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

2696 lines
91 KiB
TypeScript

/**
* @license
* Copyright Google Inc. 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 {ElementRef, TemplateRef, ViewContainerRef} from '@angular/core';
import {RendererStyleFlags2, RendererType2} from '../../src/render/api';
import {AttributeMarker, defineComponent, defineDirective, templateRefExtractor} from '../../src/render3/index';
import {bind, container, containerRefreshEnd, containerRefreshStart, element, elementAttribute, elementClassProp, elementContainerEnd, elementContainerStart, elementEnd, elementProperty, elementStart, elementStyleProp, elementStyling, elementStylingApply, embeddedViewEnd, embeddedViewStart, interpolation1, interpolation2, interpolation3, interpolation4, interpolation5, interpolation6, interpolation7, interpolation8, interpolationV, load, projection, projectionDef, reference, text, textBinding, template, elementStylingMap, directiveInject} from '../../src/render3/instructions';
import {InitialStylingFlags, RenderFlags} from '../../src/render3/interfaces/definition';
import {RElement, Renderer3, RendererFactory3, domRendererFactory3, RText, RComment, RNode, RendererStyleFlags3, ProceduralRenderer3} from '../../src/render3/interfaces/renderer';
import {NO_CHANGE} from '../../src/render3/tokens';
import {HEADER_OFFSET, CONTEXT} from '../../src/render3/interfaces/view';
import {enableBindings, disableBindings} from '../../src/render3/state';
import {sanitizeUrl} from '../../src/sanitization/sanitization';
import {Sanitizer, SecurityContext} from '../../src/sanitization/security';
import {NgIf} from './common_with_def';
import {ComponentFixture, TemplateFixture, createComponent, renderToHtml} from './render_util';
import {getContext} from '../../src/render3/context_discovery';
import {StylingIndex} from '../../src/render3/interfaces/styling';
import {MONKEY_PATCH_KEY_NAME} from '../../src/render3/interfaces/context';
describe('render3 integration test', () => {
describe('render', () => {
it('should render basic template', () => {
expect(renderToHtml(Template, {}, 2)).toEqual('<span title="Hello">Greetings</span>');
function Template(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
elementStart(0, 'span', ['title', 'Hello']);
{ text(1, 'Greetings'); }
elementEnd();
}
}
expect(ngDevMode).toHaveProperties({
firstTemplatePass: 1,
tNode: 3, // 1 for div, 1 for text, 1 for host element
tView: 2, // 1 for root view, 1 for template
rendererCreateElement: 1,
});
});
it('should render and update basic "Hello, World" template', () => {
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
elementStart(0, 'h1');
{ text(1); }
elementEnd();
}
if (rf & RenderFlags.Update) {
textBinding(1, interpolation1('Hello, ', ctx.name, '!'));
}
}, 2, 1);
const fixture = new ComponentFixture(App);
fixture.component.name = 'World';
fixture.update();
expect(fixture.html).toEqual('<h1>Hello, World!</h1>');
fixture.component.name = 'New World';
fixture.update();
expect(fixture.html).toEqual('<h1>Hello, New World!</h1>');
});
});
describe('text bindings', () => {
it('should render "undefined" as "" when used with `bind()`', () => {
function Template(rf: RenderFlags, name: string) {
if (rf & RenderFlags.Create) {
text(0);
}
if (rf & RenderFlags.Update) {
textBinding(0, bind(name));
}
}
expect(renderToHtml(Template, 'benoit', 1, 1)).toEqual('benoit');
expect(renderToHtml(Template, undefined, 1, 1)).toEqual('');
expect(ngDevMode).toHaveProperties({
firstTemplatePass: 0,
tNode: 2,
tView: 2, // 1 for root view, 1 for template
rendererSetText: 2,
});
});
it('should render "null" as "" when used with `bind()`', () => {
function Template(rf: RenderFlags, name: string) {
if (rf & RenderFlags.Create) {
text(0);
}
if (rf & RenderFlags.Update) {
textBinding(0, bind(name));
}
}
expect(renderToHtml(Template, 'benoit', 1, 1)).toEqual('benoit');
expect(renderToHtml(Template, null, 1, 1)).toEqual('');
expect(ngDevMode).toHaveProperties({
firstTemplatePass: 0,
tNode: 2,
tView: 2, // 1 for root view, 1 for template
rendererSetText: 2,
});
});
it('should support creation-time values in text nodes', () => {
function Template(rf: RenderFlags, value: string) {
if (rf & RenderFlags.Create) {
text(0);
}
if (rf & RenderFlags.Update) {
textBinding(0, rf & RenderFlags.Create ? value : NO_CHANGE);
}
}
expect(renderToHtml(Template, 'once', 1, 1)).toEqual('once');
expect(renderToHtml(Template, 'twice', 1, 1)).toEqual('once');
expect(ngDevMode).toHaveProperties({
firstTemplatePass: 0,
tNode: 2,
tView: 2, // 1 for root view, 1 for template
rendererSetText: 1,
});
});
});
describe('ngNonBindable handling', () => {
it('should keep local ref for host element', () => {
/**
* <b ngNonBindable #myRef id="my-id">
* <i>Hello {{ name }}!</i>
* </b>
* {{ myRef.id }}
*/
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
elementStart(0, 'b', ['id', 'my-id'], ['myRef', '']);
disableBindings();
elementStart(2, 'i');
text(3, 'Hello {{ name }}!');
elementEnd();
enableBindings();
elementEnd();
text(4);
}
if (rf & RenderFlags.Update) {
const ref = reference(1) as any;
textBinding(4, interpolation1(' ', ref.id, ' '));
}
}, 5, 1);
const fixture = new ComponentFixture(App);
expect(fixture.html).toEqual('<b id="my-id"><i>Hello {{ name }}!</i></b> my-id ');
});
it('should invoke directives for host element', () => {
let directiveInvoked: boolean = false;
class TestDirective {
ngOnInit() { directiveInvoked = true; }
static ngDirectiveDef = defineDirective({
type: TestDirective,
selectors: [['', 'directive', '']],
factory: () => new TestDirective()
});
}
/**
* <b ngNonBindable directive>
* <i>Hello {{ name }}!</i>
* </b>
*/
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
elementStart(0, 'b', ['directive', '']);
disableBindings();
elementStart(1, 'i');
text(2, 'Hello {{ name }}!');
elementEnd();
enableBindings();
elementEnd();
}
}, 3, 0, [TestDirective]);
const fixture = new ComponentFixture(App);
expect(fixture.html).toEqual('<b directive=""><i>Hello {{ name }}!</i></b>');
expect(directiveInvoked).toEqual(true);
});
it('should not invoke directives for nested elements', () => {
let directiveInvoked: boolean = false;
class TestDirective {
ngOnInit() { directiveInvoked = true; }
static ngDirectiveDef = defineDirective({
type: TestDirective,
selectors: [['', 'directive', '']],
factory: () => new TestDirective()
});
}
/**
* <b ngNonBindable>
* <i directive>Hello {{ name }}!</i>
* </b>
*/
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
elementStart(0, 'b');
disableBindings();
elementStart(1, 'i', ['directive', '']);
text(2, 'Hello {{ name }}!');
elementEnd();
enableBindings();
elementEnd();
}
}, 3, 0, [TestDirective]);
const fixture = new ComponentFixture(App);
expect(fixture.html).toEqual('<b><i directive="">Hello {{ name }}!</i></b>');
expect(directiveInvoked).toEqual(false);
});
});
describe('Siblings update', () => {
it('should handle a flat list of static/bound text nodes', () => {
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
text(0, 'Hello ');
text(1);
text(2, '!');
}
if (rf & RenderFlags.Update) {
textBinding(1, bind(ctx.name));
}
}, 3, 1);
const fixture = new ComponentFixture(App);
fixture.component.name = 'world';
fixture.update();
expect(fixture.html).toEqual('Hello world!');
fixture.component.name = 'monde';
fixture.update();
expect(fixture.html).toEqual('Hello monde!');
});
it('should handle a list of static/bound text nodes as element children', () => {
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
elementStart(0, 'b');
{
text(1, 'Hello ');
text(2);
text(3, '!');
}
elementEnd();
}
if (rf & RenderFlags.Update) {
textBinding(2, bind(ctx.name));
}
}, 4, 1);
const fixture = new ComponentFixture(App);
fixture.component.name = 'world';
fixture.update();
expect(fixture.html).toEqual('<b>Hello world!</b>');
fixture.component.name = 'mundo';
fixture.update();
expect(fixture.html).toEqual('<b>Hello mundo!</b>');
});
it('should render/update text node as a child of a deep list of elements', () => {
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
elementStart(0, 'b');
{
elementStart(1, 'b');
{
elementStart(2, 'b');
{
elementStart(3, 'b');
{ text(4); }
elementEnd();
}
elementEnd();
}
elementEnd();
}
elementEnd();
}
if (rf & RenderFlags.Update) {
textBinding(4, interpolation1('Hello ', ctx.name, '!'));
}
}, 5, 1);
const fixture = new ComponentFixture(App);
fixture.component.name = 'world';
fixture.update();
expect(fixture.html).toEqual('<b><b><b><b>Hello world!</b></b></b></b>');
fixture.component.name = 'mundo';
fixture.update();
expect(fixture.html).toEqual('<b><b><b><b>Hello mundo!</b></b></b></b>');
});
it('should update 2 sibling elements', () => {
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
elementStart(0, 'b');
{
element(1, 'span');
elementStart(2, 'span', ['class', 'foo']);
{}
elementEnd();
}
elementEnd();
}
if (rf & RenderFlags.Update) {
elementAttribute(2, 'id', bind(ctx.id));
}
}, 3, 1);
const fixture = new ComponentFixture(App);
