在寻找好的答案/样本一周后,我决定发布我的问题。
我需要知道如何编写和测试这样的代码的最佳方式:
Controller
// my.controller.js
(function () {
'use strict';
angular.module('myApp.myModule').controller('Awesome', Awesome);
function Awesome($http, $state, AwesomeService) {
var vm = this; // using 'controllerAs' style
vm.init = init;
vm.awesomeThingToDo = awesomeThingToDo;
vm.init();
function awesomeThingToDo() {
AwesomeService.awesomeThingToDo().then(function (data) {
vm.awesomeMessage = data.awesomeMessage;
});
}
function init() {
vm.awesomeThingToDo(); // Should be ready on page start
}
}
})();
服务
// my.service.js
(function () {
'use strict';
angular.module('myApp.myModule').factory('AwesomeService', AwesomeService);
function AwesomeService($resource, $http) {
var service = {
awesomeThingToDo: awesomeThingToDo
}
return service;
function awesomeThingToDo() {
var promise = $http.get("/my-backend/api/awesome").then(function (response) {
return response.data;
});
return promise;
}
}
})();
我的应用在这种结构下运行良好。我的服务单元测试也很好。 但是我不知道如何在 Controller 上进行单元测试。
我试过这样的:
规范
// my.controller.spec.js
(function () {
'use strict';
describe("Awesome Controller Tests", function() {
beforeEach(module('myApp.myModule'));
var vm, awesomeServiceMock;
beforeEach(function () {
awesomeServiceMock = { Is this a good (or the best) way to mock the service?
awesomeThingToDo: function() {
return {
then: function() {}
}
}
};
});
beforeEach(inject(function ($controller) {
vm = $controller('Awesome', {AwesomeService : awesomeServiceMock});
}));
it("Should return an awesome message", function () {
// I don't know another way do to it... :(
spyOn(awesomeServiceMock, "awesomeThingToDo").and.callFake(function() {
return {
then: function() {
vm.awesomeMessage = 'It is awesome!'; // <-- I think I shouldn't do this.
}
}
});
vm.awesomeThingToDo(); // Call to real controller method which should call the mock service method.
expect(vm.awesomeMessage).toEqual('It is awesome!'); // It works. But ONLY because I wrote the vm.awesomeMessage above.
});
});
})();
我的应用使用 Angular 1.2.28 和 Jasmine 2.1.3(带有 Grunt 和 Karma)。
更新:已解决!
it("Should return an awesome message", function () {
// Solved with callback parameter
spyOn(awesomeServiceMock, "awesomeThingToDo").and.callFake(function(callback) {
return {
then: function(callback) {
callback({awesomeMessage: 'It is awesome!'}); //callback call works fine! :D
}
}
});
最佳答案
我用一个可能的(坏的)解决方案更新了问题:
it("Should return an awesome message", function () {
// Solved with callback parameter
spyOn(awesomeServiceMock, "awesomeThingToDo").and.callFake(function(callback) {
return {
then: function(callback) {
callback({awesomeMessage: 'It is awesome!'}); //callback call works fine! :D
}
}
});
我使用回调来传递模拟参数并调用真正的实现。 :D
关于angularjs - 使用 Jasmine 测试 Angular Controller 对带有 Promise 返回的服务的调用的最佳方法,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/36266732/