Question

我有以下简单的单元测试：

describe('SyncController', function() {
  var controller,
      deferredRecount,
      pouchdbServiceMock;

  beforeEach(module('inspector'));

  beforeEach(inject(function($controller, $q, $scope) {
    deferredRecount = $q.defer();

    pouchdbServiceMock = {
      getRecordCounts: jasmine.createSpy('getRecordCounts spy').and.returnValue(deferredRecount.promise)
    };

    controller = $controller('SyncController', {
      '$scope': $scope,
      'pouchdbService': pouchdbServiceMock
    });
  }));

  beforeEach(inject(function(_$rootScope_) {  
    $rootScope = _$rootScope_;
    controller.recount();
  }));

  describe('recount', function() {
    it('should call getRecordCounts on pouchdbService', function() {
      expect(pouchdbServiceMock.getRecordCounts).toHaveBeenCalled();
    });
  });
});

在最后pouchdbServiceMock.getRecordCounts块中调用describe会产生错误：

TypeError: undefined is not an object (evaluating 'pouchdbServiceMock.getRecordCounts') in unit-tests/sync.controller.tests.js (line 29)

但是在第二个pouchdbServiceMock块中分配了beforeEach。有什么问题？

Answer 1

你对pouchdbServiceMock的声明有点奇怪，至少从我去年做测试的经验来看。

pouchdbServiceMock = jasmine.createSpy('getRecordCounts', ['getRecordCounts']);
pouchdbServiceMock.getRecordCounts.and.returnValue(deferredRecount.promise);
$provide.value('pouchdbService', pouchdbServiceMock);

我将如何构建它。试一试，看看是否有效。

Answer 2

问题是，第二个beforeEach块出现错误：

Error: [$injector:unpr] Unknown provider: $scopeProvider <- $scope

因此它没有初始化变量pouchdbServiceMock。我重写了一下这个块：

  beforeEach(inject(function($controller, $q, $rootScope) {
    deferredRecount = $q.defer();
    scope = $rootScope.$new();

    pouchdbServiceMock = {
      getRecordCounts: jasmine.createSpy('getRecordCounts spy').and.returnValue(deferredRecount.promise)
    };

    controller = $controller('inspector.SyncController', {
      '$scope': scope,
      'pouchdbService': pouchdbServiceMock
    });
  }));

这解决了这个问题。

＆＃39; undefined不是一个对象＆＃39;在业力/茉莉花单元测试

2 个答案: