/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* This file is available under and governed by the GNU General Public
* License version 2 only, as published by the Free Software Foundation.
* However, the following notice accompanied the original version of this
* file:
*
* Written by Doug Lea with assistance from members of JCP JSR-166
* Expert Group and released to the public domain, as explained at
* http://creativecommons.org/publicdomain/zero/1.0/
*/
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Iterator;
import java.util.Map;
import java.util.NavigableMap;
import java.util.Set;
import java.util.SortedMap;
import java.util.TreeMap;
import junit.framework.Test;
import junit.framework.TestSuite;
public class TreeSubMapTest extends JSR166TestCase {
public static void main(String[] args) {
main(suite(), args);
}
public static Test suite() {
return new TestSuite(TreeSubMapTest.class);
}
/**
* Returns a new map from Integers 1-5 to Strings "A"-"E".
*/
private static NavigableMap map5() {
TreeMap map = new TreeMap();
assertTrue(map.isEmpty());
map.put(zero, "Z");
map.put(one, "A");
map.put(five, "E");
map.put(three, "C");
map.put(two, "B");
map.put(four, "D");
map.put(seven, "F");
assertFalse(map.isEmpty());
assertEquals(7, map.size());
return map.subMap(one, true, seven, false);
}
private static NavigableMap map0() {
TreeMap map = new TreeMap();
assertTrue(map.isEmpty());
return map.tailMap(one, true);
}
/**
* Returns a new map from Integers -5 to -1 to Strings "A"-"E".
*/
private static NavigableMap dmap5() {
TreeMap map = new TreeMap();
assertTrue(map.isEmpty());
map.put(m1, "A");
map.put(m5, "E");
map.put(m3, "C");
map.put(m2, "B");
map.put(m4, "D");
assertFalse(map.isEmpty());
assertEquals(5, map.size());
return map.descendingMap();
}
private static NavigableMap dmap0() {
TreeMap map = new TreeMap();
assertTrue(map.isEmpty());
return map;
}
/**
* clear removes all pairs
*/
public void testClear() {
NavigableMap map = map5();
map.clear();
assertEquals(0, map.size());
}
/**
* Maps with same contents are equal
*/
public void testEquals() {
NavigableMap map1 = map5();
NavigableMap map2 = map5();
assertEquals(map1, map2);
assertEquals(map2, map1);
map1.clear();
assertFalse(map1.equals(map2));
assertFalse(map2.equals(map1));
}
/**
* containsKey returns true for contained key
*/
public void testContainsKey() {
NavigableMap map = map5();
assertTrue(map.containsKey(one));
assertFalse(map.containsKey(zero));
}
/**
* containsValue returns true for held values
*/
public void testContainsValue() {
NavigableMap map = map5();
assertTrue(map.containsValue("A"));
assertFalse(map.containsValue("Z"));
}
/**
* get returns the correct element at the given key,
* or null if not present
*/
public void testGet() {
NavigableMap map = map5();
assertEquals("A", (String)map.get(one));
NavigableMap empty = map0();
assertNull(empty.get(one));
}
/**
* isEmpty is true of empty map and false for non-empty
*/
public void testIsEmpty() {
NavigableMap empty = map0();
NavigableMap map = map5();
assertTrue(empty.isEmpty());
assertFalse(map.isEmpty());
}
/**
* firstKey returns first key
*/
public void testFirstKey() {
NavigableMap map = map5();
assertEquals(one, map.firstKey());
}
/**
* lastKey returns last key
*/
public void testLastKey() {
NavigableMap map = map5();
assertEquals(five, map.lastKey());
}
/**
* keySet returns a Set containing all the keys
*/
public void testKeySet() {
NavigableMap map = map5();
Set s = map.keySet();
assertEquals(5, s.size());
assertTrue(s.contains(one));
assertTrue(s.contains(two));
assertTrue(s.contains(three));
assertTrue(s.contains(four));
assertTrue(s.contains(five));
}
/**
* keySet is ordered
*/
public void testKeySetOrder() {
NavigableMap map = map5();
Set s = map.keySet();
Iterator i = s.iterator();
Integer last = (Integer)i.next();
assertEquals(last, one);
while (i.hasNext()) {
Integer k = (Integer)i.next();
assertTrue(last.compareTo(k) < 0);
last = k;
}
}
/**
* values collection contains all values
*/
public void testValues() {
NavigableMap map = map5();
Collection s = map.values();
assertEquals(5, s.size());
assertTrue(s.contains("A"));
assertTrue(s.contains("B"));
assertTrue(s.contains("C"));
assertTrue(s.contains("D"));
assertTrue(s.contains("E"));
}
/**
* entrySet contains all pairs
*/
public void testEntrySet() {
NavigableMap map = map5();
Set s = map.entrySet();
assertEquals(5, s.size());
Iterator it = s.iterator();
while (it.hasNext()) {
Map.Entry e = (Map.Entry) it.next();
assertTrue(
(e.getKey().equals(one) && e.getValue().equals("A")) ||
(e.getKey().equals(two) && e.getValue().equals("B")) ||
(e.getKey().equals(three) && e.getValue().equals("C")) ||
(e.getKey().equals(four) && e.getValue().equals("D")) ||
(e.getKey().equals(five) && e.getValue().equals("E")));
}
}
/**
* putAll adds all key-value pairs from the given map
*/
public void testPutAll() {
NavigableMap empty = map0();
NavigableMap map = map5();
empty.putAll(map);
assertEquals(5, empty.size());
assertTrue(empty.containsKey(one));
assertTrue(empty.containsKey(two));
assertTrue(empty.containsKey(three));
assertTrue(empty.containsKey(four));
assertTrue(empty.containsKey(five));
}
/**
* remove removes the correct key-value pair from the map
*/
public void testRemove() {
NavigableMap map = map5();
map.remove(five);
assertEquals(4, map.size());
assertFalse(map.containsKey(five));
}
/**
* lowerEntry returns preceding entry.
