working the player

tests/test_tracker.py

@@ -0,0 +1,38 @@
+"""Tests for cht.stream.tracker — RecordingTracker."""
+
+import time
+from pathlib import Path
+from unittest.mock import patch, MagicMock
+
+import pytest
+
+from cht.stream.tracker import RecordingTracker
+
+
+class TestRecordingTracker:
+    def test_initial_duration_is_zero(self, tmp_path):
+        tracker = RecordingTracker(tmp_path / "rec.ts")
+        assert tracker.duration == 0.0
+
+    def test_callback_called_on_update(self, tmp_path):
+        rec = tmp_path / "rec.ts"
+        rec.write_bytes(b"\x00" * 100_000)
+
+        cb = MagicMock()
+        tracker = RecordingTracker(rec, on_duration_update=cb)
+
+        with patch.object(tracker, "_probe_duration", return_value=10.0):
+            tracker.start()
+            time.sleep(3)
+            tracker.stop()
+
+        cb.assert_called()
+        assert cb.call_args[0][0] > 0
+
+    def test_no_callback_if_file_missing(self, tmp_path):
+        cb = MagicMock()
+        tracker = RecordingTracker(tmp_path / "nonexistent.ts", on_duration_update=cb)
+        tracker.start()
+        time.sleep(3)
+        tracker.stop()
+        cb.assert_not_called()