【发布时间】:2017-03-20 09:18:41
【问题描述】:
我正在尝试在我现有的项目中引入测试,但我一直遇到同样的错误,我认为这会阻止我运行测试。我得到的错误是
.../src/app/dashboard.component.spec.ts (15,13) 中的错误:找不到名称“HTMLElement”。)
Chrome 57.0.2987 (Mac OS X 10.12.3):执行 4 次成功 4 次(7.24 秒 / 6.55 秒)
我的 dashboard.component.spec.ts 看起来像这样:
import { async, ComponentFixture, TestBed } from '@angular/core/testing';
import { By } from '@angular/platform-browser';
import { DebugElement } from '@angular/core';
import { DashboardComponent } from './dashboard.component';
import { ExchangeService } from './exchange.service';
describe('DashboardComponent (templateUrl)', () => {
let comp: DashboardComponent;
let fixture: ComponentFixture<DashboardComponent>;
let spy: jasmine.Spy;
let de: DebugElement;
let el: HTMLElement; // how does this work...?
let exchangeService: ExchangeService; // the actual injected service
const testExchange = 'New York Stock Exchange';
beforeEach(async(() => {
TestBed.configureTestingModule({
declarations: [ DashboardComponent ],
providers: [ ExchangeService ],
})
.compileComponents();
}))
beforeEach(() => {
fixture = TestBed.createComponent(DashboardComponent);
comp = fixture.componentInstance; // DashboardComponent test componentInstance
// ClockService actually injected into the component
exchangeService = fixture.debugElement.injector.get(ExchangeService);
// Setup spy on the `getExchanges` method
spy = spyOn(exchangeService, 'getExchanges')
.and.returnValue(Promise.resolve(testExchange));
// query for the title <h1> by CSS element selector
de = fixture.debugElement.query(By.css('.exchange'));
el = de.nativeElement;
});
it('should not show exchange before OnInit', () => {
expect(el.textContent).toBe('', 'nothing displayed');
expect(spy.calls.any()).toBe(false, 'getExchanges not yet called');
});
it('true is true', () => expect(false).toBe(true));
});
我已经四处搜索该错误消息,但我似乎无法在任何地方找到它。此外,最后一个测试应该失败,但我认为它甚至不会因为这个错误而编译。关于什么是错的任何线索?我最初认为这将是我缺少的导入,但我看不到其他任何人导入 HTMLElements。谢谢!
编辑: 我的 tsconfig.json 看起来像这样:
{
"compileOnSave": false,
"compilerOptions": {
"outDir": "./dist/out-tsc",
"sourceMap": true,
"declaration": false,
"moduleResolution": "node",
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"target": "es5",
"lib": [
"es6",
"dom",
"es2015.iterable"
]
}
}
编辑 2: 实际上,我必须按 Ctrl+C,然后重新启动测试才能正确编译(我认为它会在更改文件时执行此操作,但事实并非如此)。谢谢!
【问题讨论】:
标签: angular jasmine karma-jasmine angular2-testing