import formatPhoneNumber from '../FormatPhoneNumber'

describe('Testing the formatPhoneNumber functions', () => {

it('expects to throw a type error', () => {

expect(() => formatPhoneNumber('1234567')).toThrow('Invalid phone number!')

expect(() => formatPhoneNumber('123456text')).toThrow(

'Invalid phone number!'

)

expect(() => formatPhoneNumber(12345)).toThrow('Invalid phone number!')

})

it('expects to return the formatted phone number', () => {

expect(formatPhoneNumber('1234567890')).toEqual('(123) 456-7890')

expect(formatPhoneNumber('2124323322')).toEqual('(212) 432-3322')

expect(formatPhoneNumber('1721543455')).toEqual('(172) 154-3455')

})

})