ComponentFixture
class
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 }
Constructor
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componentRef |
ComponentRef |
|
ngZone |
NgZone |
|
_autoDetect |
boolean |
Properties
Property | Description |
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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> |
Declared in Constructor |
ngZone: NgZone | null |
Declared in Constructor |
Methods
detectChanges()
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Trigger a change detection cycle for the component. |
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checkNoChanges |
boolean |
Optional. Default is |
Returns
void
checkNoChanges()
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Do a change detection run to make sure there were no changes. |
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autoDetectChanges()
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Set whether the fixture should autodetect changes. |
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autoDetect |
boolean |
Optional. Default is |
Also runs detectChanges once so that any existing change is detected.
isStable()
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Return whether the fixture is currently stable or has async tasks that have not been completed yet. |
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whenStable()
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Get a promise that resolves when the fixture is stable. |
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This can be used to resume testing after events have triggered asynchronous activity or asynchronous change detection. |
whenRenderingDone()
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Get a promise that resolves when the ui state is stable following animations. |
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destroy()
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Trigger component destruction. |
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Licensed under the Creative Commons Attribution License 4.0.
https://v11.angular.io/api/core/testing/ComponentFixture