fix: assign mocks post-init for remaining executor tests

Remove spec= from mocks and construct executors with defaults, then
assign mock agent/task/crew after init to avoid pydantic validation.

lib/crewai/tests/agents/test_native_tool_calling.py

@@ -1142,32 +1142,29 @@ class TestNativeToolCallingJsonParseError:
 
     def _make_executor(self, tools: list[BaseTool]) -> "CrewAgentExecutor":
         """Create a minimal CrewAgentExecutor with mocked dependencies."""
-        from crewai.agents.agent_builder.base_agent import BaseAgent
         from crewai.agents.crew_agent_executor import CrewAgentExecutor
-        from crewai.crew import Crew
-        from crewai.task import Task
         from crewai.tools.base_tool import to_langchain
 
         structured_tools = to_langchain(tools)
-        mock_agent = Mock(spec=BaseAgent)
+        mock_agent = Mock()
         mock_agent.key = "test_agent"
         mock_agent.role = "tester"
         mock_agent.verbose = False
         mock_agent.fingerprint = None
         mock_agent.tools_results = []
 
-        mock_task = Mock(spec=Task)
+        mock_task = Mock()
         mock_task.name = "test"
         mock_task.description = "test"
         mock_task.id = "test-id"
 
-        return CrewAgentExecutor(
-            agent=mock_agent,
-            task=mock_task,
-            crew=Mock(spec=Crew),
+        executor = CrewAgentExecutor(
             tools=structured_tools,
             original_tools=tools,
         )
+        executor.agent = mock_agent
+        executor.task = mock_task
+        return executor
 
     def test_malformed_json_returns_parse_error(self) -> None:
         """Malformed JSON args must return a descriptive error, not silently become {}."""

lib/crewai/tests/memory/test_memory_root_scope.py

@@ -1041,32 +1041,28 @@ class TestAgentExecutorBackwardCompat:
 
     def test_agent_executor_no_root_scope_when_memory_has_none(self) -> None:
         """Agent executor doesn't inject root_scope when memory has none."""
-        from crewai.agents.agent_builder.base_agent import BaseAgent
         from crewai.agents.agent_builder.base_agent_executor import (
             BaseAgentExecutor,
         )
         from crewai.agents.parser import AgentFinish
-        from crewai.task import Task
 
         mock_memory = MagicMock()
         mock_memory.read_only = False
         mock_memory.root_scope = None  # No root_scope set
         mock_memory.extract_memories.return_value = ["Fact A"]
 
-        mock_agent = MagicMock(spec=BaseAgent)
+        mock_agent = MagicMock()
         mock_agent.memory = mock_memory
         mock_agent._logger = MagicMock()
         mock_agent.role = "Researcher"
 
-        mock_task = MagicMock(spec=Task)
+        mock_task = MagicMock()
         mock_task.description = "Task"
         mock_task.expected_output = "Output"
 
-        executor = BaseAgentExecutor(
-            crew=None,
-            agent=mock_agent,
-            task=mock_task,
-        )
+        executor = BaseAgentExecutor()
+        executor.agent = mock_agent
+        executor.task = mock_task
 
         executor._save_to_memory(AgentFinish(thought="", output="R", text="R"))