### Question:
IPAddressValidator implements ServiceAttributeValidator { public boolean validate(Set<String> values) { for (String value : values) { if (!validate(value)) { return false; } } return true; }  boolean validate(Set<String> values); boolean validate(String value);  }### Answer:
@Test(dataProvider = "addresses") public void checkCorrectness(boolean expected, String address) { boolean result = validator.validate(Collections.singleton(address)); assertEquals(result, expected); }