litellm/tests/test_litellm_rust/ocr/test_callbacks.py
yujonglee 347b642bdd
refactor(ocr): complete native lifecycle and preserve Azure auth (#40734)
* refactor(ocr): extract call completion boundary

* fix(ocr): release completion state after dispatch

* test(ocr): prove wrapper completion handoff

* test(ocr): narrow mapped failure assertion

* fix(ocr): preserve wrapper invocation kwargs

* fix(ocr): retain completion through finalization

* fix(ocr): make completion ownership explicit

* refactor(ocr): resolve logging executor explicitly

* fix(callbacks): preserve completion lifecycle behavior

* refactor(ocr): move public OCR into native lifecycle

* refactor(ocr): remove unused rust bridge capability

* wip

* wip

* refactor

* wip

* fix(ocr): preserve reducto native compatibility

* wip

* fix(ocr): document native callable casts

* perf(ocr): bound responses and reduce native scheduling overhead

* refactor(python-bridge): organize placeholder routes

* refactor test

* fix(ocr): normalize DeepSeek document content

* perf(ocr): skip unused callback work and benchmark callback overhead

* fix(ocr): align conversion contracts

* test(ocr): cover official provider response shapes

* fix(ocr): restore Python fallback and honor Rust opt-out

* fixes and refactor

* fix(ocr): preserve Azure Document Intelligence authentication

* fix(rust): enforce OCR response limits and lint contracts

* test(rust): align native OCR contract coverage

* test(ocr): isolate Azure auth precedence coverage
2026-09-12 11:56:49 -07:00

536 lines
20 KiB
Python

import asyncio
import copy
import queue
import threading
from typing import Final
import pytest
import litellm
from litellm.integrations.custom_logger import CustomLogger
from litellm.llms.base_llm.ocr.transformation import OCRResponse
from tests.test_litellm_rust.support.callback_recorder import RecordingLogger
from tests.test_litellm_rust.support.requests import (
OCR_DOCUMENT,
OCR_RESPONSE,
call_native_aocr,
call_native_ocr,
request_body,
request_headers,
)
from tests.test_litellm_rust.support.recording_server import RecordingServer, ResponseSpec
pytestmark = pytest.mark.requires_rust_extension
@pytest.fixture
def ocr_server(recording_server: RecordingServer) -> RecordingServer:
recording_server.default_response = ResponseSpec(body=OCR_RESPONSE)
return recording_server
def call_native_ocr_with_callbacks(server: RecordingServer, callbacks: list[CustomLogger], **kwargs: object):
return call_native_ocr(server, callbacks=callbacks, **kwargs)
async def call_native_aocr_with_callbacks(server: RecordingServer, callbacks: list[CustomLogger], **kwargs: object):
return await call_native_aocr(server, callbacks=callbacks, **kwargs)
def test_native_ocr_pre_call_callback_receives_transformed_provider_request(ocr_server: RecordingServer) -> None:
observations: Final = []
class Observe(CustomLogger):
def log_pre_api_call(self, model, messages, kwargs):
observations.append((model, copy.deepcopy(kwargs["additional_args"])))
call_native_ocr_with_callbacks(ocr_server, [Observe()], pages=[0])
assert len(observations) == 1
model, additional_args = observations[0]
assert model == "mistral-ocr-latest"
assert additional_args["api_base"] == f"{ocr_server.base_url}/v1/ocr"
assert additional_args["complete_input_dict"] == {
"model": "mistral-ocr-latest",
"document": OCR_DOCUMENT,
"pages": [0],
}
@pytest.mark.parametrize("raise_after_edit", [False, True], ids=["callback-returns", "callback-raises"])
def test_native_ocr_pre_call_body_edit_reaches_next_callback_and_provider(
ocr_server: RecordingServer, raise_after_edit: bool
) -> None:
observed: Final = []
class Edit(CustomLogger):
def log_pre_api_call(self, model, messages, kwargs):
request_body(kwargs)["include_image_base64"] = True
if raise_after_edit:
