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dl |
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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/licenses/publicdomain |
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*/ |
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import junit.framework.*; |
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import java.util.*; |
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import java.util.concurrent.*; |
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import java.io.*; |
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public class TreeSubMapTest extends JSR166TestCase { |
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public static void main(String[] args) { |
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junit.textui.TestRunner.run (suite()); |
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} |
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public static Test suite() { |
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return new TestSuite(TreeSubMapTest.class); |
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} |
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/** |
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* Create a map from Integers 1-5 to Strings "A"-"E". |
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*/ |
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private static NavigableMap map5() { |
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TreeMap map = new TreeMap(); |
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assertTrue(map.isEmpty()); |
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map.put(zero, "Z"); |
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map.put(one, "A"); |
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map.put(five, "E"); |
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map.put(three, "C"); |
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map.put(two, "B"); |
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map.put(four, "D"); |
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map.put(seven, "F"); |
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assertFalse(map.isEmpty()); |
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assertEquals(7, map.size()); |
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return map.navigableSubMap(one, seven); |
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} |
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private static NavigableMap map0() { |
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TreeMap map = new TreeMap(); |
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assertTrue(map.isEmpty()); |
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return map.navigableTailMap(one); |
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} |
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/** |
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* clear removes all pairs |
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*/ |
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public void testClear() { |
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NavigableMap map = map5(); |
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map.clear(); |
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assertEquals(map.size(), 0); |
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} |
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/** |
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* Maps with same contents are equal |
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*/ |
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public void testEquals() { |
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NavigableMap map1 = map5(); |
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NavigableMap map2 = map5(); |
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assertEquals(map1, map2); |
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assertEquals(map2, map1); |
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map1.clear(); |
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assertFalse(map1.equals(map2)); |
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assertFalse(map2.equals(map1)); |
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} |
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/** |
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* containsKey returns true for contained key |
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*/ |
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public void testContainsKey() { |
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NavigableMap map = map5(); |
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assertTrue(map.containsKey(one)); |
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assertFalse(map.containsKey(zero)); |
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} |
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/** |
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* containsValue returns true for held values |
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*/ |
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public void testContainsValue() { |
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NavigableMap map = map5(); |
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assertTrue(map.containsValue("A")); |
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assertFalse(map.containsValue("Z")); |
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} |
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/** |
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* get returns the correct element at the given key, |
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* or null if not present |
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*/ |
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public void testGet() { |
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NavigableMap map = map5(); |
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assertEquals("A", (String)map.get(one)); |
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NavigableMap empty = map0(); |
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assertNull(empty.get(one)); |
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} |
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/** |
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* isEmpty is true of empty map and false for non-empty |
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*/ |
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public void testIsEmpty() { |
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NavigableMap empty = map0(); |
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NavigableMap map = map5(); |
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assertTrue(empty.isEmpty()); |
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assertFalse(map.isEmpty()); |
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} |
