小编Boo*_*onZ的帖子

我在测试 ActivatedRoute queryParams 订阅中的逻辑时遇到问题。

constructor(private router: Router, private route: ActivatedRoute, private auth: AuthService) {}

ngOnInit(): void {
  this.route.queryParams.subscribe((params:any) => {
    if(params['data']) {
      this.handle(params['data']);
    } else {
      if (this.auth.isAuthenticated()) {
        this.router.navigate(['/home']);
      }
    }
  });
}

我想测试：

• 如果提供this.handle()模拟时触发params['data']
• 如果没有PARAMS和this.auth.isAuthenticated()回报true是this.router.navigate被称为

我已经尝试了很多东西，但我的想法已经用完了。

我的测试文件：

describe('TestComponent', () => {
  let component: TestComponent;
  let fixture: ComponentFixture<TestComponent>;

  const mockService = {
    navigate: jasmine.createSpy('navigate'),
    isAuthenticated: jasmine.createSpy('isAuthenticated'),
    queryParams: jasmine.createSpy('queryParams')
  };

  beforeEach(async(() => {
    TestBed.configureTestingModule({
      declarations: [TestComponent],
      providers: [
        { provide: Router, …

我通过brew安装纱线到我的macOS 10.13,纱线工作得很好.当我尝试使用npm时出现问题.我尝试运行的每个命令都出现以下错误:

gregor-mbp:~ gregor$ npm -v
module.js:471
    throw err;
    ^

Error: Cannot find module 'number-is-nan'
    at Function.Module._resolveFilename (module.js:469:15)
    at Function.Module._load (module.js:417:25)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/usr/local/lib/node_modules/npm/node_modules/npmlog/node_modules/gauge/node_modules/string-width/node_modules/code-point-at/index.js:2:19)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)

我试图将这个数字 - 纳米模块安装为全球纱线,但没有成功.

现在我必须安装所有软件包并在yarn上运行脚本,这不错,但我的项目有脚本通过npm运行其他脚本:

package.json示例:

...
"scripts": {
  "start": "start-command",
  "build": "build-command",
  "development": "NODE_ENV=dev npm run build && npm run start",
  "production": "NODE_ENV=prod npm run build && npm run start"
},
...

当我运行时,yarn development …