@Test
public void singletonSortedSet() {
SortedSet<Integer> set = new TreeSet<Integer>();
set.add(1);
this.verify(Collections.<Integer>singletonSortedSet(1), set, 0, 1);
}
@Test
public void singletonSortedMap() {
SortedMap<Integer, String> map = new TreeMap<Integer, String>();
map.put(1, "");
this.verify(Collections.<Integer, String>singletonSortedMap(1, ""), map, 0, 1, "");
}
@Override
public SortedMap<K, V> subMap(K fromKey, K toKey) {
Comparator<K> comparator = naturalComparator();
return ((comparator.compare(this.entry.getKey(), toKey) < 0)
&& (comparator.compare(this.entry.getKey(), fromKey) >= 0))
? this
: Collections.<K, V>emptySortedMap();
}
@Override
public SortedSet<E> subSet(E fromElement, E toElement) {
Comparator<E> comparator = naturalComparator();
return ((comparator.compare(this.element, toElement) < 0)
&& (comparator.compare(this.element, fromElement) >= 0))
? this
: Collections.<E>emptySortedSet();
}
@Override
public SortedMap<K, V> tailMap(K fromKey) {
return (naturalComparator().compare(this.entry.getKey(), fromKey) >= 0)
? this
: Collections.<K, V>emptySortedMap();
}
@Override
public SortedMap<K, V> headMap(K toKey) {
return (naturalComparator().compare(this.entry.getKey(), toKey) < 0)
? this
: Collections.<K, V>emptySortedMap();
}
@Override
public SortedSet<E> tailSet(E fromElement) {
return (naturalComparator().compare(this.element, fromElement) >= 0)
? this
: Collections.<E>emptySortedSet();
}
@Override
public SortedSet<E> headSet(E toElement) {
return (naturalComparator().compare(this.element, toElement) < 0)
? this
: Collections.<E>emptySortedSet();
}
@Test
public void emptySortedSet() {
this.verify(Collections.<Integer>emptySortedSet(), new TreeSet<Integer>(), 0, 1);
}
@Test
public void emptySortedMap() {
this.verify(
Collections.<Integer, String>emptySortedMap(), new TreeMap<Integer, String>(), 0, 1, "");
}