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/** |
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* firstKey returns first key |
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*/ |
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public void testFirstKey() { |
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NavigableMap map = map5(); |
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assertEquals(one, map.firstKey()); |
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} |
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/** |
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* lastKey returns last key |
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*/ |
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public void testLastKey() { |
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NavigableMap map = map5(); |
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assertEquals(five, map.lastKey()); |
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} |
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/** |
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* keySet returns a Set containing all the keys |
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*/ |
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public void testKeySet() { |
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NavigableMap map = map5(); |
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Set s = map.keySet(); |
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assertEquals(5, s.size()); |
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assertTrue(s.contains(one)); |
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assertTrue(s.contains(two)); |
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assertTrue(s.contains(three)); |
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assertTrue(s.contains(four)); |
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assertTrue(s.contains(five)); |
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} |
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/** |
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* keySet is ordered |
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*/ |
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public void testKeySetOrder() { |
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NavigableMap map = map5(); |
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Set s = map.keySet(); |
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Iterator i = s.iterator(); |
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Integer last = (Integer)i.next(); |
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assertEquals(last, one); |
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while (i.hasNext()) { |
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Integer k = (Integer)i.next(); |
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assertTrue(last.compareTo(k) < 0); |
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last = k; |
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} |
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} |
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/** |
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* values collection contains all values |
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*/ |
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public void testValues() { |
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NavigableMap map = map5(); |
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Collection s = map.values(); |
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assertEquals(5, s.size()); |
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assertTrue(s.contains("A")); |
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assertTrue(s.contains("B")); |
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assertTrue(s.contains("C")); |
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assertTrue(s.contains("D")); |
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assertTrue(s.contains("E")); |
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} |
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/** |
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* entrySet contains all pairs |
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*/ |
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public void testEntrySet() { |
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NavigableMap map = map5(); |
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Set s = map.entrySet(); |
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assertEquals(5, s.size()); |
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Iterator it = s.iterator(); |
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while (it.hasNext()) { |
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Map.Entry e = (Map.Entry) it.next(); |
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assertTrue( |
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(e.getKey().equals(one) && e.getValue().equals("A")) || |
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(e.getKey().equals(two) && e.getValue().equals("B")) || |
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(e.getKey().equals(three) && e.getValue().equals("C")) || |
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(e.getKey().equals(four) && e.getValue().equals("D")) || |
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(e.getKey().equals(five) && e.getValue().equals("E"))); |
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} |
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} |
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/** |
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* putAll adds all key-value pairs from the given map |
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*/ |
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public void testPutAll() { |
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NavigableMap empty = map0(); |
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NavigableMap map = map5(); |
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empty.putAll(map); |
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assertEquals(5, empty.size()); |
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assertTrue(empty.containsKey(one)); |
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assertTrue(empty.containsKey(two)); |
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assertTrue(empty.containsKey(three)); |
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assertTrue(empty.containsKey(four)); |
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assertTrue(empty.containsKey(five)); |
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} |
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/** |
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* remove removes the correct key-value pair from the map |
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*/ |
