Suppress terminal logging in CI tests (#504)

* Test logging to terminal is disabled for testing

* Suppress terminal logging in CI tests

* Pass verbosity_level to test terminal logging output

* Refactor

tests/conftest.py

@@ -0,0 +1,19 @@
+from unittest.mock import patch
+
+import pytest
+
+from smolagents.agents import MultiStepAgent
+
+
+original_multi_step_agent_init = MultiStepAgent.__init__
+
+
+@pytest.fixture(autouse=True)
+def patch_multi_step_agent_with_suppressed_logging():
+    with patch.object(MultiStepAgent, "__init__", autospec=True) as mock_init:
+
+        def init_with_suppressed_logging(self, *args, verbosity_level=-1, **kwargs):
+            original_multi_step_agent_init(self, *args, verbosity_level=verbosity_level, **kwargs)
+
+        mock_init.side_effect = init_with_suppressed_logging
+        yield

tests/test_agents.py

@@ -481,7 +481,8 @@ class AgentTests(unittest.TestCase):
         assert "You can also give requests to team members." in manager_agent.system_prompt
 
     def test_code_agent_missing_import_triggers_advice_in_error_log(self):
-        agent = CodeAgent(tools=[], model=fake_code_model_import)
+        # Set explicit verbosity level to 1 to override the default verbosity level of -1 set in CI fixture
+        agent = CodeAgent(tools=[], model=fake_code_model_import, verbosity_level=1)
 
         with agent.logger.console.capture() as capture:
             agent.run("Count to 3")
@@ -655,6 +656,11 @@ nested_answer()
 
 
 class TestMultiStepAgent:
+    def test_logging_to_terminal_is_disabled(self):
+        fake_model = MagicMock()
+        agent = MultiStepAgent(tools=[], model=fake_model)
+        assert agent.logger.level == -1, "logging to terminal should be disabled for testing using a fixture"
+
     def test_step_number(self):
         fake_model = MagicMock()
         agent = MultiStepAgent(tools=[], model=fake_model)