545 lines
21 KiB
TypeScript
545 lines
21 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {inspect} from 'util';
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import {tsSourceMapBug29300Fixed} from '../../src/ngtsc/util/src/ts_source_map_bug_29300';
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import {NgtscTestEnvironment} from './env';
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import {SegmentMapping, getMappedSegments} from './sourcemap_utils';
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describe('template source-mapping', () => {
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let env !: NgtscTestEnvironment;
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beforeEach(() => { env = NgtscTestEnvironment.setup(); });
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describe('Inline templates', () => {
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describe('(element creation)', () => {
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it('should map simple element with content', () => {
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const mappings = compileAndMap('<h1>Heading 1</h1>');
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expect(mappings).toContain(
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{source: '<h1>', generated: 'i0.ɵelementStart(0, "h1")', sourceUrl: '../test.ts'});
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expect(mappings).toContain(
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{source: 'Heading 1', generated: 'i0.ɵtext(1, "Heading 1")', sourceUrl: '../test.ts'});
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expect(mappings).toContain(
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{source: '</h1>', generated: 'i0.ɵelementEnd()', sourceUrl: '../test.ts'});
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});
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it('should map void element', () => {
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const mappings = compileAndMap('<hr>');
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expect(mappings).toContain(
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{source: '<hr>', generated: 'i0.ɵelement(0, "hr")', sourceUrl: '../test.ts'});
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});
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});
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describe('(interpolations)', () => {
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it('should map a mix of interpolated and static content', () => {
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const mappings = compileAndMap('<h3>Hello {{ name }}</h3>');
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expect(mappings).toContain(
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{source: '<h3>', generated: 'i0.ɵelementStart(0, "h3")', sourceUrl: '../test.ts'});
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expect(mappings).toContain({
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source: 'Hello {{ name }}',
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generated: 'i0.ɵtextBinding(1, i0.ɵinterpolation1("Hello ", ctx.name, ""))',
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sourceUrl: '../test.ts'
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});
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expect(mappings).toContain(
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{source: '</h3>', generated: 'i0.ɵelementEnd()', sourceUrl: '../test.ts'});
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});
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it('should map a complex interpolated expression', () => {
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const mappings = compileAndMap('<h2>{{ greeting + " " + name }}</h2>');
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expect(mappings).toContain(
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{source: '<h2>', generated: 'i0.ɵelementStart(0, "h2")', sourceUrl: '../test.ts'});
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expect(mappings).toContain({
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source: '{{ greeting + " " + name }}',
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generated:
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'i0.ɵtextBinding(1, i0.ɵinterpolation1("", ((ctx.greeting + " ") + ctx.name), ""))',
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sourceUrl: '../test.ts'
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});
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expect(mappings).toContain(
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{source: '</h2>', generated: 'i0.ɵelementEnd()', sourceUrl: '../test.ts'});
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});
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it('should map interpolated properties', () => {
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const mappings = compileAndMap('<div id="{{name}}"></div>');
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expect(mappings).toContain({
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source: '<div id="{{name}}"></div>',
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generated: 'i0.ɵelement(0, "div", _c0)',
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sourceUrl: '../test.ts'
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});
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expect(mappings).toContain({
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source: 'id="{{name}}"',
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generated: 'i0.ɵelementProperty(0, "id", i0.ɵinterpolation1("", ctx.name, ""))',
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sourceUrl: '../test.ts'
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});
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});
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it('should map interpolation with pipe', () => {
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const mappings = compileAndMap('<div>{{200.3 | percent : 2 }}</div>');
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expect(mappings).toContain(
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{source: '<div>', generated: 'i0.ɵelementStart(0, "div")', sourceUrl: '../test.ts'});
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expect(mappings).toContain({
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source: '{{200.3 | percent : 2 }}',
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generated:
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'i0.ɵtextBinding(1, i0.ɵinterpolation1("", i0.ɵpipeBind2(2, 1, 200.3, 2), ""))',
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sourceUrl: '../test.ts'
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});
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expect(mappings).toContain(
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{source: '</div>', generated: 'i0.ɵelementEnd()', sourceUrl: '../test.ts'});
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});
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});
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describe('(property bindings)', () => {
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it('should map a simple input binding expression', () => {
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const mappings = compileAndMap('<div [attr]="name"></div>');
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expect(mappings).toContain({
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source: '<div [attr]="name"></div>',
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generated: 'i0.ɵelement(0, "div", _c0)',
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sourceUrl: '../test.ts'
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});
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expect(mappings).toContain({
