[英]Unit testing two dependent services and controller in AngularJS
我有一個演示應用程序,其中有一個控制器,該控制器具有一個作為依賴項的工廠,而工廠本身依賴於另一個服務。 我的代碼如下:
var app = angular.module('sampleApp', ['ui.router']);
app.service("someServ", function(){
this.sendMsg = function(name){
return "Hello " + name;
}
})
app.factory("appFactory", function ($http, someServ) {
function getData(url) {
return $http.get(url);
}
function foo(){
var text = someServ.sendMsg("Monotype");
alert(text);
}
return {
getData : getData,
foo : foo
}
})
var productsController = function ($scope, $http, appFactory) {
var pct = this;
pct.url = "http://mysafeinfo.com/api/data?list=englishmonarchs&format=json";
var jsonDataPromise = appFactory.getData(pct.url);
jsonDataPromise
.then(function (response) {
pct.jsonData = response.data;
}, function (err) {
console.log("Error is: " + error);
});
pct.profun = function(){
appFactory.foo();
}
};
app.controller("productsController", productsController);
productsController.$inject = ['$scope', '$http', 'appFactory'];
我必須使用Jasmine 2.4作為測試框架來進行業力測試。 我嘗試了許多在線教程,但由於每個人都嘗試做不同的事情而感到完全困惑。 有些使用$ provide模擬服務,有些簡單地注入實際的服務/工廠並使用引用,有些沒有給出將參數傳遞給服務的示例。
有人可以簡單地告訴我如何進行單元測試。 我已經嘗試過這樣做:
describe('unit testing of service and controller', function(){
beforeEach(module('sampleApp'));
var prodCtrl, $prodScope, mockfactory, mockservice;
beforeEach(function(){
mockservice = {
sendMsg : function(name){
return name;
}
}
module(function($provide){
$provide.value("someServ", mockservice);
});
inject(function($rootScope, $controller, $http, $q, appFactory){
appFactory = appFactory;
spyOn(appFactory, 'getData');
spyOn(appFactory, 'foo');
$prodScope = $rootScope.$new();
prodCtrl = $controller('productsController', {
$scope: $prodScope, $http: $http, appFactory:appFactory
});
});
});
it('appFactory has method getData and foo', function(){
appFactory.getData();
appFactory.foo();
expect(appFactory.getData).toHaveBeenCalled();
expect(appFactory.foo).toHaveBeenCalled();
})
it('productsController gets a promise back from getData', function(){
var url = "sample url";
var myPromise = prodCtrl.getData(url);
myPromise.then(function(){console.log("Promise returned");})
})
it('foo calls service method sendMsg', function(){
prodCtrl.profun();
expect(mockservice.sendMsg).toHaveBeenCalled();
})
});
我終於能夠解決這個問題。 我的代碼如下所示:
var app = angular.module('sampleApp', []);
app.service("someServ", function(){
this.sendMsg = function(name){
return "Hello " + name;
}
})
app.factory("appFactory", function ($q, someServ) {
function getData() {
var defer = $q.defer();
defer.resolve("Success message");
return defer.promise;
}
function foo(){
var text = someServ.sendMsg("Monotype");
alert(text);
}
return {
getData : getData,
foo : foo
}
})
app.controller("mainController", ['$scope', '$http','appFactory', function($scope, $http, appFactory){
var mct = this;
mct.printData = function(){
var myPromise = appFactory.getData();
myPromise
.then(function(data){
alert("Promise returned successfully. Data : " + data);
}, function(error){
alert("Something went wrong.... Error: " + error);
})
}
mct.showMsg = function(){
appFactory.foo();
}
}]);
測試用例如下所示:
describe('unit testing', function(){
var jsonData = {
name: "Aosis",
id: 12345
}
beforeEach(module('sampleApp'));
beforeEach(module(function($provide){
$provide.service("someServ", function(){
//this.sendMsg = function(param){}
this.sendMsg = jasmine.createSpy('sendMsg').and.callFake(function(param){})
});
$provide.factory("appFactory", function(someServ, $q){
function getData(){
var defer = $q.defer();
defer.resolve("Success message");
return defer.promise;
}
function foo(){
var facParam = "some text";
someServ.sendMsg(facParam);
}
return {
getData : getData,
foo : foo
}
});
}));
var $scope, mainController, appFactoryMock, someServMock;
beforeEach(inject(function($rootScope, $controller, $http, $q, appFactory, someServ){
appFactoryMock = appFactory;
someServMock = someServ;
$scope = $rootScope.$new();
mainController = $controller("mainController", {
$scope : $scope,
$http : $http,
appFactory : appFactoryMock
});
}));
//測試在這里....});
在這里,我將服務方法and.callFake(function(){.....})
為茉莉花間諜,並指定了應使用and.callFake(function(){.....})
執行的and.callFake(function(){.....})
。 創建了一個假工廠,並對其方法進行了監視。 我嘗試使用jasmine.createSpy創建類似於服務的偽造工廠,但return { getData : getData, foo : foo }
給出了錯誤。 因此,我做到了。
任何人,如果有更好的解決方案或其他解釋,請分享。
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