我正在用 Angular 编写一个 spec.ts 文件并收到以下错误:
失败:非法状态:无法加载指令 AppComponent 的摘要。
下面是我尝试过的代码
import { TestBed, async } from "@angular/core/testing";
import { AppComponent } from "./app.component";
describe('AppComponent', () => {
beforeEach(() => {
TestBed.configureTestingModule({
declarations: [
AppComponent
],
});
});
});
it('should create the app', async(() => {
let fixture = TestBed.createComponent(AppComponent);
let app = fixture.debugElement.componentInstance;
expect(app).toBeTruthy();
}));``
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