575 lines
24 KiB
TypeScript
575 lines
24 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 * as ts from 'typescript';
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import {createLanguageService} from '../src/language_service';
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import {CompletionKind} from '../src/types';
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import {TypeScriptServiceHost} from '../src/typescript_host';
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import {MockTypescriptHost} from './test_utils';
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const APP_COMPONENT = '/app/app.component.ts';
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const PARSING_CASES = '/app/parsing-cases.ts';
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const TEST_TEMPLATE = '/app/test.ng';
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const EXPRESSION_CASES = '/app/expression-cases.ts';
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describe('completions', () => {
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const mockHost = new MockTypescriptHost(['/app/main.ts']);
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const tsLS = ts.createLanguageService(mockHost);
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const ngHost = new TypeScriptServiceHost(mockHost, tsLS);
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const ngLS = createLanguageService(ngHost);
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beforeEach(() => { mockHost.reset(); });
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it('should be able to get entity completions', () => {
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const marker = mockHost.getLocationMarkerFor(APP_COMPONENT, 'entity-amp');
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const completions = ngLS.getCompletionsAt(APP_COMPONENT, marker.start);
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expectContain(completions, CompletionKind.ENTITY, ['&', '>', '<', 'ι']);
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});
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it('should be able to return html elements', () => {
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const locations = ['empty', 'start-tag-h1', 'h1-content', 'start-tag', 'start-tag-after-h'];
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for (const location of locations) {
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const marker = mockHost.getLocationMarkerFor(APP_COMPONENT, location);
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const completions = ngLS.getCompletionsAt(APP_COMPONENT, marker.start);
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expectContain(completions, CompletionKind.HTML_ELEMENT, ['div', 'h1', 'h2', 'span']);
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}
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});
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it('should be able to return component directives', () => {
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const marker = mockHost.getLocationMarkerFor(APP_COMPONENT, 'empty');
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const completions = ngLS.getCompletionsAt(APP_COMPONENT, marker.start);
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expectContain(completions, CompletionKind.COMPONENT, [
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'ng-form',
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'my-app',
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'ng-component',
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'test-comp',
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]);
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});
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it('should be able to return attribute directives', () => {
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const marker = mockHost.getLocationMarkerFor(APP_COMPONENT, 'h1-after-space');
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const completions = ngLS.getCompletionsAt(APP_COMPONENT, marker.start);
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expectContain(completions, CompletionKind.ATTRIBUTE, ['string-model', 'number-model']);
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});
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it('should be able to return angular pseudo elements', () => {
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const marker = mockHost.getLocationMarkerFor(APP_COMPONENT, 'empty');
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const completions = ngLS.getCompletionsAt(APP_COMPONENT, marker.start);
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expectContain(completions, CompletionKind.ANGULAR_ELEMENT, [
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'ng-container',
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'ng-content',
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'ng-template',
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]);
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});
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it('should be able to return h1 attributes', () => {
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const marker = mockHost.getLocationMarkerFor(APP_COMPONENT, 'h1-after-space');
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const completions = ngLS.getCompletionsAt(APP_COMPONENT, marker.start);
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expectContain(completions, CompletionKind.HTML_ATTRIBUTE, [
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'class',
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'id',
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'onclick',
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'onmouseup',
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]);
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});
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it('should be able to find common angular attributes', () => {
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const marker = mockHost.getLocationMarkerFor(APP_COMPONENT, 'div-attributes');
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const completions = ngLS.getCompletionsAt(APP_COMPONENT, marker.start);
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expectContain(completions, CompletionKind.ATTRIBUTE, [
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'(click)',
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'[ngClass]',
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'*ngIf',
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'*ngFor',
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]);
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});
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it('should be able to get the completions at the beginning of an interpolation', () => {
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const marker = mockHost.getLocationMarkerFor(APP_COMPONENT, 'h2-hero');
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const completions = ngLS.getCompletionsAt(APP_COMPONENT, marker.start);
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expectContain(completions, CompletionKind.PROPERTY, ['title', 'hero']);
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});
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it('should not include private members of a class', () => {
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const marker = mockHost.getLocationMarkerFor(APP_COMPONENT, 'h2-hero');
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const completions = ngLS.getCompletionsAt(APP_COMPONENT, marker.start);
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expect(completions).toBeDefined();
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const internal = completions !.entries.find(e => e.name === 'internal');
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expect(internal).toBeUndefined();
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});
