forked from EVOgeek/Vmeda.Online
66 lines
2.0 KiB
TypeScript
66 lines
2.0 KiB
TypeScript
// (C) Copyright 2015 Moodle Pty Ltd.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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import { mock } from '@/testing/utils';
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import { CoreSingletonProxy, makeSingleton, setSingletonsInjector } from '@singletons';
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import { MilkyWayService } from './stubs';
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describe('Singletons', () => {
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let MilkyWay: CoreSingletonProxy<MilkyWayService>;
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beforeEach(() => {
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setSingletonsInjector(mock({ get: serviceClass => new serviceClass() }));
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MilkyWay = makeSingleton(MilkyWayService);
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});
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it('works using the service instance', () => {
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expect(MilkyWay.instance.getTheMeaningOfLife()).toBe(42);
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});
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it('works using magic methods', () => {
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expect(MilkyWay.getTheMeaningOfLife()).toBe(42);
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});
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it('works using magic methods defined as getters', () => {
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expect(MilkyWay.reduceYears(2)).toBe(-2);
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});
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it('works using magic getters', () => {
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expect(MilkyWay.MEANING_OF_LIFE).toBe(42);
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});
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it('works using magic getters defined dynamically', () => {
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expect(MilkyWay.exists).toBeUndefined();
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MilkyWay.bigBang();
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expect(MilkyWay.exists).toBe(true);
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});
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it('magic getters use the same instance', () => {
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expect(MilkyWay.addYears(1)).toBe(1);
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expect(MilkyWay.instance.addYears(1)).toBe(2);
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expect(MilkyWay.addYears(1)).toBe(3);
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expect(MilkyWay.instance.addYears(2)).toBe(5);
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});
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it('magic methods respect inheritance', () => {
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expect(MilkyWay.isGalaxy()).toBe(true);
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});
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});
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