@theia/core/src/browser/opener-service.spec.ts

// *****************************************************************************
// 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.
//
// SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
// *****************************************************************************

import { DefaultOpenerService, OpenHandler } from './opener-service';
import * as assert from 'assert';
import { MaybePromise } from '../common/types';
import * as chai from 'chai';
const expect = chai.expect;

const id = 'my-opener';
const openHandler: OpenHandler = {
    id,
    label: 'My Opener',
    canHandle(): MaybePromise<number> {
        return Promise.resolve(1);
    },
    open(): MaybePromise<object | undefined> {
        return Promise.resolve(undefined);
    }
};
const openerService = new DefaultOpenerService({
    getContributions: () => [openHandler]
});

describe('opener-service', () => {
    it('getOpeners', () =>
        openerService.getOpeners().then(openers => {
            assert.deepStrictEqual([openHandler], openers);
        }));
    it('addHandler', () => {
        openerService.addHandler(openHandler);
        openerService.getOpeners().then(openers => {
            expect(openers.length).is.equal(2);
        });
    });
});