test(reasoning): Add tests for Reasoning base class

tests/test_reasoning/test_reasoning.py

@@ -1,10 +1,9 @@
-# tests/test_reasoning/test_reasoning.py
-
 from unittest.mock import Mock
 
 from mesa_llm.reasoning.reasoning import (
     Observation,
     Plan,
+    Reasoning,
 )
 
 
@@ -39,3 +38,53 @@ def test_plan_creation(self):
         assert plan.step == 1
         assert plan.llm_plan == mock_llm_response
         assert plan.ttl == 3
+
+
+class TestReasoningBase:
+    """Tests for the abstract Reasoning base class."""
+
+    def test_execute_tool_call_generates_plan(self):
+        """Test that the base execute_tool_call method produces a Plan."""
+        # 1. Setup a mock agent with all necessary components
+        mock_agent = Mock()
+        mock_agent.model.steps = 5
+
+        # Mock the LLM and its response
+        mock_llm_response = Mock()
+        mock_llm_response.choices = [Mock()]
+        mock_llm_response.choices[0].message = "Final LLM message"
+        mock_agent.llm.generate.return_value = mock_llm_response
+
+        # Mock the Tool Manager
+        mock_agent.tool_manager.get_all_tools_schema.return_value = [
+            {"schema": "example"}
+        ]
+
+        # 2. Instantiate a concrete implementation of Reasoning to test the base method
+        class ConcreteReasoning(Reasoning):
+            def plan(self, prompt, obs=None, ttl=1, selected_tools=None):
+                pass  # Not needed for this test
+
+        reasoning = ConcreteReasoning(agent=mock_agent)
+
+        # 3. Call the method we want to test
+        chaining_message = "Execute the plan."
+        result_plan = reasoning.execute_tool_call(
+            chaining_message, selected_tools=["tool1"]
+        )
+
+        # 4. Assert the results
+        # Assert that the LLM was called with the correct parameters
+        mock_agent.llm.generate.assert_called_once_with(
+            prompt=chaining_message,
+            tool_schema=[{"schema": "example"}],
+            tool_choice="required",
+        )
+        # Assert that the tool manager was asked for the correct schema
+        mock_agent.tool_manager.get_all_tools_schema.assert_called_once_with(
+            selected_tools=["tool1"]
+        )
+        # Assert that the output is a correctly formed Plan object
+        assert isinstance(result_plan, Plan)
+        assert result_plan.step == 5
+        assert result_plan.llm_plan == "Final LLM message"