angular-cn/packages/language-service/test/completions_spec.ts

344 lines
15 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 * as ts from 'typescript';
import {createLanguageService} from '../src/language_service';
import {CompletionKind} from '../src/types';
import {TypeScriptServiceHost} from '../src/typescript_host';
import {MockTypescriptHost} from './test_utils';
const APP_COMPONENT = '/app/app.component.ts';
const PARSING_CASES = '/app/parsing-cases.ts';
const TEST_TEMPLATE = '/app/test.ng';
const EXPRESSION_CASES = '/app/expression-cases.ts';
describe('completions', () => {
const mockHost = new MockTypescriptHost(['/app/main.ts']);
const tsLS = ts.createLanguageService(mockHost);
const ngHost = new TypeScriptServiceHost(mockHost, tsLS);
const ngLS = createLanguageService(ngHost);
it('should be able to get entity completions', () => {
const marker = mockHost.getLocationMarkerFor(APP_COMPONENT, 'entity-amp');
const completions = ngLS.getCompletionsAt(APP_COMPONENT, marker.start);
expectContain(completions, CompletionKind.ENTITY, ['&', '>', '<', 'ι']);
});
it('should be able to return html elements', () => {
const locations = ['empty', 'start-tag-h1', 'h1-content', 'start-tag', 'start-tag-after-h'];
for (const location of locations) {
const marker = mockHost.getLocationMarkerFor(APP_COMPONENT, location);
const completions = ngLS.getCompletionsAt(APP_COMPONENT, marker.start);
expectContain(completions, CompletionKind.ELEMENT, ['div', 'h1', 'h2', 'span']);
}
});
it('should be able to return element directives', () => {
const marker = mockHost.getLocationMarkerFor(APP_COMPONENT, 'empty');
const completions = ngLS.getCompletionsAt(APP_COMPONENT, marker.start);
expectContain(completions, CompletionKind.COMPONENT, [
'ng-form',
'my-app',
'ng-component',
'test-comp',
]);
});
it('should be able to return h1 attributes', () => {
const marker = mockHost.getLocationMarkerFor(APP_COMPONENT, 'h1-after-space');
const completions = ngLS.getCompletionsAt(APP_COMPONENT, marker.start);
expectContain(completions, CompletionKind.HTML_ATTRIBUTE, [
'class',
'id',
'onclick',
'onmouseup',
]);
});
it('should be able to find common angular attributes', () => {
const marker = mockHost.getLocationMarkerFor(APP_COMPONENT, 'div-attributes');
const completions = ngLS.getCompletionsAt(APP_COMPONENT, marker.start);
expectContain(completions, CompletionKind.ATTRIBUTE, [
'(click)',
'[ngClass]',
'*ngIf',
'*ngFor',
]);
});
it('should be able to get the completions at the beginning of an interpolation', () => {
const marker = mockHost.getLocationMarkerFor(APP_COMPONENT, 'h2-hero');
const completions = ngLS.getCompletionsAt(APP_COMPONENT, marker.start);
expectContain(completions, CompletionKind.PROPERTY, ['title', 'hero']);
});
it('should not include private members of a class', () => {
const marker = mockHost.getLocationMarkerFor(APP_COMPONENT, 'h2-hero');
const completions = ngLS.getCompletionsAt(APP_COMPONENT, marker.start);
expect(completions).toBeDefined();
const internal = completions !.entries.find(e => e.name === 'internal');
expect(internal).toBeUndefined();
});
it('should be able to get the completions at the end of an interpolation', () => {
const marker = mockHost.getLocationMarkerFor(APP_COMPONENT, 'sub-end');
const completions = ngLS.getCompletionsAt(APP_COMPONENT, marker.start);
expectContain(completions, CompletionKind.PROPERTY, ['title', 'hero']);
});
it('should be able to get the completions in a property', () => {
const marker = mockHost.getLocationMarkerFor(APP_COMPONENT, 'h2-name');
const completions = ngLS.getCompletionsAt(APP_COMPONENT, marker.start);
expectContain(completions, CompletionKind.PROPERTY, ['id', 'name']);
});
it('should be able to return attribute names with an incompete attribute', () => {
const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'no-value-attribute');
const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
expectContain(completions, CompletionKind.HTML_ATTRIBUTE, ['id', 'class', 'dir', 'lang']);
});
it('should be able to return attributes of an incomplete element', () => {
const m1 = mockHost.getLocationMarkerFor(PARSING_CASES, 'incomplete-open-lt');
const c1 = ngLS.getCompletionsAt(PARSING_CASES, m1.start);
expectContain(c1, CompletionKind.ELEMENT, ['a', 'div', 'p', 'span']);
const m2 = mockHost.getLocationMarkerFor(PARSING_CASES, 'incomplete-open-a');
