Phase 11

tests/test_face_logger.py

@@ -0,0 +1,32 @@
+import csv
+from pathlib import Path
+
+from src.config_loader import FaceLoggingSettings
+from src.face_logger import FaceLogger
+from src.models import FaceTrackState, HeadPoseResult
+
+
+def test_face_logs_success_failure_bom_and_summary_deduplication(tmp_path: Path) -> None:
+    logger = FaceLogger(FaceLoggingSettings(True, True, True, 1, str(tmp_path)), "exp", "20260101_000000")
+    logger.open()
+    success = HeadPoseResult(1, 1, "now", .1, True, True, 1.0, -2.0, 3.0, 468, None, .9)
+    failure = HeadPoseResult(1, 2, "later", .2, False, False, None, None, None, 0, None, None, "face_not_detected")
+    logger.write_results([success, failure])
+    state = FaceTrackState(1, total_frames=2, face_detected_frames=1, pose_estimated_frames=1,
+                           last_pitch=1.0, last_yaw=-2.0, last_roll=3.0, min_yaw=-2.0,
+                           max_yaw=-2.0, yaw_sum=-2.0, last_result=failure, finalized=True)
+    logger.write_summary(state)
+    logger.write_summary(state)
+    logger.close()
+    logger.close()
+    paths = list(tmp_path.glob("*.csv"))
+    assert len(paths) == 2
+    assert all(path.read_bytes().startswith(b"\xef\xbb\xbf") for path in paths)
+    frame_path = next(path for path in paths if "frames" in path.name)
+    with frame_path.open(encoding="utf-8-sig", newline="") as stream:
+        rows = list(csv.DictReader(stream))
+        assert len(rows) == 2 and rows[1]["failure_reason"] == "face_not_detected"
+        assert "yaw" in rows[0]
+    summary_path = next(path for path in paths if "summary" in path.name)
+    with summary_path.open(encoding="utf-8-sig", newline="") as stream:
+        assert len(list(csv.DictReader(stream))) == 1