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public void testRemove() { |
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NavigableMap map = map5(); |
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map.remove(five); |
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assertEquals(4, map.size()); |
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assertFalse(map.containsKey(five)); |
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} |
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/** |
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* lowerEntry returns preceding entry. |
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*/ |
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public void testLowerEntry() { |
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NavigableMap map = map5(); |
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Map.Entry e1 = map.lowerEntry(three); |
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assertEquals(two, e1.getKey()); |
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Map.Entry e2 = map.lowerEntry(six); |
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assertEquals(five, e2.getKey()); |
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Map.Entry e3 = map.lowerEntry(one); |
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assertNull(e3); |
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Map.Entry e4 = map.lowerEntry(zero); |
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assertNull(e4); |
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} |
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/** |
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* higherEntry returns next entry. |
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*/ |
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public void testHigherEntry() { |
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NavigableMap map = map5(); |
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Map.Entry e1 = map.higherEntry(three); |
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assertEquals(four, e1.getKey()); |
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Map.Entry e2 = map.higherEntry(zero); |
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assertEquals(one, e2.getKey()); |
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Map.Entry e3 = map.higherEntry(five); |
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assertNull(e3); |
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Map.Entry e4 = map.higherEntry(six); |
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assertNull(e4); |
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} |
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/** |
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* floorEntry returns preceding entry. |
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*/ |
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public void testFloorEntry() { |
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NavigableMap map = map5(); |
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Map.Entry e1 = map.floorEntry(three); |
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assertEquals(three, e1.getKey()); |
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Map.Entry e2 = map.floorEntry(six); |
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assertEquals(five, e2.getKey()); |
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Map.Entry e3 = map.floorEntry(one); |
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assertEquals(one, e3.getKey()); |
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Map.Entry e4 = map.floorEntry(zero); |
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assertNull(e4); |
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} |
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/** |
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* ceilingEntry returns next entry. |
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*/ |
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public void testCeilingEntry() { |
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NavigableMap map = map5(); |
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Map.Entry e1 = map.ceilingEntry(three); |
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assertEquals(three, e1.getKey()); |
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Map.Entry e2 = map.ceilingEntry(zero); |
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assertEquals(one, e2.getKey()); |
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Map.Entry e3 = map.ceilingEntry(five); |
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assertEquals(five, e3.getKey()); |
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Map.Entry e4 = map.ceilingEntry(six); |
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assertNull(e4); |
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} |
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/** |
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* pollFirstEntry returns entries in order |
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*/ |
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public void testPollFirstEntry() { |
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NavigableMap map = map5(); |
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Map.Entry e = map.pollFirstEntry(); |
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assertEquals(one, e.getKey()); |
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assertEquals("A", e.getValue()); |
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e = map.pollFirstEntry(); |
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assertEquals(two, e.getKey()); |
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map.put(one, "A"); |
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e = map.pollFirstEntry(); |
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assertEquals(one, e.getKey()); |
| 300 |
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assertEquals("A", e.getValue()); |
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e = map.pollFirstEntry(); |
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assertEquals(three, e.getKey()); |
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map.remove(four); |
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e = map.pollFirstEntry(); |
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assertEquals(five, e.getKey()); |
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try { |
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e.setValue("A"); |
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shouldThrow(); |
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} catch (Exception ok) { |
| 310 |
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} |
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assertTrue(map.isEmpty()); |
| 312 |
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Map.Entry f = map.firstEntry(); |
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assertNull(f); |
