343 lines
11 KiB
TypeScript
343 lines
11 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 {ElementRef, TemplateRef, ViewContainerRef} from '@angular/core';
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import {defineComponent} from '../../src/render3/definition';
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import {InjectFlags, bloomAdd, bloomFindPossibleInjector, getOrCreateNodeInjector} from '../../src/render3/di';
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import {PublicFeature, defineDirective, inject, injectElementRef, injectTemplateRef, injectViewContainerRef} from '../../src/render3/index';
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import {bind, bind2, container, containerRefreshEnd, containerRefreshStart, createLNode, createLView, createTView, elementEnd, elementStart, embeddedViewEnd, embeddedViewStart, enterView, leaveView, memory, text, textBinding} from '../../src/render3/instructions';
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import {LInjector} from '../../src/render3/interfaces/injector';
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import {LNodeFlags} from '../../src/render3/interfaces/node';
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import {renderComponent, renderToHtml} from './render_util';
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describe('di', () => {
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describe('no dependencies', () => {
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it('should create directive with no deps', () => {
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class Directive {
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value: string = 'Created';
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static ngDirectiveDef = defineDirective({type: Directive, factory: () => new Directive});
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}
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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elementStart(0, 'div', null, [Directive]);
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{ text(2); }
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elementEnd();
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}
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textBinding(2, bind(memory<Directive>(1).value));
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}
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expect(renderToHtml(Template, {})).toEqual('<div>Created</div>');
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});
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});
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describe('view dependencies', () => {
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it('should create directive with inter view dependencies', () => {
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class DirectiveA {
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value: string = 'A';
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static ngDirectiveDef = defineDirective(
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{type: DirectiveA, factory: () => new DirectiveA, features: [PublicFeature]});
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}
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class DirectiveB {
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value: string = 'B';
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static ngDirectiveDef = defineDirective(
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{type: DirectiveB, factory: () => new DirectiveB, features: [PublicFeature]});
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}
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class DirectiveC {
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value: string;
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constructor(a: DirectiveA, b: DirectiveB) { this.value = a.value + b.value; }
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static ngDirectiveDef = defineDirective({
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type: DirectiveC,
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factory: () => new DirectiveC(inject(DirectiveA), inject(DirectiveB))
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});
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}
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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elementStart(0, 'div', null, [DirectiveA]);
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{
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elementStart(2, 'span', null, [DirectiveB, DirectiveC]);
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{ text(5); }
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elementEnd();
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}
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elementEnd();
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}
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textBinding(5, bind(memory<DirectiveC>(4).value));
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}
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expect(renderToHtml(Template, {})).toEqual('<div><span>AB</span></div>');
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});
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});
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describe('ElementRef', () => {
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it('should create directive with ElementRef dependencies', () => {
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class Directive {
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value: string;
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constructor(public elementRef: ElementRef) {
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this.value = (elementRef.constructor as any).name;
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}
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static ngDirectiveDef = defineDirective({
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type: Directive,
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factory: () => new Directive(injectElementRef()),
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features: [PublicFeature]
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});
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}
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class DirectiveSameInstance {
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value: boolean;
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constructor(elementRef: ElementRef, directive: Directive) {
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this.value = elementRef === directive.elementRef;
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}
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static ngDirectiveDef = defineDirective({
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type: DirectiveSameInstance,
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factory: () => new DirectiveSameInstance(injectElementRef(), inject(Directive))
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});
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}
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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elementStart(0, 'div', null, [Directive, DirectiveSameInstance]);
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{ text(3); }
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elementEnd();
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}
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textBinding(
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3,
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bind2('', memory<Directive>(1).value, '-', memory<DirectiveSameInstance>(2).value, ''));
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}
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expect(renderToHtml(Template, {})).toEqual('<div>ElementRef-true</div>');
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});
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});
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describe('TemplateRef', () => {
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it('should create directive with TemplateRef dependencies', () => {
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class Directive {
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value: string;
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constructor(public templateRef: TemplateRef<any>) {
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this.value = (templateRef.constructor as any).name;
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}
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static ngDirectiveDef = defineDirective({
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type: Directive,
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factory: () => new Directive(injectTemplateRef()),
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features: [PublicFeature]
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});
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}
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class DirectiveSameInstance {
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value: boolean;
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constructor(templateRef: TemplateRef<any>, directive: Directive) {
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this.value = templateRef === directive.templateRef;
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}
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static ngDirectiveDef = defineDirective({
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type: DirectiveSameInstance,
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factory: () => new DirectiveSameInstance(injectTemplateRef(), inject(Directive))
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});
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}
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function Template(ctx: any, cm: any) {
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if (cm) {
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container(0, [Directive, DirectiveSameInstance], function() {});
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text(3);
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}
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textBinding(
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3,
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bind2('', memory<Directive>(1).value, '-', memory<DirectiveSameInstance>(2).value, ''));
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}
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expect(renderToHtml(Template, {})).toEqual('TemplateRef-true');
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});
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});
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describe('ViewContainerRef', () => {
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it('should create directive with ViewContainerRef dependencies', () => {
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class Directive {
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value: string;
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constructor(public viewContainerRef: ViewContainerRef) {
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this.value = (viewContainerRef.constructor as any).name;
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}
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static ngDirectiveDef = defineDirective({
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type: Directive,
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factory: () => new Directive(injectViewContainerRef()),
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features: [PublicFeature]
