conductor(checkpoint): Checkpoint end of Phase 2: Test Suite Migration

tests/test_performance_monitor.py

@@ -1,51 +1,29 @@
-import unittest
+import pytest
+import sys
+import os
 import time
-from unittest.mock import MagicMock
+
+# Ensure project root is in path
+sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), "..")))
+
 from performance_monitor import PerformanceMonitor
 
-class TestPerformanceMonitor(unittest.TestCase):
-    def setUp(self):
-        self.monitor = PerformanceMonitor()
+def test_perf_monitor_basic_timing():
+    pm = PerformanceMonitor()
+    pm.start_frame()
+    time.sleep(0.02) # 20ms
+    pm.end_frame()
+    
+    metrics = pm.get_metrics()
+    assert metrics['last_frame_time_ms'] >= 20.0
+    pm.stop()
 
-    def test_frame_time_collection(self):
-        # Simulate frames for 1.1 seconds to trigger FPS calculation
-        start = time.time()
-        while time.time() - start < 1.1:
-            self.monitor.start_frame()
-            time.sleep(0.01)  # ~100 FPS
-            self.monitor.end_frame()
-        
-        metrics = self.monitor.get_metrics()
-        self.assertAlmostEqual(metrics['last_frame_time_ms'], 10, delta=10)
-        self.assertGreater(metrics['fps'], 0)
-
-    def test_cpu_usage_collection(self):
-        metrics = self.monitor.get_metrics()
-        self.assertIn('cpu_percent', metrics)
-        self.assertIsInstance(metrics['cpu_percent'], float)
-
-    def test_input_lag_collection(self):
-        self.monitor.start_frame()
-        self.monitor.record_input_event()
-        time.sleep(0.02)  # 20ms lag
-        self.monitor.end_frame()
-        
-        metrics = self.monitor.get_metrics()
-        self.assertGreaterEqual(metrics['input_lag_ms'], 20)
-        self.assertLess(metrics['input_lag_ms'], 40)
-
-    def test_alerts_triggering(self):
-        mock_callback = MagicMock()
-        self.monitor.alert_callback = mock_callback
-        self.monitor.thresholds['frame_time_ms'] = 5.0  # Low threshold
-        self.monitor._alert_cooldown = 0  # No cooldown for test
-        
-        self.monitor.start_frame()
-        time.sleep(0.01)  # 10ms > 5ms
-        self.monitor.end_frame()
-        
-        mock_callback.assert_called_once()
-        self.assertIn("Frame time high", mock_callback.call_args[0][0])
-
-if __name__ == '__main__':
-    unittest.main()
+def test_perf_monitor_component_timing():
+    pm = PerformanceMonitor()
+    pm.start_component("test_comp")
+    time.sleep(0.01)
+    pm.end_component("test_comp")
+    
+    metrics = pm.get_metrics()
+    assert metrics['time_test_comp_ms'] >= 10.0
+    pm.stop()