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source: '[attr]="name"',
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generated: 'i0.ɵelementProperty(0, "attr", i0.ɵbind(ctx.name))',
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sourceUrl: '../test.ts'
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});
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});
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it('should map a complex input binding expression', () => {
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const mappings = compileAndMap('<div [attr]="greeting + name"></div>');
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expect(mappings).toContain({
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source: '<div [attr]="greeting + name"></div>',
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generated: 'i0.ɵelement(0, "div", _c0)',
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sourceUrl: '../test.ts'
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});
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expect(mappings).toContain({
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source: '[attr]="greeting + name"',
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generated: 'i0.ɵelementProperty(0, "attr", i0.ɵbind((ctx.greeting + ctx.name)))',
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sourceUrl: '../test.ts'
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});
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});
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it('should map a longhand input binding expression', () => {
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const mappings = compileAndMap('<div bind-attr="name"></div>');
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expect(mappings).toContain({
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source: '<div bind-attr="name"></div>',
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generated: 'i0.ɵelement(0, "div", _c0)',
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sourceUrl: '../test.ts'
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});
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expect(mappings).toContain({
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source: 'bind-attr="name"',
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generated: 'i0.ɵelementProperty(0, "attr", i0.ɵbind(ctx.name))',
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sourceUrl: '../test.ts'
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});
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});
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it('should map a simple output binding expression', () => {
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const mappings = compileAndMap('<button (click)="doSomething()">Do it</button>');
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expect(mappings).toContain({
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source: '<button (click)="doSomething()">',
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generated: 'i0.ɵelementStart(0, "button", _c0)',
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sourceUrl: '../test.ts'
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});
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expect(mappings).toContain(
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{source: 'Do it', generated: 'i0.ɵtext(1, "Do it")', sourceUrl: '../test.ts'});
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expect(mappings).toContain(
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{source: 'doSomething()', generated: 'ctx.doSomething()', sourceUrl: '../test.ts'});
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expect(mappings).toContain(
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{source: '</button>', generated: 'i0.ɵelementEnd()', sourceUrl: '../test.ts'});
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});
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it('should map a complex output binding expression', () => {
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const mappings =
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compileAndMap(`<button (click)="items.push('item' + items.length)">Add Item</button>`);
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expect(mappings).toContain({
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source: `<button (click)="items.push('item' + items.length)">`,
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generated: 'i0.ɵelementStart(0, "button", _c0)',
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sourceUrl: '../test.ts'
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});
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expect(mappings).toContain(
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{source: 'Add Item', generated: 'i0.ɵtext(1, "Add Item")', sourceUrl: '../test.ts'});
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expect(mappings).toContain(
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{source: 'items.push(', generated: 'ctx.items.push((', sourceUrl: '../test.ts'});
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expect(mappings).toContain(
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{source: `'item' `, generated: `"item"`, sourceUrl: '../test.ts'});
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expect(mappings).toContain({
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source: '+ items.length)',
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generated: ' + ctx.items.length))',
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sourceUrl: '../test.ts'
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});
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expect(mappings).toContain(
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{source: '</button>', generated: 'i0.ɵelementEnd()', sourceUrl: '../test.ts'});
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});
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it('should map a longhand output binding expression', () => {
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const mappings = compileAndMap('<button on-click="doSomething()">Do it</button>');
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expect(mappings).toContain({
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source: '<button on-click="doSomething()">',
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generated: 'i0.ɵelementStart(0, "button", _c0)',
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sourceUrl: '../test.ts'
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});
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expect(mappings).toContain(
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{source: 'Do it', generated: 'i0.ɵtext(1, "Do it")', sourceUrl: '../test.ts'});
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expect(mappings).toContain(
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{source: 'doSomething()', generated: 'ctx.doSomething()', sourceUrl: '../test.ts'});
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expect(mappings).toContain(
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{source: '</button>', generated: 'i0.ɵelementEnd()', sourceUrl: '../test.ts'});
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});
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it('should map a two-way binding expression', () => {
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const mappings = compileAndMap('Name: <input [(ngModel)]="name">');
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expect(mappings).toContain({
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source: '<input [(ngModel)]="name">',
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generated: 'i0.ɵelementStart(1, "input", _c0)',
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sourceUrl: '../test.ts'
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});
