[英]Angular 2 Testing: Get Value from ngModel
我正在嘗試編寫一個對Angular的ngModel
屬性進行斷言的測試。 在這一點上,我可以輕松地測試標簽。 但是,我無法從ngModel
選擇值
問題從
ngModel
獲得價值的最佳方法是什么?
HTML:
<div name="customerName">
<label>Customer Name: </label>
<div>
<input type="text" class="form-control" [ngModel]="customer.name" asInline disabled />
</div>
</div>
測試
it('bindings', () => {
fixture = TestBed.createComponent(CustomerComponent);
fixture.detectChanges();
// this works
expect(fixture.debugElement.nativeElement.querySelector('[name=customerName] label').textContent).toEqual('Customer Name: ');
// this assert fails
expect(fixture.debugElement.nativeElement.querySelector('[name=customerName] div input').value).toEqual('Bobby Tables');
});
與whenStable
一起使用async
it('should recognize a timepicker', async(() => {
fixture = TestBed.createComponent(ExampleComponent);
fixture.detectChanges();
fixture.whenStable().then(() => {
expect(fixture.debugElement.nativeElement.querySelector('[name=customerName] label').textContent).toEqual('Customer Name: ');
expect(fixture.debugElement.nativeElement.querySelector('[name=customerName] div input').value).toEqual('Bobby Tables');
});
}));
或帶有tick
fakeAsync
:
it('should recognize a timepicker', fakeAsync(() => {
fixture = TestBed.createComponent(ExampleComponent);
fixture.detectChanges();
tick();
expect(fixture.debugElement.nativeElement.querySelector('[name=customerName] label').textContent).toEqual('Customer Name: ');
expect(fixture.debugElement.nativeElement.querySelector('[name=customerName] div input').value).toEqual('Bobby Tables');
}));
並且不要忘記導入FormsModule
:
TestBed.configureTestingModule({
imports: [FormsModule],
...
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.