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it('should be able to get the completions at the end of an interpolation', () => {
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const marker = mockHost.getLocationMarkerFor(APP_COMPONENT, 'sub-end');
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const completions = ngLS.getCompletionsAt(APP_COMPONENT, marker.start);
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expectContain(completions, CompletionKind.PROPERTY, ['title', 'hero']);
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});
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it('should be able to get the completions in a property', () => {
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const marker = mockHost.getLocationMarkerFor(APP_COMPONENT, 'h2-name');
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const completions = ngLS.getCompletionsAt(APP_COMPONENT, marker.start);
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expectContain(completions, CompletionKind.PROPERTY, ['id', 'name']);
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});
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it('should be able to return attribute names with an incompete attribute', () => {
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const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'no-value-attribute');
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const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
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expectContain(completions, CompletionKind.HTML_ATTRIBUTE, ['id', 'class', 'dir', 'lang']);
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});
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it('should be able to return attributes of an incomplete element', () => {
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const m1 = mockHost.getLocationMarkerFor(PARSING_CASES, 'incomplete-open-lt');
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const c1 = ngLS.getCompletionsAt(PARSING_CASES, m1.start);
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expectContain(c1, CompletionKind.HTML_ELEMENT, ['a', 'div', 'p', 'span']);
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const m2 = mockHost.getLocationMarkerFor(PARSING_CASES, 'incomplete-open-a');
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const c2 = ngLS.getCompletionsAt(PARSING_CASES, m2.start);
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expectContain(c2, CompletionKind.HTML_ELEMENT, ['a', 'div', 'p', 'span']);
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const m3 = mockHost.getLocationMarkerFor(PARSING_CASES, 'incomplete-open-attr');
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const c3 = ngLS.getCompletionsAt(PARSING_CASES, m3.start);
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expectContain(c3, CompletionKind.HTML_ATTRIBUTE, ['id', 'class', 'href', 'name']);
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});
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it('should be able to return completions with a missing closing tag', () => {
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const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'missing-closing');
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const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
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expectContain(completions, CompletionKind.HTML_ELEMENT, ['a', 'div', 'p', 'span', 'h1', 'h2']);
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});
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it('should be able to return common attributes of an unknown tag', () => {
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const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'unknown-element');
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const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
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expectContain(completions, CompletionKind.HTML_ATTRIBUTE, ['id', 'dir', 'lang']);
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});
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it('should be able to get completions in an empty interpolation', () => {
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const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'empty-interpolation');
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const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
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expectContain(completions, CompletionKind.PROPERTY, ['title', 'subTitle']);
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});
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it('should suggest $any() type cast function in an interpolation', () => {
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const marker = mockHost.getLocationMarkerFor(APP_COMPONENT, 'sub-start');
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const completions = ngLS.getCompletionsAt(APP_COMPONENT, marker.start);
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expectContain(completions, CompletionKind.METHOD, ['$any']);
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});
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describe('in external template', () => {
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it('should be able to get entity completions in external template', () => {
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const marker = mockHost.getLocationMarkerFor(TEST_TEMPLATE, 'entity-amp');
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const completions = ngLS.getCompletionsAt(TEST_TEMPLATE, marker.start);
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expectContain(completions, CompletionKind.ENTITY, ['&', '>', '<', 'ι']);
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});
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it('should not return html elements', () => {
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const locations = ['empty', 'start-tag-h1', 'h1-content', 'start-tag', 'start-tag-after-h'];
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for (const location of locations) {
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const marker = mockHost.getLocationMarkerFor(TEST_TEMPLATE, location);
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const completions = ngLS.getCompletionsAt(TEST_TEMPLATE, marker.start);
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expect(completions).toBeDefined();
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const {entries} = completions !;
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expect(entries).not.toContain(jasmine.objectContaining({name: 'div'}));
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expect(entries).not.toContain(jasmine.objectContaining({name: 'h1'}));
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expect(entries).not.toContain(jasmine.objectContaining({name: 'h2'}));
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expect(entries).not.toContain(jasmine.objectContaining({name: 'span'}));
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}
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});
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it('should be able to return element directives', () => {
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const marker = mockHost.getLocationMarkerFor(TEST_TEMPLATE, 'empty');
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const completions = ngLS.getCompletionsAt(TEST_TEMPLATE, marker.start);
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expectContain(completions, CompletionKind.COMPONENT, [
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'ng-form',
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'my-app',
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'ng-component',
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'test-comp',
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]);
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});
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it('should not return html attributes', () => {