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// TODO: improve mappings here
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expect(mappings).toContain({
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source: '[(ngModel)]="name"',
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generated:
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'i0.ɵlistener("ngModelChange", function TestCmp_Template_input_ngModelChange_1_listener($event) { return ctx.name = $event; })',
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sourceUrl: '../test.ts'
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});
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expect(mappings).toContain({
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source: '<input [(ngModel)]="name">',
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generated: 'i0.ɵelementEnd()',
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sourceUrl: '../test.ts'
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});
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});
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it('should map a longhand two-way binding expression', () => {
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const mappings = compileAndMap('Name: <input bindon-ngModel="name">');
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expect(mappings).toContain({
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source: '<input bindon-ngModel="name">',
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generated: 'i0.ɵelementStart(1, "input", _c0)',
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sourceUrl: '../test.ts'
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});
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// TODO: improve mappings here
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expect(mappings).toContain({
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source: 'bindon-ngModel="name"',
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generated:
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'i0.ɵlistener("ngModelChange", function TestCmp_Template_input_ngModelChange_1_listener($event) { return ctx.name = $event; })',
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sourceUrl: '../test.ts'
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});
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expect(mappings).toContain({
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source: '<input bindon-ngModel="name">',
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generated: 'i0.ɵelementEnd()',
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sourceUrl: '../test.ts'
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});
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});
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it('should map a class input binding', () => {
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const mappings = compileAndMap('<div [class.initial]="isInitial">Message</div>');
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expect(mappings).toContain({
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source: '<div [class.initial]="isInitial">',
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generated: 'i0.ɵelementStart(0, "div")',
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sourceUrl: '../test.ts'
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});
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// TODO: Add better mappings for binding
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expect(mappings).toContain(
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{source: 'Message', generated: 'i0.ɵtext(1, "Message")', sourceUrl: '../test.ts'});
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expect(mappings).toContain(
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{source: '</div>', generated: 'i0.ɵelementEnd()', sourceUrl: '../test.ts'});
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});
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});
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describe('(structural directives)', () => {
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it('should map *ngIf scenario', () => {
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const mappings = compileAndMap('<div *ngIf="showMessage()">{{ name }}</div>');
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expect(mappings).toContain({
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source: '<div *ngIf="showMessage()">',
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generated: 'i0.ɵelementStart(0, "div")',
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sourceUrl: '../test.ts'
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});
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// TODO - map the bindings better
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expect(mappings).toContain(
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{source: '</div>', generated: 'i0.ɵelementEnd()', sourceUrl: '../test.ts'});
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// TODO: the `ctx_r...` appears to be dependent upon previous tests!!!
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// expect(mappings).toContain({
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// source: '{{ name }}',
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// generated: 'i0.ɵtextBinding(1, i0.ɵinterpolation1("", ctx_r0.name, ""))',
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// sourceUrl: '../test.ts'
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// });
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});
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it('should map ng-template [ngIf] scenario', () => {
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const mappings = compileAndMap(
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`<ng-template [ngIf]="showMessage()">\n` +
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` <div>{{ name }}</div>\n` +
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` <hr>\n` +
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`</ng-template>`);
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expect(mappings).toContain(
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{source: '<div>', generated: 'i0.ɵelementStart(0, "div")', sourceUrl: '../test.ts'});
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// TODO - map the bindings better
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expect(mappings).toContain(
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{source: '</div>', generated: 'i0.ɵelementEnd()', sourceUrl: '../test.ts'});
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// TODO: the `ctx_r...` appears to be dependent upon previous tests!!!
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// expect(mappings).toContain({
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// source: '{{ name }}',
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// generated: 'i0.ɵtextBinding(1, i0.ɵinterpolation1("", ctx_r0.name, ""))',
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// sourceUrl: '../test.ts'
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// });
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});
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it('should map *ngFor scenario', () => {
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const mappings = compileAndMap(
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'<div *ngFor="let item of items; index as i; trackBy: trackByFn">{{ item }}</div>');
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expect(mappings).toContain({
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source: '<div *ngFor="let item of items; index as i; trackBy: trackByFn">',
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generated: 'i0.ɵelementStart(0, "div")',
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sourceUrl: '../test.ts'
