556 lines
16 KiB
TypeScript
556 lines
16 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 {ViewEncapsulation, ɵɵdefineInjectable, ɵɵdefineInjector} from '../../src/core';
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import {createInjector} from '../../src/di/r3_injector';
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import {AttributeMarker, ComponentFactory, LifecycleHooksFeature, getRenderedText, markDirty, ɵɵadvance, ɵɵdefineComponent, ɵɵdirectiveInject, ɵɵproperty, ɵɵselect, ɵɵtemplate} from '../../src/render3/index';
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import {tick, ɵɵcontainer, ɵɵcontainerRefreshEnd, ɵɵcontainerRefreshStart, ɵɵelement, ɵɵelementEnd, ɵɵelementStart, ɵɵembeddedViewEnd, ɵɵembeddedViewStart, ɵɵnextContext, ɵɵtext, ɵɵtextInterpolate} from '../../src/render3/instructions/all';
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import {ComponentDef, RenderFlags} from '../../src/render3/interfaces/definition';
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import {NgIf} from './common_with_def';
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import {ComponentFixture, MockRendererFactory, containerEl, createComponent, renderComponent, renderToHtml, requestAnimationFrame, toHtml} from './render_util';
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describe('component', () => {
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class CounterComponent {
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count = 0;
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increment() { this.count++; }
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static ɵfac = () => new CounterComponent;
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static ɵcmp = ɵɵdefineComponent({
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type: CounterComponent,
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encapsulation: ViewEncapsulation.None,
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selectors: [['counter']],
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decls: 1,
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vars: 1,
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template: function(rf: RenderFlags, ctx: CounterComponent) {
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if (rf & RenderFlags.Create) {
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ɵɵtext(0);
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}
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if (rf & RenderFlags.Update) {
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ɵɵtextInterpolate(ctx.count);
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}
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},
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inputs: {count: 'count'},
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});
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}
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describe('renderComponent', () => {
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it('should render on initial call', () => {
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renderComponent(CounterComponent);
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expect(toHtml(containerEl)).toEqual('0');
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});
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it('should re-render on input change or method invocation', () => {
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const component = renderComponent(CounterComponent);
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expect(toHtml(containerEl)).toEqual('0');
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component.count = 123;
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markDirty(component);
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expect(toHtml(containerEl)).toEqual('0');
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requestAnimationFrame.flush();
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expect(toHtml(containerEl)).toEqual('123');
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component.increment();
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markDirty(component);
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expect(toHtml(containerEl)).toEqual('123');
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requestAnimationFrame.flush();
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expect(toHtml(containerEl)).toEqual('124');
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});
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class MyService {
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constructor(public value: string) {}
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static ɵprov = ɵɵdefineInjectable({
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token: MyService,
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providedIn: 'root',
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factory: () => new MyService('no-injector'),
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});
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}
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class MyComponent {
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constructor(public myService: MyService) {}
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static ɵfac = () => new MyComponent(ɵɵdirectiveInject(MyService));
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static ɵcmp = ɵɵdefineComponent({
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type: MyComponent,
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encapsulation: ViewEncapsulation.None,
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selectors: [['my-component']],
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decls: 1,
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vars: 1,
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template: function(fs: RenderFlags, ctx: MyComponent) {
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if (fs & RenderFlags.Create) {
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ɵɵtext(0);
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}
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if (fs & RenderFlags.Update) {
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ɵɵtextInterpolate(ctx.myService.value);
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}
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}
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});
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}
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class MyModule {
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static ɵinj = ɵɵdefineInjector({
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factory: () => new MyModule(),
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providers: [{provide: MyService, useValue: new MyService('injector')}]
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});
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}
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it('should support bootstrapping without injector', () => {
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const fixture = new ComponentFixture(MyComponent);
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expect(fixture.html).toEqual('no-injector');
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});
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it('should support bootstrapping with injector', () => {
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const fixture = new ComponentFixture(MyComponent, {injector: createInjector(MyModule)});
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expect(fixture.html).toEqual('injector');
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});
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});
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it('should instantiate components at high indices', () => {
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// {{ name }}
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class Comp {
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// @Input
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name = '';
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static ɵfac = () => new Comp();
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static ɵcmp = ɵɵdefineComponent({
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type: Comp,
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selectors: [['comp']],
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decls: 1,
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vars: 1,
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template: (rf: RenderFlags, ctx: Comp) => {
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if (rf & RenderFlags.Create) {
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ɵɵtext(0);
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}
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if (rf & RenderFlags.Update) {
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ɵɵtextInterpolate(ctx.name);
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}
