47 lines
1.3 KiB
TypeScript
47 lines
1.3 KiB
TypeScript
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/**
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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 {NgtscTestEnvironment} from './env';
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describe('ngtsc incremental compilation', () => {
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let env !: NgtscTestEnvironment;
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beforeEach(() => {
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env = NgtscTestEnvironment.setup();
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env.enableMultipleCompilations();
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env.tsconfig();
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});
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it('should compile incrementally', () => {
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env.write('service.ts', `
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import {Injectable} from '@angular/core';
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@Injectable()
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export class Service {}
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`);
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env.write('test.ts', `
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import {Component} from '@angular/core';
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import {Service} from './service';
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@Component({selector: 'cmp', template: 'cmp'})
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export class Cmp {
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constructor(service: Service) {}
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}
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`);
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env.driveMain();
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env.flushWrittenFileTracking();
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// Pretend a change was made to test.ts.
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env.invalidateCachedFile('test.ts');
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env.driveMain();
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const written = env.getFilesWrittenSinceLastFlush();
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// The component should be recompiled, but not the service.
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expect(written).toContain('/test.js');
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expect(written).not.toContain('/service.js');
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});
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});
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