fixture.component.id = 'foo';
fixture.update();
expect(fixture.html).toEqual('<b><span></span><span class="foo" id="foo"></span></b>');
fixture.component.id = 'bar';
fixture.update();
expect(fixture.html).toEqual('<b><span></span><span class="foo" id="bar"></span></b>');
});
it('should handle sibling text node after element with child text node', () => {
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
elementStart(0, 'p');
{ text(1, 'hello'); }
elementEnd();
text(2, 'world');
}
}, 3);
const fixture = new ComponentFixture(App);
expect(fixture.html).toEqual('<p>hello</p>world');
});
});
describe('basic components', () => {
class TodoComponent {
value = ' one';
static ngComponentDef = defineComponent({
type: TodoComponent,
selectors: [['todo']],
consts: 3,
vars: 1,
template: function TodoTemplate(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
elementStart(0, 'p');
{
text(1, 'Todo');
text(2);
}
elementEnd();
}
if (rf & RenderFlags.Update) {
textBinding(2, bind(ctx.value));
}
},
factory: () => new TodoComponent
});
}
const defs = [TodoComponent];
it('should support a basic component template', () => {
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
element(0, 'todo');
}
}, 1, 0, defs);
const fixture = new ComponentFixture(App);
expect(fixture.html).toEqual('<todo><p>Todo one</p></todo>');
});
it('should support a component template with sibling', () => {
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
element(0, 'todo');
text(1, 'two');
}
}, 2, 0, defs);
const fixture = new ComponentFixture(App);
expect(fixture.html).toEqual('<todo><p>Todo one</p></todo>two');
});
it('should support a component template with component sibling', () => {
/**
* <todo></todo>
* <todo></todo>
*/
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
element(0, 'todo');
element(1, 'todo');
}
}, 2, 0, defs);
const fixture = new ComponentFixture(App);
expect(fixture.html).toEqual('<todo><p>Todo one</p></todo><todo><p>Todo one</p></todo>');
});
it('should support a component with binding on host element', () => {
let cmptInstance: TodoComponentHostBinding|null;
class TodoComponentHostBinding {
title = 'one';
static ngComponentDef = defineComponent({
type: TodoComponentHostBinding,
selectors: [['todo']],
consts: 1,
vars: 1,
template: function TodoComponentHostBindingTemplate(
rf: RenderFlags, ctx: TodoComponentHostBinding) {
if (rf & RenderFlags.Create) {
text(0);
}
if (rf & RenderFlags.Update) {
textBinding(0, bind(ctx.title));
}
},
factory: () => cmptInstance = new TodoComponentHostBinding,
hostVars: 1,
hostBindings: function(directiveIndex: number, elementIndex: number): void {
// host bindings
elementProperty(
elementIndex, 'title', bind(load<TodoComponentHostBinding>(directiveIndex).title));
}
});
}
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
element(0, 'todo');
}
}, 1, 0, [TodoComponentHostBinding]);
const fixture = new ComponentFixture(App);
expect(fixture.html).toEqual('<todo title="one">one</todo>');
cmptInstance !.title = 'two';
fixture.update();
expect(fixture.html).toEqual('<todo title="two">two</todo>');
});
it('should support root component with host attribute', () => {
class HostAttributeComp {
static ngComponentDef = defineComponent({
type: HostAttributeComp,
selectors: [['host-attr-comp']],
factory: () => new HostAttributeComp(),
consts: 0,
vars: 0,
template: (rf: RenderFlags, ctx: HostAttributeComp) => {},
attributes: ['role', 'button']
});
}
const fixture = new ComponentFixture(HostAttributeComp);
expect(fixture.hostElement.getAttribute('role')).toEqual('button');
});
it('should support component with bindings in template', () => {
/** <p> {{ name }} </p>*/
class MyComp {
name = 'Bess';
static ngComponentDef = defineComponent({
type: MyComp,
selectors: [['comp']],
consts: 2,
vars: 1,
template: function MyCompTemplate(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
elementStart(0, 'p');
{ text(1); }
elementEnd();
}
if (rf & RenderFlags.Update) {
textBinding(1, bind(ctx.name));
}
},
factory: () => new MyComp
});
}
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
element(0, 'comp');
}
}, 1, 0, [MyComp]);
const fixture = new ComponentFixture(App);
expect(fixture.html).toEqual('<comp><p>Bess</p></comp>');
});
it('should support a component with sub-views', () => {
/**
* % if (condition) {
* <div>text</div>
* % }
*/
class MyComp {
// TODO(issue/24571): remove '!'.
condition !: boolean;
static ngComponentDef = defineComponent({
type: MyComp,
selectors: [['comp']],
consts: 1,
vars: 0,
template: function MyCompTemplate(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
container(0);
}
if (rf & RenderFlags.Update) {
containerRefreshStart(0);
{
if (ctx.condition) {
let rf1 = embeddedViewStart(0, 2, 0);
if (rf1 & RenderFlags.Create) {
elementStart(0, 'div');
{ text(1, 'text'); }
elementEnd();
}
embeddedViewEnd();
}
}
containerRefreshEnd();
}
},
factory: () => new MyComp,
inputs: {condition: 'condition'}
});
}
/** <comp [condition]="condition"></comp> */
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
element(0, 'comp');
}
if (rf & RenderFlags.Update) {
elementProperty(0, 'condition', bind(ctx.condition));
}
}, 1, 1, [MyComp]);
const fixture = new ComponentFixture(App);
fixture.component.condition = true;
fixture.update();
expect(fixture.html).toEqual('<comp><div>text</div></comp>');
fixture.component.condition = false;
fixture.update();
expect(fixture.html).toEqual('<comp></comp>');
});
});
describe('ng-container', () => {
it('should insert as a child of a regular element', () => {
/**
* <div>before|<ng-container>Greetings<span></span></ng-container>|after</div>
*/
function Template() {
elementStart(0, 'div');
{
text(1, 'before|');
elementContainerStart(2);
{
text(3, 'Greetings');
element(4, 'span');
}
elementContainerEnd();
text(5, '|after');
}
elementEnd();
}
const fixture = new TemplateFixture(Template, () => {}, 6);
expect(fixture.html).toEqual('<div>before|Greetings<span></span>|after</div>');
});
it('should add and remove DOM nodes when ng-container is a child of a regular element', () => {
/**
* {% if (value) { %}
* <div>
* <ng-container>content</ng-container>
* </div>
* {% } %}
*/
const TestCmpt = createComponent('test-cmpt', function(rf: RenderFlags, ctx: {value: any}) {
if (rf & RenderFlags.Create) {
container(0);
}
if (rf & RenderFlags.Update) {
containerRefreshStart(0);
if (ctx.value) {
let rf1 = embeddedViewStart(0, 3, 0);
{
if (rf1 & RenderFlags.Create) {
elementStart(0, 'div');
{
elementContainerStart(1);
{ text(2, 'content'); }
elementContainerEnd();
}
elementEnd();
}
}
embeddedViewEnd();
}
containerRefreshEnd();
}
}, 1);
const fixture = new ComponentFixture(TestCmpt);
expect(fixture.html).toEqual('');
fixture.component.value = true;
fixture.update();
expect(fixture.html).toEqual('<div>content</div>');
fixture.component.value = false;
fixture.update();
expect(fixture.html).toEqual('');
});
it('should add and remove DOM nodes when ng-container is a child of an embedded view (JS block)',
() => {
/**
* {% if (value) { %}
* <ng-container>content</ng-container>
* {% } %}
*/
const TestCmpt =
createComponent('test-cmpt', function(rf: RenderFlags, ctx: {value: any}) {
if (rf & RenderFlags.Create) {
container(0);
}
if (rf & RenderFlags.Update) {
containerRefreshStart(0);
if (ctx.value) {
let rf1 = embeddedViewStart(0, 2, 0);
{
if (rf1 & RenderFlags.Create) {
elementContainerStart(0);
{ text(1, 'content'); }
elementContainerEnd();
}
}
embeddedViewEnd();
}
containerRefreshEnd();
}
}, 1);
const fixture = new ComponentFixture(TestCmpt);
expect(fixture.html).toEqual('');
fixture.component.value = true;
fixture.update();
expect(fixture.html).toEqual('content');
fixture.component.value = false;
fixture.update();
expect(fixture.html).toEqual('');
});
it('should add and remove DOM nodes when ng-container is a child of an embedded view (ViewContainerRef)',
() => {
function ngIfTemplate(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
elementContainerStart(0);
{ text(1, 'content'); }
elementContainerEnd();
}
}
/**
* <ng-container *ngIf="value">content</ng-container>
*/
// equivalent to:
/**
* <ng-template [ngIf]="value">
* <ng-container>
* content
* </ng-container>
* </ng-template>
*/
const TestCmpt =
createComponent('test-cmpt', function(rf: RenderFlags, ctx: {value: any}) {
if (rf & RenderFlags.Create) {
template(0, ngIfTemplate, 2, 0, null, [AttributeMarker.SelectOnly, 'ngIf']);
}
if (rf & RenderFlags.Update) {
elementProperty(0, 'ngIf', bind(ctx.value));
}
}, 1, 1, [NgIf]);
const fixture = new ComponentFixture(TestCmpt);
expect(fixture.html).toEqual('');
fixture.component.value = true;
fixture.update();
expect(fixture.html).toEqual('content');
fixture.component.value = false;
fixture.update();
expect(fixture.html).toEqual('');
});
// https://stackblitz.com/edit/angular-tfhcz1?file=src%2Fapp%2Fapp.component.ts
it('should add and remove DOM nodes when ng-container is a child of a delayed embedded view',
() => {
class TestDirective {
constructor(private _tplRef: TemplateRef<any>, private _vcRef: ViewContainerRef) {}
createAndInsert() { this._vcRef.insert(this._tplRef.createEmbeddedView({})); }
clear() { this._vcRef.clear(); }
static ngDirectiveDef = defineDirective({
type: TestDirective,
selectors: [['', 'testDirective', '']],
factory:
() => testDirective = new TestDirective(
directiveInject(TemplateRef as any), directiveInject(ViewContainerRef as any)),
});
}
function embeddedTemplate(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
elementContainerStart(0);
{ text(1, 'content'); }
elementContainerEnd();
}
}
let testDirective: TestDirective;
`<ng-template testDirective>
<ng-container>
content
</ng-container>
</ng-template>`;
const TestCmpt = createComponent('test-cmpt', function(rf: RenderFlags) {
if (rf & RenderFlags.Create) {
template(
0, embeddedTemplate, 2, 0, null, [AttributeMarker.SelectOnly, 'testDirective']);
}
}, 1, 0, [TestDirective]);
const fixture = new ComponentFixture(TestCmpt);
expect(fixture.html).toEqual('');
testDirective !.createAndInsert();
fixture.update();
expect(fixture.html).toEqual('content');
testDirective !.clear();
fixture.update();
expect(fixture.html).toEqual('');
});
it('should render at the component view root', () => {
/**
* <ng-container>component template</ng-container>
*/
const TestCmpt = createComponent('test-cmpt', function(rf: RenderFlags) {
if (rf & RenderFlags.Create) {
elementContainerStart(0);
{ text(1, 'component template'); }
elementContainerEnd();
}
}, 2);
function App() { element(0, 'test-cmpt'); }
const fixture = new TemplateFixture(App, () => {}, 1, 0, [TestCmpt]);
expect(fixture.html).toEqual('<test-cmpt>component template</test-cmpt>');
});
it('should render inside another ng-container', () => {
/**
* <ng-container>
* <ng-container>
* <ng-container>
* content
* </ng-container>
* </ng-container>
* </ng-container>
*/
const TestCmpt = createComponent('test-cmpt', function(rf: RenderFlags) {
if (rf & RenderFlags.Create) {
elementContainerStart(0);
{
elementContainerStart(1);
{
elementContainerStart(2);
{ text(3, 'content'); }
elementContainerEnd();
}
elementContainerEnd();
}
elementContainerEnd();
}
}, 4);
function App() { element(0, 'test-cmpt'); }
const fixture = new TemplateFixture(App, () => {}, 1, 0, [TestCmpt]);
expect(fixture.html).toEqual('<test-cmpt>content</test-cmpt>');
});
it('should render inside another ng-container at the root of a delayed view', () => {
let testDirective: TestDirective;
class TestDirective {
constructor(private _tplRef: TemplateRef<any>, private _vcRef: ViewContainerRef) {}
createAndInsert() { this._vcRef.insert(this._tplRef.createEmbeddedView({})); }
clear() { this._vcRef.clear(); }
static ngDirectiveDef = defineDirective({
type: TestDirective,
selectors: [['', 'testDirective', '']],
factory:
() => testDirective = new TestDirective(
directiveInject(TemplateRef as any), directiveInject(ViewContainerRef as any)),
});
}
function embeddedTemplate(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
elementContainerStart(0);
{
elementContainerStart(1);
{
elementContainerStart(2);
{ text(3, 'content'); }
elementContainerEnd();
}
elementContainerEnd();
}
elementContainerEnd();
}
}
/**
* <ng-template testDirective>
* <ng-container>
* <ng-container>
* <ng-container>
* content
* </ng-container>
* </ng-container>
* </ng-container>
* </ng-template>
*/
const TestCmpt = createComponent('test-cmpt', function(rf: RenderFlags) {
if (rf & RenderFlags.Create) {
template(0, embeddedTemplate, 4, 0, null, [AttributeMarker.SelectOnly, 'testDirective']);
}
}, 1, 0, [TestDirective]);
function App() { element(0, 'test-cmpt'); }
const fixture = new ComponentFixture(TestCmpt);
expect(fixture.html).toEqual('');
testDirective !.createAndInsert();
fixture.update();
expect(fixture.html).toEqual('content');
testDirective !.createAndInsert();
fixture.update();
expect(fixture.html).toEqual('contentcontent');
testDirective !.clear();
fixture.update();
expect(fixture.html).toEqual('');
});
it('should support directives and inject ElementRef', () => {
class Directive {
constructor(public elRef: ElementRef) {}
static ngDirectiveDef = defineDirective({
type: Directive,
selectors: [['', 'dir', '']],
factory: () => directive = new Directive(directiveInject(ElementRef)),
});
}
let directive: Directive;
/**
* <div><ng-container dir></ng-container></div>
*/
function Template() {
elementStart(0, 'div');
{
elementContainerStart(1, [AttributeMarker.SelectOnly, 'dir']);
elementContainerEnd();
}
elementEnd();
}
const fixture = new TemplateFixture(Template, () => {}, 2, 0, [Directive]);
expect(fixture.html).toEqual('<div></div>');
expect(directive !.elRef.nativeElement.nodeType).toBe(Node.COMMENT_NODE);
});
it('should support ViewContainerRef when ng-container is at the root of a view', () => {
function ContentTemplate(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
text(0, 'Content');
}
}
class Directive {
contentTpl: TemplateRef<{}>|null = null;
constructor(private _vcRef: ViewContainerRef) {}
insertView() { this._vcRef.createEmbeddedView(this.contentTpl as TemplateRef<{}>); }
clear() { this._vcRef.clear(); }
static ngDirectiveDef = defineDirective({
type: Directive,
selectors: [['', 'dir', '']],
factory: () => directive = new Directive(directiveInject(ViewContainerRef as any)),
inputs: {contentTpl: 'contentTpl'},
});
}
let directive: Directive;
/**
* <ng-container dir [contentTpl]="content">
* <ng-template #content>Content</ng-template>
* </ng-container>
*/
const App = createComponent('app', function(rf: RenderFlags) {
if (rf & RenderFlags.Create) {
elementContainerStart(0, [AttributeMarker.SelectOnly, 'dir']);
template(1, ContentTemplate, 1, 0, '', null, ['content', ''], templateRefExtractor);
elementContainerEnd();
}
if (rf & RenderFlags.Update) {
const content = reference(2) as any;
elementProperty(0, 'contentTpl', bind(content));
}
}, 3, 1, [Directive]);
const fixture = new ComponentFixture(App);
expect(fixture.html).toEqual('');
directive !.insertView();
fixture.update();
expect(fixture.html).toEqual('Content');
directive !.clear();
fixture.update();
expect(fixture.html).toEqual('');
});
it('should support ViewContainerRef on <ng-template> inside <ng-container>', () => {
function ContentTemplate(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
text(0, 'Content');
}
}
class Directive {
constructor(private _tplRef: TemplateRef<{}>, private _vcRef: ViewContainerRef) {}
insertView() { this._vcRef.createEmbeddedView(this._tplRef); }
clear() { this._vcRef.clear(); }
static ngDirectiveDef = defineDirective({
type: Directive,
selectors: [['', 'dir', '']],
factory:
() => directive = new Directive(
directiveInject(TemplateRef as any), directiveInject(ViewContainerRef as any)),
});
}
let directive: Directive;
/**
* <ng-container>
* <ng-template dir>Content</ng-template>
* </ng-container>
*/
const App = createComponent('app', function(rf: RenderFlags) {
if (rf & RenderFlags.Create) {
elementContainerStart(0);
template(
1, ContentTemplate, 1, 0, '', [AttributeMarker.SelectOnly, 'dir'], [],
templateRefExtractor);
elementContainerEnd();
}
}, 2, 0, [Directive]);
const fixture = new ComponentFixture(App);
expect(fixture.html).toEqual('');
directive !.insertView();
fixture.update();
expect(fixture.html).toEqual('Content');
directive !.clear();
fixture.update();
expect(fixture.html).toEqual('');
});
it('should not set any attributes', () => {
/**
* <div><ng-container id="foo"></ng-container></div>
*/
function Template() {
elementStart(0, 'div');
{
elementContainerStart(1, ['id', 'foo']);
elementContainerEnd();
}
elementEnd();
}
const fixture = new TemplateFixture(Template, () => {}, 2);
expect(fixture.html).toEqual('<div></div>');
});
});
describe('tree', () => {
interface Tree {
beforeLabel?: string;
subTrees?: Tree[];
afterLabel?: string;
}
interface ParentCtx {
beforeTree: Tree;
projectedTree: Tree;
afterTree: Tree;
}
function showLabel(rf: RenderFlags, ctx: {label: string | undefined}) {
if (rf & RenderFlags.Create) {
container(0);
}
if (rf & RenderFlags.Update) {
containerRefreshStart(0);
{
if (ctx.label != null) {
let rf1 = embeddedViewStart(0, 1, 1);
if (rf1 & RenderFlags.Create) {
text(0);
}
if (rf1 & RenderFlags.Update) {
textBinding(0, bind(ctx.label));
}
embeddedViewEnd();
}
}
containerRefreshEnd();
}
}
function showTree(rf: RenderFlags, ctx: {tree: Tree}) {
if (rf & RenderFlags.Create) {
container(0);
container(1);
container(2);
}
if (rf & RenderFlags.Update) {
containerRefreshStart(0);
{
const rf0 = embeddedViewStart(0, 1, 0);
{ showLabel(rf0, {label: ctx.tree.beforeLabel}); }
embeddedViewEnd();
}
containerRefreshEnd();
containerRefreshStart(1);
{
for (let subTree of ctx.tree.subTrees || []) {
const rf0 = embeddedViewStart(0, 3, 0);
{ showTree(rf0, {tree: subTree}); }
embeddedViewEnd();
}
}
containerRefreshEnd();
containerRefreshStart(2);
{
const rf0 = embeddedViewStart(0, 1, 0);
{ showLabel(rf0, {label: ctx.tree.afterLabel}); }
embeddedViewEnd();
}
containerRefreshEnd();
}
}
class ChildComponent {
// TODO(issue/24571): remove '!'.
beforeTree !: Tree;
// TODO(issue/24571): remove '!'.
afterTree !: Tree;
static ngComponentDef = defineComponent({
selectors: [['child']],
type: ChildComponent,
consts: 3,
vars: 0,
template: function ChildComponentTemplate(
rf: RenderFlags, ctx: {beforeTree: Tree, afterTree: Tree}) {
if (rf & RenderFlags.Create) {
projectionDef();
container(0);
projection(1);
container(2);
}
if (rf & RenderFlags.Update) {
containerRefreshStart(0);
{
const rf0 = embeddedViewStart(0, 3, 0);
{ showTree(rf0, {tree: ctx.beforeTree}); }
embeddedViewEnd();
}
containerRefreshEnd();
containerRefreshStart(2);
{
const rf0 = embeddedViewStart(0, 3, 0);
{ showTree(rf0, {tree: ctx.afterTree}); }
embeddedViewEnd();
}
containerRefreshEnd();
}
},
factory: () => new ChildComponent,
inputs: {beforeTree: 'beforeTree', afterTree: 'afterTree'}
});
}
function parentTemplate(rf: RenderFlags, ctx: ParentCtx) {
if (rf & RenderFlags.Create) {
elementStart(0, 'child');
{ container(1); }
elementEnd();
}
if (rf & RenderFlags.Update) {
elementProperty(0, 'beforeTree', bind(ctx.beforeTree));
elementProperty(0, 'afterTree', bind(ctx.afterTree));
containerRefreshStart(1);
{
const rf0 = embeddedViewStart(0, 3, 0);
{ showTree(rf0, {tree: ctx.projectedTree}); }
embeddedViewEnd();
}
containerRefreshEnd();
}
}
it('should work with a tree', () => {
const ctx: ParentCtx = {
beforeTree: {subTrees: [{beforeLabel: 'a'}]},
projectedTree: {beforeLabel: 'p'},
afterTree: {afterLabel: 'z'}
};
const defs = [ChildComponent];
expect(renderToHtml(parentTemplate, ctx, 2, 2, defs)).toEqual('<child>apz</child>');
ctx.projectedTree = {subTrees: [{}, {}, {subTrees: [{}, {}]}, {}]};
ctx.beforeTree.subTrees !.push({afterLabel: 'b'});
expect(renderToHtml(parentTemplate, ctx, 2, 2, defs)).toEqual('<child>abz</child>');
ctx.projectedTree.subTrees ![1].afterLabel = 'h';
expect(renderToHtml(parentTemplate, ctx, 2, 2, defs)).toEqual('<child>abhz</child>');
ctx.beforeTree.subTrees !.push({beforeLabel: 'c'});
expect(renderToHtml(parentTemplate, ctx, 2, 2, defs)).toEqual('<child>abchz</child>');
// To check the context easily:
// console.log(JSON.stringify(ctx));
});
});
describe('element bindings', () => {
describe('elementAttribute', () => {
it('should support attribute bindings', () => {
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
element(0, 'span');
}
if (rf & RenderFlags.Update) {
elementAttribute(0, 'title', bind(ctx.title));
}
}, 1, 1);
const fixture = new ComponentFixture(App);
fixture.component.title = 'Hello';
fixture.update();
// initial binding
expect(fixture.html).toEqual('<span title="Hello"></span>');
// update binding
fixture.component.title = 'Hi!';
fixture.update();
expect(fixture.html).toEqual('<span title="Hi!"></span>');
// remove attribute
fixture.component.title = null;
fixture.update();
expect(fixture.html).toEqual('<span></span>');
});
it('should stringify values used attribute bindings', () => {
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
element(0, 'span');
}
if (rf & RenderFlags.Update) {
elementAttribute(0, 'title', bind(ctx.title));
}
}, 1, 1);
const fixture = new ComponentFixture(App);
fixture.component.title = NaN;
fixture.update();
expect(fixture.html).toEqual('<span title="NaN"></span>');
fixture.component.title = {toString: () => 'Custom toString'};
fixture.update();
expect(fixture.html).toEqual('<span title="Custom toString"></span>');
});
it('should update bindings', () => {
function Template(rf: RenderFlags, c: any) {
if (rf & RenderFlags.Create) {
element(0, 'b');
}
if (rf & RenderFlags.Update) {
elementAttribute(0, 'a', interpolationV(c));
elementAttribute(0, 'a0', bind(c[1]));
elementAttribute(0, 'a1', interpolation1(c[0], c[1], c[16]));
elementAttribute(0, 'a2', interpolation2(c[0], c[1], c[2], c[3], c[16]));
elementAttribute(0, 'a3', interpolation3(c[0], c[1], c[2], c[3], c[4], c[5], c[16]));
elementAttribute(
0, 'a4', interpolation4(c[0], c[1], c[2], c[3], c[4], c[5], c[6], c[7], c[16]));
elementAttribute(
0, 'a5',
interpolation5(c[0], c[1], c[2], c[3], c[4], c[5], c[6], c[7], c[8], c[9], c[16]));
elementAttribute(
0, 'a6', interpolation6(
c[0], c[1], c[2], c[3], c[4], c[5], c[6], c[7], c[8], c[9], c[10],
c[11], c[16]));
elementAttribute(
0, 'a7', interpolation7(
c[0], c[1], c[2], c[3], c[4], c[5], c[6], c[7], c[8], c[9], c[10],
c[11], c[12], c[13], c[16]));
elementAttribute(
0, 'a8', interpolation8(
c[0], c[1], c[2], c[3], c[4], c[5], c[6], c[7], c[8], c[9], c[10],
c[11], c[12], c[13], c[14], c[15], c[16]));
}
}
let args = ['(', 0, 'a', 1, 'b', 2, 'c', 3, 'd', 4, 'e', 5, 'f', 6, 'g', 7, ')'];
expect(renderToHtml(Template, args, 1, 54))
.toEqual(
'<b a="(0a1b2c3d4e5f6g7)" a0="0" a1="(0)" a2="(0a1)" a3="(0a1b2)" a4="(0a1b2c3)" a5="(0a1b2c3d4)" a6="(0a1b2c3d4e5)" a7="(0a1b2c3d4e5f6)" a8="(0a1b2c3d4e5f6g7)"></b>');
args = args.reverse();
expect(renderToHtml(Template, args, 1, 54))
.toEqual(
'<b a=")7g6f5e4d3c2b1a0(" a0="7" a1=")7(" a2=")7g6(" a3=")7g6f5(" a4=")7g6f5e4(" a5=")7g6f5e4d3(" a6=")7g6f5e4d3c2(" a7=")7g6f5e4d3c2b1(" a8=")7g6f5e4d3c2b1a0("></b>');
args = args.reverse();
expect(renderToHtml(Template, args, 1, 54))
.toEqual(
'<b a="(0a1b2c3d4e5f6g7)" a0="0" a1="(0)" a2="(0a1)" a3="(0a1b2)" a4="(0a1b2c3)" a5="(0a1b2c3d4)" a6="(0a1b2c3d4e5)" a7="(0a1b2c3d4e5f6)" a8="(0a1b2c3d4e5f6g7)"></b>');
});
it('should not update DOM if context has not changed', () => {
const ctx: {title: string | null} = {title: 'Hello'};
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
elementStart(0, 'span');
container(1);
elementEnd();
}
if (rf & RenderFlags.Update) {
elementAttribute(0, 'title', bind(ctx.title));
containerRefreshStart(1);
{
if (true) {
let rf1 = embeddedViewStart(1, 1, 1);
{
if (rf1 & RenderFlags.Create) {
elementStart(0, 'b');
{}
elementEnd();
}
if (rf1 & RenderFlags.Update) {
elementAttribute(0, 'title', bind(ctx.title));
}
}
embeddedViewEnd();
}
}
containerRefreshEnd();
}
}, 2, 1);
const fixture = new ComponentFixture(App);
fixture.component.title = 'Hello';
fixture.update();
// initial binding
expect(fixture.html).toEqual('<span title="Hello"><b title="Hello"></b></span>');
// update DOM manually
fixture.hostElement.querySelector('b') !.setAttribute('title', 'Goodbye');
// refresh with same binding
fixture.update();
expect(fixture.html).toEqual('<span title="Hello"><b title="Goodbye"></b></span>');
// refresh again with same binding
fixture.update();
expect(fixture.html).toEqual('<span title="Hello"><b title="Goodbye"></b></span>');
});
it('should support host attribute bindings', () => {
let hostBindingDir: HostBindingDir;
class HostBindingDir {
/* @HostBinding('attr.aria-label') */
label = 'some label';
static ngDirectiveDef = defineDirective({
type: HostBindingDir,
selectors: [['', 'hostBindingDir', '']],
factory: function HostBindingDir_Factory() {
return hostBindingDir = new HostBindingDir();
},
hostVars: 1,
hostBindings: function HostBindingDir_HostBindings(dirIndex: number, elIndex: number) {
elementAttribute(elIndex, 'aria-label', bind(load<HostBindingDir>(dirIndex).label));
}
});
}
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
element(0, 'div', ['hostBindingDir', '']);
}
}, 1, 0, [HostBindingDir]);
const fixture = new ComponentFixture(App);
expect(fixture.html).toEqual(`<div aria-label="some label" hostbindingdir=""></div>`);
hostBindingDir !.label = 'other label';
fixture.update();
expect(fixture.html).toEqual(`<div aria-label="other label" hostbindingdir=""></div>`);
});
});
describe('elementStyle', () => {
it('should support binding to styles', () => {
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
elementStart(0, 'span');
elementStyling(null, ['border-color']);
elementEnd();
}
if (rf & RenderFlags.Update) {
elementStyleProp(0, 0, ctx.color);
elementStylingApply(0);
}
}, 1);
const fixture = new ComponentFixture(App);
fixture.component.color = 'red';
fixture.update();
expect(fixture.html).toEqual('<span style="border-color: red;"></span>');
fixture.component.color = 'green';
fixture.update();
expect(fixture.html).toEqual('<span style="border-color: green;"></span>');
fixture.component.color = null;
fixture.update();
expect(fixture.html).toEqual('<span></span>');
});
it('should support binding to styles with suffix', () => {
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
elementStart(0, 'span');
elementStyling(null, ['font-size']);
elementEnd();
}
if (rf & RenderFlags.Update) {
elementStyleProp(0, 0, ctx.time, 'px');
elementStylingApply(0);
}
}, 1);
const fixture = new ComponentFixture(App);
fixture.component.time = '100';
fixture.update();
expect(fixture.html).toEqual('<span style="font-size: 100px;"></span>');
fixture.component.time = 200;
fixture.update();
expect(fixture.html).toEqual('<span style="font-size: 200px;"></span>');
fixture.component.time = null;
fixture.update();
expect(fixture.html).toEqual('<span></span>');
});
});
describe('elementClass', () => {
it('should support CSS class toggle', () => {
/** <span [class.active]="class"></span> */
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
elementStart(0, 'span');
elementStyling(['active']);
elementEnd();
}
if (rf & RenderFlags.Update) {
elementClassProp(0, 0, ctx.class);
elementStylingApply(0);
}
}, 1);
const fixture = new ComponentFixture(App);
fixture.component.class = true;
fixture.update();
expect(fixture.html).toEqual('<span class="active"></span>');
fixture.component.class = false;
fixture.update();
expect(fixture.html).toEqual('<span class=""></span>');
// truthy values
fixture.component.class = 'a_string';
fixture.update();
expect(fixture.html).toEqual('<span class="active"></span>');
fixture.component.class = 10;
fixture.update();
expect(fixture.html).toEqual('<span class="active"></span>');
// falsy values
fixture.component.class = '';
fixture.update();
expect(fixture.html).toEqual('<span class=""></span>');
fixture.component.class = 0;
fixture.update();
expect(fixture.html).toEqual('<span class=""></span>');
});
it('should work correctly with existing static classes', () => {
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
elementStart(0, 'span');
elementStyling(
['existing', 'active', InitialStylingFlags.VALUES_MODE, 'existing', true]);
elementEnd();
}
if (rf & RenderFlags.Update) {
elementClassProp(0, 1, ctx.class);
elementStylingApply(0);
}
}, 1);
const fixture = new ComponentFixture(App);
fixture.component.class = true;
fixture.update();
expect(fixture.html).toEqual('<span class="existing active"></span>');
fixture.component.class = false;
fixture.update();
expect(fixture.html).toEqual('<span class="existing"></span>');
});
it('should apply classes properly when nodes are components', () => {
const MyComp = createComponent('my-comp', (rf: RenderFlags, ctx: any) => {
if (rf & RenderFlags.Create) {
text(0, 'Comp Content');
}
}, 1, 0, []);
/**
* <my-comp [class.active]="class"></my-comp>
*/
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
elementStart(0, 'my-comp');
{ elementStyling(['active']); }
elementEnd();
}
if (rf & RenderFlags.Update) {
elementClassProp(0, 0, ctx.class);
elementStylingApply(0);
}
}, 1, 0, [MyComp]);
const fixture = new ComponentFixture(App);
fixture.component.class = true;
fixture.update();
expect(fixture.html).toEqual('<my-comp class="active">Comp Content</my-comp>');
fixture.component.class = false;
fixture.update();
expect(fixture.html).toEqual('<my-comp class="">Comp Content</my-comp>');
});
it('should apply classes properly when nodes have LContainers', () => {
let structuralComp !: StructuralComp;
class StructuralComp {
tmp !: TemplateRef<any>;
constructor(public vcr: ViewContainerRef) {}
create() { this.vcr.createEmbeddedView(this.tmp); }
static ngComponentDef = defineComponent({
type: StructuralComp,
selectors: [['structural-comp']],
factory: () => structuralComp =
new StructuralComp(directiveInject(ViewContainerRef as any)),
inputs: {tmp: 'tmp'},
consts: 1,
vars: 0,
template: (rf: RenderFlags, ctx: StructuralComp) => {
if (rf & RenderFlags.Create) {
text(0, 'Comp Content');
}
}
});
}
function FooTemplate(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
text(0, 'Temp Content');
}
}
/**
* <ng-template #foo>
* Temp Content
* </ng-template>
* <structural-comp [class.active]="class" [tmp]="foo"></structural-comp>
*/
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
template(0, FooTemplate, 1, 0, '', null, ['foo', ''], templateRefExtractor);
elementStart(2, 'structural-comp');
elementStyling(['active']);
elementEnd();
}
if (rf & RenderFlags.Update) {
const foo = reference(1) as any;
elementClassProp(2, 0, ctx.class);
elementStylingApply(2);
elementProperty(2, 'tmp', bind(foo));
}
}, 3, 1, [StructuralComp]);
const fixture = new ComponentFixture(App);
fixture.component.class = true;
fixture.update();
expect(fixture.html)
.toEqual('<structural-comp class="active">Comp Content</structural-comp>');
structuralComp.create();
fixture.update();
expect(fixture.html)
.toEqual('<structural-comp class="active">Comp Content</structural-comp>Temp Content');
fixture.component.class = false;
fixture.update();
expect(fixture.html)
.toEqual('<structural-comp class="">Comp Content</structural-comp>Temp Content');
});
let mockClassDirective: DirWithClassDirective;
class DirWithClassDirective {
static ngDirectiveDef = defineDirective({
type: DirWithClassDirective,
selectors: [['', 'DirWithClass', '']],
factory: () => mockClassDirective = new DirWithClassDirective(),
inputs: {'klass': 'class'}
});
public classesVal: string = '';
set klass(value: string) { this.classesVal = value; }
}
it('should delegate all initial classes to a [class] input binding if present on a directive on the same element',
() => {
/**
* <my-comp class="apple orange banana" DirWithClass></my-comp>
*/
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
elementStart(0, 'div', ['DirWithClass']);
elementStyling([
InitialStylingFlags.VALUES_MODE, 'apple', true, 'orange', true, 'banana', true
]);
elementEnd();
}
if (rf & RenderFlags.Update) {
elementStylingApply(0);
}
}, 1, 0, [DirWithClassDirective]);
const fixture = new ComponentFixture(App);
expect(mockClassDirective !.classesVal).toEqual('apple orange banana');
});
it('should update `[class]` and bindings in the provided directive if the input is matched',
() => {
/**
* <my-comp DirWithClass></my-comp>
*/
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
elementStart(0, 'div', ['DirWithClass']);
elementStyling();
elementEnd();
}
if (rf & RenderFlags.Update) {
elementStylingMap(0, 'cucumber grape');
elementStylingApply(0);
}
}, 1, 0, [DirWithClassDirective]);
const fixture = new ComponentFixture(App);
expect(mockClassDirective !.classesVal).toEqual('cucumber grape');
});
});
});
describe('template data', () => {
it('should re-use template data and node data', () => {
/**
* % if (condition) {
* <div></div>
* % }
*/
function Template(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
container(0);
}
if (rf & RenderFlags.Update) {
containerRefreshStart(0);
{
if (ctx.condition) {
let rf1 = embeddedViewStart(0, 1, 0);
if (rf1 & RenderFlags.Create) {
element(0, 'div');
}
embeddedViewEnd();
}
}
containerRefreshEnd();
}
}
expect((Template as any).ngPrivateData).toBeUndefined();
renderToHtml(Template, {condition: true}, 1);
const oldTemplateData = (Template as any).ngPrivateData;
const oldContainerData = (oldTemplateData as any).data[HEADER_OFFSET];
const oldElementData = oldContainerData.tViews[0][HEADER_OFFSET];
expect(oldContainerData).not.toBeNull();
expect(oldElementData).not.toBeNull();
renderToHtml(Template, {condition: false}, 1);
renderToHtml(Template, {condition: true}, 1);
const newTemplateData = (Template as any).ngPrivateData;
const newContainerData = (oldTemplateData as any).data[HEADER_OFFSET];
const newElementData = oldContainerData.tViews[0][HEADER_OFFSET];
expect(newTemplateData === oldTemplateData).toBe(true);
expect(newContainerData === oldContainerData).toBe(true);
expect(newElementData === oldElementData).toBe(true);
});
});
describe('component styles', () => {
it('should pass in the component styles directly into the underlying renderer', () => {
class StyledComp {
static ngComponentDef = defineComponent({
type: StyledComp,
styles: ['div { color: red; }'],
consts: 1,
vars: 0,
encapsulation: 100,
selectors: [['foo']],
factory: () => new StyledComp(),
template: (rf: RenderFlags, ctx: StyledComp) => {
if (rf & RenderFlags.Create) {
element(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 ngComponentDef = defineComponent({
type: AnimComp,
consts: 0,
vars: 0,
data: {
animations: [
animA,
animB,
],
},
selectors: [['foo']],
factory: () => new AnimComp(),
template: (rf: RenderFlags, ctx: AnimComp) => {}
});
}
const rendererFactory = new ProxyRenderer3Factory();
new ComponentFixture(AnimComp, {rendererFactory});
const capturedAnimations = rendererFactory.lastCapturedType !.data !['animations'];
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 ngComponentDef = defineComponent({
type: AnimComp,
consts: 0,
vars: 0,
data: {
animations: [],
},
selectors: [['foo']],
factory: () => new AnimComp(),
template: (rf: RenderFlags, ctx: AnimComp) => {}
});
}
const rendererFactory = new ProxyRenderer3Factory();
new ComponentFixture(AnimComp, {rendererFactory});
const data = rendererFactory.lastCapturedType !.data;
expect(data.animations).toEqual([]);
});
it('should allow [@trigger] bindings to be picked up by the underlying renderer', () => {
class AnimComp {
static ngComponentDef = defineComponent({
type: AnimComp,
consts: 1,
vars: 1,
selectors: [['foo']],
factory: () => new AnimComp(),
template: (rf: RenderFlags, ctx: AnimComp) => {
if (rf & RenderFlags.Create) {
element(0, 'div', [AttributeMarker.SelectOnly, '@fooAnimation']);
}
if (rf & RenderFlags.Update) {
elementAttribute(0, '@fooAnimation', bind(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 ngComponentDef = defineComponent({
type: AnimComp,
consts: 1,
vars: 1,
selectors: [['foo']],
factory: () => new AnimComp(),
template: (rf: RenderFlags, ctx: AnimComp) => {
if (rf & RenderFlags.Create) {
element(0, 'div', ['@fooAnimation', '']);
}
}
});
}
const rendererFactory = new MockRendererFactory(['setAttribute']);
const fixture = new ComponentFixture(AnimComp, {rendererFactory});
const renderer = rendererFactory.lastRenderer !;
fixture.update();
const spy = renderer.spies['setAttribute'];
const [elm, attr, value] = spy.calls.mostRecent().args;
expect(attr).toEqual('@fooAnimation');
});
});
describe('element discovery', () => {
it('should only monkey-patch immediate child nodes in a component', () => {
class StructuredComp {
static ngComponentDef = defineComponent({
type: StructuredComp,
selectors: [['structured-comp']],
factory: () => new StructuredComp(),
consts: 2,
vars: 0,
template: (rf: RenderFlags, ctx: StructuredComp) => {
if (rf & RenderFlags.Create) {
elementStart(0, 'div');
elementStart(1, 'p');
elementEnd();
elementEnd();
}
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(parent[MONKEY_PATCH_KEY_NAME]).toBeTruthy();
expect(child[MONKEY_PATCH_KEY_NAME]).toBeFalsy();
});
it('should only monkey-patch immediate child nodes in a sub component', () => {
class ChildComp {
static ngComponentDef = defineComponent({
type: ChildComp,
selectors: [['child-comp']],
factory: () => new ChildComp(),
consts: 3,
vars: 0,
template: (rf: RenderFlags, ctx: ChildComp) => {
if (rf & RenderFlags.Create) {
element(0, 'div');
element(1, 'div');
element(2, 'div');
}
}
});
}
class ParentComp {
static ngComponentDef = defineComponent({
type: ParentComp,
selectors: [['parent-comp']],
directives: [ChildComp],
factory: () => new ParentComp(),
consts: 2,
vars: 0,
template: (rf: RenderFlags, ctx: ParentComp) => {
if (rf & RenderFlags.Create) {
elementStart(0, 'section');
elementStart(1, 'child-comp');
elementEnd();
elementEnd();
}
}
});
}
const fixture = new ComponentFixture(ParentComp);
fixture.update();
const host = fixture.hostElement;
const child = host.querySelector('child-comp') as any;
expect(child[MONKEY_PATCH_KEY_NAME]).toBeTruthy();
const [kid1, kid2, kid3] = Array.from(host.querySelectorAll('child-comp > *'));
expect(kid1[MONKEY_PATCH_KEY_NAME]).toBeTruthy();
expect(kid2[MONKEY_PATCH_KEY_NAME]).toBeTruthy();
expect(kid3[MONKEY_PATCH_KEY_NAME]).toBeTruthy();
});
it('should only monkey-patch immediate child nodes in an embedded template container', () => {
class StructuredComp {
static ngComponentDef = defineComponent({
type: StructuredComp,
selectors: [['structured-comp']],
directives: [NgIf],
factory: () => new StructuredComp(),
consts: 2,
vars: 1,
template: (rf: RenderFlags, ctx: StructuredComp) => {
if (rf & RenderFlags.Create) {
elementStart(0, 'section');
template(1, (rf, ctx) => {
if (rf & RenderFlags.Create) {
elementStart(0, 'div');
element(1, 'p');
elementEnd();
element(2, 'div');
}
}, 3, 0, null, ['ngIf', '']);
elementEnd();
}
if (rf & RenderFlags.Update) {
elementProperty(1, '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(section[MONKEY_PATCH_KEY_NAME]).toBeTruthy();
expect(div1.nodeName.toLowerCase()).toBe('div');
expect(div1[MONKEY_PATCH_KEY_NAME]).toBeTruthy();
expect(p.nodeName.toLowerCase()).toBe('p');
expect(p[MONKEY_PATCH_KEY_NAME]).toBeFalsy();
expect(div2.nodeName.toLowerCase()).toBe('div');
expect(div2[MONKEY_PATCH_KEY_NAME]).toBeTruthy();
});
it('should return a context object from a given dom node', () => {
class StructuredComp {
static ngComponentDef = defineComponent({
type: StructuredComp,
selectors: [['structured-comp']],
directives: [NgIf],
factory: () => new StructuredComp(),
consts: 2,
vars: 0,
template: (rf: RenderFlags, ctx: StructuredComp) => {
if (rf & RenderFlags.Create) {
element(0, 'section');
element(1, 'div');
}
}
});
}
const fixture = new ComponentFixture(StructuredComp);
fixture.update();
const section = fixture.hostElement.querySelector('section') !;
const sectionContext = getContext(section) !;
const sectionLView = sectionContext.lViewData !;
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 = getContext(div) !;
const divLView = divContext.lViewData !;
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 ngComponentDef = defineComponent({
type: StructuredComp,
selectors: [['structured-comp']],
factory: () => new StructuredComp(),
consts: 1,
vars: 0,
template: (rf: RenderFlags, ctx: StructuredComp) => {
if (rf & RenderFlags.Create) {
element(0, 'section');
}
}
});
}
const fixture = new ComponentFixture(StructuredComp);
fixture.update();
const section = fixture.hostElement.querySelector('section') !as any;
const result1 = section[MONKEY_PATCH_KEY_NAME];
expect(Array.isArray(result1)).toBeTruthy();
const context = getContext(section) !;
const result2 = section[MONKEY_PATCH_KEY_NAME];
expect(Array.isArray(result2)).toBeFalsy();
expect(result2).toBe(context);
expect(result2.lViewData).toBe(result1);
});
it('should cache the element context on an intermediate element that isn\'t pre-emptively monkey-patched',
() => {
class StructuredComp {
static ngComponentDef = defineComponent({
type: StructuredComp,
selectors: [['structured-comp']],
factory: () => new StructuredComp(),
consts: 2,
vars: 0,
template: (rf: RenderFlags, ctx: StructuredComp) => {
if (rf & RenderFlags.Create) {
elementStart(0, 'section');
element(1, 'p');
elementEnd();
}
}
});
}
const fixture = new ComponentFixture(StructuredComp);
fixture.update();
const section = fixture.hostElement.querySelector('section') !as any;
expect(section[MONKEY_PATCH_KEY_NAME]).toBeTruthy();
const p = fixture.hostElement.querySelector('p') !as any;
expect(p[MONKEY_PATCH_KEY_NAME]).toBeFalsy();
const pContext = getContext(p) !;
expect(pContext.native).toBe(p);
expect(p[MONKEY_PATCH_KEY_NAME]).toBe(pContext);
});
it('should be able to pull in element context data even if the element is decorated using styling',
() => {
class StructuredComp {
static ngComponentDef = defineComponent({
type: StructuredComp,
selectors: [['structured-comp']],
factory: () => new StructuredComp(),
consts: 1,
vars: 0,
template: (rf: RenderFlags, ctx: StructuredComp) => {
if (rf & RenderFlags.Create) {
elementStart(0, 'section');
elementStyling(['class-foo']);
elementEnd();
}
if (rf & RenderFlags.Update) {
elementStylingApply(0);
}
}
});
}
const fixture = new ComponentFixture(StructuredComp);
fixture.update();
const section = fixture.hostElement.querySelector('section') !as any;
const result1 = section[MONKEY_PATCH_KEY_NAME];
expect(Array.isArray(result1)).toBeTruthy();
const elementResult = result1[HEADER_OFFSET]; // first element
expect(Array.isArray(elementResult)).toBeTruthy();
expect(elementResult[StylingIndex.ElementPosition]).toBe(section);
const context = getContext(section) !;
const result2 = section[MONKEY_PATCH_KEY_NAME];
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 ngComponentDef = defineComponent({
type: ProjectorComp,
selectors: [['projector-comp']],
factory: () => new ProjectorComp(),
consts: 4,
vars: 0,
template: (rf: RenderFlags, ctx: ProjectorComp) => {
if (rf & RenderFlags.Create) {
projectionDef();
text(0, 'welcome');
elementStart(1, 'header');
elementStart(2, 'h1');
projection(3);
elementEnd();
elementEnd();
}
if (rf & RenderFlags.Update) {
}
}
});
}
class ParentComp {
static ngComponentDef = defineComponent({
type: ParentComp,
selectors: [['parent-comp']],
directives: [ProjectorComp],
factory: () => new ParentComp(),
consts: 5,
vars: 0,
template: (rf: RenderFlags, ctx: ParentComp) => {
if (rf & RenderFlags.Create) {
elementStart(0, 'section');
elementStart(1, 'projector-comp');
elementStart(2, 'p');
text(3, 'this content is projected');
elementEnd();
text(4, 'this content is projected also');
elementEnd();
elementEnd();
}
}
});
}
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(textNode[MONKEY_PATCH_KEY_NAME]).toBeTruthy();
expect(section[MONKEY_PATCH_KEY_NAME]).toBeTruthy();
expect(projectorComp[MONKEY_PATCH_KEY_NAME]).toBeTruthy();
expect(header[MONKEY_PATCH_KEY_NAME]).toBeTruthy();
expect(h1[MONKEY_PATCH_KEY_NAME]).toBeFalsy();
expect(p[MONKEY_PATCH_KEY_NAME]).toBeTruthy();
expect(pText[MONKEY_PATCH_KEY_NAME]).toBeFalsy();
expect(projectedTextNode[MONKEY_PATCH_KEY_NAME]).toBeTruthy();
const parentContext = getContext(section) !;
const shadowContext = getContext(header) !;
const projectedContext = getContext(p) !;
const parentComponentData = parentContext.lViewData;
const shadowComponentData = shadowContext.lViewData;
const projectedComponentData = projectedContext.lViewData;
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 = getContext(elm1);
expect(context1).toBeFalsy();
const elm2 = document.createElement('div');
document.body.appendChild(elm2);
const context2 = getContext(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 ngComponentDef = defineComponent({
type: StructuredComp,
selectors: [['structured-comp']],
factory: () => new StructuredComp(),
consts: 1,
vars: 0,
template: (rf: RenderFlags, ctx: StructuredComp) => {
if (rf & RenderFlags.Create) {
element(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 = getContext(manuallyCreatedElement);
expect(context).toBeFalsy();
});
it('should by default monkey-patch the bootstrap component with context details', () => {
class StructuredComp {
static ngComponentDef = defineComponent({
type: StructuredComp,
selectors: [['structured-comp']],
factory: () => new StructuredComp(),
consts: 0,
vars: 0,
template: (rf: RenderFlags, ctx: StructuredComp) => {}
});
}
const fixture = new ComponentFixture(StructuredComp);
fixture.update();
const hostElm = fixture.hostElement;
const component = fixture.component;
const componentLViewData = (component as any)[MONKEY_PATCH_KEY_NAME];
expect(Array.isArray(componentLViewData)).toBeTruthy();
const hostLViewData = (hostElm as any)[MONKEY_PATCH_KEY_NAME];
expect(hostLViewData).toBe(componentLViewData);
const context1 = getContext(hostElm) !;
expect(context1.lViewData).toBe(hostLViewData);
expect(context1.native).toEqual(hostElm);
const context2 = getContext(component) !;
expect(context2).toBe(context1);
expect(context2.lViewData).toBe(hostLViewData);
expect(context2.native).toEqual(hostElm);
});
it('should by default monkey-patch the directives with LViewData so that they can be examined',
() => {
let myDir1Instance: MyDir1|null = null;
let myDir2Instance: MyDir2|null = null;
let myDir3Instance: MyDir2|null = null;
class MyDir1 {
static ngDirectiveDef = defineDirective({
type: MyDir1,
selectors: [['', 'my-dir-1', '']],
factory: () => myDir1Instance = new MyDir1()
});
}
class MyDir2 {
static ngDirectiveDef = defineDirective({
type: MyDir2,
selectors: [['', 'my-dir-2', '']],
factory: () => myDir2Instance = new MyDir2()
});
}
class MyDir3 {
static ngDirectiveDef = defineDirective({
type: MyDir3,
selectors: [['', 'my-dir-3', '']],
factory: () => myDir3Instance = new MyDir2()
});
}
class StructuredComp {
static ngComponentDef = defineComponent({
type: StructuredComp,
selectors: [['structured-comp']],
directives: [MyDir1, MyDir2, MyDir3],
factory: () => new StructuredComp(),
consts: 2,
vars: 0,
template: (rf: RenderFlags, ctx: StructuredComp) => {
if (rf & RenderFlags.Create) {
element(0, 'div', ['my-dir-1', '', 'my-dir-2', '']);
element(1, 'div', ['my-dir-3']);
}
}
});
}
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 = getContext(hostElm) !;
const componentView = context.lViewData[context.nodeIndex];
expect(componentView).toContain(myDir1Instance);
expect(componentView).toContain(myDir2Instance);
expect(componentView).toContain(myDir3Instance);
expect(Array.isArray((myDir1Instance as any)[MONKEY_PATCH_KEY_NAME])).toBeTruthy();
expect(Array.isArray((myDir2Instance as any)[MONKEY_PATCH_KEY_NAME])).toBeTruthy();
expect(Array.isArray((myDir3Instance as any)[MONKEY_PATCH_KEY_NAME])).toBeTruthy();
const d1Context = getContext(myDir1Instance) !;
const d2Context = getContext(myDir2Instance) !;
const d3Context = getContext(myDir3Instance) !;
expect(d1Context.lViewData).toEqual(componentView);
