mirror of
https://github.com/BerriAI/litellm.git
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287 lines
11 KiB
Python
287 lines
11 KiB
Python
import inspect
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from collections.abc import Awaitable, Callable, Mapping
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from typing import Final, cast # noqa: TID251 # narrows legacy callable signatures for inspect
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import pytest
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import litellm
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from litellm.llms.anthropic.experimental_pass_through.messages import handler as python_messages
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from litellm.messages.dispatch import (
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_ADISPATCH, # pyright: ignore[reportPrivateUsage] # tests configured dispatch
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_DISPATCH, # pyright: ignore[reportPrivateUsage] # tests configured dispatch
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)
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from litellm.rust_bridge import catalog
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from litellm.rust_bridge.bindings import NativeBinding
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from litellm.rust_bridge.catalog import Route, Rule, Rules
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from litellm.rust_bridge.configuration import Rollout
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from litellm.rust_bridge.messages.entrypoints import (
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NATIVE_AMESSAGES,
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NATIVE_MESSAGES,
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LiteLLMMessagesRequest,
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NativeAmessages,
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NativeMessages,
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)
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from litellm.types.llms.anthropic_messages.anthropic_response import AnthropicMessagesResponse
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MESSAGES: Final = [{"role": "user", "content": "hi"}]
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PYTHON_RULES: Final[Rules] = ()
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RUST_RULES: Final[Rules] = (Rule(Route.MESSAGES, Rollout.RUST_REQUIRED),)
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def messages_binding(native: NativeMessages | None) -> NativeBinding[NativeMessages]:
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binding: Final[NativeBinding[NativeMessages]] = NativeBinding(
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"anthropic_messages_handler", validate=lambda _: None
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)
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binding.override(native)
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return binding
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def amessages_binding(native: NativeAmessages | None) -> NativeBinding[NativeAmessages]:
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binding: Final[NativeBinding[NativeAmessages]] = NativeBinding("anthropic_messages", validate=lambda _: None)
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binding.override(native)
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return binding
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def response(model: str = "claude-sonnet-4-5") -> AnthropicMessagesResponse:
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return AnthropicMessagesResponse(id="msg_test", type="message", role="assistant", model=model, content=[])
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def test_public_signature_is_the_legacy_signature() -> None:
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public_messages: Final = cast(Callable[..., object], litellm.anthropic_messages_handler)
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legacy_messages: Final = cast(Callable[..., object], python_messages.anthropic_messages_handler)
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public_amessages: Final = cast(Callable[..., object], litellm.anthropic_messages)
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legacy_amessages: Final = cast(Callable[..., object], python_messages.anthropic_messages)
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assert inspect.signature(public_messages) == inspect.signature(legacy_messages)
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assert inspect.signature(public_amessages) == inspect.signature(legacy_amessages)
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def test_python_route_forwards_original_call_shape() -> None:
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metadata: Final = {"user_id": "u"}
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args: Final[tuple[object, ...]] = (16, MESSAGES, "claude-sonnet-4-5")
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kwargs: Final[Mapping[str, object]] = {"temperature": 0.1, "litellm_metadata": metadata}
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captured: Final[list[tuple[tuple[object, ...], Mapping[str, object]]]] = []
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expected: Final = response()
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def python(*call_args: object, **call_kwargs: object) -> AnthropicMessagesResponse: # kwargs-ok: records call shape
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captured.append((call_args, call_kwargs))
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return expected
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def native(
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request: LiteLLMMessagesRequest,
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args: tuple[object, ...],
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kwargs: Mapping[str, object],
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) -> AnthropicMessagesResponse:
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pytest.fail("Python-only dispatch must not call native")
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result: Final = _DISPATCH.run(
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args,
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kwargs,
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python=python,
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binding=messages_binding(native),
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native=lambda hook, request, call_args, call_kwargs: hook(request, call_args, call_kwargs),
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rules=PYTHON_RULES,
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)
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assert result is expected
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call_args, call_kwargs = captured[0]
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assert call_args == args
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assert call_args[1] is MESSAGES
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assert call_kwargs == kwargs
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assert call_kwargs["litellm_metadata"] is metadata
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assert kwargs == {"temperature": 0.1, "litellm_metadata": metadata}
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@pytest.mark.asyncio
