Log error and check if maformed first

Author: Liquid369

test/functional/test_framework/authproxy.py

@@ -137,11 +137,21 @@ def get_request(self, *args, **argsn):
     def __call__(self, *args, **argsn):
         postdata = json.dumps(self.get_request(*args, **argsn), default=EncodeDecimal, ensure_ascii=self.ensure_ascii)
         response, status = self._request('POST', self.__url.path, postdata.encode('utf-8'))
-        if response['error'] is not None:
-            raise JSONRPCException(response['error'])
+        log.debug("Raw response content: %s", response)
+        if not isinstance(response, dict):
+            raise JSONRPCException({
+                'code': -342,
+                'message': 'Received non-JSON or malformed JSON response'
+            })
+        
+        if response.get('error') is not None:
+            raise JSONRPCException(response['error'], status)
         elif 'result' not in response:
             raise JSONRPCException({
-                'code': -343, 'message': 'missing JSON-RPC result'})
+                'code': -343, 'message': 'missing JSON-RPC result'}, status)
+        elif status != HTTPStatus.OK:
+            raise JSONRPCException({
+                'code': -342, 'message': 'non-200 HTTP status code but no JSON-RPC error'}, status)
         else:
             assert response['jsonrpc'] == '2.0'
             if status != HTTPStatus.OK: