@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 toMap() {
MutableList<Integer> integers = SingletonListTest.newWith(1);
MutableMap<Integer, Integer> map =
integers.toMap(Functions.getIntegerPassThru(), Functions.getIntegerPassThru());
Verify.assertContainsAll(map.keySet(), 1);
Verify.assertContainsAll(map.values(), 1);
}
@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));
}
@Override
@Test(expected = NoSuchElementException.class)
public void minBy() {
ImmutableMap<Integer, String> map = this.classUnderTest();
map.minBy(Functions.getStringPassThru());
}
@Test
public void toSortedListBy() {
MutableList<Integer> integers = SingletonListTest.newWith(1);
MutableList<Integer> list = integers.toSortedListBy(Functions.getIntegerPassThru());
Assert.assertEquals(FastList.newListWith(1), list);
Assert.assertNotSame(integers, list);
}
public static <T extends Comparable<? super T>, V> CaseFunction<T, V> caseDefault(
Function<? super T, ? extends V> defaultFunction,
Predicate<? super T> predicate,
Function<? super T, ? extends V> function) {
CaseFunction<T, V> caseFunction = Functions.caseDefault(defaultFunction);
return caseFunction.addCase(predicate, function);
}
@Override
@Test
public void ifPresentApply() {
Integer absentKey = this.size() + 1;
ImmutableMap<Integer, String> classUnderTest = this.classUnderTest();
Assert.assertNull(classUnderTest.ifPresentApply(absentKey, Functions.getPassThru()));
}
@Test
public void betweenExclusiveNumber() {
assertBetweenExclusive(Predicates.betweenExclusive(1, 3));
assertBetweenExclusive(
Predicates.attributeBetweenExclusive(Functions.getIntegerPassThru(), 1, 3));
}
@Test
public void attributeNotNullWithFunction() {
assertRejects(Predicates.attributeNotNull(Functions.getPassThru()), (Object) null);
assertAccepts(Predicates.attributeNotNull(Functions.getPassThru()), new Object());
}
@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);
}
@Test(expected = UnsupportedOperationException.class)
@Override
public void updateValue_collisions() {
this.<Integer, Integer>newMap().updateValue(0, () -> 0, Functions.identity());
}
@Override
@Test(expected = UnsupportedOperationException.class)
public void getIfAbsentPutWithKey() {
this.newMapWithKeysValues(1, 1, 2, 2, 3, 3)
.getIfAbsentPutWithKey(4, Functions.getIntegerPassThru());
}
public static Function<Object, String> getNullSafeToString(String defaultValue) {
return Functions.nullSafe(TO_STRING_FUNCTION, defaultValue);
}
/**
* Alias for identity(). Inlineable.
*
* @see #identity()
*/
public static <T> Function<T, T> getPassThru() {
return Functions.identity();
}