如何一个测试角2摩卡？

Question

我一直在敲我的头这几天，只是不能取得任何进展。我正在尝试用摩卡来测试我的角2个应用程序（SystemJS为基础，如果它事项），我只是可以” W图如何获得控制器的实例。

我想我可以拿出最简单的情况;

import {bootstrap} from 'angular2/platform/browser';
import {App} from '../app/app';
import {Type} from 'angular2/core';

describe('Login', () => {
    let app:App;

    beforeEach((done) => {
        console.log(bootstrap);
        bootstrap(<Type>App)
            .then(result => result.instance)
            .then(instance => {
                app = instance;
                done();
            });
    });

    it('Test for App to Exist', (done) => {
        console.log(app);
        done();
    });
});

尽我所能知道的，不知何故console.log(bootstrap)失败，因为我一饮而尽，摩卡任务刚刚去世（默默）。注释掉引导引用只是做一个虚拟测试;

import {bootstrap} from 'angular2/platform/browser';
import {App} from '../app/app';
import {Type} from 'angular2/core';

describe('Login', () => {
    let app:App;

    beforeEach((done) => {
        done();
    });

    it('Test for App to Exist', (done) => {
        console.log(app);
        done();
    });
});

日志，因为我期望的undefined。有没有人成功地得到这样的工作吗？这里的目标是单元测试控制器，所以我真的已经很努力避免phantomJS / webdriver的/等。

Answer 1

我认为，摩卡可以，因为它在节点运行只（也许这将有可能Angular2普及，当你只是渲染HTML字符串服务器端）不能直接使用。话虽这么说，你可以使用mochify这是摩卡与在后台使用browserify。我正在为安装一个example project。

然后测试可以是这个样子：

// import everything needed for to run Angular (we're running in PhantomJS by defualt but other browsers are possible too)
import "es6-shim";
import "es6-promise";
import "zone.js";
import "rxjs";
import "reflect-metadata";

import "../../typings/browser.d.ts";

import {Injector, enableProdMode} from "angular2/core";
import {HTTP_PROVIDERS} from "angular2/http";


// import stuff we need to instantiate component
import GithubComponent from "./gihub-component";
import GithubService from "./github-service";
import Config from "../config";

import * as sinon from "sinon";

enableProdMode();

describe("github-component", () => {

    let injector: Injector;
    let component: any;
    let service: any;

    beforeEach(() => {
        // instantiate Angular 2 DI context
        injector = Injector.resolveAndCreate([
            HTTP_PROVIDERS,
            GithubComponent,
            GithubService,
            Config
        ]);
        component = injector.get(GithubComponent);
        service = injector.get(GithubService);
        sinon.spy(service, "getRepos");
    });

    afterEach(() => {
        service.getRepos.restore();
    });

    it("searches for repository", () => {
        component.query.updateValue("test");

        return setTimeout(() => {
            sinon.assert.calledOnce(service.getRepos);
            sinon.assert.calledWith(service.getRepos, "test");
        }, 300);
    });

});