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feat(router): exposes the fixture of the RouterTestingHarness #50280

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feat(router): exposes the fixture of the RouterTestingHarness #50280

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2 changes: 2 additions & 0 deletions goldens/public-api/router/testing/index.md
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@

import { ChildrenOutletContexts } from '@angular/router';
import { Compiler } from '@angular/core';
import { ComponentFixture } from '@angular/core/testing';
import { DebugElement } from '@angular/core';
import { ExtraOptions } from '@angular/router';
import * as i0 from '@angular/core';
Expand All @@ -26,6 +27,7 @@ import { UrlSerializer } from '@angular/router';
export class RouterTestingHarness {
static create(initialUrl?: string): Promise<RouterTestingHarness>;
detectChanges(): void;
readonly fixture: ComponentFixture<unknown>;
navigateByUrl(url: string): Promise<null | {}>;
navigateByUrl<T>(url: string, requiredRoutedComponentType: Type<T>): Promise<T>;
get routeDebugElement(): DebugElement | null;
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13 changes: 10 additions & 3 deletions packages/router/testing/src/router_testing_harness.ts
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Expand Up @@ -68,16 +68,23 @@ export class RouterTestingHarness {
return harness;
}

/**
* Fixture of the root component of the RouterTestingHarness
*/
public readonly fixture: ComponentFixture<unknown>;

/** @internal */
constructor(private readonly fixture: ComponentFixture<RootCmp>) {}
constructor(fixture: ComponentFixture<unknown>) {
this.fixture = fixture;
}

/** Instructs the root fixture to run change detection. */
detectChanges(): void {
this.fixture.detectChanges();
}
/** The `DebugElement` of the `RouterOutlet` component. `null` if the outlet is not activated. */
get routeDebugElement(): DebugElement|null {
const outlet = this.fixture.componentInstance.outlet;
const outlet = (this.fixture.componentInstance as RootCmp).outlet;
if (!outlet || !outlet.isActivated) {
return null;
}
Expand Down Expand Up @@ -136,7 +143,7 @@ export class RouterTestingHarness {
await router.navigateByUrl(url);
await redirectTrackingPromise;
this.fixture.detectChanges();
const outlet = this.fixture.componentInstance.outlet;
const outlet = (this.fixture.componentInstance as RootCmp).outlet;
// The outlet might not be activated if the user is testing a navigation for a guard that
// rejects
if (outlet && outlet.isActivated && outlet.activatedRoute.component) {
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