import { isValidPhoneNumber } from '..'; describe('isValidPhoneNumber', () => { it('should return true for valid string numbers', () => { expect(isValidPhoneNumber('+393892712')).toBe(true); }); it('should return true for formatted string numbers', () => { expect(isValidPhoneNumber('+39 3892 - 712')).toBe(true); }); it('should return false for invalid numbers', () => { expect(isValidPhoneNumber('+441')).toBe(false); expect(isValidPhoneNumber('44')).toBe(false); expect(isValidPhoneNumber('44123')).toBe(false); }); });