Fix flaky tests (#3724)

* adds continuation to silence rejected promises

* Wrap json parsing

src/Adapters/Auth/qq.js

@@ -32,7 +32,11 @@ function graphRequest(path) {
           throw new Parse.Error(Parse.Error.OBJECT_NOT_FOUND, 'qq auth is invalid for this user.');
         }
         data = data.substring(starPos + 1,endPos - 1);
-        data = JSON.parse(data);
+        try {
+          data = JSON.parse(data);
+        } catch(e) {
+          return reject(e);
+        }
         resolve(data);
       });
     }).on('error', function () {