@Test
public void shouldReturnTrueIfValidISBN() throws Exception {
boolean actual = isbnConstraintValidator.isValid("0132350882", constraintValidatorContext);
assertTrue(actual);
}
@Test
public void shouldReturnFalsIfInvalidISBN() throws Exception {
boolean actual = isbnConstraintValidator.isValid("0123459789", constraintValidatorContext);
assertFalse(actual);
}
@Test
public void initializeShouldTakeIsbn() throws Exception {
ISBN isbn = mock(ISBN.class);
isbnConstraintValidator.initialize(isbn);
}