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});
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// TODO - map the bindings better
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expect(mappings).toContain(
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{source: '</div>', generated: 'i0.ɵelementEnd()', sourceUrl: '../test.ts'});
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});
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it('should map ng-template [ngFor] scenario', () => {
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const mappings =
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compileAndMap(`<ng-template ngFor [ngForOf]="items" let-item>{{ item }}</ng-template>`);
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// TODO - map the bindings better
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});
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});
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describe('(content projection)', () => {
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it('should map default and selected projection', () => {
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const mappings = compileAndMap(
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`<h3><ng-content select="title"></ng-content></h3>\n` +
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`<div><ng-content></ng-content></div>`);
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expect(mappings).toContain(
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{source: '<h3>', generated: 'i0.ɵelementStart(0, "h3")', sourceUrl: '../test.ts'});
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expect(mappings).toContain({
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source: '<ng-content select="title">',
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generated: 'i0.ɵprojection(1, 1)',
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sourceUrl: '../test.ts'
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});
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expect(mappings).toContain(
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{source: '</h3>', generated: 'i0.ɵelementEnd()', sourceUrl: '../test.ts'});
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expect(mappings).toContain(
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{source: '<div>', generated: 'i0.ɵelementStart(2, "div")', sourceUrl: '../test.ts'});
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expect(mappings).toContain(
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{source: '<ng-content>', generated: 'i0.ɵprojection(3)', sourceUrl: '../test.ts'});
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expect(mappings).toContain(
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{source: '</div>', generated: 'i0.ɵelementEnd()', sourceUrl: '../test.ts'});
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});
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});
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it('should create (simple string) inline template source-mapping', () => {
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const mappings = compileAndMap('<div>this is a test</div><div>{{ 1 + 2 }}</div>');
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// Creation mode
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expect(mappings).toContain(
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{generated: 'i0.ɵelementStart(0, "div")', source: '<div>', sourceUrl: '../test.ts'});
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expect(mappings).toContain({
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generated: 'i0.ɵtext(1, "this is a test")',
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source: 'this is a test',
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sourceUrl: '../test.ts'
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});
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expect(mappings).toContain(
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{generated: 'i0.ɵelementEnd()', source: '</div>', sourceUrl: '../test.ts'});
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expect(mappings).toContain(
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{generated: 'i0.ɵelementStart(2, "div")', source: '<div>', sourceUrl: '../test.ts'});
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expect(mappings).toContain(
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{generated: 'i0.ɵtext(3)', source: '{{ 1 + 2 }}', sourceUrl: '../test.ts'});
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expect(mappings).toContain(
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{generated: 'i0.ɵelementEnd()', source: '</div>', sourceUrl: '../test.ts'});
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// Update mode
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expect(mappings).toContain({
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generated: 'i0.ɵtextBinding(3, i0.ɵinterpolation1("", (1 + 2), ""))',
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source: '{{ 1 + 2 }}',
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sourceUrl: '../test.ts'
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});
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});
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it('should create (simple backtick string) inline template source-mapping', () => {
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const mappings = compileAndMap('<div>this is a test</div><div>{{ 1 + 2 }}</div>');
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// Creation mode
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expect(mappings).toContain(
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{generated: 'i0.ɵelementStart(0, "div")', source: '<div>', sourceUrl: '../test.ts'});
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expect(mappings).toContain({
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generated: 'i0.ɵtext(1, "this is a test")',
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source: 'this is a test',
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sourceUrl: '../test.ts'
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});
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expect(mappings).toContain(
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{generated: 'i0.ɵelementEnd()', source: '</div>', sourceUrl: '../test.ts'});
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expect(mappings).toContain(
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{generated: 'i0.ɵelementStart(2, "div")', source: '<div>', sourceUrl: '../test.ts'});
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expect(mappings).toContain(
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{generated: 'i0.ɵtext(3)', source: '{{ 1 + 2 }}', sourceUrl: '../test.ts'});
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expect(mappings).toContain(
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{generated: 'i0.ɵelementEnd()', source: '</div>', sourceUrl: '../test.ts'});
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// Update mode
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expect(mappings).toContain({
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generated: 'i0.ɵtextBinding(3, i0.ɵinterpolation1("", (1 + 2), ""))',
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source: '{{ 1 + 2 }}',
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sourceUrl: '../test.ts'
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});
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});
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it('should create correct inline template source-mapping when the source contains escape sequences',
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() => {
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// Note that the escaped double quotes, which need un-escaping to be parsed correctly.
