angularjs - 如何在 Karma/jasmine 中模拟 window.location 函数

Question

我想模拟 Karma 中的一个功能，它在单击下载按钮后返回一个文件。
我有以下 AngularJS Controller :

var secure = angular.module('secure', []);
secure.controller('ProcedureController', ProcedureController);
ProcedureController.$inject = ['$controller', '$rootScope', '$scope', '$http'];

function ProcedureController($controller, $rootScope, $scope, $http) {

  ... // Controller does more stuff

  var href = window.location.href.split('/');
  var baseUrl = href[0] + '//' + href[2];
  var url = baseUrl + "/secure/regulations";

  $http.get(url)
    .success(function (data) {
        $scope.questions = data[0];
    })

  $scope.download = function (msg) {
    window.location = url + "/" + msg + "/attachment";
  }
}

window.location 对象只是调用一个 RESTful 服务，该服务直接为他提供所需的文件。
这基本上是我的尝试测试:

describe('ProcedureController', function () {
  beforeEach(module('secure'));

  beforeEach(inject(function ($rootScope, $http, $controller, $injector) {
    scope = $rootScope.$new();
    ProcedureController = $controller('ProcedureController', {
        $scope: scope,
        $http: $http
    });
  }));

  it ('should download something', function() {
    expect(scope.download(1)).toBeDefined();
  });

 });

所以，我的想法是检查 scope.download 函数何时被调用，如果它返回正确的 url，即当我尝试 scope.download(1) 时，预期的答案将是 /secure/regulations/1/attachment ， 大致。

我应该如何 mock 它？任何帮助表示赞赏!

Answer 1

使用 $window反而:

var secure = angular.module('secure', []);
secure.controller('ProcedureController', ProcedureController);
ProcedureController.$inject = ['$controller', '$rootScope', '$scope', '$http', '$window'];

function ProcedureController($controller, $rootScope, $scope, $http, $window) {

  ... // Controller does more stuff

  var href = $window.location.href.split('/');
  var baseUrl = href[0] + '//' + href[2];
  var url = baseUrl + "/secure/regulations";

  $http.get(url)
    .success(function (data) {
        $scope.questions = data[0];
    })

  $scope.download = function (msg) {
    $window.location = url + "/" + msg + "/attachment";
  }
}

describe('ProcedureController', function () {
  var windowObj = {location: {href: ''}};

  beforeEach(mock.module(function($provide) {
     $provide.value('$window', windowObj);
  }));
  beforeEach(module('secure'));

  beforeEach(inject(function ($rootScope, $http, $controller, $injector) {
    scope = $rootScope.$new();
    ProcedureController = $controller('ProcedureController', {
        $scope: scope,
        $http: $http
    });
  }));

  it ('should download something', function() {
    expect(scope.download).toBeDefined();
    scope.download(1);
    expect(windowObj.location.href).toEqual('/secure/regulations/1/attachment');
  });

 });