chore: 允许 ai-service Python 文件入库（.gitignore 例外）

ai-service/tests/test_detector.py

@@ -0,0 +1,25 @@
+import base64
+
+import pytest
+
+from app.detector import MockDetector
+
+# 1x1 透明 PNG
+TINY_PNG = base64.b64decode(
+    "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mP8z8BQDwAEhQGAhKmMIQAAAABJRU5ErkJggg=="
+)
+
+
+def test_mock_detector_returns_canned_detection():
+    det = MockDetector(class_name="sick", confidence=0.92)
+    result = det.detect(TINY_PNG)
+    assert len(result) == 1
+    assert result[0]["class_name"] == "sick"
+    assert result[0]["confidence"] == 0.92
+    assert result[0]["bbox"]["w"] > 0
+
+
+def test_mock_detector_rejects_invalid_image():
+    det = MockDetector()
+    with pytest.raises(ValueError):
+        det.detect(b"not an image")