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[READ-ONLY] Mirror of https://github.com/wojtekmaj/async-array-utils. A collection of array-related async utilities.
array array-methods async promise utils
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1.5 kB · 55 lines
JavaScript
at yarn-2
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556import asyncForEach from './forEach';
import { inputArr, makePushDuplicate, makePushDuplicateInRandomTime,} from '../test-utils';
describe('asyncForEach()', () => { it.skip('assertions below are valid for synchronous .forEach()', () => { const [arr, pushDuplicate] = makePushDuplicate(); const mapper = jest.fn().mockImplementation(pushDuplicate);
inputArr.forEach(mapper);
expect.assertions(1 + inputArr.length);
expect(mapper).toHaveBeenCalledTimes(inputArr.length); inputArr.forEach((el) => { expect(arr).toContain(el * 2); }); });
it('iterates through an array properly', async () => { const [arr, pushDuplicate] = makePushDuplicateInRandomTime(); const mapper = jest.fn().mockImplementation(pushDuplicate);
await asyncForEach(inputArr, mapper);
expect.assertions(1 + inputArr.length);
expect(mapper).toHaveBeenCalledTimes(inputArr.length); inputArr.forEach((el) => { expect(arr).toContain(el * 2); }); });
it.skip('assertions below are valid for synchronous .forEach()', () => { const [, pushDuplicate] = makePushDuplicate(); const mapper = jest.fn().mockImplementation(pushDuplicate);
const result = inputArr.forEach(mapper);
expect(result).toBe(undefined); });
it('returns undefined', async () => { const [, pushDuplicate] = makePushDuplicate(); const mapper = jest.fn().mockImplementation(pushDuplicate);
const result = await asyncForEach(inputArr, mapper);
expect(result).toBe(undefined); });});