350 lines
13 KiB
TypeScript
350 lines
13 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 {ChangeDetectorRef} from '@angular/core/src/change_detection/change_detector_ref';
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import {ElementRef} from '@angular/core/src/linker/element_ref';
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import {TemplateRef} from '@angular/core/src/linker/template_ref';
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import {ViewContainerRef} from '@angular/core/src/linker/view_container_ref';
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import {Renderer2} from '@angular/core/src/render/api';
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import {stringifyElement} from '@angular/platform-browser/testing/src/browser_util';
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import {SWITCH_CHANGE_DETECTOR_REF_FACTORY__POST_R3__ as R3_CHANGE_DETECTOR_REF_FACTORY} from '../../src/change_detection/change_detector_ref';
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import {Injector, SWITCH_INJECTOR_FACTORY__POST_R3__ as R3_INJECTOR_FACTORY} from '../../src/di/injector';
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import {SWITCH_ELEMENT_REF_FACTORY__POST_R3__ as R3_ELEMENT_REF_FACTORY} from '../../src/linker/element_ref';
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import {SWITCH_TEMPLATE_REF_FACTORY__POST_R3__ as R3_TEMPLATE_REF_FACTORY} from '../../src/linker/template_ref';
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import {SWITCH_VIEW_CONTAINER_REF_FACTORY__POST_R3__ as R3_VIEW_CONTAINER_REF_FACTORY} from '../../src/linker/view_container_ref';
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import {SWITCH_RENDERER2_FACTORY__POST_R3__ as R3_RENDERER2_FACTORY} from '../../src/render/api';
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import {CreateComponentOptions} from '../../src/render3/component';
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import {discoverDirectives, getContext, isComponentInstance} from '../../src/render3/context_discovery';
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import {extractDirectiveDef, extractPipeDef} from '../../src/render3/definition';
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import {NG_ELEMENT_ID} from '../../src/render3/fields';
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import {ComponentTemplate, ComponentType, DirectiveDef, DirectiveType, RenderFlags, defineComponent, defineDirective, renderComponent as _renderComponent, tick} from '../../src/render3/index';
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import {renderTemplate} from '../../src/render3/instructions';
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import {DirectiveDefList, DirectiveTypesOrFactory, PipeDef, PipeDefList, PipeTypesOrFactory} from '../../src/render3/interfaces/definition';
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import {PlayerHandler} from '../../src/render3/interfaces/player';
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import {RElement, RText, Renderer3, RendererFactory3, domRendererFactory3} from '../../src/render3/interfaces/renderer';
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import {HEADER_OFFSET, LViewData} from '../../src/render3/interfaces/view';
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import {getViewData} from '../../src/render3/state';
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import {Sanitizer} from '../../src/sanitization/security';
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import {Type} from '../../src/type';
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import {getRendererFactory2} from './imported_renderer2';
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export abstract class BaseFixture {
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/**
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* Each fixture creates the following initial DOM structure:
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* <div fixture="mark">
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* <div host="mark"></div>
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* </div>
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*
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* Components are bootstrapped into the <div host="mark"></div>.
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* The <div fixture="mark"> is there for cases where the root component creates DOM node _outside_
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* of its host element (for example when the root component injectes ViewContainerRef or does
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* low-level DOM manipulation).
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*
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* The <div fixture="mark"> is _not_ attached to the document body.
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*/
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containerElement: HTMLElement;
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hostElement: HTMLElement;
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constructor() {
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this.containerElement = document.createElement('div');
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this.containerElement.setAttribute('fixture', 'mark');
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this.hostElement = document.createElement('div');
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this.hostElement.setAttribute('host', 'mark');
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this.containerElement.appendChild(this.hostElement);
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}
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/**
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* Current state of HTML rendered by the bootstrapped component.
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*/
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get html(): string { return toHtml(this.hostElement as any as Element); }
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/**
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* Current state of HTML rendered by the fixture (will include HTML rendered by the bootstrapped
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* component as well as any elements outside of the component's host).
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*/
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get outerHtml(): string { return toHtml(this.containerElement as any as Element); }
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}
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function noop() {}
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/**
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* Fixture for testing template functions in a convenient way.
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*
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* This fixture allows:
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* - specifying the creation block and update block as two separate functions,
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* - maintaining the template state between invocations,
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* - access to the render `html`.
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*/
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export class TemplateFixture extends BaseFixture {
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hostView: LViewData;
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private _directiveDefs: DirectiveDefList|null;
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private _pipeDefs: PipeDefList|null;
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private _sanitizer: Sanitizer|null;
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private _rendererFactory: RendererFactory3;
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/**
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*
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* @param createBlock Instructions which go into the creation block:
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* `if (rf & RenderFlags.Create) { __here__ }`.
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* @param updateBlock Optional instructions which go into the update block:
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* `if (rf & RenderFlags.Update) { __here__ }`.