raise RuntimeError("pre-call callback failed")
class Observe(CustomLogger):
def log_pre_api_call(self, model, messages, kwargs):
observed.append(copy.deepcopy(request_body(kwargs)))
call_native_ocr_with_callbacks(ocr_server, [Edit(), Observe()], include_image_base64=False)
assert observed[0]["include_image_base64"] is True
assert ocr_server.requests[0].body["include_image_base64"] is True
def test_native_ocr_pre_call_header_edit_reaches_next_callback_and_provider(ocr_server: RecordingServer) -> None:
observed: Final = []
class Edit(CustomLogger):
def log_pre_api_call(self, model, messages, kwargs):
request_headers(kwargs)["x-audit-tag"] = "reviewed"
class Observe(CustomLogger):
def log_pre_api_call(self, model, messages, kwargs):
observed.append(dict(request_headers(kwargs)))
call_native_ocr_with_callbacks(ocr_server, [Edit(), Observe()])
assert observed[0]["x-audit-tag"] == "reviewed"
assert ocr_server.requests[0].headers["x-audit-tag"] == "reviewed"
def test_native_ocr_pre_call_header_rebinding_does_not_replace_execution_root(ocr_server: RecordingServer) -> None:
retained: Final = []
observed: Final = []
class RetainMutateAndRebind(CustomLogger):
def log_pre_api_call(self, model, messages, kwargs):
headers = request_headers(kwargs)
retained.append(headers)
kwargs["additional_args"]["headers"] = {"x-rebound": "not-sent"}
headers["x-retained"] = "sent"
class ObserveRebinding(CustomLogger):
def log_pre_api_call(self, model, messages, kwargs):
observed.append(dict(request_headers(kwargs)))
call_native_ocr_with_callbacks(ocr_server, [RetainMutateAndRebind(), ObserveRebinding()])
assert observed == [{"x-rebound": "not-sent"}]
assert retained[0]["x-retained"] == "sent"
assert ocr_server.requests[0].headers["x-retained"] == "sent"
assert "x-rebound" not in ocr_server.requests[0].headers
@pytest.mark.asyncio
@pytest.mark.parametrize("asynchronous", [False, True], ids=["sync", "async"])
async def test_native_ocr_pre_call_nested_document_edit_updates_caller_callback_and_provider_references(
ocr_server: RecordingServer, asynchronous: bool
) -> None:
original: Final = dict(OCR_DOCUMENT)
replacement_url: Final = "data:application/pdf;base64,ZGVm"
retained: Final = []
aliases: Final = []
class Retain(CustomLogger):
def log_pre_api_call(self, model, messages, kwargs):
aliases.append(request_body(kwargs)["document"] is original)
retained.append(request_body(kwargs)["document"])
class Edit(CustomLogger):
def log_pre_api_call(self, model, messages, kwargs):
original["document_url"] = replacement_url
arguments: Final = {
"model": "mistral/mistral-ocr-latest",
"document": original,
"api_key": "test-key",
"api_base": ocr_server.base_url,
"callbacks": [Retain(), Edit()],
}
response: Final = (
await call_native_aocr(ocr_server, **arguments)
if asynchronous
else call_native_ocr(ocr_server, **arguments)
)
assert aliases == [True]
assert retained[0]["document_url"] == replacement_url
assert original["document_url"] == replacement_url
assert ocr_server.requests[0].body["document"]["document_url"] == replacement_url
assert response.pages[0].markdown == "native OCR response"
def test_native_ocr_pre_call_document_replacement_does_not_mutate_original_document(
ocr_server: RecordingServer,
) -> None:
original: Final = dict(OCR_DOCUMENT)
replacement: Final = {"type": "document_url", "document_url": "data:application/pdf;base64,ZGVm"}
retained: Final = []
class RetainAndReplace(CustomLogger):
def log_pre_api_call(self, model, messages, kwargs):
body = request_body(kwargs)
retained.append(body["document"])
body["document"] = replacement
call_native_ocr(
ocr_server,
document=original,
callbacks=[RetainAndReplace()],
)
assert retained[0] is original
assert original["document_url"] == OCR_DOCUMENT["document_url"]
assert ocr_server.requests[0].body["document"] == replacement