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const mappings = compileAndMap('<div class=\\"some-class\\">this is a test</div>');
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expect(mappings).toContain({
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generated: 'i0.ɵelementStart(0, "div", _c0)',
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source: '<div class=\\"some-class\\">',
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sourceUrl: '../test.ts'
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});
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const c2Mapping =
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mappings.find(mapping => /var _c0 = \[1, "some-class"\];/.test(mapping.generated));
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expect(c2Mapping).toBeDefined();
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});
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});
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if (tsSourceMapBug29300Fixed()) {
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describe('External templates (where TS supports source-mapping)', () => {
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it('should create external template source-mapping', () => {
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const mappings =
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compileAndMap('<div>this is a test</div><div>{{ 1 + 2 }}</div>', './dir/test.html');
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// Creation mode
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expect(mappings).toContain({
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generated: 'i0.ɵelementStart(0, "div")',
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source: '<div>',
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sourceUrl: '../dir/test.html'
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});
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expect(mappings).toContain({
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generated: 'i0.ɵtext(1, "this is a test")',
|
|
source: 'this is a test',
|
|
sourceUrl: '../dir/test.html'
|
|
});
|
|
expect(mappings).toContain(
|
|
{generated: 'i0.ɵelementEnd()', source: '</div>', sourceUrl: '../dir/test.html'});
|
|
expect(mappings).toContain({
|
|
generated: 'i0.ɵelementStart(2, "div")',
|
|
source: '<div>',
|
|
sourceUrl: '../dir/test.html'
|
|
});
|
|
expect(mappings).toContain(
|
|
{generated: 'i0.ɵtext(3)', source: '{{ 1 + 2 }}', sourceUrl: '../dir/test.html'});
|
|
expect(mappings).toContain(
|
|
{generated: 'i0.ɵelementEnd()', source: '</div>', sourceUrl: '../dir/test.html'});
|
|
|
|
// Update mode
|
|
expect(mappings).toContain({
|
|
generated: 'i0.ɵtextBinding(3, i0.ɵinterpolation1("", (1 + 2), ""))',
|
|
source: '{{ 1 + 2 }}',
|
|
sourceUrl: '../dir/test.html'
|
|
});
|
|
});
|
|
|
|
it('should create correct mappings when templateUrl is in a different rootDir', () => {
|
|
const mappings = compileAndMap(
|
|
'<div>this is a test</div><div>{{ 1 + 2 }}</div>', 'extraRootDir/test.html');
|
|
|
|
// Creation mode
|
|
expect(mappings).toContain({
|
|
generated: 'i0.ɵelementStart(0, "div")',
|
|
source: '<div>',
|
|
sourceUrl: '../extraRootDir/test.html'
|
|
});
|
|
expect(mappings).toContain({
|
|
generated: 'i0.ɵtext(1, "this is a test")',
|
|
source: 'this is a test',
|
|
sourceUrl: '../extraRootDir/test.html'
|
|
});
|
|
expect(mappings).toContain({
|
|
generated: 'i0.ɵelementEnd()',
|
|
source: '</div>',
|
|
sourceUrl: '../extraRootDir/test.html'
|
|
});
|
|
expect(mappings).toContain({
|
|
generated: 'i0.ɵelementStart(2, "div")',
|
|
source: '<div>',
|
|
sourceUrl: '../extraRootDir/test.html'
|
|
});
|
|
expect(mappings).toContain({
|
|
generated: 'i0.ɵtext(3)',
|
|
source: '{{ 1 + 2 }}',
|
|
sourceUrl: '../extraRootDir/test.html'
|
|
});
|
|
expect(mappings).toContain({
|
|
generated: 'i0.ɵelementEnd()',
|
|
source: '</div>',
|
|
sourceUrl: '../extraRootDir/test.html'
|
|
});
|
|
|
|
// Update mode
|
|
expect(mappings).toContain({
|
|
generated: 'i0.ɵtextBinding(3, i0.ɵinterpolation1("", (1 + 2), ""))',
|
|
source: '{{ 1 + 2 }}',
|
|
sourceUrl: '../extraRootDir/test.html'
|
|
});
|
|
});
|
|
});
|
|
}
|
|
|
|
function compileAndMap(template: string, templateUrl: string | null = null) {
|
|
const templateConfig = templateUrl ? `templateUrl: '${templateUrl}'` :
|
|
('template: `' + template.replace(/`/g, '\\`') + '`');
|
|
env.tsconfig({sourceMap: true});
|
|
env.write('test.ts', `
|
|
import {Component} from '@angular/core';
|
|
|
|
@Component({
|
|
selector: 'test-cmp',
|
|
${templateConfig}
|
|
})
|
|
export class TestCmp {}
|
|
`);
|
|
if (templateUrl) {
|
|
env.write(templateUrl, template);
|
|
}
|
|
env.driveMain();
|
|
return getMappedSegments(env, 'test.js');
|
|
}
|
|
|
|
/**
|
|
* Helper function for debugging failed mappings.
|
|
* This lays out the segment mappings in the console to make it easier to compare.
|
|
*/
|
|
function dumpMappings(mappings: SegmentMapping[]) {
|
|
mappings.forEach(map => {
|
|
// tslint:disable-next-line:no-console
|
|
console.log(
|
|
padValue(map.sourceUrl, 20, 0) + ' : ' + padValue(inspect(map.source), 100, 23) + ' : ' +
|
|
inspect(map.generated));
|
|
});
|
|
function padValue(value: string, max: number, start: number) {
|
|
const padding = value.length > max ? ('\n' +
|
|
' '.repeat(max + start)) :
|
|
' '.repeat(max - value.length);
|
|
return value + padding;
|
|
}
|
|
}
|
|
});
|