38 lines
1.0 KiB
JavaScript
38 lines
1.0 KiB
JavaScript
import dispatch, { init, worker } from './dispatcher-main';
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jest.mock('./get-worker', () => ({
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getWorker: () => ({
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port: {
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postMessage: jest.fn(),
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},
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}),
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}));
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describe('The dispatcher-main', () => {
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beforeEach(() => {
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init();
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});
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test('should create a new shared web worker', () => {
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expect(worker).toBeDefined();
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});
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test('should create a onmessage function', () => {
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expect(worker.port.onmessage).toBeDefined();
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});
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test('should return a promise if no callback is provided', () => {
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expect(dispatch('ping')).toBeInstanceOf(Promise);
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});
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test('should forward the message', () => {
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dispatch('ping');
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expect(worker.port.postMessage).toBeCalledWith({ id: 0, payload: 'ping' });
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});
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test('should return the response', () => {
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var response;
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const callback = (error, success) => {
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response = success;
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};
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dispatch('ping', callback);
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worker.port.onmessage({ data: { id: 0, payload: 'pong' } });
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expect(response).toEqual('pong');
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});
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});
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