def test_native_ocr_pre_call_body_rebinding_is_visible_to_callbacks_but_not_provider(
ocr_server: RecordingServer,
) -> None:
observed: Final = []
class Rebind(CustomLogger):
def log_pre_api_call(self, model, messages, kwargs):
kwargs["additional_args"]["complete_input_dict"] = {"replacement": True}
class Observe(CustomLogger):
def log_pre_api_call(self, model, messages, kwargs):
observed.append(request_body(kwargs))
call_native_ocr_with_callbacks(ocr_server, [Rebind(), Observe()])
assert observed == [{"replacement": True}]
assert ocr_server.requests[0].body == {"model": "mistral-ocr-latest", "document": OCR_DOCUMENT}
def test_native_ocr_callback_retained_body_observes_later_callback_mutation(ocr_server: RecordingServer) -> None:
queued: Final = []
class QueuePayload(CustomLogger):
def log_pre_api_call(self, model, messages, kwargs):
queued.append(request_body(kwargs))
class Edit(CustomLogger):
def log_pre_api_call(self, model, messages, kwargs):
request_body(kwargs)["queued-edit"] = True
call_native_ocr_with_callbacks(ocr_server, [QueuePayload(), Edit()])
assert queued[0]["queued-edit"] is True
def test_native_ocr_success_callback_receives_state_added_by_pre_call_callback(ocr_server: RecordingServer) -> None:
token: Final = object()
terminal_tokens: queue.SimpleQueue[object] = queue.SimpleQueue()
finished: Final = threading.Event()
class Stash(CustomLogger):
def log_pre_api_call(self, model, messages, kwargs):
kwargs["test-token"] = token
def log_success_event(self, kwargs, response_obj, start_time, end_time):
terminal_tokens.put(kwargs["test-token"])
finished.set()
call_native_ocr_with_callbacks(ocr_server, [Stash()])
assert finished.wait(10)
assert terminal_tokens.get_nowait() is token
@pytest.mark.asyncio
async def test_native_aocr_success_callback_receives_call_id_metadata_and_response(
ocr_server: RecordingServer,
) -> None:
recorder: Final = RecordingLogger()
await call_native_aocr_with_callbacks(
ocr_server,
[recorder],
litellm_call_id="ocr-success",
metadata={"source": "callback-test"},
)
events: Final = await recorder.wait_for_async("async_log_success_event")
assert len(events) == 1
assert events[0].call_type == "aocr"
assert events[0].kwargs["litellm_call_id"] == "ocr-success"
assert events[0].kwargs["litellm_params"]["metadata"]["source"] == "callback-test"
assert events[0].response.pages[0].markdown == "native OCR response"
@pytest.mark.asyncio
async def test_native_aocr_failure_callbacks_receive_call_type_error_and_no_response(
ocr_server: RecordingServer,
) -> None:
ocr_server.enqueue(ResponseSpec(body={"message": "provider unavailable"}, status=500))
observations: Final = []
class Observe(CustomLogger):
def log_failure_event(self, kwargs, response_obj, start_time, end_time):
observations.append(("sync", kwargs["call_type"], kwargs["exception"], response_obj))
async def async_log_failure_event(self, kwargs, response_obj, start_time, end_time):
observations.append(("async", kwargs["call_type"], kwargs["exception"], response_obj))
with pytest.raises(litellm.InternalServerError):
await call_native_aocr_with_callbacks(ocr_server, [Observe()])
assert [observation[0] for observation in observations] == ["sync", "async"]
assert all(observation[1] == "aocr" for observation in observations)
assert all(isinstance(observation[2], litellm.InternalServerError) for observation in observations)
assert all(observation[3] is None for observation in observations)
@pytest.mark.asyncio
async def test_native_aocr_pre_call_callback_runs_on_caller_loop_and_thread(ocr_server: RecordingServer) -> None:
caller_loop: Final = asyncio.get_running_loop()
caller_thread: Final = threading.current_thread()
recorder: Final = RecordingLogger()
await call_native_aocr_with_callbacks(ocr_server, [recorder])
events: Final = await recorder.wait_for_async("log_pre_api_call")
assert len(events) == 1
