88 lines
2.7 KiB
TypeScript
88 lines
2.7 KiB
TypeScript
/*
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* Copyright 2025 coze-dev Authors
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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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*/
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import { GlobalEventBus } from '../src/event-bus';
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vi.mock('eventemitter3', () => ({
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default: class MockEventEmitter {
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eventsMap: Map<string, (() => void)[]> = new Map();
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emit(e: string) {
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const cbs = this.eventsMap.get(e) ?? [];
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cbs.forEach(cb => {
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cb();
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});
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}
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on(e: string, cb: () => void) {
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const cbs = this.eventsMap.get(e) ?? [];
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if (!cbs.find(cb)) {
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cbs.push(cb);
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this.eventsMap.set(e, cbs);
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}
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}
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off(e: string, cb: () => void) {
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const cbs = this.eventsMap.get(e) ?? [];
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const idx = cbs.findIndex(c => c === cb);
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if (idx !== -1) {
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cbs.splice(idx, 1);
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this.eventsMap.set(e, cbs);
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}
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}
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},
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}));
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describe('event-bus', () => {
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afterEach(() => {
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vi.clearAllMocks();
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});
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test('A single key corresponds to a unique instance', () => {
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const testGlobalEventBus1 = GlobalEventBus.create('test');
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const testGlobalEventBus2 = GlobalEventBus.create('test');
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expect(testGlobalEventBus1).equal(testGlobalEventBus2);
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});
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test('Should not trigger events if not started or calling `clear`', () => {
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const testGlobalEventBus = GlobalEventBus.create('test2');
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testGlobalEventBus.stop();
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const testCb = vi.fn();
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testGlobalEventBus.on('test_event', testCb);
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testGlobalEventBus.emit('test_event');
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expect(testCb).not.toHaveBeenCalled();
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// Clear the buffer
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testGlobalEventBus.clear();
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testGlobalEventBus.start();
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expect(testCb).not.toHaveBeenCalled();
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});
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test('Should trigger events if started', () => {
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const testGlobalEventBus = GlobalEventBus.create('test3');
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const testCb1 = vi.fn();
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testGlobalEventBus.on('test_event', testCb1);
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testGlobalEventBus.emit('test_event');
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expect(testCb1).toHaveBeenCalled();
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});
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test('Should trigger events if started', () => {
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const testGlobalEventBus = GlobalEventBus.create('test4');
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const testCb1 = vi.fn();
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testGlobalEventBus.on('test_event', testCb1);
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testGlobalEventBus.off('test_event', testCb1);
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testGlobalEventBus.emit('test_event');
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expect(testCb1).not.toHaveBeenCalled();
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});
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});
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