expect(d2Context.lViewData).toEqual(componentView);
expect(d3Context.lViewData).toEqual(componentView);
expect((myDir1Instance as any)[MONKEY_PATCH_KEY_NAME]).toBe(d1Context);
expect((myDir2Instance as any)[MONKEY_PATCH_KEY_NAME]).toBe(d2Context);
expect((myDir3Instance as any)[MONKEY_PATCH_KEY_NAME]).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 ngDirectiveDef = defineDirective({
type: MyDir1,
selectors: [['', 'my-dir-1', '']],
factory: () => myDir1Instance = new MyDir1()
});
}
class MyDir2 {
static ngDirectiveDef = defineDirective({
type: MyDir2,
selectors: [['', 'my-dir-2', '']],
factory: () => myDir2Instance = new MyDir2()
});
}
class ChildComp {
static ngComponentDef = defineComponent({
type: ChildComp,
selectors: [['child-comp']],
factory: () => childComponentInstance = new ChildComp(),
consts: 1,
vars: 0,
template: (rf: RenderFlags, ctx: ChildComp) => {
if (rf & RenderFlags.Create) {
element(0, 'div');
}
}
});
}
class ParentComp {
static ngComponentDef = defineComponent({
type: ParentComp,
selectors: [['parent-comp']],
directives: [ChildComp, MyDir1, MyDir2],
factory: () => new ParentComp(),
consts: 1,
vars: 0,
template: (rf: RenderFlags, ctx: ParentComp) => {
if (rf & RenderFlags.Create) {
element(0, 'child-comp', ['my-dir-1', '', 'my-dir-2', '']);
}
}
});
}
const fixture = new ComponentFixture(ParentComp);
fixture.update();
const childCompHostElm = fixture.hostElement.querySelector('child-comp') !as any;
const lViewData = childCompHostElm[MONKEY_PATCH_KEY_NAME];
expect(Array.isArray(lViewData)).toBeTruthy();
expect((myDir1Instance as any)[MONKEY_PATCH_KEY_NAME]).toBe(lViewData);
expect((myDir2Instance as any)[MONKEY_PATCH_KEY_NAME]).toBe(lViewData);
expect((childComponentInstance as any)[MONKEY_PATCH_KEY_NAME]).toBe(lViewData);
const childNodeContext = getContext(childCompHostElm) !;
expect(childNodeContext.component).toBeFalsy();
expect(childNodeContext.directives).toBeFalsy();
assertMonkeyPatchValueIsLViewData(myDir1Instance);
assertMonkeyPatchValueIsLViewData(myDir2Instance);
assertMonkeyPatchValueIsLViewData(childComponentInstance);
expect(getContext(myDir1Instance)).toBe(childNodeContext);
expect(childNodeContext.component).toBeFalsy();
expect(childNodeContext.directives !.length).toEqual(2);
assertMonkeyPatchValueIsLViewData(myDir1Instance, false);
assertMonkeyPatchValueIsLViewData(myDir2Instance, false);
assertMonkeyPatchValueIsLViewData(childComponentInstance);
expect(getContext(myDir2Instance)).toBe(childNodeContext);
expect(childNodeContext.component).toBeFalsy();
expect(childNodeContext.directives !.length).toEqual(2);
assertMonkeyPatchValueIsLViewData(myDir1Instance, false);
assertMonkeyPatchValueIsLViewData(myDir2Instance, false);
assertMonkeyPatchValueIsLViewData(childComponentInstance);
expect(getContext(childComponentInstance)).toBe(childNodeContext);
expect(childNodeContext.component).toBeTruthy();
expect(childNodeContext.directives !.length).toEqual(2);
assertMonkeyPatchValueIsLViewData(myDir1Instance, false);
assertMonkeyPatchValueIsLViewData(myDir2Instance, false);
assertMonkeyPatchValueIsLViewData(childComponentInstance, false);
function assertMonkeyPatchValueIsLViewData(value: any, yesOrNo = true) {
expect(Array.isArray((value as any)[MONKEY_PATCH_KEY_NAME])).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 ngComponentDef = defineComponent({
type: ChildComp,
selectors: [['child-comp']],
factory: () => new ChildComp(),
consts: 3,
vars: 0,
template: (rf: RenderFlags, ctx: ChildComp) => {
if (rf & RenderFlags.Create) {
element(0, 'div');
element(1, 'div');
element(2, 'div');
}
}
});
}
class ParentComp {
static ngComponentDef = defineComponent({
type: ParentComp,
selectors: [['parent-comp']],
directives: [ChildComp],
factory: () => new ParentComp(),
consts: 2,
vars: 0,
template: (rf: RenderFlags, ctx: ParentComp) => {
if (rf & RenderFlags.Create) {
elementStart(0, 'section');
elementStart(1, 'child-comp');
elementEnd();
elementEnd();
}
}
});
}
const fixture = new ComponentFixture(ParentComp);
fixture.update();
const host = fixture.hostElement;
const child = host.querySelector('child-comp') as any;
expect(child[MONKEY_PATCH_KEY_NAME]).toBeTruthy();
const context = getContext(child) !;
expect(child[MONKEY_PATCH_KEY_NAME]).toBeTruthy();
const componentData = context.lViewData[context.nodeIndex];
const component = componentData[CONTEXT];
expect(component instanceof ChildComp).toBeTruthy();
expect(component[MONKEY_PATCH_KEY_NAME]).toBe(context.lViewData);
const componentContext = getContext(component) !;
expect(component[MONKEY_PATCH_KEY_NAME]).toBe(componentContext);
expect(componentContext.nodeIndex).toEqual(context.nodeIndex);
expect(componentContext.native).toEqual(context.native);
expect(componentContext.lViewData).toEqual(context.lViewData);
});
});
describe('sanitization', () => {
it('should sanitize data using the provided sanitization interface', () => {
class SanitizationComp {
static ngComponentDef = defineComponent({
type: SanitizationComp,
selectors: [['sanitize-this']],
factory: () => new SanitizationComp(),
consts: 1,
vars: 1,
template: (rf: RenderFlags, ctx: SanitizationComp) => {
if (rf & RenderFlags.Create) {
element(0, 'a');
}
if (rf & RenderFlags.Update) {
elementProperty(0, 'href', bind(ctx.href), sanitizeUrl);
}
}
});
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');
});
});
});
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);
}
}
class MockRendererFactory implements RendererFactory3 {
lastRenderer: any;
private _spyOnMethods: string[];
constructor(spyOnMethods?: string[]) { this._spyOnMethods = spyOnMethods || []; }
createRenderer(hostElement: RElement|null, rendererType: RendererType2|null): Renderer3 {
const renderer = this.lastRenderer = new MockRenderer(this._spyOnMethods);
return renderer;
}
}
class MockRenderer implements ProceduralRenderer3 {
public spies: {[methodName: string]: any} = {};
constructor(spyOnMethods: string[]) {
spyOnMethods.forEach(methodName => {
this.spies[methodName] = spyOn(this as any, methodName).and.callThrough();
});
}
destroy(): void {}
createComment(value: string): RComment { return document.createComment(value); }
createElement(name: string, namespace?: string|null): RElement {
return document.createElement(name);
}
createText(value: string): RText { return document.createTextNode(value); }
appendChild(parent: RElement, newChild: RNode): void { parent.appendChild(newChild); }
insertBefore(parent: RNode, newChild: RNode, refChild: RNode|null): void {
parent.insertBefore(newChild, refChild, false);
}
removeChild(parent: RElement, oldChild: RNode): void { parent.removeChild(oldChild); }
selectRootElement(selectorOrNode: string|any): RElement {
return ({} as any);
}
setAttribute(el: RElement, name: string, value: string, namespace?: string|null): void {}
removeAttribute(el: RElement, name: string, namespace?: string|null): void {}
addClass(el: RElement, name: string): void {}
removeClass(el: RElement, name: string): void {}
setStyle(
el: RElement, style: string, value: any,
flags?: RendererStyleFlags2|RendererStyleFlags3): void {}
removeStyle(el: RElement, style: string, flags?: RendererStyleFlags2|RendererStyleFlags3): void {}
setProperty(el: RElement, name: string, value: any): void {}
setValue(node: RText, value: string): void {}
// TODO(misko): Deprecate in favor of addEventListener/removeEventListener
listen(target: RNode, eventName: string, callback: (event: any) => boolean | void): () => void {
return () => {};
}
}