assert events[0].loop is caller_loop
assert events[0].thread is caller_thread
@pytest.mark.asyncio
async def test_native_aocr_failure_callbacks_receive_state_added_by_pre_call_callback(
ocr_server: RecordingServer,
) -> None:
ocr_server.enqueue(ResponseSpec(body={"message": "provider unavailable"}, status=500))
token: Final = object()
observed: Final = []
class TrackInFlightRequest(CustomLogger):
def log_pre_api_call(self, model, messages, kwargs):
kwargs["request-token"] = token
def log_failure_event(self, kwargs, response_obj, start_time, end_time):
observed.append(("sync", kwargs["request-token"]))
async def async_log_failure_event(self, kwargs, response_obj, start_time, end_time):
observed.append(("async", kwargs["request-token"]))
with pytest.raises(litellm.InternalServerError):
await call_native_aocr_with_callbacks(ocr_server, [TrackInFlightRequest()])
assert [event for event, _ in observed] == ["sync", "async"]
assert all(observed_token is token for _, observed_token in observed)
@pytest.mark.asyncio
async def test_native_aocr_callback_error_does_not_mask_provider_error_or_skip_later_failure_callbacks(
ocr_server: RecordingServer,
) -> None:
ocr_server.enqueue(ResponseSpec(body={"message": "provider unavailable"}, status=500))
recorder: Final = RecordingLogger()
class FailingCallback(CustomLogger):
def log_failure_event(self, kwargs, response_obj, start_time, end_time):
raise RuntimeError("failure callback failed")
async def async_log_failure_event(self, kwargs, response_obj, start_time, end_time):
raise RuntimeError("failure callback failed")
with pytest.raises(litellm.InternalServerError) as caught:
await call_native_aocr_with_callbacks(ocr_server, [FailingCallback(), recorder])
sync_events: Final = tuple(event for event in recorder.events if event.name == "log_failure_event")
async_events: Final = tuple(event for event in recorder.events if event.name == "async_log_failure_event")
assert len(sync_events) == 1
assert len(async_events) == 1
assert sync_events[0].kwargs["exception"] is caught.value
assert async_events[0].kwargs["exception"] is caught.value
assert "async_log_success_event" not in recorder.names
def test_native_ocr_dispatches_each_callback_phase_once_when_logger_is_registered_multiple_times(
ocr_server: RecordingServer,
) -> None:
recorder: Final = RecordingLogger()
call_native_ocr_with_callbacks(
ocr_server,
[recorder, recorder],
success_callback=[recorder],
failure_callback=[recorder],
)
recorder.wait_for("log_success_event")
assert recorder.names.count("log_pre_api_call") == 1
assert recorder.names.count("logging_hook") == 1
assert recorder.names.count("log_success_event") == 1
assert "log_failure_event" not in recorder.names
@pytest.mark.asyncio
@pytest.mark.parametrize("asynchronous", [False, True], ids=["sync", "async"])
async def test_native_azure_ocr_resolves_token_before_pre_call_on_caller_context(
ocr_server: RecordingServer,
isolated_azure_auth: None,
asynchronous: bool,
) -> None:
from contextvars import ContextVar
context: Final = ContextVar("azure-token-context", default="missing")
context.set("caller")
caller_thread: Final = threading.current_thread()
caller_loop: Final = asyncio.get_running_loop()
observations: Final = []
class Provider:
def __call__(self) -> str:
assert context.get() == "caller"
assert threading.current_thread() is caller_thread
assert asyncio.get_running_loop() is caller_loop
observations.append("token")
return "caller-token"
class Edit(CustomLogger):
def log_pre_api_call(self, model, messages, kwargs):
assert request_headers(kwargs)["Authorization"] == "Bearer caller-token"
observations.append("pre_call")
request_headers(kwargs)["Authorization"] = "Bearer edited"
provider: Final = Provider()
arguments: Final = {
"model": "azure_ai/mistral-ocr-latest",
"api_key": None,
