add delete judge server api

utils/api/api.py

@@ -56,7 +56,7 @@ class APIView(View):
     response_class = JSONResponse
 
     def _get_request_data(self, request):
-        if request.method != "GET":
+        if request.method not in ["GET", "DELETE"]:
             body = request.body
             content_type = request.META.get("CONTENT_TYPE")
             if not content_type:

utils/api/tests.py

@@ -27,7 +27,8 @@ class APITestCase(TestCase):
         return reverse(url_name)
 
     def assertSuccess(self, response):
-        self.assertTrue(response.data["error"] is None)
+        if not response.data["error"] is None:
+            raise AssertionError("response with errors, response: " + str(response.data))
 
     def assertFailed(self, response):
         self.assertTrue(response.data["error"] is not None)