angular-docs-cn/packages/core/test/render3/integration_spec.ts

1066 lines
36 KiB
TypeScript

/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {RElement} from '@angular/core/src/render3/interfaces/renderer_dom';
import {RendererType2} from '../../src/render/api_flags';
import {getLContext, readPatchedData} from '../../src/render3/context_discovery';
import {AttributeMarker, ɵɵadvance, ɵɵattribute, ɵɵdefineComponent, ɵɵdefineDirective, ɵɵhostProperty, ɵɵproperty} from '../../src/render3/index';
import {ɵɵelement, ɵɵelementEnd, ɵɵelementStart, ɵɵprojection, ɵɵprojectionDef, ɵɵtemplate, ɵɵtext} from '../../src/render3/instructions/all';
import {RenderFlags} from '../../src/render3/interfaces/definition';
import {domRendererFactory3, Renderer3, RendererFactory3} from '../../src/render3/interfaces/renderer';
import {CONTEXT, HEADER_OFFSET} from '../../src/render3/interfaces/view';
import {ɵɵsanitizeUrl} from '../../src/sanitization/sanitization';
import {Sanitizer} from '../../src/sanitization/sanitizer';
import {SecurityContext} from '../../src/sanitization/security';
import {NgIf} from './common_with_def';
import {ComponentFixture, MockRendererFactory, renderToHtml} from './render_util';
describe('render3 integration test', () => {
describe('render', () => {
describe('text bindings', () => {
it('should support creation-time values in text nodes', () => {
function Template(rf: RenderFlags, value: string) {
if (rf & RenderFlags.Create) {
ɵɵtext(0, value);
}
}
expect(renderToHtml(Template, 'once', 1, 1)).toEqual('once');
expect(renderToHtml(Template, 'twice', 1, 1)).toEqual('once');
expect(ngDevMode).toHaveProperties({
firstCreatePass: 0,
tNode: 2,
tView: 2, // 1 for root view, 1 for template
rendererSetText: 1,
});
});
});
});
});
describe('component styles', () => {
it('should pass in the component styles directly into the underlying renderer', () => {
class StyledComp {
static ɵfac = () => new StyledComp();
static ɵcmp = ɵɵdefineComponent({
type: StyledComp,
styles: ['div { color: red; }'],
decls: 1,
vars: 0,
encapsulation: 100,
selectors: [['foo']],
template:
(rf: RenderFlags, ctx: StyledComp) => {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'div');
}
}
});
}
const rendererFactory = new ProxyRenderer3Factory();
new ComponentFixture(StyledComp, {rendererFactory});
expect(rendererFactory.lastCapturedType!.styles).toEqual(['div { color: red; }']);
expect(rendererFactory.lastCapturedType!.encapsulation).toEqual(100);
});
});
describe('component animations', () => {
it('should pass in the component styles directly into the underlying renderer', () => {
const animA = {name: 'a'};
const animB = {name: 'b'};
class AnimComp {
static ɵfac = () => new AnimComp();
static ɵcmp = ɵɵdefineComponent({
type: AnimComp,
decls: 0,
vars: 0,
data: {
animation:
[
animA,
animB,
],
},
selectors: [['foo']],
template: (rf: RenderFlags, ctx: AnimComp) => {}
});
}
const rendererFactory = new ProxyRenderer3Factory();
new ComponentFixture(AnimComp, {rendererFactory});
const capturedAnimations = rendererFactory.lastCapturedType!.data!['animation'];
expect(Array.isArray(capturedAnimations)).toBeTruthy();
expect(capturedAnimations.length).toEqual(2);
expect(capturedAnimations).toContain(animA);
expect(capturedAnimations).toContain(animB);
});
it('should include animations in the renderType data array even if the array is empty', () => {
class AnimComp {
static ɵfac = () => new AnimComp();
static ɵcmp = ɵɵdefineComponent({
type: AnimComp,
decls: 0,
vars: 0,
data: {
animation: [],
},
selectors: [['foo']],
template: (rf: RenderFlags, ctx: AnimComp) => {}
});
}
const rendererFactory = new ProxyRenderer3Factory();
new ComponentFixture(AnimComp, {rendererFactory});
const data = rendererFactory.lastCapturedType!.data;
expect(data.animation).toEqual([]);
});
it('should allow [@trigger] bindings to be picked up by the underlying renderer', () => {
class AnimComp {
static ɵfac = () => new AnimComp();
static ɵcmp = ɵɵdefineComponent({
type: AnimComp,
decls: 1,
vars: 1,
selectors: [['foo']],
consts: [[AttributeMarker.Bindings, '@fooAnimation']],
template:
(rf: RenderFlags, ctx: AnimComp) => {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'div', 0);
}
if (rf & RenderFlags.Update) {
ɵɵattribute('@fooAnimation', ctx.animationValue);
}
}
});
animationValue = '123';
}
const rendererFactory = new MockRendererFactory(['setAttribute']);
const fixture = new ComponentFixture(AnimComp, {rendererFactory});
const renderer = rendererFactory.lastRenderer!;
fixture.component.animationValue = '456';
fixture.update();
const spy = renderer.spies['setAttribute'];
const [elm, attr, value] = spy.calls.mostRecent().args;
expect(attr).toEqual('@fooAnimation');
expect(value).toEqual('456');
});
it('should allow creation-level [@trigger] properties to be picked up by the underlying renderer',
() => {
class AnimComp {
static ɵfac = () => new AnimComp();
static ɵcmp = ɵɵdefineComponent({
type: AnimComp,
decls: 1,
vars: 1,
selectors: [['foo']],
consts: [['@fooAnimation', '']],
template:
(rf: RenderFlags, ctx: AnimComp) => {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'div', 0);
}
}
});
}
const rendererFactory = new MockRendererFactory(['setProperty']);
const fixture = new ComponentFixture(AnimComp, {rendererFactory});
const renderer = rendererFactory.lastRenderer!;
fixture.update();
const spy = renderer.spies['setProperty'];
const [elm, attr, value] = spy.calls.mostRecent().args;
expect(attr).toEqual('@fooAnimation');
});
// TODO(benlesh): this test does not seem to be testing anything we could actually generate with
// these instructions. ɵɵbind should be present in the ɵɵelementProperty call in the hostBindings,
// however adding that causes an error because the slot has not been allocated. There is a
// directive called `comp-with-anim`, that seems to want to be a component, but is defined as a
// directive that is looking for a property `@fooAnim` to update.
// it('should allow host binding animations to be picked up and rendered', () => {
// class ChildCompWithAnim {
// static ɵfac = () => new ChildCompWithAnim();
// static ɵdir = ɵɵdefineDirective({
// type: ChildCompWithAnim,
// selectors: [['child-comp-with-anim']],
// hostBindings: function(rf: RenderFlags, ctx: any, elementIndex: number): void {
// if (rf & RenderFlags.Update) {
// ɵɵelementProperty(0, '@fooAnim', ctx.exp);
// }
// },
// });
// exp = 'go';
// }
// class ParentComp {
// static ɵfac = () => new ParentComp();
// static ɵcmp = ɵɵdefineComponent({
// type: ParentComp,
// decls: 1,
// vars: 1,
// selectors: [['foo']],
// template: (rf: RenderFlags, ctx: ParentComp) => {
// if (rf & RenderFlags.Create) {
// ɵɵelement(0, 'child-comp-with-anim');
// }
// },
// directives: [ChildCompWithAnim]
// });
// }
// const rendererFactory = new MockRendererFactory(['setProperty']);
// const fixture = new ComponentFixture(ParentComp, {rendererFactory});
// const renderer = rendererFactory.lastRenderer !;
// fixture.update();
// const spy = renderer.spies['setProperty'];
// const [elm, attr, value] = spy.calls.mostRecent().args;
// expect(attr).toEqual('@fooAnim');
// });
});
describe('element discovery', () => {
it('should only monkey-patch immediate child nodes in a component', () => {
class StructuredComp {
static ɵfac = () => new StructuredComp();
static ɵcmp = ɵɵdefineComponent({
type: StructuredComp,
selectors: [['structured-comp']],
decls: 2,
vars: 0,
template:
(rf: RenderFlags, ctx: StructuredComp) => {
if (rf & RenderFlags.Create) {
ɵɵelementStart(0, 'div');
ɵɵelementStart(1, 'p');
ɵɵelementEnd();
ɵɵelementEnd();
}
if (rf & RenderFlags.Update) {
}
}
});
}
const fixture = new ComponentFixture(StructuredComp);
fixture.update();
const host = fixture.hostElement;
const parent = host.querySelector('div') as any;
const child = host.querySelector('p') as any;
expect(readPatchedData(parent)).toBeTruthy();
expect(readPatchedData(child)).toBeFalsy();
});
it('should only monkey-patch immediate child nodes in a sub component', () => {
class ChildComp {
static ɵfac = () => new ChildComp();
static ɵcmp = ɵɵdefineComponent({
type: ChildComp,
selectors: [['child-comp']],
decls: 3,
vars: 0,
template:
(rf: RenderFlags, ctx: ChildComp) => {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'div');
ɵɵelement(1, 'div');
ɵɵelement(2, 'div');
}
}
});
}
class ParentComp {
static ɵfac = () => new ParentComp();
static ɵcmp = ɵɵdefineComponent({
type: ParentComp,
selectors: [['parent-comp']],
directives: [ChildComp],
decls: 2,
vars: 0,
template:
(rf: RenderFlags, ctx: ParentComp) => {
if (rf & RenderFlags.Create) {
ɵɵelementStart(0, 'section');
ɵɵelementStart(1, 'child-comp');
ɵɵelementEnd();
ɵɵelementEnd();
}
}
});
}
const fixture = new ComponentFixture(ParentComp);
fixture.update();
const host = fixture.hostElement;
const child = host.querySelector('child-comp') as any;
expect(readPatchedData(child)).toBeTruthy();
const [kid1, kid2, kid3] = Array.from(host.querySelectorAll('child-comp > *'));
expect(readPatchedData(kid1)).toBeTruthy();
expect(readPatchedData(kid2)).toBeTruthy();
expect(readPatchedData(kid3)).toBeTruthy();
});
it('should only monkey-patch immediate child nodes in an embedded template container', () => {
class StructuredComp {
static ɵfac = () => new StructuredComp();
static ɵcmp = ɵɵdefineComponent({
type: StructuredComp,
selectors: [['structured-comp']],
directives: [NgIf],
decls: 2,
vars: 1,
consts: [['ngIf', '']],
template:
(rf: RenderFlags, ctx: StructuredComp) => {
if (rf & RenderFlags.Create) {
ɵɵelementStart(0, 'section');
ɵɵtemplate(1, (rf, ctx) => {
if (rf & RenderFlags.Create) {
ɵɵelementStart(0, 'div');
ɵɵelement(1, 'p');
ɵɵelementEnd();
ɵɵelement(2, 'div');
}
}, 3, 0, 'ng-template', 0);
ɵɵelementEnd();
}
if (rf & RenderFlags.Update) {
ɵɵadvance(1);
ɵɵproperty('ngIf', true);
}
}
});
}
const fixture = new ComponentFixture(StructuredComp);
fixture.update();
const host = fixture.hostElement;
const [section, div1, p, div2] = Array.from(host.querySelectorAll('section, div, p'));
expect(section.nodeName.toLowerCase()).toBe('section');
expect(readPatchedData(section)).toBeTruthy();
expect(div1.nodeName.toLowerCase()).toBe('div');
expect(readPatchedData(div1)).toBeTruthy();
expect(p.nodeName.toLowerCase()).toBe('p');
expect(readPatchedData(p)).toBeFalsy();
expect(div2.nodeName.toLowerCase()).toBe('div');
expect(readPatchedData(div2)).toBeTruthy();
});
it('should return a context object from a given dom node', () => {
class StructuredComp {
static ɵfac = () => new StructuredComp();
static ɵcmp = ɵɵdefineComponent({
type: StructuredComp,
selectors: [['structured-comp']],
directives: [NgIf],
decls: 2,
vars: 0,
template:
(rf: RenderFlags, ctx: StructuredComp) => {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'section');
ɵɵelement(1, 'div');
}
}
});
}
const fixture = new ComponentFixture(StructuredComp);
fixture.update();
const section = fixture.hostElement.querySelector('section')!;
const sectionContext = getLContext(section)!;
const sectionLView = sectionContext.lView!;
expect(sectionContext.nodeIndex).toEqual(HEADER_OFFSET);
expect(sectionLView.length).toBeGreaterThan(HEADER_OFFSET);