"azure_ad_token_provider": provider,
"callbacks": [Edit()],
}
response: Final = (
await call_native_aocr(ocr_server, **arguments)
if asynchronous
else call_native_ocr(ocr_server, **arguments)
)
assert response.pages[0].markdown == "native OCR response"
assert observations == ["token", "pre_call"]
assert ocr_server.requests[0].headers["authorization"] == "Bearer edited"
@pytest.mark.asyncio
@pytest.mark.parametrize("asynchronous", [False, True], ids=["sync", "async"])
async def test_native_azure_ocr_token_provider_can_make_nested_native_ocr_call(
ocr_server: RecordingServer,
isolated_azure_auth: None,
asynchronous: bool,
) -> None:
ocr_server.expected_requests = 2
calls: Final = []
def provider() -> str:
calls.append("token")
nested: Final = call_native_ocr(ocr_server)
assert nested.pages[0].markdown == "native OCR response"
return "outer-token"
arguments: Final = {
"model": "azure_ai/mistral-ocr-latest",
"api_key": None,
"azure_ad_token_provider": provider,
}
response: Final = (
await call_native_aocr(ocr_server, **arguments)
if asynchronous
else call_native_ocr(ocr_server, **arguments)
)
assert response.pages[0].markdown == "native OCR response"
assert calls == ["token"]
assert [request.headers["authorization"] for request in ocr_server.requests] == [
"Bearer test-key",
"Bearer outer-token",
]
@pytest.mark.asyncio
async def test_concurrent_native_azure_ocr_calls_isolate_token_results_and_error(
ocr_server: RecordingServer,
isolated_azure_auth: None,
) -> None:
ocr_server.expected_requests = 2
async def request(token: str, fail: bool) -> object:
def provider() -> str:
if fail:
raise ValueError(token)
return token
return await call_native_aocr(
ocr_server,
model="azure_ai/mistral-ocr-latest",
api_key=None,
azure_ad_token_provider=provider,
)
responses: Final = await asyncio.gather(
request("first", False),
request("failed", True),
request("second", False),
return_exceptions=True,
)
assert isinstance(responses[0], OCRResponse)
assert isinstance(responses[1], litellm.APIConnectionError)
assert "Failed to get Azure AD token: failed" in str(responses[1])
assert isinstance(responses[2], OCRResponse)
assert sorted(request.headers["authorization"] for request in ocr_server.requests) == [
"Bearer first",
"Bearer second",
]
@pytest.mark.asyncio
@pytest.mark.parametrize("outcome", ["success", "failure", "cancellation"])
async def test_native_azure_ocr_releases_token_provider_after_terminal_outcome(
ocr_server: RecordingServer,
isolated_azure_auth: None,
outcome: str,
) -> None:
import gc
import weakref
from tests.test_litellm_rust.support.callback_recorder import drain_logging
class Provider:
def __call__(self) -> str:
if outcome == "failure":
raise ValueError("unavailable")
return "caller-token"
async def invoke() -> weakref.ReferenceType[Provider]:
provider: Final = Provider()
reference: Final = weakref.ref(provider)
if outcome == "failure":
ocr_server.expected_requests = 0
with pytest.raises(litellm.APIConnectionError):
await call_native_aocr(
ocr_server, model="azure_ai/mistral-ocr-latest", api_key=None, azure_ad_token_provider=provider
)
elif outcome == "cancellation":
ocr_server.enqueue(ResponseSpec(body=OCR_RESPONSE, delay=0.1))
task: Final = asyncio.create_task(
call_native_aocr(
ocr_server,
model="azure_ai/mistral-ocr-latest",
api_key=None,
azure_ad_token_provider=provider,
)
)
await ocr_server.wait_for_requests(1)
assert reference() is provider
task.cancel()
with pytest.raises(asyncio.CancelledError):
await task
else:
response: Final = await call_native_aocr(
ocr_server,
model="azure_ai/mistral-ocr-latest",
api_key=None,
azure_ad_token_provider=provider,
)
assert response.pages[0].markdown == "native OCR response"
return reference
reference: Final = await invoke()
await drain_logging()
await asyncio.sleep(0)
gc.collect()
assert reference() is None