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});
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}
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class DirectiveSameInstance {
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value: boolean;
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constructor(viewContainerRef: ViewContainerRef, directive: Directive) {
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this.value = viewContainerRef === directive.viewContainerRef;
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}
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static ngDirectiveDef = defineDirective({
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type: DirectiveSameInstance,
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factory: () => new DirectiveSameInstance(injectViewContainerRef(), inject(Directive))
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});
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}
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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elementStart(0, 'div', null, [Directive, DirectiveSameInstance]);
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{ text(3); }
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elementEnd();
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}
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textBinding(
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3,
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bind2('', memory<Directive>(1).value, '-', memory<DirectiveSameInstance>(2).value, ''));
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}
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expect(renderToHtml(Template, {})).toEqual('<div>ViewContainerRef-true</div>');
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});
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});
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describe('inject', () => {
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describe('bloom filter', () => {
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let di: LInjector;
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beforeEach(() => {
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di = {} as any;
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di.bf0 = 0;
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di.bf1 = 0;
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di.bf2 = 0;
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di.bf3 = 0;
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di.cbf0 = 0;
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di.cbf1 = 0;
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di.cbf2 = 0;
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di.cbf3 = 0;
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});
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function bloomState() { return [di.bf3, di.bf2, di.bf1, di.bf0]; }
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it('should add values', () => {
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bloomAdd(di, { __NG_ELEMENT_ID__: 0 } as any);
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expect(bloomState()).toEqual([0, 0, 0, 1]);
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bloomAdd(di, { __NG_ELEMENT_ID__: 32 + 1 } as any);
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expect(bloomState()).toEqual([0, 0, 2, 1]);
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bloomAdd(di, { __NG_ELEMENT_ID__: 64 + 2 } as any);
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expect(bloomState()).toEqual([0, 4, 2, 1]);
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bloomAdd(di, { __NG_ELEMENT_ID__: 96 + 3 } as any);
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expect(bloomState()).toEqual([8, 4, 2, 1]);
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});
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it('should query values', () => {
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bloomAdd(di, { __NG_ELEMENT_ID__: 0 } as any);
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bloomAdd(di, { __NG_ELEMENT_ID__: 32 } as any);
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bloomAdd(di, { __NG_ELEMENT_ID__: 64 } as any);
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bloomAdd(di, { __NG_ELEMENT_ID__: 96 } as any);
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expect(bloomFindPossibleInjector(di, 0)).toEqual(di);
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expect(bloomFindPossibleInjector(di, 1)).toEqual(null);
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expect(bloomFindPossibleInjector(di, 32)).toEqual(di);
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expect(bloomFindPossibleInjector(di, 64)).toEqual(di);
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expect(bloomFindPossibleInjector(di, 96)).toEqual(di);
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});
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});
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describe('flags', () => {
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it('should return defaultValue not found', () => {
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class MyApp {
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constructor(public value: string) {}
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static ngComponentDef = defineComponent({
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type: MyApp,
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tag: 'my-app',
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factory: () => new MyApp(inject(String as any, InjectFlags.Default, 'DefaultValue')),
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template: () => null
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});
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}
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const myApp = renderComponent(MyApp);
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expect(myApp.value).toEqual('DefaultValue');
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});
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});
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it('should inject from parent view', () => {
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class ParentDirective {
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static ngDirectiveDef = defineDirective({
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type: ParentDirective,
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factory: () => new ParentDirective(),
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features: [PublicFeature]
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});
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}
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class ChildDirective {
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value: string;
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constructor(public parent: ParentDirective) {
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this.value = (parent.constructor as any).name;
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}
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static ngDirectiveDef = defineDirective({
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type: ChildDirective,
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factory: () => new ChildDirective(inject(ParentDirective)),
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features: [PublicFeature]
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});
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}
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class Child2Directive {
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value: boolean;
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constructor(parent: ParentDirective, child: ChildDirective) {
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this.value = parent === child.parent;
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}
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static ngDirectiveDef = defineDirective({
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type: Child2Directive,
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factory: () => new Child2Directive(inject(ParentDirective), inject(ChildDirective))
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});
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}
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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elementStart(0, 'div', null, [ParentDirective]);
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{ container(2); }
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elementEnd();
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}
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containerRefreshStart(2);
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{
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if (embeddedViewStart(0)) {
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elementStart(0, 'span', null, [ChildDirective, Child2Directive]);
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{ text(3); }
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elementEnd();
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}
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textBinding(
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3,
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bind2(
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'', memory<ChildDirective>(1).value, '-', memory<Child2Directive>(2).value, ''));
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embeddedViewEnd();
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}
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containerRefreshEnd();
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}
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expect(renderToHtml(Template, {})).toEqual('<div><span>ParentDirective-true</span></div>');
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});
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it('should inject from module Injector', () => {
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});
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});
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describe('getOrCreateNodeInjector', () => {
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it('should handle initial undefined state', () => {
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const contentView = createLView(-1, null !, createTView());
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const oldView = enterView(contentView, null !);
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try {
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const parent = createLNode(0, LNodeFlags.Element, null, null);
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// Simulate the situation where the previous parent is not initialized.
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// This happens on first bootstrap because we don't init existing values
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// so that we have smaller HelloWorld.
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(parent as{parent: any}).parent = undefined;
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const injector = getOrCreateNodeInjector();
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expect(injector).not.toBe(null);
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} finally {
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leaveView(oldView);
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}
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});
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});
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});
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