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},
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inputs: {name: 'name'}
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});
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}
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// Artificially inflating the slot IDs of this app component to mimic an app
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// with a very large view
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const App = createComponent('app', (rf: RenderFlags, ctx: any) => {
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if (rf & RenderFlags.Create) {
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ɵɵelement(4097, 'comp');
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}
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if (rf & RenderFlags.Update) {
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ɵɵadvance(4097);
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ɵɵproperty('name', ctx.name);
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}
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}, 4098, 1, [Comp]);
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const fixture = new ComponentFixture(App);
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expect(fixture.html).toEqual('<comp></comp>');
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fixture.component.name = 'some name';
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fixture.update();
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expect(fixture.html).toEqual('<comp>some name</comp>');
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});
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});
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it('should not invoke renderer destroy method for embedded views', () => {
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let comp: Comp;
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function MyComponent_div_Template_2(rf: any, ctx: any) {
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if (rf & RenderFlags.Create) {
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ɵɵelementStart(0, 'div');
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ɵɵtext(1, 'Child view');
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ɵɵelementEnd();
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}
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}
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class Comp {
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visible = true;
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static ɵfac =
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() => {
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comp = new Comp();
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return comp;
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}
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static ɵcmp = ɵɵdefineComponent({
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type: Comp,
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selectors: [['comp']],
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decls: 3,
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vars: 1,
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directives: [NgIf],
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consts: [[AttributeMarker.Template, 'ngIf']],
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/**
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* <div>Root view</div>
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* <div *ngIf="visible">Child view</div>
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*/
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template: function(rf: RenderFlags, ctx: Comp) {
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if (rf & RenderFlags.Create) {
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ɵɵelementStart(0, 'div');
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ɵɵtext(1, 'Root view');
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ɵɵelementEnd();
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ɵɵtemplate(2, MyComponent_div_Template_2, 2, 0, 'div', 0);
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}
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if (rf & RenderFlags.Update) {
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ɵɵadvance(2);
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ɵɵproperty('ngIf', ctx.visible);
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}
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}
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});
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}
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const rendererFactory = new MockRendererFactory(['destroy']);
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const fixture = new ComponentFixture(Comp, {rendererFactory});
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comp !.visible = false;
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fixture.update();
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comp !.visible = true;
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fixture.update();
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const renderer = rendererFactory.lastRenderer !;
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const destroySpy = renderer.spies['destroy'];
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// we should never see `destroy` method being called
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// in case child views are created/removed
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expect(destroySpy.calls.count()).toBe(0);
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});
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describe('component with a container', () => {
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function showItems(rf: RenderFlags, ctx: {items: string[]}) {
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if (rf & RenderFlags.Create) {
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ɵɵcontainer(0);
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}
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if (rf & RenderFlags.Update) {
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ɵɵcontainerRefreshStart(0);
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{
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for (const item of ctx.items) {
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const rf0 = ɵɵembeddedViewStart(0, 1, 1);
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{
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if (rf0 & RenderFlags.Create) {
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ɵɵtext(0);
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}
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if (rf0 & RenderFlags.Update) {
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ɵɵselect(0);
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ɵɵtextInterpolate(item);
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}
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}
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ɵɵembeddedViewEnd();
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}
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}
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ɵɵcontainerRefreshEnd();
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}
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}
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class WrapperComponent {
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// TODO(issue/24571): remove '!'.
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items !: string[];
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static ɵfac = () => new WrapperComponent;
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static ɵcmp = ɵɵdefineComponent({
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type: WrapperComponent,
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encapsulation: ViewEncapsulation.None,
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selectors: [['wrapper']],
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decls: 1,
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vars: 0,
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template: function ChildComponentTemplate(rf: RenderFlags, ctx: {items: string[]}) {
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if (rf & RenderFlags.Create) {
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ɵɵcontainer(0);
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}
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if (rf & RenderFlags.Update) {
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ɵɵcontainerRefreshStart(0);
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{
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const rf0 = ɵɵembeddedViewStart(0, 1, 0);
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{ showItems(rf0, {items: ctx.items}); }
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ɵɵembeddedViewEnd();
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}
