import { decimalToHex } from '../DecimalToHex' describe('DecimalToHex', () => { it('expects to return correct hexadecimal value', () => { expect(decimalToHex(255)).toBe('FF') }) it('expects to return correct hexadecimal value, matching (num).toString(16)', () => { expect(decimalToHex(32768)).toBe((32768).toString(16).toUpperCase()) }) it('expects to not handle negative numbers', () => { expect(decimalToHex(-32768)).not.toBe((-32768).toString(16).toUpperCase()) }) })