expect(sectionContext.native).toBe(section);
const div = fixture.hostElement.querySelector('div')!;
const divContext = getLContext(div)!;
const divLView = divContext.lView!;
expect(divContext.nodeIndex).toEqual(HEADER_OFFSET + 1);
expect(divLView.length).toBeGreaterThan(HEADER_OFFSET);
expect(divContext.native).toBe(div);
expect(divLView).toBe(sectionLView);
});
it('should cache the element context on a element was pre-emptively monkey-patched', () => {
class StructuredComp {
static ɵfac = () => new StructuredComp();
static ɵcmp = ɵɵdefineComponent({
type: StructuredComp,
selectors: [['structured-comp']],
decls: 1,
vars: 0,
template:
(rf: RenderFlags, ctx: StructuredComp) => {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'section');
}
}
});
}
const fixture = new ComponentFixture(StructuredComp);
fixture.update();
const section = fixture.hostElement.querySelector('section')! as any;
const result1 = readPatchedData(section);
expect(Array.isArray(result1)).toBeTruthy();
const context = getLContext(section)!;
const result2 = readPatchedData(section) as any;
expect(Array.isArray(result2)).toBeFalsy();
expect(result2).toBe(context);
expect(result2.lView).toBe(result1);
});
it('should cache the element context on an intermediate element that isn\'t pre-emptively monkey-patched',
() => {
class StructuredComp {
static ɵfac = () => new StructuredComp();
static ɵcmp = ɵɵdefineComponent({
type: StructuredComp,
selectors: [['structured-comp']],
decls: 2,
vars: 0,
template:
(rf: RenderFlags, ctx: StructuredComp) => {
if (rf & RenderFlags.Create) {
ɵɵelementStart(0, 'section');
ɵɵelement(1, 'p');
ɵɵelementEnd();
}
}
});
}
const fixture = new ComponentFixture(StructuredComp);
fixture.update();
const section = fixture.hostElement.querySelector('section')! as any;
expect(readPatchedData(section)).toBeTruthy();
const p = fixture.hostElement.querySelector('p')! as any;
expect(readPatchedData(p)).toBeFalsy();
const pContext = getLContext(p)!;
expect(pContext.native).toBe(p);
expect(readPatchedData(p)).toBe(pContext);
});
it('should be able to pull in element context data even if the element is decorated using styling',
() => {
class StructuredComp {
static ɵfac = () => new StructuredComp();
static ɵcmp = ɵɵdefineComponent({
type: StructuredComp,
selectors: [['structured-comp']],
decls: 1,
vars: 0,
template:
(rf: RenderFlags, ctx: StructuredComp) => {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'section');
}
}
});
}
const fixture = new ComponentFixture(StructuredComp);
fixture.update();
const section = fixture.hostElement.querySelector('section')! as any;
const result1 = readPatchedData(section) as any;
expect(Array.isArray(result1)).toBeTruthy();
const elementResult = result1[HEADER_OFFSET]; // first element
expect(elementResult).toBe(section);
const context = getLContext(section)!;
const result2 = readPatchedData(section);
expect(Array.isArray(result2)).toBeFalsy();
expect(context.native).toBe(section);
});
it('should monkey-patch immediate child nodes in a content-projected region with a reference to the parent component',
() => {
/*
<!-- DOM view -->
<section>
<projection-comp>
welcome
<header>
<h1>
<p>this content is projected</p>
this content is projected also
</h1>
</header>
</projection-comp>
</section>
*/
class ProjectorComp {
static ɵfac = () => new ProjectorComp();
static ɵcmp = ɵɵdefineComponent({
type: ProjectorComp,
selectors: [['projector-comp']],
decls: 4,
vars: 0,
template:
(rf: RenderFlags, ctx: ProjectorComp) => {
if (rf & RenderFlags.Create) {
ɵɵprojectionDef();
ɵɵtext(0, 'welcome');
ɵɵelementStart(1, 'header');
ɵɵelementStart(2, 'h1');
ɵɵprojection(3);
ɵɵelementEnd();
ɵɵelementEnd();
}