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ɵɵcontainerRefreshEnd();
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}
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},
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inputs: {items: 'items'}
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});
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}
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function template(rf: RenderFlags, ctx: {items: string[]}) {
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if (rf & RenderFlags.Create) {
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ɵɵelement(0, 'wrapper');
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}
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if (rf & RenderFlags.Update) {
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ɵɵproperty('items', ctx.items);
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}
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}
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const defs = [WrapperComponent];
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it('should re-render on input change', () => {
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const ctx: {items: string[]} = {items: ['a']};
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expect(renderToHtml(template, ctx, 1, 1, defs)).toEqual('<wrapper>a</wrapper>');
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ctx.items = [...ctx.items, 'b'];
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expect(renderToHtml(template, ctx, 1, 1, defs)).toEqual('<wrapper>ab</wrapper>');
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});
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});
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describe('recursive components', () => {
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let events: string[];
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let count: number;
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beforeEach(() => {
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events = [];
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count = 0;
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});
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class TreeNode {
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constructor(
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public value: number, public depth: number, public left: TreeNode|null,
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public right: TreeNode|null) {}
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}
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/**
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* {{ data.value }}
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*
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* % if (data.left != null) {
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* <tree-comp [data]="data.left"></tree-comp>
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* % }
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* % if (data.right != null) {
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* <tree-comp [data]="data.right"></tree-comp>
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* % }
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*/
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class TreeComponent {
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data: TreeNode = _buildTree(0);
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ngDoCheck() { events.push('check' + this.data.value); }
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ngOnDestroy() { events.push('destroy' + this.data.value); }
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static ɵfac = () => new TreeComponent();
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static ɵcmp = ɵɵdefineComponent({
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type: TreeComponent,
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encapsulation: ViewEncapsulation.None,
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selectors: [['tree-comp']],
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decls: 3,
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vars: 1,
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template: (rf: RenderFlags, ctx: TreeComponent) => {
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if (rf & RenderFlags.Create) {
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ɵɵtext(0);
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ɵɵcontainer(1);
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ɵɵcontainer(2);
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}
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if (rf & RenderFlags.Update) {
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ɵɵtextInterpolate(ctx.data.value);
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ɵɵcontainerRefreshStart(1);
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{
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if (ctx.data.left != null) {
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let rf0 = ɵɵembeddedViewStart(0, 1, 1);
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if (rf0 & RenderFlags.Create) {
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ɵɵelement(0, 'tree-comp');
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}
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if (rf0 & RenderFlags.Update) {
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ɵɵselect(0);
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ɵɵproperty('data', ctx.data.left);
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}
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ɵɵembeddedViewEnd();
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}
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}
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ɵɵcontainerRefreshEnd();
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ɵɵcontainerRefreshStart(2);
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{
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if (ctx.data.right != null) {
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let rf0 = ɵɵembeddedViewStart(0, 1, 1);
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if (rf0 & RenderFlags.Create) {
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ɵɵelement(0, 'tree-comp');
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}
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if (rf0 & RenderFlags.Update) {
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ɵɵselect(0);
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ɵɵproperty('data', ctx.data.right);
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}
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ɵɵembeddedViewEnd();
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}
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}
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ɵɵcontainerRefreshEnd();
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}
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},
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inputs: {data: 'data'}
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});
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}
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(TreeComponent.ɵcmp as ComponentDef<TreeComponent>).directiveDefs = () => [TreeComponent.ɵcmp];
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/**
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* {{ data.value }}
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* <ng-if-tree [data]="data.left" *ngIf="data.left"></ng-if-tree>
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* <ng-if-tree [data]="data.right" *ngIf="data.right"></ng-if-tree>
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*/
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class NgIfTree {
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data: TreeNode = _buildTree(0);
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ngDoCheck() { events.push('check' + this.data.value); }
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ngOnDestroy() { events.push('destroy' + this.data.value); }
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static ɵfac = () => new NgIfTree();
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static ɵcmp = ɵɵdefineComponent({
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type: NgIfTree,
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encapsulation: ViewEncapsulation.None,
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selectors: [['ng-if-tree']],
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decls: 3,
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vars: 3,
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consts: [[AttributeMarker.Bindings, 'data', AttributeMarker.Template, 'ngIf']],
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template: (rf: RenderFlags, ctx: NgIfTree) => {
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if (rf & RenderFlags.Create) {
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ɵɵtext(0);
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ɵɵtemplate(1, IfTemplate, 1, 1, 'ng-if-tree', 0);
