test cases for google library for validation https://www.npmjs.com/package/google-libphonenumber there is java version too

LibPhoneNumberUnitTest.java

package com.sajilni.util;

import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

import com.google.i18n.phonenumbers.NumberParseException;
import com.google.i18n.phonenumbers.PhoneNumberUtil;
import com.google.i18n.phonenumbers.PhoneNumberUtil.PhoneNumberType;
import com.google.i18n.phonenumbers.Phonenumber.PhoneNumber;
import com.google.i18n.phonenumbers.Phonenumber.PhoneNumber.CountryCodeSource;
import org.junit.Test;

public class LibPhoneNumberUnitTest {

  private static final PhoneNumberUtil phoneNumberUtil = PhoneNumberUtil.getInstance();

  @Test
  public void givenPhoneNumberJordan_whenValid_thenOK() throws Exception {

    PhoneNumber phone = phoneNumberUtil
        .parse("+962772211752", CountryCodeSource.UNSPECIFIED.name());

    assertTrue(phoneNumberUtil.isValidNumber(phone));
  }

  @Test
  public void givenPhoneNumber_whenValid_thenOK() throws Exception {

    PhoneNumber phone = phoneNumberUtil
        .parse("+911234567890", CountryCodeSource.UNSPECIFIED.name());

    assertTrue(phoneNumberUtil.isValidNumber(phone));
    assertTrue(phoneNumberUtil.isValidNumberForRegion(phone, "IN"));
    assertFalse(phoneNumberUtil.isValidNumberForRegion(phone, "US"));
    assertTrue(phoneNumberUtil.isValidNumber(phoneNumberUtil.getExampleNumber("IN")));
  }

  @Test
  public void givenPhoneNumber_whenAlphaNumber_thenValid() {
    assertTrue(phoneNumberUtil.isAlphaNumber("325-CARS"));
    assertTrue(phoneNumberUtil.isAlphaNumber("0800 REPAIR"));
    assertTrue(phoneNumberUtil.isAlphaNumber("1-800-MY-APPLE"));
    assertTrue(phoneNumberUtil.isAlphaNumber("1-800-MY-APPLE.."));
    assertFalse(phoneNumberUtil.isAlphaNumber("+876 1234-1234"));
  }

  @Test
  public void givenPhoneNumber_whenPossibleForType_thenValid() {
    PhoneNumber number = new PhoneNumber();
    number.setCountryCode(54);

    number.setNationalNumber(123456);
    assertTrue(phoneNumberUtil.isPossibleNumberForType(number, PhoneNumberType.FIXED_LINE));
    assertFalse(phoneNumberUtil.isPossibleNumberForType(number, PhoneNumberType.TOLL_FREE));

    number.setNationalNumber(12345678901L);
    assertFalse(phoneNumberUtil.isPossibleNumberForType(number, PhoneNumberType.FIXED_LINE));
    assertTrue(phoneNumberUtil.isPossibleNumberForType(number, PhoneNumberType.MOBILE));
    assertFalse(phoneNumberUtil.isPossibleNumberForType(number, PhoneNumberType.TOLL_FREE));
  }

  @Test
  public void givenPhoneNumber_whenPossible_thenValid() {
    PhoneNumber number = new PhoneNumber();
    number.setCountryCode(1)
        .setNationalNumber(123000L);
    assertFalse(phoneNumberUtil.isPossibleNumber(number));
    assertFalse(phoneNumberUtil.isPossibleNumber("+1 343 253 00000", "US"));
    assertFalse(phoneNumberUtil.isPossibleNumber("(343) 253-00000", "US"));
    assertFalse(phoneNumberUtil.isPossibleNumber("dial p for pizza", "US"));
    assertFalse(phoneNumberUtil.isPossibleNumber("123-000", "US"));
  }

  @Test
  public void givenPhoneNumber_whenNumberGeographical_thenValid() throws NumberParseException {

    PhoneNumber phone = phoneNumberUtil.parse("+911234567890", "IN");
    assertTrue(phoneNumberUtil.isNumberGeographical(phone));

    phone = new PhoneNumber().setCountryCode(1)
        .setNationalNumber(2530000L);
    assertFalse(phoneNumberUtil.isNumberGeographical(phone));

    phone = new PhoneNumber().setCountryCode(800)
        .setNationalNumber(12345678L);
    assertFalse(phoneNumberUtil.isNumberGeographical(phone));
  }
}