控制器不使用模拟服务的延迟调用

Controller not invoking then with mock service's deferred

我正在尝试在 returns 承诺的服务中模拟一个方法。控制器:

app.controller('MainCtrl', function($scope, foo) {
var self = this;
this.bar = "";

this.foobar = function() {
  console.log('Calling the service.');
  foo.fn().then(function(data) {
    console.log('Received data.');
    self.bar = data;
  });
}

this.foobar();
});

规范文件:

angular.module('mock.foo', []).service('foo', function($q) {
var self = this;

this.fn = function() {
  console.log('Fake service.')
    var defer = $q.defer();
    defer.resolve('Foo');
    return defer.promise;
};
});

describe('controller: MainCtrl', function() {
var ctrl, foo, $scope;

beforeEach(module('app'));
// inject the mock service
beforeEach(module('mock.foo'));

beforeEach(inject(function($rootScope, $controller, _foo_) {
  foo = _foo_;
  $scope = $rootScope.$new();

  ctrl = $controller('MainCtrl', {$scope: $scope , foo: foo });
}));

it('Should call foo fn', function() {
expect($scope.bar).toBe('Foo');
});

});

调试时,我可以在控制器中看到 promise 对象状态为 1(已解决)。然而,then 中的成功回调从未被调用。

以下 Plunker http://plnkr.co/edit/xpiPKPdjhiaI8KEU1T5V 重现了该场景。任何帮助将不胜感激。

您必须在测试中获取对 $rootScope 的引用并调用:

$rootScope.$digest()

重访你的废话:

$digest called and test passed.

此外,您的模拟没有 return 解析中的任何内容,我补充说:

defer.resolve('Foo');

HTH