fix: make Azure Responses OpenAICompletion mock reliable under xdist

Patch AzureCompletion._openai_completion_class instead of the dynamic
import target so Responses delegate tests do not intermittently use the
real OpenAICompletion and fail under pytest-xdist.

Co-authored-by: Rip&Tear <theCyberTech@users.noreply.github.com>

lib/crewai/src/crewai/llms/providers/azure/completion.py

@@ -183,13 +183,24 @@ class AzureCompletion(BaseLLM):
             pass
         return self
 
+    @staticmethod
+    def _openai_completion_class() -> Any:
+        """Return the OpenAICompletion class used for Responses API delegation.
+
+        Isolated so tests can patch this lookup reliably under pytest-xdist
+        instead of racing the dynamic import inside ``_init_responses_delegate``.
+        """
+        from crewai.llms.providers.openai.completion import OpenAICompletion
+
+        return OpenAICompletion
+
     def _init_responses_delegate(self) -> None:
         """Create an OpenAICompletion delegate for the Azure OpenAI Responses API.
 
         The Azure OpenAI Responses API uses the standard OpenAI Python SDK
         with a base_url pointing to the Azure resource's /openai/v1/ endpoint.
         """
-        from crewai.llms.providers.openai.completion import OpenAICompletion
+        openai_completion_cls = self._openai_completion_class()
 
         base_url = self._get_responses_base_url()
 
@@ -239,7 +250,7 @@ class AzureCompletion(BaseLLM):
         if self.additional_params:
             delegate_kwargs["additional_params"] = self.additional_params
 
-        self._responses_delegate = OpenAICompletion(**delegate_kwargs)
+        self._responses_delegate = openai_completion_cls(**delegate_kwargs)
 
     def _get_responses_base_url(self) -> str:
         """Construct the base URL for the Azure OpenAI Responses API.

lib/crewai/tests/llms/azure/test_azure_responses.py

@@ -29,9 +29,12 @@ def azure_env():
 def mock_openai_completion():
     """Mock OpenAICompletion to avoid real client creation.
 
-    Patches at the source module so that the dynamic import inside
-    _init_responses_delegate picks up the mock.
+    Patches ``AzureCompletion._openai_completion_class`` so the Responses
+    delegate lookup is deterministic under pytest-xdist (patching the
+    dynamic import target alone can miss under parallel workers).
     """
+    from crewai.llms.providers.azure.completion import AzureCompletion
+
     instance = MagicMock()
     instance.call = MagicMock(return_value="responses-result")
     instance.acall = AsyncMock(return_value="async-responses-result")
@@ -41,9 +44,10 @@ def mock_openai_completion():
     instance.reset_reasoning_chain = MagicMock()
     mock_cls = MagicMock(return_value=instance)
 
-    with patch(
-        "crewai.llms.providers.openai.completion.OpenAICompletion",
-        mock_cls,
+    with patch.object(
+        AzureCompletion,
+        "_openai_completion_class",
+        return_value=mock_cls,
     ):
         yield mock_cls, instance