@novo-learning/novo-sdk/test/unit/utils/timeout.promise.test.ts

SDK for the Novolanguage Speech Analysis API

import { Deferred } from '../../../src/clients/speech-api/utils/deferred.promise';
import { promiseTimeout } from '../../../src/clients/speech-api/utils/timeout.promise';

jest.spyOn(global, 'setTimeout');

describe('Time-out promise', () => {
  it('should resolve true when the promise resolves within time', () => {
    const deferred = new Deferred();
    const toPromise = promiseTimeout(1000, deferred.promise);
    deferred.resolve(true);
    return expect(toPromise).resolves.toBeTruthy();
  });

  it('should resolve false when the promise rejects within time', () => {
    const deferred = new Deferred();
    const toPromise = promiseTimeout(1000, deferred.promise);
    deferred.reject(true);
    return expect(toPromise).resolves.toBeFalsy();
  });

  it('should resolve false when the promise does not resolve or reject within time', () => {
    jest.useFakeTimers();
    const deferred = new Deferred();
    const toPromise = promiseTimeout(1000, deferred.promise);
    jest.runAllTimers();
    jest.useRealTimers();
    return expect(toPromise).resolves.toBeFalsy();
  });
});