test_agent_loop

To disable tool calling tests, set has_tool_calling to False in your test class:

class TestMyChatModelIntegration(ChatModelIntegrationTests):
    @property
    def has_tool_calling(self) -> bool:
        return False

If this test fails, check that bind_tools is implemented to correctly translate LangChain tool objects into the appropriate schema for your chat model.

Check also that all required information (e.g., tool calling identifiers) from AIMessage objects is propagated correctly to model payloads.

This test may fail if the chat model does not consistently generate tool calls in response to an appropriate query. In these cases you can xfail the test:

@pytest.mark.xfail(reason=("Does not support tool_choice."))
def test_agent_loop(self, model: BaseChatModel) -> None:
    super().test_agent_loop(model)