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ɵɵtemplate(2, IfTemplate2, 1, 1, 'ng-if-tree', 0);
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}
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if (rf & RenderFlags.Update) {
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ɵɵtextInterpolate(ctx.data.value);
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ɵɵadvance(1);
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ɵɵproperty('ngIf', ctx.data.left);
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ɵɵadvance(1);
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ɵɵproperty('ngIf', ctx.data.right);
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}
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},
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inputs: {data: 'data'},
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});
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}
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function IfTemplate(rf: RenderFlags, left: any) {
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if (rf & RenderFlags.Create) {
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ɵɵelementStart(0, 'ng-if-tree');
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ɵɵelementEnd();
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}
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if (rf & RenderFlags.Update) {
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const parent = ɵɵnextContext();
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ɵɵproperty('data', parent.data.left);
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}
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}
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function IfTemplate2(rf: RenderFlags, right: any) {
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if (rf & RenderFlags.Create) {
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ɵɵelementStart(0, 'ng-if-tree');
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ɵɵelementEnd();
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}
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if (rf & RenderFlags.Update) {
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const parent = ɵɵnextContext();
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ɵɵproperty('data', parent.data.right);
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}
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}
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(NgIfTree.ɵcmp as ComponentDef<NgIfTree>).directiveDefs = () => [NgIfTree.ɵcmp, NgIf.ɵdir];
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function _buildTree(currDepth: number): TreeNode {
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const children = currDepth < 2 ? _buildTree(currDepth + 1) : null;
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const children2 = currDepth < 2 ? _buildTree(currDepth + 1) : null;
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return new TreeNode(count++, currDepth, children, children2);
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}
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it('should check each component just once', () => {
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const comp = renderComponent(TreeComponent, {hostFeatures: [LifecycleHooksFeature]});
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expect(getRenderedText(comp)).toEqual('6201534');
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expect(events).toEqual(['check6', 'check2', 'check0', 'check1', 'check5', 'check3', 'check4']);
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events = [];
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tick(comp);
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expect(events).toEqual(['check6', 'check2', 'check0', 'check1', 'check5', 'check3', 'check4']);
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});
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// This tests that the view tree is set up properly for recursive components
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it('should call onDestroys properly', () => {
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/**
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* % if (!skipContent) {
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* <tree-comp></tree-comp>
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* % }
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*/
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const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
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if (rf & RenderFlags.Create) {
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ɵɵcontainer(0);
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}
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if (rf & RenderFlags.Update) {
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ɵɵcontainerRefreshStart(0);
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if (!ctx.skipContent) {
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const rf0 = ɵɵembeddedViewStart(0, 1, 0);
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if (rf0 & RenderFlags.Create) {
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ɵɵelementStart(0, 'tree-comp');
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ɵɵelementEnd();
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}
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ɵɵembeddedViewEnd();
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}
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ɵɵcontainerRefreshEnd();
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}
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}, 1, 0, [TreeComponent]);
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const fixture = new ComponentFixture(App);
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expect(getRenderedText(fixture.component)).toEqual('6201534');
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events = [];
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fixture.component.skipContent = true;
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fixture.update();
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expect(events).toEqual(
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['destroy0', 'destroy1', 'destroy2', 'destroy3', 'destroy4', 'destroy5', 'destroy6']);
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});
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it('should call onDestroys properly with ngIf', () => {
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/**
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* % if (!skipContent) {
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* <ng-if-tree></ng-if-tree>
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* % }
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*/
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const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
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if (rf & RenderFlags.Create) {
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ɵɵcontainer(0);
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}
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if (rf & RenderFlags.Update) {
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ɵɵcontainerRefreshStart(0);
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if (!ctx.skipContent) {
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const rf0 = ɵɵembeddedViewStart(0, 1, 0);
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if (rf0 & RenderFlags.Create) {
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ɵɵelementStart(0, 'ng-if-tree');
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ɵɵelementEnd();
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}
|
|
ɵɵembeddedViewEnd();
|
|
}
|
|
ɵɵcontainerRefreshEnd();
|
|
}
|
|
}, 1, 0, [NgIfTree]);
|
|
|
|
const fixture = new ComponentFixture(App);
|
|
expect(getRenderedText(fixture.component)).toEqual('6201534');
|
|
expect(events).toEqual(['check6', 'check2', 'check0', 'check1', 'check5', 'check3', 'check4']);
|
|
|
|
events = [];
|
|
fixture.component.skipContent = true;
|
|
fixture.update();
|
|
expect(events).toEqual(
|
|
['destroy0', 'destroy1', 'destroy2', 'destroy3', 'destroy4', 'destroy5', 'destroy6']);
|
|
});
|
|
|
|
it('should map inputs minified & unminified names', async() => {
|
|
class TestInputsComponent {
|
|
// TODO(issue/24571): remove '!'.
|
|
minifiedName !: string;
|
|
static ɵfac = () => new TestInputsComponent();
|
|
static ɵcmp = ɵɵdefineComponent({
|
|
type: TestInputsComponent,
|
|
encapsulation: ViewEncapsulation.None,
|
|
selectors: [['test-inputs']],
|
|
inputs: {minifiedName: 'unminifiedName'},
|
|
decls: 0,
|
|
vars: 0,
|
|
template: function(rf: RenderFlags, ctx: TestInputsComponent): void {
|
|
// Template not needed for this test
|
|
}
|
|
});
|
|
}
|
|
|
|
const testInputsComponentFactory = new ComponentFactory(TestInputsComponent.ɵcmp);
|
|
|
|
expect([
|
|
{propName: 'minifiedName', templateName: 'unminifiedName'}
|
|
]).toEqual(testInputsComponentFactory.inputs);
|
|
|
|
});
|
|
|
|
});
|