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const marker = mockHost.getLocationMarkerFor(TEST_TEMPLATE, 'h1-after-space');
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const completions = ngLS.getCompletionsAt(TEST_TEMPLATE, marker.start);
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expect(completions).toBeDefined();
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const {entries} = completions !;
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expect(entries).not.toContain(jasmine.objectContaining({name: 'class'}));
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expect(entries).not.toContain(jasmine.objectContaining({name: 'id'}));
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expect(entries).not.toContain(jasmine.objectContaining({name: 'onclick'}));
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expect(entries).not.toContain(jasmine.objectContaining({name: 'onmouseup'}));
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});
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it('should be able to find common angular attributes', () => {
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const marker = mockHost.getLocationMarkerFor(TEST_TEMPLATE, 'div-attributes');
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const completions = ngLS.getCompletionsAt(TEST_TEMPLATE, marker.start);
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expectContain(completions, CompletionKind.ATTRIBUTE, [
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'(click)',
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'[ngClass]',
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'*ngIf',
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'*ngFor',
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]);
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});
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});
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describe('with a *ngIf', () => {
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it('should be able to get completions for exported *ngIf variable', () => {
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const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'promised-person-name');
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const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
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expectContain(completions, CompletionKind.PROPERTY, ['name', 'age', 'street']);
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});
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});
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describe('with a *ngFor', () => {
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it('should include a let for empty attribute', () => {
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const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'for-empty');
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const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
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expectContain(completions, CompletionKind.KEY, ['let', 'of']);
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});
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it('should suggest NgForRow members for let initialization expression', () => {
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const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'for-let-i-equal');
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const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
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expectContain(completions, CompletionKind.PROPERTY, [
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'$implicit',
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'ngForOf',
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'index',
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'count',
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'first',
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'last',
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'even',
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'odd',
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]);
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});
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it('should include a let', () => {
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const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'for-let');
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const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
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expectContain(completions, CompletionKind.KEY, ['let', 'of']);
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});
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it('should include an "of"', () => {
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const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'for-of');
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const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
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expectContain(completions, CompletionKind.KEY, ['let', 'of']);
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});
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it('should include field reference', () => {
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const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'for-people');
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const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
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expectContain(completions, CompletionKind.PROPERTY, ['people']);
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});
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it('should include person in the let scope', () => {
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const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'for-interp-person');
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const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
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expectContain(completions, CompletionKind.VARIABLE, ['person']);
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});
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it('should be able to infer the type of a ngForOf', () => {
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for (const location of ['for-interp-name', 'for-interp-age']) {
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const marker = mockHost.getLocationMarkerFor(PARSING_CASES, location);
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const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
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expectContain(completions, CompletionKind.PROPERTY, ['name', 'age', 'street']);
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}
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});
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it('should be able to infer the type of a ngForOf with an async pipe', () => {
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const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'async-person-name');
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const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
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expectContain(completions, CompletionKind.PROPERTY, ['name', 'age', 'street']);
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});
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it('should be able to resolve variable in nested loop', () => {
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mockHost.override(TEST_TEMPLATE, `
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<div *ngFor="let leagueMembers of league">
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<div *ngFor="let member of leagueMembers">
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{{member.~{position}}}
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</div>