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*/
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constructor(
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private createBlock: () => void, private updateBlock: () => void = noop, consts: number = 0,
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private vars: number = 0, directives?: DirectiveTypesOrFactory|null,
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pipes?: PipeTypesOrFactory|null, sanitizer?: Sanitizer|null,
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rendererFactory?: RendererFactory3) {
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super();
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this._directiveDefs = toDefs(directives, extractDirectiveDef);
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this._pipeDefs = toDefs(pipes, extractPipeDef);
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this._sanitizer = sanitizer || null;
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this._rendererFactory = rendererFactory || domRendererFactory3;
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this.hostView = renderTemplate(
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this.hostElement,
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(rf: RenderFlags, ctx: any) => {
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if (rf & RenderFlags.Create) {
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this.createBlock();
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}
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if (rf & RenderFlags.Update) {
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this.updateBlock();
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}
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},
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consts, vars, null !, this._rendererFactory, null, this._directiveDefs, this._pipeDefs,
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sanitizer);
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}
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/**
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* Update the existing template
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*
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* @param updateBlock Optional update block.
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*/
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update(updateBlock?: () => void): void {
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renderTemplate(
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this.hostElement, updateBlock || this.updateBlock, 0, this.vars, null !,
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this._rendererFactory, this.hostView, this._directiveDefs, this._pipeDefs, this._sanitizer);
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}
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}
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/**
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* Fixture for testing Components in a convenient way.
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*/
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export class ComponentFixture<T> extends BaseFixture {
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component: T;
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requestAnimationFrame: {(fn: () => void): void; flush(): void; queue: (() => void)[];};
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constructor(private componentType: ComponentType<T>, opts: {
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injector?: Injector,
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sanitizer?: Sanitizer,
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rendererFactory?: RendererFactory3,
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playerHandler?: PlayerHandler
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} = {}) {
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super();
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this.requestAnimationFrame = function(fn: () => void) {
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requestAnimationFrame.queue.push(fn);
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} as any;
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this.requestAnimationFrame.queue = [];
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this.requestAnimationFrame.flush = function() {
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while (requestAnimationFrame.queue.length) {
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requestAnimationFrame.queue.shift() !();
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}
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};
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this.component = _renderComponent(componentType, {
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host: this.hostElement,
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scheduler: this.requestAnimationFrame,
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injector: opts.injector,
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sanitizer: opts.sanitizer,
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rendererFactory: opts.rendererFactory || domRendererFactory3,
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playerHandler: opts.playerHandler
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});
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}
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update(): void {
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tick(this.component);
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this.requestAnimationFrame.flush();
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}
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}
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///////////////////////////////////////////////////////////////////////////////////
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// The methods below use global state and we should stop using them.
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// Fixtures above are preferred way of testing Components and Templates
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///////////////////////////////////////////////////////////////////////////////////
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export const document = ((typeof global == 'object' && global || window) as any).document;
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export let containerEl: HTMLElement = null !;
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let hostView: LViewData|null;
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const isRenderer2 =
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typeof process == 'object' && process.argv[3] && process.argv[3] === '--r=renderer2';
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// tslint:disable-next-line:no-console
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console.log(`Running tests with ${!isRenderer2 ? 'document' : 'Renderer2'} renderer...`);
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const testRendererFactory: RendererFactory3 =
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isRenderer2 ? getRendererFactory2(document) : domRendererFactory3;
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export const requestAnimationFrame:
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{(fn: () => void): void; flush(): void; queue: (() => void)[];} = function(fn: () => void) {
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requestAnimationFrame.queue.push(fn);
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} as any;
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requestAnimationFrame.flush = function() {
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while (requestAnimationFrame.queue.length) {
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requestAnimationFrame.queue.shift() !();
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}
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};
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export function resetDOM() {
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requestAnimationFrame.queue = [];
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if (containerEl) {
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try {
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document.body.removeChild(containerEl);
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} catch (e) {
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}
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}
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containerEl = document.createElement('div');
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containerEl.setAttribute('host', '');
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document.body.appendChild(containerEl);
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hostView = null;
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// TODO: assert that the global state is clean (e.g. ngData, previousOrParentNode, etc)
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}
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/**
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* @deprecated use `TemplateFixture` or `ComponentFixture`
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*/
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export function renderToHtml(
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template: ComponentTemplate<any>, ctx: any, consts: number = 0, vars: number = 0,
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directives?: DirectiveTypesOrFactory | null, pipes?: PipeTypesOrFactory | null,
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providedRendererFactory?: RendererFactory3 | null) {
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hostView = renderTemplate(
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containerEl, template, consts, vars, ctx, providedRendererFactory || testRendererFactory,
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hostView, toDefs(directives, extractDirectiveDef), toDefs(pipes, extractPipeDef));
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return toHtml(containerEl);
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}
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function toDefs(
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types: DirectiveTypesOrFactory | undefined | null,
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mapFn: (type: Type<any>) => DirectiveDef<any>): DirectiveDefList|null;
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function toDefs(
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types: PipeTypesOrFactory | undefined | null,
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mapFn: (type: Type<any>) => PipeDef<any>): PipeDefList|null;
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function toDefs(
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types: PipeTypesOrFactory | DirectiveTypesOrFactory | undefined | null,
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mapFn: (type: Type<any>) => PipeDef<any>| DirectiveDef<any>): any {
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if (!types) return null;
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if (typeof types == 'function') {
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types = types();
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}
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return types.map(mapFn);
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}
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beforeEach(resetDOM);
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// This is necessary so we can switch between the Render2 version and the Ivy version
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// of special objects like ElementRef and TemplateRef.
