First commit with entire first rendition of the project

tests/test_gallery.py

@@ -0,0 +1,38 @@
+import io
+
+from PIL import Image as PILImage
+
+
+def _upload_image(client, filename="test_photo.jpg", color=(128, 64, 200)):
+    img = PILImage.new("RGB", (800, 600), color=color)
+    buf = io.BytesIO()
+    img.save(buf, format="JPEG")
+    buf.seek(0)
+    return client.post(
+        "/api/images",
+        data={"file": (buf, filename)},
+        content_type="multipart/form-data",
+    )
+
+
+class TestGalleryDelete:
+    def test_upload_delete_flow(self, client):
+        resp = _upload_image(client)
+        assert resp.status_code == 201
+        data = resp.get_json()
+        image_id = data["id"]
+
+        resp = client.get("/api/images")
+        assert resp.status_code == 200
+        data = resp.get_json()
+        total_before = data["total"]
+        assert total_before >= 1
+
+        resp = client.delete(f"/api/images/{image_id}")
+        assert resp.status_code == 200
+        assert resp.get_json() == {"status": "deleted"}
+
+        resp = client.get("/api/images")
+        assert resp.status_code == 200
+        data = resp.get_json()
+        assert data["total"] == total_before - 1