const c2 = ngLS.getCompletionsAt(PARSING_CASES, m2.start);
expectContain(c2, CompletionKind.ELEMENT, ['a', 'div', 'p', 'span']);
const m3 = mockHost.getLocationMarkerFor(PARSING_CASES, 'incomplete-open-attr');
const c3 = ngLS.getCompletionsAt(PARSING_CASES, m3.start);
expectContain(c3, CompletionKind.HTML_ATTRIBUTE, ['id', 'class', 'href', 'name']);
});
it('should be able to return completions with a missing closing tag', () => {
const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'missing-closing');
const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
expectContain(completions, CompletionKind.ELEMENT, ['a', 'div', 'p', 'span', 'h1', 'h2']);
});
it('should be able to return common attributes of an unknown tag', () => {
const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'unknown-element');
const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
expectContain(completions, CompletionKind.HTML_ATTRIBUTE, ['id', 'dir', 'lang']);
});
it('should be able to get completions in an empty interpolation', () => {
const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'empty-interpolation');
const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
expectContain(completions, CompletionKind.PROPERTY, ['title', 'subTitle']);
});
describe('in external template', () => {
it('should be able to get entity completions in external template', () => {
const marker = mockHost.getLocationMarkerFor(TEST_TEMPLATE, 'entity-amp');
const completions = ngLS.getCompletionsAt(TEST_TEMPLATE, marker.start);
expectContain(completions, CompletionKind.ENTITY, ['&', '>', '<', 'ι']);
});
it('should be able to return html elements', () => {
const locations = ['empty', 'start-tag-h1', 'h1-content', 'start-tag', 'start-tag-after-h'];
for (const location of locations) {
const marker = mockHost.getLocationMarkerFor(TEST_TEMPLATE, location);
const completions = ngLS.getCompletionsAt(TEST_TEMPLATE, marker.start);
expectContain(completions, CompletionKind.ELEMENT, ['div', 'h1', 'h2', 'span']);
}
});
it('should be able to return element diretives', () => {
const marker = mockHost.getLocationMarkerFor(TEST_TEMPLATE, 'empty');
const completions = ngLS.getCompletionsAt(TEST_TEMPLATE, marker.start);
expectContain(completions, CompletionKind.COMPONENT, [
'ng-form',
'my-app',
'ng-component',
'test-comp',
]);
});
it('should be able to return h1 attributes', () => {
const marker = mockHost.getLocationMarkerFor(TEST_TEMPLATE, 'h1-after-space');
const completions = ngLS.getCompletionsAt(TEST_TEMPLATE, marker.start);
expectContain(completions, CompletionKind.HTML_ATTRIBUTE, [
'class',
'id',
'onclick',
'onmouseup',
]);
});
it('should be able to find common angular attributes', () => {
const marker = mockHost.getLocationMarkerFor(TEST_TEMPLATE, 'div-attributes');
const completions = ngLS.getCompletionsAt(TEST_TEMPLATE, marker.start);
expectContain(completions, CompletionKind.ATTRIBUTE, [
'(click)',
'[ngClass]',
'*ngIf',
'*ngFor',
]);
});
});
describe('with a *ngIf', () => {
it('should be able to get completions for exported *ngIf variable', () => {
const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'promised-person-name');
const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
expectContain(completions, CompletionKind.PROPERTY, ['name', 'age', 'street']);
});
});
describe('with a *ngFor', () => {
it('should include a let for empty attribute', () => {
const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'for-empty');
const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
expectContain(completions, CompletionKind.KEY, ['let', 'of']);
});
it('should suggest NgForRow members for let initialization expression', () => {
const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'for-let-i-equal');
const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
expectContain(completions, CompletionKind.PROPERTY, [
'$implicit',
'ngForOf',
'index',
'count',
'first',
'last',
'even',
'odd',
]);
});
it('should include a let', () => {
const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'for-let');
const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
expectContain(completions, CompletionKind.KEY, ['let', 'of']);
});
it('should include an "of"', () => {
const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'for-of');
const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
expectContain(completions, CompletionKind.KEY, ['let', 'of']);
});