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</div>
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`);
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const marker = mockHost.getLocationMarkerFor(TEST_TEMPLATE, 'position');
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const completions = ngLS.getCompletionsAt(TEST_TEMPLATE, marker.start);
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// member variable of type Hero has properties 'id' and 'name'.
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expectContain(completions, CompletionKind.PROPERTY, ['id', 'name']);
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});
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});
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describe('data binding', () => {
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it('should be able to complete property value', () => {
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const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'property-binding-model');
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const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
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expectContain(completions, CompletionKind.PROPERTY, ['test']);
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});
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it('should be able to complete an event', () => {
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const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'event-binding-model');
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const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
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expectContain(completions, CompletionKind.METHOD, ['modelChanged']);
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});
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it('should be able to complete a the LHS of a two-way binding', () => {
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const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'two-way-binding-input');
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const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
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expectContain(completions, CompletionKind.ATTRIBUTE, [
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'ngModel',
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'[ngModel]',
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'(ngModelChange)',
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'[(ngModel)]',
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]);
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});
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it('should be able to complete a the RHS of a two-way binding', () => {
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const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'two-way-binding-model');
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const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
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expectContain(completions, CompletionKind.PROPERTY, ['test']);
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});
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it('should work with input and output', () => {
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const m1 = mockHost.getLocationMarkerFor(PARSING_CASES, 'string-marker');
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const c1 = ngLS.getCompletionsAt(PARSING_CASES, m1.start);
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expectContain(c1, CompletionKind.ATTRIBUTE, ['[model]', '(modelChange)', '[(model)]']);
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const m2 = mockHost.getLocationMarkerFor(PARSING_CASES, 'number-marker');
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const c2 = ngLS.getCompletionsAt(PARSING_CASES, m2.start);
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expectContain(c2, CompletionKind.ATTRIBUTE, ['[inputAlias]', '(outputAlias)']);
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});
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});
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describe('for pipes', () => {
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it('should be able to get a list of pipe values', () => {
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for (const location of ['before-pipe', 'in-pipe', 'after-pipe']) {
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const marker = mockHost.getLocationMarkerFor(PARSING_CASES, location);
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const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
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expectContain(completions, CompletionKind.PIPE, [
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'async',
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'uppercase',
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'lowercase',
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'titlecase',
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]);
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}
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});
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it('should be able to resolve lowercase', () => {
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const marker = mockHost.getLocationMarkerFor(EXPRESSION_CASES, 'string-pipe');
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const completions = ngLS.getCompletionsAt(EXPRESSION_CASES, marker.start);
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expectContain(completions, CompletionKind.METHOD, [
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'charAt',
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'replace',
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'substring',
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'toLowerCase',
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]);
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});
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});
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describe('with references', () => {
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it('should list references', () => {
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const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'test-comp-content');
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const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
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expectContain(completions, CompletionKind.REFERENCE, ['div', 'test1', 'test2']);
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});
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it('should reference the component', () => {
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const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'test-comp-after-test');
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const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
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expectContain(completions, CompletionKind.PROPERTY, ['name', 'testEvent']);
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});
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// TODO: Enable when we have a flag that indicates the project targets the DOM
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// it('should reference the element if no component', () => {
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// const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'test-comp-after-div');
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// const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
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// expectContain(completions, CompletionKind.PROPERTY, ['innerText']);
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// });
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});
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describe('replacement span', () => {