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beforeEach(enableIvyInjectableFactories);
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/**
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* @deprecated use `TemplateFixture` or `ComponentFixture`
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*/
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export function renderComponent<T>(type: ComponentType<T>, opts?: CreateComponentOptions): T {
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return _renderComponent(type, {
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rendererFactory: opts && opts.rendererFactory || testRendererFactory,
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host: containerEl,
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scheduler: requestAnimationFrame,
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sanitizer: opts ? opts.sanitizer : undefined,
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hostFeatures: opts && opts.hostFeatures
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});
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}
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/**
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* @deprecated use `TemplateFixture` or `ComponentFixture`
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*/
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export function toHtml<T>(componentOrElement: T | RElement): string {
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let element: any;
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if (isComponentInstance(componentOrElement)) {
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const context = getContext(componentOrElement);
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element = context ? context.native : null;
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} else {
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element = componentOrElement;
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}
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if (element) {
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return stringifyElement(element)
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.replace(/^<div host="">(.*)<\/div>$/, '$1')
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.replace(/^<div fixture="mark">(.*)<\/div>$/, '$1')
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.replace(/^<div host="mark">(.*)<\/div>$/, '$1')
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.replace(' style=""', '')
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.replace(/<!--container-->/g, '')
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.replace(/<!--ng-container-->/g, '');
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} else {
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return '';
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}
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}
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export function createComponent(
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name: string, template: ComponentTemplate<any>, consts: number = 0, vars: number = 0,
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directives: DirectiveTypesOrFactory = [], pipes: PipeTypesOrFactory = [],
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viewQuery: ComponentTemplate<any>| null = null): ComponentType<any> {
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return class Component {
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value: any;
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static ngComponentDef = defineComponent({
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type: Component,
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selectors: [[name]],
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consts: consts,
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vars: vars,
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factory: () => new Component,
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template: template,
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viewQuery: viewQuery,
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directives: directives,
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pipes: pipes
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});
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};
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}
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export function createDirective(
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name: string, {exportAs}: {exportAs?: string} = {}): DirectiveType<any> {
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return class Directive {
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static ngDirectiveDef = defineDirective({
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type: Directive,
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selectors: [['', name, '']],
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factory: () => new Directive(),
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exportAs: exportAs,
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});
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};
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}
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/** Gets the directive on the given node at the given index */
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export function getDirectiveOnNode(nodeIndex: number, dirIndex: number = 0) {
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const directives = discoverDirectives(nodeIndex + HEADER_OFFSET, getViewData(), true);
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if (directives == null) {
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throw new Error(`No directives exist on node in slot ${nodeIndex}`);
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}
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return directives[dirIndex];
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}
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// Verify that DOM is a type of render. This is here for error checking only and has no use.
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export const renderer: Renderer3 = null as any as Document;
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export const element: RElement = null as any as HTMLElement;
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export const text: RText = null as any as Text;
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/**
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* Switches between Render2 version of special objects like ElementRef and the Ivy version
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* of these objects. It's necessary to keep them separate so that we don't pull in fns
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* like injectElementRef() prematurely.
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*/
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export function enableIvyInjectableFactories() {
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(ElementRef as any)[NG_ELEMENT_ID] = () => R3_ELEMENT_REF_FACTORY(ElementRef);
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(TemplateRef as any)[NG_ELEMENT_ID] = () => R3_TEMPLATE_REF_FACTORY(TemplateRef, ElementRef);
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(ViewContainerRef as any)[NG_ELEMENT_ID] = () =>
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R3_VIEW_CONTAINER_REF_FACTORY(ViewContainerRef, ElementRef);
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(ChangeDetectorRef as any)[NG_ELEMENT_ID] = () => R3_CHANGE_DETECTOR_REF_FACTORY();
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(Renderer2 as any)[NG_ELEMENT_ID] = () => R3_RENDERER2_FACTORY();
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(Injector as any)[NG_ELEMENT_ID] = () => R3_INJECTOR_FACTORY();
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}
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