Files
30-seconds-of-code/test/runPromisesInSeries.test.js
2019-06-26 08:35:24 +03:00

12 lines
375 B
JavaScript

const {runPromisesInSeries} = require('./_30s.js');
test('runPromisesInSeries is a Function', () => {
expect(runPromisesInSeries).toBeInstanceOf(Function);
});
const delay = d => new Promise(r => setTimeout(r, d));
test('Runs promises in series', () => {
return runPromisesInSeries([() => delay(100), () => delay(200)]).then(() =>
expect(true).toBeTruthy()
);
});