ComponentFixture
Fixture for debugging and testing a component.
class ComponentFixture<T> {
constructor(componentRef: ComponentRef<T>, ngZone: NgZone, _autoDetect: boolean)
debugElement: DebugElement
componentInstance: T
nativeElement: any
elementRef: ElementRef
changeDetectorRef: ChangeDetectorRef
componentRef: ComponentRef<T>
ngZone: NgZone | null
detectChanges(checkNoChanges: boolean = true): void
checkNoChanges(): void
autoDetectChanges(autoDetect: boolean = true)
isStable(): boolean
whenStable(): Promise<any>
whenRenderingDone(): Promise<any>
destroy(): void
}
构造函数
参数
|
属性
| 属性 | 说明 |
|---|---|
debugElement: DebugElement | The DebugElement associated with the root element of this component. |
componentInstance: T | The instance of the root component class. |
nativeElement: any | The native element at the root of the component. |
elementRef: ElementRef | The ElementRef for the element at the root of the component. |
changeDetectorRef: ChangeDetectorRef | The ChangeDetectorRef for the component |
componentRef: ComponentRef<T> | 声明于构造函数中 |
ngZone: NgZone | null | 声明于构造函数中 |
方法
Trigger a change detection cycle for the component. |
Do a change detection run to make sure there were no changes. |
参数没有参数。 返回值
|
Set whether the fixture should autodetect changes. |
Also runs detectChanges once so that any existing change is detected. |
Return whether the fixture is currently stable or has async tasks that have not been completed yet. |
参数没有参数。 返回值
|
Get a promise that resolves when the fixture is stable. |
参数没有参数。 返回值
|
This can be used to resume testing after events have triggered asynchronous activity or asynchronous change detection. |
Get a promise that resolves when the ui state is stable following animations. |
参数没有参数。 返回值
|
Trigger component destruction. |
参数没有参数。 返回值
|
