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import * as angular from 'angular' import 'angular-mocks' const app = angular.module('my-app',[]) app.directive('myDirective',() => ({ template: 'this does not work either',link: (scope,element) => { // have also tried compile fn console.log('This does not log') element.html('Hi!') } })) describe('myDirective',() => { var element,scope beforeEach(app) beforeEach(inject(($rootScope,$compilE) => { scope = $rootScope.$new() element = $compile('<my-directive />')(scopE) scope.$digest() })) it('should actually do something',() => { expect(element.html()).toEqual('Hi!') }) })
FAIL test/HtmlToPlaintextDirective.spec.js ● myDirective › should actually do something expect(received).toEqual(expected) Expected value to equal: "Hi!" Received: ""
挖掘事物看起来你正在遇到Babel / jest支持依赖于全局变量的浏览器脚本(如AngularJS)的一些魔力.
发生的事情是模块的角度变量与角度模拟可见的全局角度变量不同.
您可以通过在其中一个测试的顶部运行此操作来检查:
import * as angular from 'angular' import 'angular-mocks' console.log(angular === window.angular); // `false` in jest! console.log(angular.mock); // undefined console.log(window.angular.mock); // `{...}` defined
要解决此问题,您只需在测试中使用全局角度变量.
SRC / __ __测试/所有功能于one.test.js:
import "angular"; import "angular-mocks"; /* Work around jest's window/global mock magic. Use the global version of `angular` that has been augmented by angular-mocks. */ var angular = window.angular; export var app = angular.module('app',[]); app.directive('myDirective',() => ({ link: (scope,element) => { console.log('This does log'); scope.content = 'Hi!'; },template: 'content: {{Content}}' })); describe('myDirective',function(){ var element; var scope; beforeEach(function(){ angular.mock.module(app.Name); }); it('should do something',function(){ inject(function( $rootScope,$compile ){ scope = $rootScope.$new(); element = $compile('<my-directive></my-directive>')(scopE); scope.$digest(); }); expect(element.html()).toEqual('content: Hi!'); }); });
原始答案:(这很有效,因为我在测试中偶然使用了角度的全局版本.)
测试中的Angular模块未在测试中正确初始化.
相反,您需要使用angular.mock.module(“modulename”)来初始化您的模块.
describe('myDirective',scope // You need to pass the module name to `angular.mock.module()` beforeEach(function(){ angular.mock.module(app.Name); }); // Then you can set up and run your tests as normal: beforeEach(inject(($rootScope,$compilE) => { scope = $rootScope.$new() element = $compile('<my-directive></my-directive>')(scopE) scope.$digest() })) it('should actually do something',() => { expect(element.html()).toEqual('Hi!') }) });
然后你的测试按我的预期工作:
PASS src\__test__\app.test.js myDirective √ should do something (46ms)
作为参考,这是完整的应用程序和测试:
SRC /应用/ app.module.js:
import * as angular from 'angular' export var app = angular.module('app',template: 'content: {{Content}}' }))
SRC / __测试__ / app.test.js:
import {app} from "../app/app.module"; import "angular-mocks"; describe('myDirective',function(){ var element; var scope; beforeEach(function(){ angular.mock.module(app.Name); }); beforeEach(inject(function( $rootScope,$compile ){ scope = $rootScope.$new(); element = $compile('<my-directive></my-directive>')(scopE); scope.$digest(); })); it('should do something',function(){ expect(element.html()).toEqual('content: Hi!'); }); });
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