specify tool_choice in tool calling tests

libs/standard-tests/langchain_standard_tests/integration_tests/chat_models.py

@@ -170,7 +170,7 @@ def test_stop_sequence(self, model: BaseChatModel) -> None:
     def test_tool_calling(self, model: BaseChatModel) -> None:
         if not self.has_tool_calling:
             pytest.skip("Test requires tool calling.")
-        model_with_tools = model.bind_tools([magic_function])
+        model_with_tools = model.bind_tools([magic_function], tool_choice="any")
 
         # Test invoke
         query = "What is the value of magic_function(3)? Use the tool."
@@ -188,7 +188,7 @@ def test_tool_calling_with_no_arguments(self, model: BaseChatModel) -> None:
         if not self.has_tool_calling:
             pytest.skip("Test requires tool calling.")
 
-        model_with_tools = model.bind_tools([magic_function_no_args])
+        model_with_tools = model.bind_tools([magic_function_no_args], tool_choice="any")
         query = "What is the value of magic_function()? Use the tool."
         result = model_with_tools.invoke(query)
         _validate_tool_call_message_no_args(result)
@@ -212,7 +212,7 @@ def test_bind_runnables_as_tools(self, model: BaseChatModel) -> None:
             name="greeting_generator",
             description="Generate a greeting in a particular style of speaking.",
         )
-        model_with_tools = model.bind_tools([tool_])
+        model_with_tools = model.bind_tools([tool_], tool_choice="any")
         query = "Using the tool, generate a Pirate greeting."
         result = model_with_tools.invoke(query)
         assert isinstance(result, AIMessage)