private boolean trueNegativesBetween(int min, int max) {
for (int i = min; i < max; i++) {
if (i % 3 == 0 && !BinaryRegexp.multipleOf3().matcher(Integer.toBinaryString(i)).matches()) {
return true;
}
}
return false;
}
@Test
public void testValid() {
assertEquals(true, BinaryRegexp.multipleOf3().matcher("000").matches());
assertEquals(false, BinaryRegexp.multipleOf3().matcher("001").matches());
assertEquals(true, BinaryRegexp.multipleOf3().matcher("011").matches());
assertEquals(true, BinaryRegexp.multipleOf3().matcher("110").matches());
assertEquals(false, BinaryRegexp.multipleOf3().matcher("111").matches());
assertEquals(
true, BinaryRegexp.multipleOf3().matcher(Integer.toBinaryString(12345678)).matches());
}
@Test
public void testInvalid() {
assertEquals(false, BinaryRegexp.multipleOf3().matcher(" 0").matches());
assertEquals(false, BinaryRegexp.multipleOf3().matcher("abc").matches());
assertEquals(false, BinaryRegexp.multipleOf3().matcher("011 110").matches());
}
@Test
public void checkType() {
// In fact Pattern and Matcher can't be extended as they are final, but let this be
assertEquals(Pattern.class, BinaryRegexp.multipleOf3().getClass());
assertEquals(Matcher.class, BinaryRegexp.multipleOf3().matcher("").getClass());
}