public static boolean isCaseSensitiveCustomerId(final String customerId) {
    return NEW_CUSTOMER_CASE_SENSISTIVE_PATTERN.matcher(customerId).matches();
  }
@Test
  public void testCaseInsensitiveNewCustomerIds() {
    for (String validValue : CustomerIdExamples.VALID_CASE_INSENSISTIVE_NEW_CUSTOMER_IDS) {
      assertFalse(validValue + " is case-sensitive customer ID.",
          BaseSupportConfig.isCaseSensitiveCustomerId(validValue));
    }
  }