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async def test_async_python_route_forwards_original_call_shape() -> None:
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metadata: Final = {"user_id": "u"}
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args: Final[tuple[object, ...]] = (16, MESSAGES, "claude-sonnet-4-5")
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kwargs: Final[Mapping[str, object]] = {"temperature": 0.1, "litellm_metadata": metadata}
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captured: Final[list[tuple[tuple[object, ...], Mapping[str, object]]]] = []
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expected: Final = response()
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async def python(
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*call_args: object, **call_kwargs: object # kwargs-ok: records call shape
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) -> AnthropicMessagesResponse:
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captured.append((call_args, call_kwargs))
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return expected
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async def native(
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request: LiteLLMMessagesRequest,
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args: tuple[object, ...],
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kwargs: Mapping[str, object],
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) -> AnthropicMessagesResponse:
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pytest.fail("Python-only dispatch must not call native")
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result: Final = await _ADISPATCH.arun(
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args,
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kwargs,
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python=python,
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binding=amessages_binding(native),
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native=lambda hook, request, call_args, call_kwargs: hook(request, call_args, call_kwargs),
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rules=PYTHON_RULES,
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)
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assert result is expected
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call_args, call_kwargs = captured[0]
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assert call_args == args
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assert call_args[1] is MESSAGES
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assert call_kwargs == kwargs
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assert call_kwargs["litellm_metadata"] is metadata
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assert kwargs == {"temperature": 0.1, "litellm_metadata": metadata}
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def test_native_receives_normalized_request_and_original_call_shape() -> None:
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metadata: Final = {"user_id": "u"}
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args: Final[tuple[object, ...]] = (16, MESSAGES, "anthropic/claude-sonnet-4-5")
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kwargs: Final[Mapping[str, object]] = {
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"stream": True,
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"api_key": "sk-test",
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"api_base": "https://example.invalid",
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"custom_llm_provider": "anthropic",
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"litellm_metadata": metadata,
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}
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captured: Final[list[tuple[LiteLLMMessagesRequest, tuple[object, ...], Mapping[str, object]]]] = []
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expected: Final = response("anthropic/claude-sonnet-4-5")
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def python(*call_args: object, **call_kwargs: object) -> AnthropicMessagesResponse: # kwargs-ok: rejected fallback
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pytest.fail("Required Rust dispatch must not call Python")
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def native(
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request: LiteLLMMessagesRequest,
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args: tuple[object, ...],
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kwargs: Mapping[str, object],
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) -> AnthropicMessagesResponse:
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captured.append((request, args, kwargs))
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return expected
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result: Final = _DISPATCH.run(
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args,
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kwargs,
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python=python,
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binding=messages_binding(native),
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native=lambda hook, request, call_args, call_kwargs: hook(request, call_args, call_kwargs),
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rules=RUST_RULES,
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)
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assert result is expected
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request, call_args, call_kwargs = captured[0]
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assert request.model == "anthropic/claude-sonnet-4-5"
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assert request.messages is MESSAGES
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assert request.max_tokens == 16
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assert request.stream is True
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assert request.api_key == "sk-test"
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assert request.api_base == "https://example.invalid"
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assert request.custom_llm_provider == "anthropic"
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assert request.kwargs == {"litellm_metadata": metadata}
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assert request.kwargs["litellm_metadata"] is metadata
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assert call_args == args
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assert call_args[1] is MESSAGES
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assert call_kwargs == kwargs
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assert call_kwargs["litellm_metadata"] is metadata
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def test_internal_async_marker_bypasses_native() -> None:
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args: Final[tuple[object, ...]] = (16, MESSAGES, "claude-sonnet-4-5")
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kwargs: Final[Mapping[str, object]] = {"is_async": True}
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captured: Final[list[tuple[tuple[object, ...], Mapping[str, object]]]] = []
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expected: Final = response()
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def python(*call_args: object, **call_kwargs: object) -> AnthropicMessagesResponse: # kwargs-ok: records call shape