if (rf & RenderFlags.Update) {
}
}
});
}
class ParentComp {
static ɵfac = () => new ParentComp();
static ɵcmp = ɵɵdefineComponent({
type: ParentComp,
selectors: [['parent-comp']],
directives: [ProjectorComp],
decls: 5,
vars: 0,
template:
(rf: RenderFlags, ctx: ParentComp) => {
if (rf & RenderFlags.Create) {
ɵɵelementStart(0, 'section');
ɵɵelementStart(1, 'projector-comp');
ɵɵelementStart(2, 'p');
ɵɵtext(3, 'this content is projected');
ɵɵelementEnd();
ɵɵtext(4, 'this content is projected also');
ɵɵelementEnd();
ɵɵelementEnd();
}
}
});
}
const fixture = new ComponentFixture(ParentComp);
fixture.update();
const host = fixture.hostElement;
const textNode = host.firstChild as any;
const section = host.querySelector('section')! as any;
const projectorComp = host.querySelector('projector-comp')! as any;
const header = host.querySelector('header')! as any;
const h1 = host.querySelector('h1')! as any;
const p = host.querySelector('p')! as any;
const pText = p.firstChild as any;
const projectedTextNode = p.nextSibling;
expect(projectorComp.children).toContain(header);
expect(h1.children).toContain(p);
expect(readPatchedData(textNode)).toBeTruthy();
expect(readPatchedData(section)).toBeTruthy();
expect(readPatchedData(projectorComp)).toBeTruthy();
expect(readPatchedData(header)).toBeTruthy();
expect(readPatchedData(h1)).toBeFalsy();
expect(readPatchedData(p)).toBeTruthy();
expect(readPatchedData(pText)).toBeFalsy();
expect(readPatchedData(projectedTextNode)).toBeTruthy();
const parentContext = getLContext(section)!;
const shadowContext = getLContext(header)!;
const projectedContext = getLContext(p)!;
const parentComponentData = parentContext.lView;
const shadowComponentData = shadowContext.lView;
const projectedComponentData = projectedContext.lView;
expect(projectedComponentData).toBe(parentComponentData);
expect(shadowComponentData).not.toBe(parentComponentData);
});
it('should return `null` when an element context is retrieved that isn\'t situated in Angular',
() => {
const elm1 = document.createElement('div');
const context1 = getLContext(elm1);
expect(context1).toBeFalsy();
const elm2 = document.createElement('div');
document.body.appendChild(elm2);
const context2 = getLContext(elm2);
expect(context2).toBeFalsy();
});
it('should return `null` when an element context is retrieved that is a DOM node that was not created by Angular',
() => {
class StructuredComp {
static ɵfac = () => new StructuredComp();
static ɵcmp = ɵɵdefineComponent({
type: StructuredComp,
selectors: [['structured-comp']],
decls: 1,
vars: 0,
template:
(rf: RenderFlags, ctx: StructuredComp) => {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'section');
}
}
});
}
const fixture = new ComponentFixture(StructuredComp);
fixture.update();
const section = fixture.hostElement.querySelector('section')! as any;
const manuallyCreatedElement = document.createElement('div');
section.appendChild(manuallyCreatedElement);
const context = getLContext(manuallyCreatedElement);
expect(context).toBeFalsy();
});
it('should by default monkey-patch the bootstrap component with context details', () => {
class StructuredComp {
static ɵfac = () => new StructuredComp();
static ɵcmp = ɵɵdefineComponent({
type: StructuredComp,
selectors: [['structured-comp']],
decls: 0,
vars: 0,
template: (rf: RenderFlags, ctx: StructuredComp) => {}
});
}
const fixture = new ComponentFixture(StructuredComp);
fixture.update();
const hostElm = fixture.hostElement;
const component = fixture.component;
const componentLView = readPatchedData(component);
expect(Array.isArray(componentLView)).toBeTruthy();
const hostLView = readPatchedData(hostElm) as any;
expect(hostLView).toBe(componentLView);
