angular-cn/packages/core/test/directive_lifecycle_integra...

103 lines
2.6 KiB
TypeScript

/**
* @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 {AfterContentChecked, AfterContentInit, AfterViewChecked, AfterViewInit, DoCheck, OnChanges, OnInit} from '@angular/core';
import {Component, Directive} from '@angular/core/src/metadata';
import {inject, TestBed} from '@angular/core/testing';
import {Log} from '@angular/core/testing/src/testing_internal';
describe('directive lifecycle integration spec', () => {
let log: Log;
beforeEach(() => {
TestBed
.configureTestingModule({
declarations: [
LifecycleCmp,
LifecycleDir,
MyComp5,
],
providers: [Log]
})
.overrideComponent(MyComp5, {set: {template: '<div [field]="123" lifecycle></div>'}});
});
beforeEach(inject([Log], (_log: any) => {
log = _log;
}));
it('should invoke lifecycle methods ngOnChanges > ngOnInit > ngDoCheck > ngAfterContentChecked',
() => {
const fixture = TestBed.createComponent(MyComp5);
fixture.detectChanges();
expect(log.result())
.toEqual(
'ngOnChanges; ngOnInit; ngDoCheck; ngAfterContentInit; ngAfterContentChecked; child_ngDoCheck; ' +
'ngAfterViewInit; ngAfterViewChecked');
log.clear();
fixture.detectChanges();
expect(log.result())
.toEqual('ngDoCheck; ngAfterContentChecked; child_ngDoCheck; ngAfterViewChecked');
});
});
@Directive({selector: '[lifecycle-dir]'})
class LifecycleDir implements DoCheck {
constructor(private _log: Log) {}
ngDoCheck() {
this._log.add('child_ngDoCheck');
}
}
@Component({
selector: '[lifecycle]',
inputs: ['field'],
template: `<div lifecycle-dir></div>`,
})
class LifecycleCmp implements OnChanges, OnInit, DoCheck, AfterContentInit, AfterContentChecked,
AfterViewInit, AfterViewChecked {
field: any /** TODO #9100 */;
constructor(private _log: Log) {}
ngOnChanges(_: any /** TODO #9100 */) {
this._log.add('ngOnChanges');
}
ngOnInit() {
this._log.add('ngOnInit');
}
ngDoCheck() {
this._log.add('ngDoCheck');
}
ngAfterContentInit() {
this._log.add('ngAfterContentInit');
}
ngAfterContentChecked() {
this._log.add('ngAfterContentChecked');
}
ngAfterViewInit() {
this._log.add('ngAfterViewInit');
}
ngAfterViewChecked() {
this._log.add('ngAfterViewChecked');
}
}
@Component({selector: 'my-comp'})
class MyComp5 {
}