我有一个使用简单的JavaScript执行确认的一些行动之前Angularjs应用。
控制器:
function TokenController($scope) {
$scope.token = 'sampleToken';
$scope.newToken = function() {
if (confirm("Are you sure you want to change the token?") == true) {
$scope.token = 'modifiedToken';
}
};
}
视图:
<div id="tokenDiv">
Token:{{token}} <button ng-click="newToken()">New Token</button>
</div>
现在,我想有一个端到端的测试,以检查令牌被在视图中正确地更换。 我怎样才能拦截javascript.confirm()
调用,这样它不会停止测试的执行?
测试:
it('should be able to generate new token', function () {
var oldValues = element('#tokenDiv').text();
element('button[ng-click="newToken()"]').click(); // Here the javascript confirm box pops up.
expect(element('#tokenDiv').text()).not.toBe(oldValues);
});
到目前为止,我已经试过重新定义window.confirm
功能,但后来的实际通话抱怨说,它是不确定的。
我也想建立一个茉莉花刺探window.confirm
但在语法如下spyOn(window, 'confirm');
它给了我一个错误说你不能窥视null
。
我怎么会去这样做测试工作?
端到端测试
请咨询到这个项目: https://github.com/katranci/Angular-E2E-Window-Dialog-Commands
单元测试
如果您创建对话框服务,那么你可以模拟该服务在您的单元测试,以使你的代码可测试:
调节器
function TokenController($scope, modalDialog) {
$scope.token = 'sampleToken';
$scope.newToken = function() {
if (modalDialog.confirm("Are you sure you want to change the token?") == true) {
$scope.token = 'modifiedToken';
}
};
}
modalDialog服务
yourApp.factory('modalDialog', ['$window', function($window) {
return {
confirm: function(message) {
return $window.confirm(message);
}
}
}]);
modalDialogMock
function modalDialogMock() {
this.confirmResult;
this.confirm = function() {
return this.confirmResult;
}
this.confirmTrue = function() {
this.confirmResult = true;
}
this.confirmFalse = function() {
this.confirmResult = false;
}
}
测试
var scope;
var modalDialog;
beforeEach(module('yourApp'));
beforeEach(inject(function($rootScope, $controller) {
scope = $rootScope.$new();
modalDialog = new modalDialogMock();
var ctrl = $controller('TokenController', {$scope: scope, modalDialog: modalDialog});
}));
it('should be able to generate new token', function () {
modalDialog.confirmTrue();
scope.newToken();
expect(scope.token).toBe('modifiedToken');
});
另一种选择是直接创建一个间谍,并自动返回true
:
//Jasmine 2.0
spyOn(window, 'confirm').and.callFake(function () {
return true;
});
//Jasmine 1.3
spyOn(window, 'confirm').andCallFake(function () {
return true;
});
在单元测试中,你可以嘲笑这样的$窗口对象:
您的测试:
beforeEach(function() {
module('myAppName');
inject(function($rootScope, $injector) {
$controller = $injector.get('$controller');
$scope = $rootScope.$new();
var windowMock = { confirm: function(msg) { return true } }
$controller('UsersCtrl', { $scope: $scope, $window: windowMock });
});
});
控制器:
myAppName.controller('UsersCtrl', function($scope, $window) {
$scope.delete = function() {
var answer = $window.confirm('Delete?');
if (answer) {
// doing something
}
}
});