angular-cn/packages/platform-browser/animations/test/noop_animations_module_spec.ts

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/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {animate, style, transition, trigger} from '@angular/animations';
import {ɵAnimationEngine, ɵNoopAnimationEngine} from '@angular/animations/browser';
import {Component} from '@angular/core';
import {TestBed} from '@angular/core/testing';
import {NoopAnimationsModule} from '../src/module';
export function main() {
describe('NoopAnimationsModule', () => {
beforeEach(() => { TestBed.configureTestingModule({imports: [NoopAnimationsModule]}); });
it('the engine should be a Noop engine', () => {
const engine = TestBed.get(ɵAnimationEngine);
expect(engine instanceof ɵNoopAnimationEngine).toBeTruthy();
});
it('should flush and fire callbacks when the zone becomes stable', (async) => {
@Component({
selector: 'my-cmp',
template:
'<div [@myAnimation]="exp" (@myAnimation.start)="onStart($event)" (@myAnimation.done)="onDone($event)"></div>',
animations: [trigger(
'myAnimation',
[transition(
'* => state', [style({'opacity': '0'}), animate(500, style({'opacity': '1'}))])])],
})
class Cmp {
exp: any;
startEvent: any;
doneEvent: any;
onStart(event: any) { this.startEvent = event; }
onDone(event: any) { this.doneEvent = event; }
}
TestBed.configureTestingModule({declarations: [Cmp]});
const fixture = TestBed.createComponent(Cmp);
const cmp = fixture.componentInstance;
cmp.exp = 'state';
fixture.detectChanges();
fixture.whenStable().then(() => {
expect(cmp.startEvent.triggerName).toEqual('myAnimation');
expect(cmp.startEvent.phaseName).toEqual('start');
expect(cmp.doneEvent.triggerName).toEqual('myAnimation');
expect(cmp.doneEvent.phaseName).toEqual('done');
async();
});
});
it('should handle leave animation callbacks even if the element is destroyed in the process',
(async) => {
@Component({
selector: 'my-cmp',
template:
'<div *ngIf="exp" @myAnimation (@myAnimation.start)="onStart($event)" (@myAnimation.done)="onDone($event)"></div>',
animations: [trigger(
'myAnimation',
[transition(
':leave', [style({'opacity': '0'}), animate(500, style({'opacity': '1'}))])])],
})
class Cmp {
exp: any;
startEvent: any;
doneEvent: any;
onStart(event: any) { this.startEvent = event; }
onDone(event: any) { this.doneEvent = event; }
}
TestBed.configureTestingModule({declarations: [Cmp]});
const engine = TestBed.get(ɵAnimationEngine);
const fixture = TestBed.createComponent(Cmp);
const cmp = fixture.componentInstance;
cmp.exp = true;
fixture.detectChanges();
cmp.startEvent = null;
cmp.doneEvent = null;
cmp.exp = false;
fixture.detectChanges();
fixture.whenStable().then(() => {
expect(cmp.startEvent.triggerName).toEqual('myAnimation');
expect(cmp.startEvent.phaseName).toEqual('start');
expect(cmp.startEvent.toState).toEqual('void');
expect(cmp.doneEvent.triggerName).toEqual('myAnimation');
expect(cmp.doneEvent.phaseName).toEqual('done');
expect(cmp.doneEvent.toState).toEqual('void');
async();
});
});
});
}