Javascript 如何使用一个函数测试Angular控制器,该函数在不模拟AJAX调用的情况下进行AJAX调用?
我在控制器中有一个函数,该函数调用一个服务,该服务反过来调用另一个服务,该服务进行AJAX调用并返回承诺。简言之:Javascript 如何使用一个函数测试Angular控制器,该函数在不模拟AJAX调用的情况下进行AJAX调用?,javascript,angularjs,unit-testing,jasmine,karma-jasmine,Javascript,Angularjs,Unit Testing,Jasmine,Karma Jasmine,我在控制器中有一个函数,该函数调用一个服务,该服务反过来调用另一个服务,该服务进行AJAX调用并返回承诺。简言之: MainController call = function(){ //Handle the promise here, update some configs and stuff someService.call().then(success, failure); } SomeService return {
MainController
call = function(){
//Handle the promise here, update some configs and stuff
someService.call().then(success, failure);
}
SomeService
return {
call: function(){
return SomeOtherService.call();
}
}
SomeOtherService
return {
call: function(){
return $http.get(someUrl);
}
}
如何在不实际进行AJAX调用的情况下测试主控制器的调用函数?显然,我将单独测试这些服务
更新:所以我根据下面的答案进行了更改,这是我得到的:
angular.module('myApp')
.controller('LoginCtrl', ['$scope', '$location', 'AuthService', '$state', function ($scope, $location, AuthService, $state) {
$scope.user = {};
$scope.login = function(user) {
$scope.user = user;
//This login function in turn calls the 'authenticate' from another service 'Ajax' and the promise is handled here.
AuthService.login($scope.user)
.then(function() {
$scope.loginStatus = {
message : 'Login successful',
alertClass : 'success'
};
$state.go('app.dashboard');
}, function() {
$scope.loginStatus = {
message : 'Unauthorized access.',
alertClass : 'danger'
};
});
};
$scope.closeAlert = function() {
$scope.loginStatus = false;
};
}]);
PhantomJS 1.9.7 (Linux) Controller: LoginCtrl should call login FAILED
TypeError: 'undefined' is not an object (evaluating 'AuthService.login($scope.user)
.then')
at /home/rutwickg/Projects/workspace/myProject/app/scripts/controllers/login.js:15
at /home/rutwickg/Projects/workspace/myProject/test/spec/controllers/login.js:34
at /home/rutwickg/Projects/workspace/myProject/node_modules/karma-jasmine/lib/boot.js:117
at /home/rutwickg/Projects/workspace/myProject/node_modules/karma-jasmine/lib/adapter.js:171
at http://localhost:8080/karma.js:189
at http://localhost:8080/context.html:145
以下是我当前的代码:
'use strict';
describe('Controller: LoginCtrl', function() {
// load the controller's module
beforeEach(module('sseFeApp'));
var LoginCtrl,
scope,
authMock,
ajaxMock,
q;
// Initialize the controller and a mock scope
beforeEach( inject(function($controller, $rootScope, _AuthService_, _Ajax_, $q) {
authMock = _AuthService_;
ajaxMock = _Ajax_;
q = $q;
scope = $rootScope.$new();
LoginCtrl = $controller('LoginCtrl', {
$scope: scope
});
}));
it('should call login', function() {
var deferred = q.defer();
spyOn( authMock, 'login').and.returnValue(deferred.promise);
$scope.login({username: 'Sample', password: 'Sample'});
deferred.reject({});
expect( authMock.login ).toHaveBeenCalled();
//expect( ajaxMock.login).toHaveBeenCalled(); //Expect the second service call
});
});
更新:根据新语法,它应该
和.returnValue(deferred.promise)
。工作 您只需注入自己的服务并监视正在调用的函数
describe( 'Controller: myCtrl', function () {
var myService,
...;
beforeEach( inject( function ( _myService_ ) {
...
myService = _myService_;
...
} ) );
it( 'should call myService.call', inject(function ($q)
{
var deferred = $q.defer();
spyOn( myService, 'call' ).andReturn(deferred.promise);
// .and.returnValue() for jasmine 2.0
$scope.myControllerFn();
deferred.resolve( {} ); // for success
// deferred.reject() --> for error
$scope.digest(); // do this if you want success/error to be executed.
expect( myService.call ).toHaveBeenCalled();
} );
} );
请让我试试。这会给我“未定义为对象”错误。此外,此代码仅测试一个服务级别。我的控制器调用一个服务,该服务又调用另一个服务。错误发生在哪里?实际上什么是未定义的?第二个“级别”的工作原理基本相同。您将要模拟的服务注入到您希望调用的函数中,我已经更新了我的问题描述。请检查。如果在解析或拒绝后执行$scope.$digest(),则会调用成功或错误。因此,如果你想测试成功部分,你必须解决()延迟部分,如果你想测试错误部分,你必须拒绝()延迟部分。介意提供实际控制器吗?现在请检查,我也添加了控制器。检查我的答案我添加了“$q/延迟”-部分。