00:20 +96 ~1 -1: loading C:\projects\flutter sdk\packages\flutter\test\cupertino\scaffold_test.dart
00:21 +96 ~1 -1: C:\projects\flutter sdk\packages\flutter\test\cupertino\refresh_test.dart: UI tests - doesn't invoke anything without user interaction [E]
  NoSuchMethodError: The method '_setExpected' was called on null.
  Receiver: null
  Tried calling: _setExpected(Closure: (Invocation) => dynamic)
  dart:core                             Object.noSuchMethod
  package:mockito/src/mock.dart 318:15  PostExpectation._completeWhen
  package:mockito/src/mock.dart 304:12  PostExpectation.thenReturn
  cupertino\refresh_test.dart 27:30     main.<fn>
  
  'package:flutter_test/src/binding.dart': Failed assertion: line 519 pos 12: 'inTest': is not true.
  dart:core                                     _AssertionError._throwNew
  package:flutter_test/src/binding.dart         TestWidgetsFlutterBinding.postTest
  package:flutter_test/src/binding.dart 680:11  AutomatedTestWidgetsFlutterBinding.postTest