add: a test added for 'represent' API endpoint to check the url input

    This commit adds a new test case for the 'represent' API endpoint. The test verifies that the endpoint correctly processes an image URL and returns the expected data structure, including the correct number of face embeddings, face confidence, and facial area for each detected face in the image.

tests/test_api.py

@@ -106,6 +106,29 @@ def test_represent_encoded(self):
 
         logger.info("✅ representation api test is done")
 
+    def test_represent_url(self):
+        data = {
+            "model_name": "Facenet",
+            "detector_backend": "mtcnn",
+            "img": "https://github.com/serengil/deepface/blob/master/tests/dataset/couple.jpg?raw=true"
+        }
+
+        response = self.app.post("/represent", json=data)
+        assert response.status_code == 200
+        result = response.json
+        logger.debug(result)
+        assert result.get("results") is not None
+        assert isinstance(result["results"], list) is True
+        assert len(result["results"]) == 2  # 2 faces are in the image link
+        for i in result["results"]:
+            assert i.get("embedding") is not None
+            assert isinstance(i.get("embedding"), list) is True
+            assert len(i.get("embedding")) == 128
+            assert i.get("face_confidence") is not None
+            assert i.get("facial_area") is not None
+
+        logger.info("✅ representation api test is done")
+
     def test_analyze(self):
         data = {
             "img": "dataset/img1.jpg",