Add test for relationship pointer in errors

Signed-off-by: Mehdy Khoshnoody <mehdy.khoshnoody@gmail.com>

Author: mehdy

example/tests/test_views.py

@@ -124,6 +124,29 @@ def test_relationship_view_errors_format(self):
         assert "data" not in result
         assert "errors" in result
 
+    def test_relationship_view_errors_has_correct_pointers(self):
+        url = "/comments"
+        request_data = {
+            "data": {
+                "type": "comments",
+                "attributes": {"text": "comment text"},
+                "relationships": {
+                    "author": {"data": {"id": "INVALID_ID", "type": "authors"}}
+                },
+            }
+        }
+        response = self.client.post(url, data=request_data)
+        assert response.status_code == 400
+
+        result = json.loads(response.content.decode("utf-8"))
+        errors_source_pointer = list(
+            map(lambda i: i["source"]["pointer"], result["errors"])
+        )
+
+        assert "/data/attributes/body" in errors_source_pointer
+        assert "/data/relationships/author" in errors_source_pointer
+        assert "/data/relationships/entry" in errors_source_pointer
+
     def test_get_empty_to_one_relationship(self):
         url = "/comments/{}/relationships/author".format(self.first_entry.id)
         response = self.client.get(url)