angular-cn/packages/animations/test/animation_group_player_spec.ts

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/**
* @license
* Copyright Google LLC 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 {fakeAsync} from '@angular/core/testing';
import {NoopAnimationPlayer} from '../src/animations';
import {AnimationGroupPlayer} from '../src/players/animation_group_player';
describe('AnimationGroupPlayer', () => {
it('should getPosition of an empty group', fakeAsync(() => {
const players: NoopAnimationPlayer[] = [];
const groupPlayer = new AnimationGroupPlayer(players);
expect(groupPlayer.getPosition()).toBe(0);
}));
it('should getPosition of a single player in a group', fakeAsync(() => {
const player = new NoopAnimationPlayer(5, 5);
player.setPosition(0.2);
const players = [player];
const groupPlayer = new AnimationGroupPlayer(players);
expect(groupPlayer.getPosition()).toBe(0.2);
}));
it('should getPosition based on the longest player in the group', fakeAsync(() => {
const longestPlayer = new NoopAnimationPlayer(5, 5);
longestPlayer.setPosition(0.2);
const players = [
new NoopAnimationPlayer(1, 4),
new NoopAnimationPlayer(4, 1),
new NoopAnimationPlayer(7, 0),
longestPlayer,
new NoopAnimationPlayer(1, 1),
];
const groupPlayer = new AnimationGroupPlayer(players);
expect(groupPlayer.getPosition()).toBe(0.2);
}));
});