@Test
public void attributeNotNull() {
Twin<String> testCandidate = Tuples.twin("Hello", null);
assertAccepts(Predicates.attributeNotNull(Functions.firstOfPair()), testCandidate);
assertRejects(Predicates.attributeNotNull(Functions.secondOfPair()), testCandidate);
assertToString(Predicates.attributeNotNull(Functions.<String>firstOfPair()));
}
@Test
public void attributeBetweenInclusive() {
Predicate<Pair<Integer, ?>> predicate =
Predicates.attributeBetweenInclusive(Functions.firstOfPair(), 9, 11);
assertAccepts(predicate, Tuples.twin(9, 0), Tuples.twin(10, 0), Tuples.twin(11, 0));
assertRejects(predicate, Tuples.twin(8, 0), Tuples.twin(12, 0));
}
@Test
public void attributeIsNullWithFunctionName() {
Twin<Integer> target = Tuples.twin(null, 1);
assertAccepts(Predicates.attributeIsNull(Functions.firstOfPair()), target);
assertRejects(Predicates.attributeIsNull(Functions.secondOfPair()), target);
}
@Test
public void ifFalseWithClassAndFunctionName() {
Twin<Boolean> target = Tuples.twin(true, false);
assertRejects(Predicates.ifFalse(Functions.firstOfPair()), target);
assertAccepts(Predicates.ifFalse(Functions.secondOfPair()), target);
}