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it('should not generate replacement entries for zero-length replacements', () => {
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const fileName = mockHost.addCode(`
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@Component({
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selector: 'foo-component',
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template: \`
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<div>{{obj.~{key}}}</div>
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\`,
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})
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export class FooComponent {
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obj: {key: 'value'};
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}
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`);
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const location = mockHost.getLocationMarkerFor(fileName, 'key');
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const completions = ngLS.getCompletionsAt(fileName, location.start) !;
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expect(completions).toBeDefined();
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const completion = completions.entries.find(entry => entry.name === 'key') !;
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expect(completion).toBeDefined();
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expect(completion.kind).toBe('property');
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expect(completion.replacementSpan).toBeUndefined();
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});
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it('should work for start of template', () => {
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const fileName = mockHost.addCode(`
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@Component({
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selector: 'foo-component',
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template: \`~{start}abc\`,
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})
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export class FooComponent {}
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`);
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const location = mockHost.getLocationMarkerFor(fileName, 'start');
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const completions = ngLS.getCompletionsAt(fileName, location.start) !;
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expect(completions).toBeDefined();
|
|
const completion = completions.entries.find(entry => entry.name === 'acronym') !;
|
|
expect(completion).toBeDefined();
|
|
expect(completion.kind).toBe('html element');
|
|
expect(completion.replacementSpan).toEqual({start: location.start, length: 3});
|
|
});
|
|
|
|
it('should work for end of template', () => {
|
|
const fileName = mockHost.addCode(`
|
|
@Component({
|
|
selector: 'foo-component',
|
|
template: \`acro~{end}\`,
|
|
})
|
|
export class FooComponent {}
|
|
`);
|
|
const location = mockHost.getLocationMarkerFor(fileName, 'end');
|
|
const completions = ngLS.getCompletionsAt(fileName, location.start) !;
|
|
expect(completions).toBeDefined();
|
|
const completion = completions.entries.find(entry => entry.name === 'acronym') !;
|
|
expect(completion).toBeDefined();
|
|
expect(completion.kind).toBe('html element');
|
|
expect(completion.replacementSpan).toEqual({start: location.start - 4, length: 4});
|
|
});
|
|
|
|
it('should work for middle-word replacements', () => {
|
|
const fileName = mockHost.addCode(`
|
|
@Component({
|
|
selector: 'foo-component',
|
|
template: \`
|
|
<div>{{obj.ke~{key}key}}</div>
|
|
\`,
|
|
})
|
|
export class FooComponent {
|
|
obj: {key: 'value'};
|
|
}
|
|
`);
|
|
const location = mockHost.getLocationMarkerFor(fileName, 'key');
|
|
const completions = ngLS.getCompletionsAt(fileName, location.start) !;
|
|
expect(completions).toBeDefined();
|
|
const completion = completions.entries.find(entry => entry.name === 'key') !;
|
|
expect(completion).toBeDefined();
|
|
expect(completion.kind).toBe('property');
|
|
expect(completion.replacementSpan).toEqual({start: location.start - 2, length: 5});
|
|
});
|
|
|
|
it('should work for all kinds of identifier characters', () => {
|
|
const fileName = mockHost.addCode(`
|
|
@Component({
|
|
selector: 'foo-component',
|
|
template: \`
|
|
<div>{{~{field}$title_1}}</div>
|
|
\`,
|
|
})
|
|
export class FooComponent {
|
|
$title_1: string;
|
|
}
|
|
`);
|
|
const location = mockHost.getLocationMarkerFor(fileName, 'field');
|
|
const completions = ngLS.getCompletionsAt(fileName, location.start) !;
|
|
expect(completions).toBeDefined();
|
|
const completion = completions.entries.find(entry => entry.name === '$title_1') !;
|
|
expect(completion).toBeDefined();
|
|
expect(completion.kind).toBe('property');
|
|
expect(completion.replacementSpan).toEqual({start: location.start, length: 8});
|
|
});
|
|
|
|
it('should work for attributes', () => {
|
|
const fileName = mockHost.addCode(`
|
|
@Component({
|
|
selector: 'foo-component',
|
|
template: \`
|
|
<div cl~{click}></div>
|
|
\`,
|
|
})
|
|
export class FooComponent {}
|
|
`);
|
|
const location = mockHost.getLocationMarkerFor(fileName, 'click');
|
|
const completions = ngLS.getCompletionsAt(fileName, location.start) !;
|
|
expect(completions).toBeDefined();
|
|
const completion = completions.entries.find(entry => entry.name === '(click)') !;
|
|
expect(completion).toBeDefined();
|
|
expect(completion.kind).toBe('attribute');
|
|
expect(completion.replacementSpan).toEqual({start: location.start - 2, length: 2});
|
|
});
|
|
|
|
it('should work for events', () => {
|
|
const fileName = mockHost.addCode(`
|
|
@Component({
|
|
selector: 'foo-component',
|
|
template: \`
|
|
<div (click)="han~{handleClick}"></div>
|
|
\`,
|
|
})
|
|
export class FooComponent {
|
|
handleClick() {}
|
|
}
|
|
`);
|
|
const location = mockHost.getLocationMarkerFor(fileName, 'handleClick');
|
|
const completions = ngLS.getCompletionsAt(fileName, location.start) !;
|
|
expect(completions).toBeDefined();
|
|
const completion = completions.entries.find(entry => entry.name === 'handleClick') !;
|
|
expect(completion).toBeDefined();
|
|
expect(completion.kind).toBe('method');
|
|
expect(completion.replacementSpan).toEqual({start: location.start - 3, length: 3});
|
|
});
|
|
|
|
it('should work for element names', () => {
|
|
const fileName = mockHost.addCode(`
|
|
@Component({
|
|
selector: 'foo-component',
|
|
template: \`
|
|
<di~{div}></div>
|
|
\`,
|
|
})
|
|
export class FooComponent {}
|
|
`);
|
|
const location = mockHost.getLocationMarkerFor(fileName, 'div');
|
|
const completions = ngLS.getCompletionsAt(fileName, location.start) !;
|
|
expect(completions).toBeDefined();
|
|
const completion = completions.entries.find(entry => entry.name === 'div') !;
|
|
expect(completion).toBeDefined();
|
|
expect(completion.kind).toBe('html element');
|
|
expect(completion.replacementSpan).toEqual({start: location.start - 2, length: 2});
|
|
});
|
|
|
|
it('should work for bindings', () => {
|
|
const fileName = mockHost.addCode(`
|
|
@Component({
|
|
selector: 'foo-component',
|
|
template: \`
|
|
<input ngMod~{model} />
|
|
\`,
|
|
})
|
|
export class FooComponent {}
|
|
`);
|
|
const location = mockHost.getLocationMarkerFor(fileName, 'model');
|
|
const completions = ngLS.getCompletionsAt(fileName, location.start) !;
|
|
expect(completions).toBeDefined();
|
|
const completion = completions.entries.find(entry => entry.name === '[(ngModel)]') !;
|
|
expect(completion).toBeDefined();
|
|
expect(completion.kind).toBe('attribute');
|
|
expect(completion.replacementSpan).toEqual({start: location.start - 5, length: 5});
|
|
});
|
|
});
|
|
});
|
|
|
|
function expectContain(
|
|
completions: ts.CompletionInfo | undefined, kind: CompletionKind, names: string[]) {
|
|
expect(completions).toBeDefined();
|
|
for (const name of names) {
|
|
expect(completions !.entries).toContain(jasmine.objectContaining({ name, kind } as any));
|
|
}
|
|
}
|