\.com/openai/deployments/tts-1/audio/speech\?api-version=.+"
    ).mock(return_value=httpx.Response(200, content=b"mp3-bytes"))

    response: Final = litellm.speech(
        model="azure_ai/tts-1",
        input="hello",
        voice="alloy",
        api_base=FOUNDRY_HOST,
        api_key="fake-key",
    )

    assert route.called
    assert response.content == b"mp3-bytes"


FORWARDED_CLIENT_HEADERS: Final = {"x-forwarded-for": "10.0.0.1", "x-amzn-trace-id": "Root=1-lit7694"}


def _chat_completion_json() -> Mapping[str, object]:
    return {
        "id": "chatcmpl-lit7694",
        "object": "chat.completion",
        "created": 1,
        "model": "gpt-5.4",
        "choices": [{"index": 0, "message": {"role": "assistant", "content": "ok"}, "finish_reason": "stop"}],
        "usage": {"prompt_tokens": 1, "completion_tokens": 1, "total_tokens": 2},
    }


def _chat_completion_sse() -> bytes:
    chunk: Final = {
        "id": "chatcmpl-lit7694",
        "object": "chat.completion.chunk",
        "created": 1,
        "model": "gpt-5.4",
        "choices": [{"index": 0, "delta": {"role": "assistant", "content": "ok"}, "finish_reason": "stop"}],
    }
    return f"data: {json.dumps(chunk)}\n\ndata: [DONE]\n\n".encode()


@pytest.mark.parametrize("stream", [False, True])
def test_bridged_responses_with_openai_http_handler_keeps_forwarded_headers_out_of_the_body(
    respx_mock: respx.MockRouter, monkeypatch: pytest.MonkeyPatch, stream: bool
):
    monkeypatch.setenv("EXPERIMENTAL_OPENAI_BASE_LLM_HTTP_HANDLER", "true")
    route: Final = respx_mock.post("https://api.openai.com/v1/chat/completions").mock(
        return_value=httpx.Response(200, content=_chat_completion_sse(), headers={"content-type": "text/event-stream"})
        if stream
        else httpx.Response(200, json=_chat_completion_json())
    )

    response: Final = litellm.responses(
        model="openai/gpt-5.4",
        input="Reply with the single word ok",
        stream=stream,
        use_chat_completions_api=True,
        headers=dict(FORWARDED_CLIENT_HEADERS),
        api_key="sk-test",
    )
    if stream:
        list(response)

    assert route.called
    request: Final = route.calls.last.request
    body: Final = json.loads(request.content)
    assert "extra_headers" not in body
    assert body["model"] == "gpt-5.4"
    assert {k: request.headers[k] for k in FORWARDED_CLIENT_HEADERS} == FORWARDED_CLIENT_HEADERS


@pytest.mark.parametrize("http2_on", [True, False])
def test_aiohttp_openai_warns_only_when_http2_enabled(
    monkeypatch: pytest.MonkeyPatch, caplog: pytest.LogCaptureFixture, http2_on: bool
):
    from litellm.main import base_llm_aiohttp_handler

    monkeypatch.setattr(litellm, "http2", http2_on)
    monkeypatch.delenv("LITELLM_HTTP2", raising=False)

    handler_completion: Final = MagicMock(return_value=MagicMock())
    monkeypatch.setattr(base_llm_aiohttp_handler, "completion", handler_completion)

    with caplog.at_level(logging.WARNING, logger="LiteLLM"):
        litellm.completion(
            model="aiohttp_openai/gpt-4o",
            messages=[{"role": "user", "content": "hi"}],
            api_key="sk-test",
        )

    assert handler_completion.called
    warned: Final = "aiohttp_openai/ always uses aiohttp" in caplog.text
    assert warned is http2_on


@pytest.mark.parametrize("tool_choice", [{"type": "bogus"}, {"name": "lookup_fruit"}, {"type": "file_search"}])
def test_completion_rejects_untranslatable_tool_choice_with_a_400(tool_choice):
    with pytest.raises(litellm.BadRequestError) as exc_info:
        litellm.completion(
            model="anthropic/claude-haiku-4-5",
            messages=[{"role": "user", "content": "Which fruit is red?"}],
            tools=[{"type": "function", "function": {"name": "lookup_fruit", "parameters": {"type": "object"}}}],
            tool_choice=tool_choice,
            api_key="sk-unused",
        )
    assert exc_info.value.status_code == 400
    assert f"tool_choice={tool_choice}" in str(exc_info.value)