@theia/core/src/common/selection-service.spec.ts

Theia is a cloud & desktop IDE framework implemented in TypeScript.

// *****************************************************************************
// Copyright (C) 2017 TypeFox and others.
//
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License v. 2.0 which is available at
// http://www.eclipse.org/legal/epl-2.0.
//
// This Source Code may also be made available under the following Secondary
// Licenses when the conditions for such availability set forth in the Eclipse
// Public License v. 2.0 are satisfied: GNU General Public License, version 2
// with the GNU Classpath Exception which is available at
// https://www.gnu.org/software/classpath/license.html.
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// SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-only WITH Classpath-exception-2.0
// *****************************************************************************

import { SelectionService } from './selection-service';
import * as chai from 'chai';

const expect = chai.expect;

describe('selection-service', () => {

    describe('01 #addListener and dispose', () => {
        it('Should be rejected when path argument is undefined.', () => {
            const service = createSelectionService();
            // eslint-disable-next-line @typescript-eslint/no-explicit-any
            const events: any[] = [];
            const disposable = service.onSelectionChanged(
                e => events.push(e)
            );
            service.selection = 'foo';
            disposable.dispose();
            service.selection = 'bar';
            expect(events.length).equals(1);
            expect(events[0]).equals('foo');
        });
    });
});

function createSelectionService(): SelectionService {
    return new SelectionService();
}