angular-cn/packages/platform-browser/animations/test/animation_renderer_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 {AnimationPlayer, AnimationTriggerMetadata, animate, state, style, transition, trigger} from '@angular/animations';
import {ɵAnimationEngine as AnimationEngine} from '@angular/animations/browser';
import {Component, Injectable, NgZone, RendererFactory2, RendererType2, ViewChild} from '@angular/core';
import {TestBed} from '@angular/core/testing';
import {BrowserAnimationsModule, ɵAnimationRendererFactory as AnimationRendererFactory, ɵInjectableAnimationEngine as InjectableAnimationEngine} from '@angular/platform-browser/animations';
import {DomRendererFactory2} from '@angular/platform-browser/src/dom/dom_renderer';
import {el} from '../../testing/src/browser_util';
(function() {
if (isNode) return;
describe('AnimationRenderer', () => {
let element: any;
beforeEach(() => {
element = el('<div></div>');
TestBed.configureTestingModule({
providers: [{provide: AnimationEngine, useClass: MockAnimationEngine}],
imports: [BrowserAnimationsModule]
});
});
function makeRenderer(animationTriggers: any[] = []) {
const type = <RendererType2>{
id: 'id',
encapsulation: null !,
styles: [],
data: {'animation': animationTriggers}
};
return (TestBed.get(RendererFactory2) as AnimationRendererFactory)
.createRenderer(element, type);
}
it('should hook into the engine\'s insert operations when appending children', () => {
const renderer = makeRenderer();
const engine = TestBed.get(AnimationEngine) as MockAnimationEngine;
const container = el('<div></div>');
renderer.appendChild(container, element);
expect(engine.captures['onInsert'].pop()).toEqual([element]);
});
it('should hook into the engine\'s insert operations when inserting a child before another',
() => {
const renderer = makeRenderer();
const engine = TestBed.get(AnimationEngine) as MockAnimationEngine;
const container = el('<div></div>');
const element2 = el('<div></div>');
container.appendChild(element2);
renderer.insertBefore(container, element, element2);
expect(engine.captures['onInsert'].pop()).toEqual([element]);
});
it('should hook into the engine\'s insert operations when removing children', () => {
const renderer = makeRenderer();
const engine = TestBed.get(AnimationEngine) as MockAnimationEngine;
const container = el('<div></div>');
renderer.removeChild(container, element);
expect(engine.captures['onRemove'].pop()).toEqual([element]);
});
it('should hook into the engine\'s setProperty call if the property begins with `@`', () => {
const renderer = makeRenderer();
const engine = TestBed.get(AnimationEngine) as MockAnimationEngine;
renderer.setProperty(element, 'prop', 'value');
expect(engine.captures['setProperty']).toBeFalsy();
renderer.setProperty(element, '@prop', 'value');
expect(engine.captures['setProperty'].pop()).toEqual([element, 'prop', 'value']);
});
describe('listen', () => {
it('should hook into the engine\'s listen call if the property begins with `@`', () => {
const renderer = makeRenderer();
const engine = TestBed.get(AnimationEngine) as MockAnimationEngine;
const cb = (event: any): boolean => { return true; };
renderer.listen(element, 'event', cb);
expect(engine.captures['listen']).toBeFalsy();
renderer.listen(element, '@event.phase', cb);
expect(engine.captures['listen'].pop()).toEqual([element, 'event', 'phase']);
});
it('should resolve the body|document|window nodes given their values as strings as input',
() => {
const renderer = makeRenderer();
const engine = TestBed.get(AnimationEngine) as MockAnimationEngine;
const cb = (event: any): boolean => { return true; };
renderer.listen('body', '@event', cb);
expect(engine.captures['listen'].pop()[0]).toBe(document.body);
renderer.listen('document', '@event', cb);
expect(engine.captures['listen'].pop()[0]).toBe(document);
renderer.listen('window', '@event', cb);
expect(engine.captures['listen'].pop()[0]).toBe(window);
});
});
describe('registering animations', () => {
it('should only create a trigger definition once even if the registered multiple times');
});
describe('flushing animations', () => {
// these tests are only mean't to be run within the DOM
if (isNode) return;
it('should flush and fire callbacks when the zone becomes stable', (async) => {
@Component({
selector: 'my-cmp',
template: '<div [@myAnimation]="exp" (@myAnimation.start)="onStart($event)"></div>',
animations: [trigger(
'myAnimation',
[transition(
'* => state',
[style({'opacity': '0'}), animate(500, style({'opacity': '1'}))])])],
})
class Cmp {
exp: any;
event: any;
onStart(event: any) { this.event = event; }
}
TestBed.configureTestingModule({
providers: [{provide: AnimationEngine, useClass: InjectableAnimationEngine}],
declarations: [Cmp]
});
const engine = TestBed.get(AnimationEngine);
const fixture = TestBed.createComponent(Cmp);
const cmp = fixture.componentInstance;
cmp.exp = 'state';
fixture.detectChanges();
fixture.whenStable().then(() => {
expect(cmp.event.triggerName).toEqual('myAnimation');
expect(cmp.event.phaseName).toEqual('start');
cmp.event = null;
engine.flush();
expect(cmp.event).toBeFalsy();
async();
});
});