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captured.append((call_args, call_kwargs))
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return expected
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def native(
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request: LiteLLMMessagesRequest,
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args: tuple[object, ...],
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kwargs: Mapping[str, object],
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) -> AnthropicMessagesResponse:
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pytest.fail("The async handler's inner sync call must stay on Python")
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result: Final = _DISPATCH.run(
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args,
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kwargs,
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python=python,
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binding=messages_binding(native),
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native=lambda hook, request, call_args, call_kwargs: hook(request, call_args, call_kwargs),
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rules=RUST_RULES,
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)
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assert result is expected
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assert captured == [(args, kwargs)]
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@pytest.mark.parametrize(
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("args", "kwargs"),
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(
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((16, MESSAGES, "claude-sonnet-4-5"), {"model": "duplicate"}),
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((), {}),
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),
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)
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def test_binding_errors_delegate_to_python(args: tuple[object, ...], kwargs: Mapping[str, object]) -> None:
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captured: Final[list[tuple[tuple[object, ...], Mapping[str, object]]]] = []
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expected: Final = response()
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def python(*call_args: object, **call_kwargs: object) -> AnthropicMessagesResponse: # kwargs-ok: records invalid call
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captured.append((call_args, call_kwargs))
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return expected
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def native(
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request: LiteLLMMessagesRequest,
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args: tuple[object, ...],
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kwargs: Mapping[str, object],
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) -> AnthropicMessagesResponse:
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pytest.fail("Binding failures must be delegated to Python")
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result: Final = _DISPATCH.run(
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args,
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kwargs,
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python=python,
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binding=messages_binding(native),
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native=lambda hook, request, call_args, call_kwargs: hook(request, call_args, call_kwargs),
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rules=RUST_RULES,
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)
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assert result is expected
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assert captured == [(args, kwargs)]
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def test_anthropic_create_routes_through_dispatch(monkeypatch: pytest.MonkeyPatch) -> None:
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captured: Final[list[LiteLLMMessagesRequest]] = []
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expected: Final = response()
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def native(
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request: LiteLLMMessagesRequest,
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args: tuple[object, ...],
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kwargs: Mapping[str, object],
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) -> AnthropicMessagesResponse:
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captured.append(request)
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return expected
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NATIVE_MESSAGES.override(native)
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monkeypatch.setattr(catalog, "RULES", RUST_RULES)
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public_create: Final = cast(Callable[..., AnthropicMessagesResponse], litellm.anthropic.create)
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try:
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result: Final = public_create(max_tokens=16, messages=MESSAGES, model="claude-sonnet-4-5")
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finally:
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NATIVE_MESSAGES.reset()
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assert result is expected
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assert [request.model for request in captured] == ["claude-sonnet-4-5"]
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@pytest.mark.asyncio
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async def test_anthropic_acreate_routes_through_dispatch(monkeypatch: pytest.MonkeyPatch) -> None:
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captured: Final[list[LiteLLMMessagesRequest]] = []
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expected: Final = response()
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async def native(
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request: LiteLLMMessagesRequest,
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args: tuple[object, ...],
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kwargs: Mapping[str, object],
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) -> AnthropicMessagesResponse:
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captured.append(request)
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return expected
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NATIVE_AMESSAGES.override(native)
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monkeypatch.setattr(catalog, "RULES", RUST_RULES)
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public_acreate: Final = cast(Callable[..., Awaitable[AnthropicMessagesResponse]], litellm.anthropic.acreate)
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try:
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result: Final = await public_acreate(max_tokens=16, messages=MESSAGES, model="claude-sonnet-4-5")
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finally:
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NATIVE_AMESSAGES.reset()
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assert result is expected
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assert [request.model for request in captured] == ["claude-sonnet-4-5"]
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