测试失败后，角2 RC5

Question

我在测试中使用了以下格式：

​

export function main() {
    describe('Angular2 component test', function() {
         it('should initialize component',
           async(inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
              var template = '<specific-component-tag>';
                return tcb.overrideTemplate(TestComponent, template)
                .createAsync(TestComponent)
                .then((fixture) => {
                    expect(fixture.componentInstance.viewChild).toBeDefined();
                    fixture.detectChanges();
                    expect(fixture.componentInstance.viewChild.items.length).toBe(1);
                    // .... etc.
                }).catch (reason => {
                    console.log(reason);
                    return Promise.reject(reason);
                });
         })));
      });
}

这在RC4中很好。但是RC5突然出现了，现在这段代码已经不能工作了。它会抛出以下错误：

​

​

Module ".... @angular/core/testing" has no exported member 'it'.
Module ".... @angular/core/testing" has no exported member 'describe'.
Module ".... @angular/core/testing" has no exported member 'expect'.
Module ".... @angular/core/testing" has no exported member 'beforeEachProviders'.
Module ".... @angular/compiler/testing" has no exported member 'TestComponentBuilder'.
Module ".... @angular/compiler/testing" has no exported member 'ComponentFixture'.

​

请帮助我将这个测试迁移到angular2 RC5。

更新:我已经读过RC5 release notes，但是我没有想到如何实现我的目标。

Answer 1

通过@角形/核心/测试可获得的茉莉花进口将被删除。因此，删除下列导入

在此之前：

import {
  beforeEach,
  beforeEachProviders,
  describe,
  expect,
  it,
  inject,
} from '@angular/core/testing';

之后

/// <reference path="../../../typings/main/ambient/jasmine/index.d.ts" />
import {
  inject, addProviders
} from '@angular/core/testing';

引用路径应该是文件中的第一行，它应该指向jasmine类型定义文件。(更新相关信息。即.././ to任何东西)以获得茉莉花类型的检查，在ambientDevDependencies中添加下面一行。我的看上去像这样

{
  "ambientDevDependencies": {
    "angular-protractor": "registry:dt/angular-protractor#1.5.0+20160425143459",
    "jasmine": "registry:dt/jasmine#2.2.0+20160412134438",
    "selenium-webdriver": "registry:dt/selenium-webdriver#2.44.0+20160317120654"
  },
  "ambientDependencies": {
    "es6-shim": "registry:dt/es6-shim#0.31.2+20160317120654"
  }
}

也变了

  beforeEachProviders(() => [InMemoryDataService]);

至

import { TestBed } from '@angular/core/testing';
...
describe('...', () => {
  TestBed.configureTestingModule({
    providers: [ InMemoryDataService ]
  });
  it(...);
});

Answer 2

看看changelog：https://github.com/angular/angular/blob/master/CHANGELOG.md

它看起来像API，您正在使用的是不推荐的-路径和名称已经改变。:)

例如：

• TestComponentBuilder和ComponentFixture现在正在进行@ar角/core/testing，
• beforeEachProviders：

代码：

beforeEachProviders(() => [MyService]);

改为：

beforeEach(() => {
    addProviders([MyService]);
});

Answer 3

如果你已经看过他们的释放通知书。在测试API包方面有很多变化。

https://github.com/angular/angular/blob/master/CHANGELOG.md#breaking-changes

因此，我还没有尝试将测试迁移到RC5。但我找到了关于更改新测试API的链接。

https://ng2-info.github.io/2016/08/angular-2-rc-5/#テスティングapiに関する変更

希望能帮上忙。