115 lines
3.7 KiB
TypeScript
115 lines
3.7 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {Component, Directive, HostBinding, HostListener, QueryList, ViewChildren} from '@angular/core';
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import {TestBed} from '@angular/core/testing';
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import {By} from '@angular/platform-browser';
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import {expect} from '@angular/platform-browser/testing/src/matchers';
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import {onlyInIvy} from '@angular/private/testing';
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describe('acceptance integration tests', () => {
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onlyInIvy('[style] and [class] bindings are a new feature')
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.it('should render host bindings on the root component', () => {
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@Component({template: '...'})
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class MyApp {
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@HostBinding('style') public myStylesExp = {};
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@HostBinding('class') public myClassesExp = {};
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}
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TestBed.configureTestingModule({declarations: [MyApp]});
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const fixture = TestBed.createComponent(MyApp);
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const element = fixture.nativeElement;
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fixture.detectChanges();
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const component = fixture.componentInstance;
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component.myStylesExp = {width: '100px'};
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component.myClassesExp = 'foo';
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fixture.detectChanges();
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expect(element.style['width']).toEqual('100px');
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expect(element.classList.contains('foo')).toBeTruthy();
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component.myStylesExp = {width: '200px'};
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component.myClassesExp = 'bar';
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fixture.detectChanges();
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expect(element.style['width']).toEqual('200px');
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expect(element.classList.contains('foo')).toBeFalsy();
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expect(element.classList.contains('bar')).toBeTruthy();
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});
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it('should only call inherited host listeners once', () => {
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let clicks = 0;
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@Component({template: ''})
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class ButtonSuperClass {
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@HostListener('click')
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clicked() { clicks++; }
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}
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@Component({selector: 'button[custom-button]', template: ''})
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class ButtonSubClass extends ButtonSuperClass {
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}
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@Component({template: '<button custom-button></button>'})
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class MyApp {
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}
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TestBed.configureTestingModule({declarations: [MyApp, ButtonSuperClass, ButtonSubClass]});
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const fixture = TestBed.createComponent(MyApp);
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const button = fixture.debugElement.query(By.directive(ButtonSubClass));
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fixture.detectChanges();
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button.nativeElement.click();
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fixture.detectChanges();
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expect(clicks).toBe(1);
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});
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it('should support inherited view queries', () => {
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@Directive({selector: '[someDir]'})
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class SomeDir {
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}
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@Component({template: '<div someDir></div>'})
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class SuperComp {
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@ViewChildren(SomeDir) dirs !: QueryList<SomeDir>;
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}
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@Component({selector: 'button[custom-button]', template: '<div someDir></div>'})
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class SubComp extends SuperComp {
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}
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@Component({template: '<button custom-button></button>'})
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class MyApp {
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}
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TestBed.configureTestingModule({declarations: [MyApp, SuperComp, SubComp, SomeDir]});
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const fixture = TestBed.createComponent(MyApp);
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const subInstance = fixture.debugElement.query(By.directive(SubComp)).componentInstance;
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fixture.detectChanges();
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expect(subInstance.dirs.length).toBe(1);
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expect(subInstance.dirs.first).toBeAnInstanceOf(SomeDir);
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});
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it('should render host class and style on the root component', () => {
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@Component({template: '...', host: {class: 'foo', style: 'color: red'}})
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class MyApp {
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}
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TestBed.configureTestingModule({declarations: [MyApp]});
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const fixture = TestBed.createComponent(MyApp);
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const element = fixture.nativeElement;
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fixture.detectChanges();
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expect(element.style['color']).toEqual('red');
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expect(element.classList.contains('foo')).toBeTruthy();
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});
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});
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