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Test subMap and tailMap (#94) 

* add a junit for the HeadMap in the UnmodifiableSortedMapTest

* add junit for the subMap and tailMap in the UnmodifiableSortedMapTest
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dota17 2019-10-29 22:21:36 +08:00 committed by Gary Gregory
parent d29377dbfb
commit 82cfa665a0
1 changed files with 35 additions and 0 deletions
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35
src/test/java/org/apache/commons/collections4/map/UnmodifiableSortedMapTest.java
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@ -86,6 +86,41 @@ public class UnmodifiableSortedMapTest<K, V> extends AbstractSortedMapTest<K, V>
final SortedMap<K, V> m = new TreeMap<>();
// "again" is the first key of the map
assertSame(m.isEmpty(), map.headMap((K) "again").isEmpty());
assertSame(18, map.size());
// "you" is the last key of the map
assertSame(17, map.headMap((K) "you").size());
// "we'll" is the before key of "you"
assertSame(16, map.headMap((K) "we'll").size());
}
//-----------------------------------------------------------------------
public void testTailMap() {
final SortedMap<K, V> map = makeFullMap();
assertSame(18, map.size());
// "you" is the last key of the map
assertSame(1, map.tailMap((K) "you").size());
// "we'll" is the before key of "you"
assertSame(2, map.tailMap((K) "we'll").size());
// "again" is the first key of the map
assertSame(18, map.tailMap((K) "again").size());
}
//-----------------------------------------------------------------------
public void testSubMap() {
final SortedMap<K, V> map = makeFullMap();
assertSame(18, map.size());
// get the sub map from again to you(exclusive)
assertSame(17, map.subMap((K) "again", (K) "you").size());
// get the sub map from again to we'll(exclusive)
assertSame(16, map.subMap((K) "again", (K) "we'll").size());
// "again" is the first key of the map
assertSame(0, map.subMap((K) "again", (K) "again").size());
assertSame(map.headMap((K)"you").size(), map.subMap((K) "again", (K) "you").size());
}
//-----------------------------------------------------------------------