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e = map.pollFirstEntry(); |
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assertNull(e); |
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} |
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/** |
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* pollLastEntry returns entries in order |
| 320 |
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*/ |
| 321 |
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public void testPollLastEntry() { |
| 322 |
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NavigableMap map = map5(); |
| 323 |
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Map.Entry e = map.pollLastEntry(); |
| 324 |
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assertEquals(five, e.getKey()); |
| 325 |
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assertEquals("E", e.getValue()); |
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e = map.pollLastEntry(); |
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assertEquals(four, e.getKey()); |
| 328 |
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map.put(five, "E"); |
| 329 |
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e = map.pollLastEntry(); |
| 330 |
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assertEquals(five, e.getKey()); |
| 331 |
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assertEquals("E", e.getValue()); |
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e = map.pollLastEntry(); |
| 333 |
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assertEquals(three, e.getKey()); |
| 334 |
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map.remove(two); |
| 335 |
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e = map.pollLastEntry(); |
| 336 |
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assertEquals(one, e.getKey()); |
| 337 |
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try { |
| 338 |
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e.setValue("E"); |
| 339 |
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shouldThrow(); |
| 340 |
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} catch (Exception ok) { |
| 341 |
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} |
| 342 |
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e = map.pollLastEntry(); |
| 343 |
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assertNull(e); |
| 344 |
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} |
| 345 |
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| 346 |
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/** |
| 347 |
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* size returns the correct values |
| 348 |
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*/ |
| 349 |
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public void testSize() { |
| 350 |
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NavigableMap map = map5(); |
| 351 |
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NavigableMap empty = map0(); |
| 352 |
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assertEquals(0, empty.size()); |
| 353 |
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assertEquals(5, map.size()); |
| 354 |
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} |
| 355 |
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| 356 |
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/** |
| 357 |
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* toString contains toString of elements |
| 358 |
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*/ |
| 359 |
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public void testToString() { |
| 360 |
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NavigableMap map = map5(); |
| 361 |
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String s = map.toString(); |
| 362 |
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for (int i = 1; i <= 5; ++i) { |
| 363 |
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assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
| 364 |
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} |
| 365 |
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} |
| 366 |
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| 367 |
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// Exception tests |
| 368 |
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| 369 |
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/** |
| 370 |
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* get(null) of nonempty map throws NPE |
| 371 |
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*/ |
| 372 |
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public void testGet_NullPointerException() { |
| 373 |
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try { |
| 374 |
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NavigableMap c = map5(); |
| 375 |
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c.get(null); |
| 376 |
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shouldThrow(); |
| 377 |
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} catch(NullPointerException e){} |
| 378 |
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} |
| 379 |
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| 380 |
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/** |
| 381 |
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* containsKey(null) of nonempty map throws NPE |
| 382 |
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*/ |
| 383 |
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public void testContainsKey_NullPointerException() { |
| 384 |
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try { |
| 385 |
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NavigableMap c = map5(); |
| 386 |
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c.containsKey(null); |
| 387 |
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shouldThrow(); |
| 388 |
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} catch(NullPointerException e){} |
| 389 |
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} |
| 390 |
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| 391 |
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/** |
| 392 |
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* put(null,x) throws NPE |
| 393 |
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*/ |
| 394 |
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public void testPut1_NullPointerException() { |
| 395 |
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try { |
| 396 |
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NavigableMap c = map5(); |
| 397 |
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c.put(null, "whatever"); |
| 398 |
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shouldThrow(); |
| 399 |
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} catch(NullPointerException e){} |
| 400 |
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} |
| 401 |
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|
| 402 |
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/** |
