/* eslint-env mocha */ import assert from 'assert' import getQuarter from '.' describe('getQuarter', () => { it('returns the quarter of the given date', () => { const result = getQuarter(new Date(2014, 6 /* Jul */, 2)) assert(result === 3) }) it('accepts a timestamp', () => { const result = getQuarter(new Date(2014, 3 /* Apr */, 2).getTime()) assert(result === 2) }) it('returns NaN if the given date is invalid', () => { const result = getQuarter(new Date(NaN)) assert(isNaN(result)) }) it('throws TypeError exception if passed less than 1 argument', () => { // @ts-expect-error assert.throws(getQuarter.bind(null), TypeError) }) })