@Test
public void hasAtleastOneDigit_shouldReturnTrue_whenStringHasAtleastOneDigit() throws Exception {

  assertEquals(true, validateTor.hasAtleastOneDigit("abcde1"));
  assertEquals(true, validateTor.hasAtleastOneDigit("a1b2c3"));
  assertEquals(true, validateTor.hasAtleastOneDigit("123"));
}