const context1 = getLContext(hostElm)!;
expect(context1.lView).toBe(hostLView);
expect(context1.native).toEqual(hostElm);
const context2 = getLContext(component)!;
expect(context2).toBe(context1);
expect(context2.lView).toBe(hostLView);
expect(context2.native).toEqual(hostElm);
});
it('should by default monkey-patch the directives with LView so that they can be examined',
() => {
let myDir1Instance: MyDir1|null = null;
let myDir2Instance: MyDir2|null = null;
let myDir3Instance: MyDir2|null = null;
class MyDir1 {
static ɵfac = () => myDir1Instance = new MyDir1();
static ɵdir = ɵɵdefineDirective({type: MyDir1, selectors: [['', 'my-dir-1', '']]});
}
class MyDir2 {
static ɵfac = () => myDir2Instance = new MyDir2();
static ɵdir = ɵɵdefineDirective({type: MyDir2, selectors: [['', 'my-dir-2', '']]});
}
class MyDir3 {
static ɵfac = () => myDir3Instance = new MyDir2();
static ɵdir = ɵɵdefineDirective({type: MyDir3, selectors: [['', 'my-dir-3', '']]});
}
class StructuredComp {
static ɵfac = () => new StructuredComp();
static ɵcmp = ɵɵdefineComponent({
type: StructuredComp,
selectors: [['structured-comp']],
directives: [MyDir1, MyDir2, MyDir3],
decls: 2,
vars: 0,
consts: [['my-dir-1', '', 'my-dir-2', ''], ['my-dir-3']],
template:
(rf: RenderFlags, ctx: StructuredComp) => {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'div', 0);
ɵɵelement(1, 'div', 1);
}
}
});
}
const fixture = new ComponentFixture(StructuredComp);
fixture.update();
const hostElm = fixture.hostElement;
const div1 = hostElm.querySelector('div:first-child')! as any;
const div2 = hostElm.querySelector('div:last-child')! as any;
const context = getLContext(hostElm)!;
const componentView = context.lView[context.nodeIndex];
expect(componentView).toContain(myDir1Instance);
expect(componentView).toContain(myDir2Instance);
expect(componentView).toContain(myDir3Instance);
expect(Array.isArray(readPatchedData(myDir1Instance))).toBeTruthy();
expect(Array.isArray(readPatchedData(myDir2Instance))).toBeTruthy();
expect(Array.isArray(readPatchedData(myDir3Instance))).toBeTruthy();
const d1Context = getLContext(myDir1Instance)!;
const d2Context = getLContext(myDir2Instance)!;
const d3Context = getLContext(myDir3Instance)!;
expect(d1Context.lView).toEqual(componentView);
expect(d2Context.lView).toEqual(componentView);
expect(d3Context.lView).toEqual(componentView);
expect(readPatchedData(myDir1Instance)).toBe(d1Context);
expect(readPatchedData(myDir2Instance)).toBe(d2Context);
expect(readPatchedData(myDir3Instance)).toBe(d3Context);
expect(d1Context.nodeIndex).toEqual(HEADER_OFFSET);
expect(d1Context.native).toBe(div1);
expect(d1Context.directives as any[]).toEqual([myDir1Instance, myDir2Instance]);
expect(d2Context.nodeIndex).toEqual(HEADER_OFFSET);
expect(d2Context.native).toBe(div1);
expect(d2Context.directives as any[]).toEqual([myDir1Instance, myDir2Instance]);
expect(d3Context.nodeIndex).toEqual(HEADER_OFFSET + 1);
expect(d3Context.native).toBe(div2);
expect(d3Context.directives as any[]).toEqual([myDir3Instance]);
});
it('should monkey-patch the exact same context instance of the DOM node, component and any directives on the same element',
() => {
let myDir1Instance: MyDir1|null = null;
let myDir2Instance: MyDir2|null = null;
let childComponentInstance: ChildComp|null = null;
class MyDir1 {
static ɵfac = () => myDir1Instance = new MyDir1();
static ɵdir = ɵɵdefineDirective({type: MyDir1, selectors: [['', 'my-dir-1', '']]});
}
class MyDir2 {
static ɵfac = () => myDir2Instance = new MyDir2();
static ɵdir = ɵɵdefineDirective({type: MyDir2, selectors: [['', 'my-dir-2', '']]});
}
class ChildComp {
static ɵfac = () => childComponentInstance = new ChildComp();
static ɵcmp = ɵɵdefineComponent({