it('should properly insert/remove nodes through the animation renderer that do not contain animations',
(async) => {
@Component({
selector: 'my-cmp',
template: '<div #elm *ngIf="exp"></div>',
animations: [trigger(
'someAnimation',
[transition(
'* => *', [style({'opacity': '0'}), animate(500, style({'opacity': '1'}))])])],
})
class Cmp {
exp: any;
@ViewChild('elm') public element: any;
}
TestBed.configureTestingModule({
providers: [{provide: AnimationEngine, useClass: InjectableAnimationEngine}],
declarations: [Cmp]
});
const fixture = TestBed.createComponent(Cmp);
const cmp = fixture.componentInstance;
cmp.exp = true;
fixture.detectChanges();
fixture.whenStable().then(() => {
cmp.exp = false;
const element = cmp.element;
expect(element.nativeElement.parentNode).toBeTruthy();
fixture.detectChanges();
fixture.whenStable().then(() => {
expect(element.nativeElement.parentNode).toBeFalsy();
async();
});
});
});
it('should only queue up dom removals if the element itself contains a valid leave animation',
() => {
@Component({
selector: 'my-cmp',
template: `
<div #elm1 *ngIf="exp1"></div>
<div #elm2 @animation1 *ngIf="exp2"></div>
<div #elm3 @animation2 *ngIf="exp3"></div>
`,
animations: [
trigger('animation1', [transition('a => b', [])]),
trigger('animation2', [transition(':leave', [])]),
]
})
class Cmp {
exp1: any = true;
exp2: any = true;
exp3: any = true;
@ViewChild('elm1') public elm1: any;
@ViewChild('elm2') public elm2: any;
@ViewChild('elm3') public elm3: any;
}
TestBed.configureTestingModule({
providers: [{provide: AnimationEngine, useClass: InjectableAnimationEngine}],
declarations: [Cmp]
});
const engine = TestBed.get(AnimationEngine);
const fixture = TestBed.createComponent(Cmp);
const cmp = fixture.componentInstance;
fixture.detectChanges();
const elm1 = cmp.elm1;
const elm2 = cmp.elm2;
const elm3 = cmp.elm3;
assertHasParent(elm1);
assertHasParent(elm2);
assertHasParent(elm3);
engine.flush();
finishPlayers(engine.players);
cmp.exp1 = false;
fixture.detectChanges();
assertHasParent(elm1, false);
assertHasParent(elm2);
assertHasParent(elm3);
engine.flush();
expect(engine.players.length).toEqual(0);
cmp.exp2 = false;
fixture.detectChanges();
assertHasParent(elm1, false);
assertHasParent(elm2, false);
assertHasParent(elm3);
engine.flush();
expect(engine.players.length).toEqual(0);
cmp.exp3 = false;
fixture.detectChanges();
assertHasParent(elm1, false);
assertHasParent(elm2, false);
assertHasParent(elm3);
engine.flush();
expect(engine.players.length).toEqual(1);
});
});
});
describe('AnimationRendererFactory', () => {
beforeEach(() => {
TestBed.configureTestingModule({
providers: [{
provide: RendererFactory2,
useClass: ExtendedAnimationRendererFactory,
deps: [DomRendererFactory2, AnimationEngine, NgZone]
}],
imports: [BrowserAnimationsModule]
});
});
it('should provide hooks at the start and end of change detection', () => {
@Component({
selector: 'my-cmp',
template: `
<div [@myAnimation]="exp"></div>
`,
animations: [trigger('myAnimation', [])]
})
class Cmp {
public exp: any;
}
TestBed.configureTestingModule({
providers: [{provide: AnimationEngine, useClass: InjectableAnimationEngine}],
declarations: [Cmp]
});
const renderer = TestBed.get(RendererFactory2) as ExtendedAnimationRendererFactory;
const fixture = TestBed.createComponent(Cmp);
const cmp = fixture.componentInstance;
renderer.log = [];
fixture.detectChanges();
expect(renderer.log).toEqual(['begin', 'end']);
renderer.log = [];
fixture.detectChanges();
expect(renderer.log).toEqual(['begin', 'end']);
});
});
})();
@Injectable()
class MockAnimationEngine extends InjectableAnimationEngine {
captures: {[method: string]: any[]} = {};
triggers: AnimationTriggerMetadata[] = [];
private _capture(name: string, args: any[]) {
const data = this.captures[name] = this.captures[name] || [];
data.push(args);
}
registerTrigger(componentId: string, namespaceId: string, trigger: AnimationTriggerMetadata) {
this.triggers.push(trigger);
}
onInsert(namespaceId: string, element: any): void { this._capture('onInsert', [element]); }
onRemove(namespaceId: string, element: any, domFn: () => any): void {
this._capture('onRemove', [element]);
}
process(namespaceId: string, element: any, property: string, value: any): boolean {
this._capture('setProperty', [element, property, value]);
return true;
}
listen(
namespaceId: string, element: any, eventName: string, eventPhase: string,
callback: (event: any) => any): () => void {
// we don't capture the callback here since the renderer wraps it in a zone
this._capture('listen', [element, eventName, eventPhase]);
return () => {};
}
flush() {}
destroy(namespaceId: string) {}
}
@Injectable()
class ExtendedAnimationRendererFactory extends AnimationRendererFactory {
public log: string[] = [];
begin() {
super.begin();
this.log.push('begin');
}
end() {
super.end();
this.log.push('end');
}
}
function assertHasParent(element: any, yes: boolean = true) {
const parent = element.nativeElement.parentNode;
if (yes) {
expect(parent).toBeTruthy();
} else {
expect(parent).toBeFalsy();
}
}
function finishPlayers(players: AnimationPlayer[]) {
players.forEach(player => player.finish());
}