@Test
public void testFailedValidation() {
String firstValue = "-1";
String secondValue = "0";
String thirdValue = "2";
assertFalse(validator.isValid(firstValue));
assertFalse(validator.isValid(secondValue));
assertFalse(validator.isValid(thirdValue));
}
@Test
public void testSuccessfulValidation() {
int[] powerValues = {0, 1, 2, 3};
int[] multipliers = {1, 5};
int base = 10;
for (int multiplier : multipliers) {
for (int power : powerValues) {
int value = (int) (multiplier * Math.pow(base, power));
assertTrue(validator.isValid(Integer.toString(value)));
}
}
}