type: ChildComp,
selectors: [['child-comp']],
decls: 1,
vars: 0,
template:
(rf: RenderFlags, ctx: ChildComp) => {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'div');
}
}
});
}
class ParentComp {
static ɵfac = () => new ParentComp();
static ɵcmp = ɵɵdefineComponent({
type: ParentComp,
selectors: [['parent-comp']],
directives: [ChildComp, MyDir1, MyDir2],
decls: 1,
vars: 0,
consts: [['my-dir-1', '', 'my-dir-2', '']],
template:
(rf: RenderFlags, ctx: ParentComp) => {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'child-comp', 0);
}
}
});
}
const fixture = new ComponentFixture(ParentComp);
fixture.update();
const childCompHostElm = fixture.hostElement.querySelector('child-comp')! as any;
const lView = readPatchedData(childCompHostElm);
expect(Array.isArray(lView)).toBeTruthy();
expect(readPatchedData(myDir1Instance)).toBe(lView);
expect(readPatchedData(myDir2Instance)).toBe(lView);
expect(readPatchedData(childComponentInstance)).toBe(lView);
const childNodeContext = getLContext(childCompHostElm)!;
expect(childNodeContext.component).toBeFalsy();
expect(childNodeContext.directives).toBeFalsy();
assertMonkeyPatchValueIsLView(myDir1Instance);
assertMonkeyPatchValueIsLView(myDir2Instance);
assertMonkeyPatchValueIsLView(childComponentInstance);
expect(getLContext(myDir1Instance)).toBe(childNodeContext);
expect(childNodeContext.component).toBeFalsy();
expect(childNodeContext.directives!.length).toEqual(2);
assertMonkeyPatchValueIsLView(myDir1Instance, false);
assertMonkeyPatchValueIsLView(myDir2Instance, false);
assertMonkeyPatchValueIsLView(childComponentInstance);
expect(getLContext(myDir2Instance)).toBe(childNodeContext);
expect(childNodeContext.component).toBeFalsy();
expect(childNodeContext.directives!.length).toEqual(2);
assertMonkeyPatchValueIsLView(myDir1Instance, false);
assertMonkeyPatchValueIsLView(myDir2Instance, false);
assertMonkeyPatchValueIsLView(childComponentInstance);
expect(getLContext(childComponentInstance)).toBe(childNodeContext);
expect(childNodeContext.component).toBeTruthy();
expect(childNodeContext.directives!.length).toEqual(2);
assertMonkeyPatchValueIsLView(myDir1Instance, false);
assertMonkeyPatchValueIsLView(myDir2Instance, false);
assertMonkeyPatchValueIsLView(childComponentInstance, false);
function assertMonkeyPatchValueIsLView(value: any, yesOrNo = true) {
expect(Array.isArray(readPatchedData(value))).toBe(yesOrNo);
}
});
it('should monkey-patch sub components with the view data and then replace them with the context result once a lookup occurs',
() => {
class ChildComp {
static ɵfac = () => new ChildComp();
static ɵcmp = ɵɵdefineComponent({
type: ChildComp,
selectors: [['child-comp']],
decls: 3,
vars: 0,
template:
(rf: RenderFlags, ctx: ChildComp) => {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'div');
ɵɵelement(1, 'div');
ɵɵelement(2, 'div');
}
}
});
}
class ParentComp {
static ɵfac = () => new ParentComp();
static ɵcmp = ɵɵdefineComponent({
type: ParentComp,
selectors: [['parent-comp']],
directives: [ChildComp],
decls: 2,
vars: 0,
template:
(rf: RenderFlags, ctx: ParentComp) => {
if (rf & RenderFlags.Create) {
ɵɵelementStart(0, 'section');
ɵɵelementStart(1, 'child-comp');
ɵɵelementEnd();
ɵɵelementEnd();
}
}
});
}
const fixture = new ComponentFixture(ParentComp);
fixture.update();
const host = fixture.hostElement;
const child = host.querySelector('child-comp') as any;
expect(readPatchedData(child)).toBeTruthy();
const context = getLContext(child)!;
expect(readPatchedData(child)).toBeTruthy();
const componentData = context.lView[context.nodeIndex];
const component = componentData[CONTEXT];
expect(component instanceof ChildComp).toBeTruthy();
expect(readPatchedData(component)).toBe(context.lView);