it('should include field reference', () => {
const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'for-people');
const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
expectContain(completions, CompletionKind.PROPERTY, ['people']);
});
it('should include person in the let scope', () => {
const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'for-interp-person');
const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
expectContain(completions, CompletionKind.VARIABLE, ['person']);
});
it('should be able to infer the type of a ngForOf', () => {
for (const location of ['for-interp-name', 'for-interp-age']) {
const marker = mockHost.getLocationMarkerFor(PARSING_CASES, location);
const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
expectContain(completions, CompletionKind.PROPERTY, ['name', 'age', 'street']);
}
});
it('should be able to infer the type of a ngForOf with an async pipe', () => {
const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'async-person-name');
const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
expectContain(completions, CompletionKind.PROPERTY, ['name', 'age', 'street']);
});
});
describe('data binding', () => {
it('should be able to complete property value', () => {
const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'property-binding-model');
const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
expectContain(completions, CompletionKind.PROPERTY, ['test']);
});
it('should be able to complete an event', () => {
const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'event-binding-model');
const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
expectContain(completions, CompletionKind.METHOD, ['modelChanged']);
});
it('should be able to complete a two-way binding', () => {
const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'two-way-binding-model');
const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
expectContain(completions, CompletionKind.PROPERTY, ['test']);
});
it('should work with input and output', () => {
const m1 = mockHost.getLocationMarkerFor(PARSING_CASES, 'string-marker');
const c1 = ngLS.getCompletionsAt(PARSING_CASES, m1.start);
expectContain(c1, CompletionKind.ATTRIBUTE, ['[model]', '(model)']);
const m2 = mockHost.getLocationMarkerFor(PARSING_CASES, 'number-marker');
const c2 = ngLS.getCompletionsAt(PARSING_CASES, m2.start);
expectContain(c2, CompletionKind.ATTRIBUTE, ['[inputAlias]', '(outputAlias)']);
});
});
describe('for pipes', () => {
it('should be able to get a list of pipe values', () => {
for (const location of ['before-pipe', 'in-pipe', 'after-pipe']) {
const marker = mockHost.getLocationMarkerFor(PARSING_CASES, location);
const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
expectContain(completions, CompletionKind.PIPE, [
'async',
'uppercase',
'lowercase',
'titlecase',
]);
}
});
it('should be able to resolve lowercase', () => {
const marker = mockHost.getLocationMarkerFor(EXPRESSION_CASES, 'string-pipe');
const completions = ngLS.getCompletionsAt(EXPRESSION_CASES, marker.start);
expectContain(completions, CompletionKind.METHOD, [
'charAt',
'replace',
'substring',
'toLowerCase',
]);
});
});
describe('with references', () => {
it('should list references', () => {
const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'test-comp-content');
const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
expectContain(completions, CompletionKind.REFERENCE, ['div', 'test1', 'test2']);
});
it('should reference the component', () => {
const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'test-comp-after-test');
const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
expectContain(completions, CompletionKind.PROPERTY, ['name', 'testEvent']);
});
// TODO: Enable when we have a flag that indicates the project targets the DOM
// it('should reference the element if no component', () => {
// const marker = mockHost.getLocationMarkerFor(PARSING_CASES, 'test-comp-after-div');
// const completions = ngLS.getCompletionsAt(PARSING_CASES, marker.start);
// expectContain(completions, CompletionKind.PROPERTY, ['innerText']);
// });
});
});
function expectContain(
completions: ts.CompletionInfo | undefined, kind: CompletionKind, names: string[]) {
expect(completions).toBeDefined();
expect(completions !.entries).toEqual(jasmine.arrayContaining(names.map(name => {
return jasmine.objectContaining({name, kind});
}) as any));
}