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/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import { ChangeDetectorRef, ComponentRef, DebugElement, ElementRef, NgZone } from '@angular/core';
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/**
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* Fixture for debugging and testing a component.
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*
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* @stable
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*/
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export declare class ComponentFixture<T> {
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componentRef: ComponentRef<T>;
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ngZone: NgZone | null;
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private _autoDetect;
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/**
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* The DebugElement associated with the root element of this component.
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*/
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debugElement: DebugElement;
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/**
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* The instance of the root component class.
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*/
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componentInstance: T;
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/**
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* The native element at the root of the component.
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*/
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nativeElement: any;
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/**
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* The ElementRef for the element at the root of the component.
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*/
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elementRef: ElementRef;
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/**
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* The ChangeDetectorRef for the component
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*/
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changeDetectorRef: ChangeDetectorRef;
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private _renderer;
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private _isStable;
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private _isDestroyed;
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private _resolve;
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private _promise;
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private _onUnstableSubscription;
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private _onStableSubscription;
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private _onMicrotaskEmptySubscription;
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private _onErrorSubscription;
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constructor(componentRef: ComponentRef<T>, ngZone: NgZone | null, _autoDetect: boolean);
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private _tick(checkNoChanges);
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/**
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* Trigger a change detection cycle for the component.
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*/
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detectChanges(checkNoChanges?: boolean): void;
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/**
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* Do a change detection run to make sure there were no changes.
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*/
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checkNoChanges(): void;
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/**
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* Set whether the fixture should autodetect changes.
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*
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* Also runs detectChanges once so that any existing change is detected.
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*/
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autoDetectChanges(autoDetect?: boolean): void;
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/**
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* Return whether the fixture is currently stable or has async tasks that have not been completed
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* yet.
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*/
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isStable(): boolean;
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/**
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* Get a promise that resolves when the fixture is stable.
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*
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* This can be used to resume testing after events have triggered asynchronous activity or
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* asynchronous change detection.
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*/
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whenStable(): Promise<any>;
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private _getRenderer();
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/**
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* Get a promise that resolves when the ui state is stable following animations.
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*/
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whenRenderingDone(): Promise<any>;
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/**
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* Trigger component destruction.
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*/
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destroy(): void;
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}
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