const componentContext = getLContext(component)!;
expect(readPatchedData(component)).toBe(componentContext);
expect(componentContext.nodeIndex).toEqual(context.nodeIndex);
expect(componentContext.native).toEqual(context.native);
expect(componentContext.lView).toEqual(context.lView);
});
});
describe('sanitization', () => {
it('should sanitize data using the provided sanitization interface', () => {
class SanitizationComp {
static ɵfac = () => new SanitizationComp();
static ɵcmp = ɵɵdefineComponent({
type: SanitizationComp,
selectors: [['sanitize-this']],
decls: 1,
vars: 1,
template:
(rf: RenderFlags, ctx: SanitizationComp) => {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'a');
}
if (rf & RenderFlags.Update) {
ɵɵproperty('href', ctx.href, ɵɵsanitizeUrl);
}
}
});
private href = '';
updateLink(href: any) {
this.href = href;
}
}
const sanitizer = new LocalSanitizer((value) => {
return 'http://bar';
});
const fixture = new ComponentFixture(SanitizationComp, {sanitizer});
fixture.component.updateLink('http://foo');
fixture.update();
const anchor = fixture.hostElement.querySelector('a')!;
expect(anchor.getAttribute('href')).toEqual('http://bar');
fixture.component.updateLink(sanitizer.bypassSecurityTrustUrl('http://foo'));
fixture.update();
expect(anchor.getAttribute('href')).toEqual('http://foo');
});
it('should sanitize HostBindings data using provided sanitization interface', () => {
let hostBindingDir: UnsafeUrlHostBindingDir;
class UnsafeUrlHostBindingDir {
// @HostBinding()
cite: any = 'http://cite-dir-value';
static ɵfac = () => hostBindingDir = new UnsafeUrlHostBindingDir();
static ɵdir = ɵɵdefineDirective({
type: UnsafeUrlHostBindingDir,
selectors: [['', 'unsafeUrlHostBindingDir', '']],
hostVars: 1,
hostBindings:
(rf: RenderFlags, ctx: any) => {
if (rf & RenderFlags.Update) {
ɵɵhostProperty('cite', ctx.cite, ɵɵsanitizeUrl);
}
}
});
}
class SimpleComp {
static ɵfac = () => new SimpleComp();
static ɵcmp = ɵɵdefineComponent({
type: SimpleComp,
selectors: [['sanitize-this']],
decls: 1,
vars: 0,
consts: [['unsafeUrlHostBindingDir', '']],
template:
(rf: RenderFlags, ctx: SimpleComp) => {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'blockquote', 0);
}
},
directives: [UnsafeUrlHostBindingDir]
});
}
const sanitizer = new LocalSanitizer((value) => 'http://bar');
const fixture = new ComponentFixture(SimpleComp, {sanitizer});
hostBindingDir!.cite = 'http://foo';
fixture.update();
const anchor = fixture.hostElement.querySelector('blockquote')!;
expect(anchor.getAttribute('cite')).toEqual('http://bar');
hostBindingDir!.cite = sanitizer.bypassSecurityTrustUrl('http://foo');
fixture.update();
expect(anchor.getAttribute('cite')).toEqual('http://foo');
});
});
class LocalSanitizedValue {
constructor(public value: any) {}
toString() {
return this.value;
}
}
class LocalSanitizer implements Sanitizer {
constructor(private _interceptor: (value: string|null|any) => string) {}
sanitize(context: SecurityContext, value: LocalSanitizedValue|string|null): string|null {
if (value instanceof LocalSanitizedValue) {
return value.toString();
}
return this._interceptor(value);
}
bypassSecurityTrustHtml(value: string) {}
bypassSecurityTrustStyle(value: string) {}
bypassSecurityTrustScript(value: string) {}
bypassSecurityTrustResourceUrl(value: string) {}
bypassSecurityTrustUrl(value: string) {
return new LocalSanitizedValue(value);
}
}
class ProxyRenderer3Factory implements RendererFactory3 {
lastCapturedType: RendererType2|null = null;
createRenderer(hostElement: RElement|null, rendererType: RendererType2|null): Renderer3 {
this.lastCapturedType = rendererType;
return domRendererFactory3.createRenderer(hostElement, rendererType);
}
}