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feat(animations): support :increment and :decrement transition aliases

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This commit is contained in:
Matias Niemelä
2017-07-07 09:10:10 -07:00
committed by Alex Rickabaugh
parent 65c9e13105
commit 6f45519d6f
3 changed files with 182 additions and 4 deletions
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92
packages/core/test/animation/animation_integration_spec.ts
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@ -1541,6 +1541,98 @@ export function main() {
const players = getLog();
expect(players.length).toEqual(2);
});
describe('transition aliases', () => {
describe(':increment', () => {
it('should detect when a value has incremented', () => {
@Component({
selector: 'if-cmp',
template: `
<div [@myAnimation]="exp"></div>
`,
animations: [
trigger(
'myAnimation',
[
transition(
':increment',
[
animate(1234, style({background: 'red'})),
]),
]),
]
})
class Cmp {
exp: number = 0;
}
TestBed.configureTestingModule({declarations: [Cmp]});
const fixture = TestBed.createComponent(Cmp);
const cmp = fixture.componentInstance;
fixture.detectChanges();
let players = getLog();
expect(players.length).toEqual(0);
cmp.exp++;
fixture.detectChanges();
players = getLog();
expect(players.length).toEqual(1);
expect(players[0].duration).toEqual(1234);
resetLog();
cmp.exp = 5;
fixture.detectChanges();
players = getLog();
expect(players.length).toEqual(1);
expect(players[0].duration).toEqual(1234);
});
});
describe(':decrement', () => {
it('should detect when a value has decremented', () => {
@Component({
selector: 'if-cmp',
template: `
<div [@myAnimation]="exp"></div>
`,
animations: [
trigger(
'myAnimation',
[
transition(
':decrement',
[
animate(1234, style({background: 'red'})),
]),
]),
]
})
class Cmp {
exp: number = 5;
}
TestBed.configureTestingModule({declarations: [Cmp]});
const fixture = TestBed.createComponent(Cmp);
const cmp = fixture.componentInstance;
fixture.detectChanges();
let players = getLog();
expect(players.length).toEqual(0);
cmp.exp--;
fixture.detectChanges();
players = getLog();
expect(players.length).toEqual(1);
expect(players[0].duration).toEqual(1234);
resetLog();
cmp.exp = 0;
fixture.detectChanges();
players = getLog();
expect(players.length).toEqual(1);
expect(players[0].duration).toEqual(1234);
});
});
});
});
describe('animation listeners', () => {