| 403 |
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* remove(null) throws NPE |
| 404 |
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*/ |
| 405 |
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public void testRemove1_NullPointerException() { |
| 406 |
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try { |
| 407 |
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NavigableMap c = map5(); |
| 408 |
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c.remove(null); |
| 409 |
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|
shouldThrow(); |
| 410 |
|
|
} catch(NullPointerException e){} |
| 411 |
|
|
} |
| 412 |
|
|
|
| 413 |
|
|
/** |
| 414 |
|
|
* A deserialized map equals original |
| 415 |
|
|
*/ |
| 416 |
|
|
public void testSerialization() { |
| 417 |
|
|
NavigableMap q = map5(); |
| 418 |
|
|
|
| 419 |
|
|
try { |
| 420 |
|
|
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
| 421 |
|
|
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
| 422 |
|
|
out.writeObject(q); |
| 423 |
|
|
out.close(); |
| 424 |
|
|
|
| 425 |
|
|
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
| 426 |
|
|
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
| 427 |
|
|
NavigableMap r = (NavigableMap)in.readObject(); |
| 428 |
|
|
assertFalse(r.isEmpty()); |
| 429 |
|
|
assertEquals(q.size(), r.size()); |
| 430 |
|
|
assertTrue(q.equals(r)); |
| 431 |
|
|
assertTrue(r.equals(q)); |
| 432 |
|
|
} catch(Exception e){ |
| 433 |
|
|
e.printStackTrace(); |
| 434 |
|
|
unexpectedException(); |
| 435 |
|
|
} |
| 436 |
|
|
} |
| 437 |
|
|
|
| 438 |
|
|
|
| 439 |
|
|
|
| 440 |
|
|
/** |
| 441 |
|
|
* subMap returns map with keys in requested range |
| 442 |
|
|
*/ |
| 443 |
|
|
public void testSubMapContents() { |
| 444 |
|
|
NavigableMap map = map5(); |
| 445 |
|
|
SortedMap sm = map.subMap(two, four); |
| 446 |
|
|
assertEquals(two, sm.firstKey()); |
| 447 |
|
|
assertEquals(three, sm.lastKey()); |
| 448 |
|
|
assertEquals(2, sm.size()); |
| 449 |
|
|
assertFalse(sm.containsKey(one)); |
| 450 |
|
|
assertTrue(sm.containsKey(two)); |
| 451 |
|
|
assertTrue(sm.containsKey(three)); |
| 452 |
|
|
assertFalse(sm.containsKey(four)); |
| 453 |
|
|
assertFalse(sm.containsKey(five)); |
| 454 |
|
|
Iterator i = sm.keySet().iterator(); |
| 455 |
|
|
Object k; |
| 456 |
|
|
k = (Integer)(i.next()); |
| 457 |
|
|
assertEquals(two, k); |
| 458 |
|
|
k = (Integer)(i.next()); |
| 459 |
|
|
assertEquals(three, k); |
| 460 |
|
|
assertFalse(i.hasNext()); |
| 461 |
|
|
Iterator j = sm.keySet().iterator(); |
| 462 |
|
|
j.next(); |
| 463 |
|
|
j.remove(); |
| 464 |
|
|
assertFalse(map.containsKey(two)); |
| 465 |
|
|
assertEquals(4, map.size()); |
| 466 |
|
|
assertEquals(1, sm.size()); |
| 467 |
|
|
assertEquals(three, sm.firstKey()); |
| 468 |
|
|
assertEquals(three, sm.lastKey()); |
| 469 |
|
|
assertTrue(sm.remove(three) != null); |
| 470 |
|
|
assertTrue(sm.isEmpty()); |
| 471 |
|
|
assertEquals(3, map.size()); |
| 472 |
|
|
} |
| 473 |
|
|
|
| 474 |
|
|
public void testSubMapContents2() { |
| 475 |
|
|
NavigableMap map = map5(); |
| 476 |
|
|
SortedMap sm = map.subMap(two, three); |
| 477 |
|
|
assertEquals(1, sm.size()); |
| 478 |
|
|
assertEquals(two, sm.firstKey()); |
| 479 |
|
|
assertEquals(two, sm.lastKey()); |
| 480 |
|
|
assertFalse(sm.containsKey(one)); |
| 481 |
|
|
assertTrue(sm.containsKey(two)); |
| 482 |
|
|
assertFalse(sm.containsKey(three)); |
| 483 |
|
|
assertFalse(sm.containsKey(four)); |
| 484 |
|
|
assertFalse(sm.containsKey(five)); |
| 485 |
|
|
Iterator i = sm.keySet().iterator(); |
| 486 |
|
|
Object k; |
| 487 |
|
|
k = (Integer)(i.next()); |
| 488 |
|
|
assertEquals(two, k); |
| 489 |
|
|
assertFalse(i.hasNext()); |
| 490 |
|
|
Iterator j = sm.keySet().iterator(); |
| 491 |
|
|
j.next(); |
| 492 |
|
|
j.remove(); |
| 493 |
|
|
assertFalse(map.containsKey(two)); |
| 494 |
|
|
assertEquals(4, map.size()); |
| 495 |
|
|
assertEquals(0, sm.size()); |
| 496 |
|
|
assertTrue(sm.isEmpty()); |
| 497 |
|
|
assertTrue(sm.remove(three) == null); |
| 498 |
|
|
assertEquals(4, map.size()); |
| 499 |
|
|
} |
| 500 |
|
|
|
| 501 |
|
|
/** |
| 502 |
|
|
* headMap returns map with keys in requested range |
| 503 |
|
|
*/ |
| 504 |
|
|
public void testHeadMapContents() { |
| 505 |
|
|
NavigableMap map = map5(); |
| 506 |
|
|
SortedMap sm = map.headMap(four); |
| 507 |
|
|
assertTrue(sm.containsKey(one)); |
| 508 |
|
|
assertTrue(sm.containsKey(two)); |
| 509 |
|
|
assertTrue(sm.containsKey(three)); |
| 510 |
|
|
assertFalse(sm.containsKey(four)); |
| 511 |
|
|
assertFalse(sm.containsKey(five)); |
| 512 |
|
|
Iterator i = sm.keySet().iterator(); |
| 513 |
|
|
Object k; |
| 514 |
|
|
k = (Integer)(i.next()); |
| 515 |
|
|
assertEquals(one, k); |
| 516 |
|
|
k = (Integer)(i.next()); |
| 517 |
|
|
assertEquals(two, k); |
| 518 |
|
|
k = (Integer)(i.next()); |
| 519 |
|
|
assertEquals(three, k); |
| 520 |
|
|
assertFalse(i.hasNext()); |
| 521 |
|
|
sm.clear(); |
| 522 |
|
|
assertTrue(sm.isEmpty()); |
| 523 |
|
|
assertEquals(2, map.size()); |
| 524 |
|
|
assertEquals(four, map.firstKey()); |
| 525 |
|
|
} |
| 526 |
|
|
|
| 527 |
|
|
/** |
| 528 |
|
|
* headMap returns map with keys in requested range |
| 529 |
|
|
*/ |
| 530 |
|
|
public void testTailMapContents() { |
| 531 |
|
|
NavigableMap map = map5(); |
| 532 |
|
|
SortedMap sm = map.tailMap(two); |
| 533 |
|
|
assertFalse(sm.containsKey(one)); |
| 534 |
|
|
assertTrue(sm.containsKey(two)); |
| 535 |
|
|
assertTrue(sm.containsKey(three)); |
| 536 |
|
|
assertTrue(sm.containsKey(four)); |
| 537 |
|
|
assertTrue(sm.containsKey(five)); |
| 538 |
|
|
Iterator i = sm.keySet().iterator(); |
| 539 |
|
|
Object k; |
| 540 |
|
|
k = (Integer)(i.next()); |
| 541 |
|
|
assertEquals(two, k); |
| 542 |
|
|
k = (Integer)(i.next()); |
| 543 |
|
|
assertEquals(three, k); |
| 544 |
|
|
k = (Integer)(i.next()); |
| 545 |
|
|
assertEquals(four, k); |
| 546 |
|
|
k = (Integer)(i.next()); |
| 547 |
|
|
assertEquals(five, k); |
| 548 |
|
|
assertFalse(i.hasNext()); |
| 549 |
|
|
|
| 550 |
|
|
Iterator ei = sm.entrySet().iterator(); |
| 551 |
|
|
Map.Entry e; |
| 552 |
|
|
e = (Map.Entry)(ei.next()); |
| 553 |
|
|
assertEquals(two, e.getKey()); |
| 554 |
|
|
assertEquals("B", e.getValue()); |
| 555 |
|
|
e = (Map.Entry)(ei.next()); |
| 556 |
|
|
assertEquals(three, e.getKey()); |
| 557 |
|
|
assertEquals("C", e.getValue()); |
| 558 |
|
|
e = (Map.Entry)(ei.next()); |
| 559 |
|
|
assertEquals(four, e.getKey()); |
| 560 |
|
|
assertEquals("D", e.getValue()); |
| 561 |
|
|
e = (Map.Entry)(ei.next()); |
| 562 |
|
|
assertEquals(five, e.getKey()); |
| 563 |
|
|
assertEquals("E", e.getValue()); |
| 564 |
|
|
assertFalse(i.hasNext()); |
| 565 |
|
|
|
| 566 |
|
|
SortedMap ssm = sm.tailMap(four); |
| 567 |
|
|
assertEquals(four, ssm.firstKey()); |
| 568 |
|
|
assertEquals(five, ssm.lastKey()); |
| 569 |
|
|
assertTrue(ssm.remove(four) != null); |
| 570 |
|
|
assertEquals(1, ssm.size()); |
| 571 |
|
|
assertEquals(3, sm.size()); |
| 572 |
|
|
assertEquals(4, map.size()); |
| 573 |
|
|
} |
| 574 |
|
|
|
| 575 |
|
|
} |
