itNumber.setCountryCode(39).setNationalNumber(236618300L).setItalianLeadingZero(true);
assertEquals("02 3661 8300", phoneUtil.format(itNumber, PhoneNumberFormat.NATIONAL));
assertEquals("+39 02 3661 8300", phoneUtil.format(itNumber, PhoneNumberFormat.INTERNATIONAL));
assertEquals("+390236618300", phoneUtil.format(itNumber, PhoneNumberFormat.E164));
itNumber.clear();
itNumber.setCountryCode(39).setNationalNumber(345678901L);
assertEquals("345 678 901", phoneUtil.format(itNumber, PhoneNumberFormat.NATIONAL));
assertEquals("+39 345 678 901", phoneUtil.format(itNumber, PhoneNumberFormat.INTERNATIONAL));
assertEquals("+39345678901", phoneUtil.format(itNumber, PhoneNumberFormat.E164));
}