angular-docs-cn/modules/@angular/compiler/test/directive_lifecycle_spec.ts

145 lines
4.6 KiB
TypeScript

/**
* @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 {beforeEach, xdescribe, ddescribe, describe, expect, iit, inject, it,} from '@angular/core/testing/testing_internal';
import {hasLifecycleHook} from '@angular/compiler/src/directive_lifecycle_reflector';
import {LifecycleHooks} from '@angular/core/src/metadata/lifecycle_hooks';
export function main() {
describe('Create DirectiveMetadata', () => {
describe('lifecycle', () => {
describe('ngOnChanges', () => {
it('should be true when the directive has the ngOnChanges method', () => {
expect(hasLifecycleHook(LifecycleHooks.OnChanges, DirectiveWithOnChangesMethod))
.toBe(true);
});
it('should be false otherwise', () => {
expect(hasLifecycleHook(LifecycleHooks.OnChanges, DirectiveNoHooks)).toBe(false);
});
});
describe('ngOnDestroy', () => {
it('should be true when the directive has the ngOnDestroy method', () => {
expect(hasLifecycleHook(LifecycleHooks.OnDestroy, DirectiveWithOnDestroyMethod))
.toBe(true);
});
it('should be false otherwise', () => {
expect(hasLifecycleHook(LifecycleHooks.OnDestroy, DirectiveNoHooks)).toBe(false);
});
});
describe('ngOnInit', () => {
it('should be true when the directive has the ngOnInit method', () => {
expect(hasLifecycleHook(LifecycleHooks.OnInit, DirectiveWithOnInitMethod)).toBe(true);
});
it('should be false otherwise', () => {
expect(hasLifecycleHook(LifecycleHooks.OnInit, DirectiveNoHooks)).toBe(false);
});
});
describe('ngDoCheck', () => {
it('should be true when the directive has the ngDoCheck method', () => {
expect(hasLifecycleHook(LifecycleHooks.DoCheck, DirectiveWithOnCheckMethod)).toBe(true);
});
it('should be false otherwise', () => {
expect(hasLifecycleHook(LifecycleHooks.DoCheck, DirectiveNoHooks)).toBe(false);
});
});
describe('ngAfterContentInit', () => {
it('should be true when the directive has the ngAfterContentInit method', () => {
expect(hasLifecycleHook(
LifecycleHooks.AfterContentInit, DirectiveWithAfterContentInitMethod))
.toBe(true);
});
it('should be false otherwise', () => {
expect(hasLifecycleHook(LifecycleHooks.AfterContentInit, DirectiveNoHooks)).toBe(false);
});
});
describe('ngAfterContentChecked', () => {
it('should be true when the directive has the ngAfterContentChecked method', () => {
expect(hasLifecycleHook(
LifecycleHooks.AfterContentChecked, DirectiveWithAfterContentCheckedMethod))
.toBe(true);
});
it('should be false otherwise', () => {
expect(hasLifecycleHook(LifecycleHooks.AfterContentChecked, DirectiveNoHooks))
.toBe(false);
});
});
describe('ngAfterViewInit', () => {
it('should be true when the directive has the ngAfterViewInit method', () => {
expect(hasLifecycleHook(LifecycleHooks.AfterViewInit, DirectiveWithAfterViewInitMethod))
.toBe(true);
});
it('should be false otherwise', () => {
expect(hasLifecycleHook(LifecycleHooks.AfterViewInit, DirectiveNoHooks)).toBe(false);
});
});
describe('ngAfterViewChecked', () => {
it('should be true when the directive has the ngAfterViewChecked method', () => {
expect(hasLifecycleHook(
LifecycleHooks.AfterViewChecked, DirectiveWithAfterViewCheckedMethod))
.toBe(true);
});
it('should be false otherwise', () => {
expect(hasLifecycleHook(LifecycleHooks.AfterViewChecked, DirectiveNoHooks)).toBe(false);
});
});
});
});
}
class DirectiveNoHooks {}
class DirectiveWithOnChangesMethod {
ngOnChanges(_: any /** TODO #9100 */) {}
}
class DirectiveWithOnInitMethod {
ngOnInit() {}
}
class DirectiveWithOnCheckMethod {
ngDoCheck() {}
}
class DirectiveWithOnDestroyMethod {
ngOnDestroy() {}
}
class DirectiveWithAfterContentInitMethod {
ngAfterContentInit() {}
}
class DirectiveWithAfterContentCheckedMethod {
ngAfterContentChecked() {}
}
class DirectiveWithAfterViewInitMethod {
ngAfterViewInit() {}
}
class DirectiveWithAfterViewCheckedMethod {
ngAfterViewChecked() {}
}