Class MockBadClient

tests/test_approaches.py:51–94

Mock client that simulates degraded provider responses. mode: - "empty_choices": response with an empty choices list - "none_content": a choice whose message.content is None - "length": a choice truncated with finish_reason == "length"

class MockBadClient:
    """Mock client that simulates degraded provider responses.

    mode:
      - "empty_choices": response with an empty choices list
      - "none_content":  a choice whose message.content is None
      - "length":        a choice truncated with finish_reason == "length"
    """
    def __init__(self, mode):
        self.chat = self.Chat(mode)

    class Chat:
        def __init__(self, mode):
            self.completions = self.Completions(mode)

        class Completions:
            def __init__(self, mode):
                self.mode = mode

            def create(self, **kwargs):
                mode = self.mode

                class MockUsage:
                    completion_tokens = 0
                    total_tokens = 0

                if mode == "empty_choices":
                    class MockResponse:
                        choices = []
                        usage = MockUsage()
                    return MockResponse()

                class MockMessage:
                    content = None if mode == "none_content" else "partial output"

                class MockChoice:
                    message = MockMessage()
                    finish_reason = "length" if mode == "length" else "stop"

                class MockResponse:
                    choices = [MockChoice()]
                    usage = MockUsage()

                return MockResponse()


def test_approach_imports():