*/
public void testLowerEntry() {
NavigableMap map = map5();
Map.Entry e1 = map.lowerEntry(three);
assertEquals(two, e1.getKey());
Map.Entry e2 = map.lowerEntry(six);
assertEquals(five, e2.getKey());
Map.Entry e3 = map.lowerEntry(one);
assertNull(e3);
Map.Entry e4 = map.lowerEntry(zero);
assertNull(e4);
}
/**
* higherEntry returns next entry.
*/
public void testHigherEntry() {
NavigableMap map = map5();
Map.Entry e1 = map.higherEntry(three);
assertEquals(four, e1.getKey());
Map.Entry e2 = map.higherEntry(zero);
assertEquals(one, e2.getKey());
Map.Entry e3 = map.higherEntry(five);
assertNull(e3);
Map.Entry e4 = map.higherEntry(six);
assertNull(e4);
}
/**
* floorEntry returns preceding entry.
*/
public void testFloorEntry() {
NavigableMap map = map5();
Map.Entry e1 = map.floorEntry(three);
assertEquals(three, e1.getKey());
Map.Entry e2 = map.floorEntry(six);
assertEquals(five, e2.getKey());
Map.Entry e3 = map.floorEntry(one);
assertEquals(one, e3.getKey());
Map.Entry e4 = map.floorEntry(zero);
assertNull(e4);
}
/**
* ceilingEntry returns next entry.
*/
public void testCeilingEntry() {
NavigableMap map = map5();
Map.Entry e1 = map.ceilingEntry(three);
assertEquals(three, e1.getKey());
Map.Entry e2 = map.ceilingEntry(zero);
assertEquals(one, e2.getKey());
Map.Entry e3 = map.ceilingEntry(five);
assertEquals(five, e3.getKey());
Map.Entry e4 = map.ceilingEntry(six);
assertNull(e4);
}
/**
* pollFirstEntry returns entries in order
*/
public void testPollFirstEntry() {
NavigableMap map = map5();
Map.Entry e = map.pollFirstEntry();
assertEquals(one, e.getKey());
assertEquals("A", e.getValue());
e = map.pollFirstEntry();
assertEquals(two, e.getKey());
map.put(one, "A");
e = map.pollFirstEntry();
assertEquals(one, e.getKey());
assertEquals("A", e.getValue());
e = map.pollFirstEntry();
assertEquals(three, e.getKey());
map.remove(four);
e = map.pollFirstEntry();
assertEquals(five, e.getKey());
try {
e.setValue("A");
shouldThrow();
} catch (UnsupportedOperationException success) {}
assertTrue(map.isEmpty());
Map.Entry f = map.firstEntry();
assertNull(f);
e = map.pollFirstEntry();
assertNull(e);
}
/**
* pollLastEntry returns entries in order
*/
public void testPollLastEntry() {
NavigableMap map = map5();
Map.Entry e = map.pollLastEntry();
assertEquals(five, e.getKey());
assertEquals("E", e.getValue());
e = map.pollLastEntry();
assertEquals(four, e.getKey());
map.put(five, "E");
e = map.pollLastEntry();
assertEquals(five, e.getKey());
assertEquals("E", e.getValue());
e = map.pollLastEntry();
assertEquals(three, e.getKey());
map.remove(two);
e = map.pollLastEntry();
assertEquals(one, e.getKey());
try {
e.setValue("E");
shouldThrow();
} catch (UnsupportedOperationException success) {}
e = map.pollLastEntry();
assertNull(e);
}
/**
* size returns the correct values
*/
public void testSize() {
NavigableMap map = map5();
NavigableMap empty = map0();
assertEquals(0, empty.size());
assertEquals(5, map.size());
}
/**
* toString contains toString of elements
*/
public void testToString() {
NavigableMap map = map5();
String s = map.toString();
for (int i = 1; i <= 5; ++i) {
assertTrue(s.contains(String.valueOf(i)));
}
}
// Exception tests
/**
* get(null) of nonempty map throws NPE
*/
public void testGet_NullPointerException() {
NavigableMap c = map5();
try {
c.get(null);
shouldThrow();
} catch (NullPointerException success) {}
}
/**
* containsKey(null) of nonempty map throws NPE
*/
public void testContainsKey_NullPointerException() {
NavigableMap c = map5();
try {
c.containsKey(null);
shouldThrow();
} catch (NullPointerException success) {}
}
/**
* put(null,x) throws NPE
*/
public void testPut1_NullPointerException() {
NavigableMap c = map5();
try {
c.put(null, "whatever");
shouldThrow();
} catch (NullPointerException success) {}
}
/**
* remove(null) throws NPE
*/
public void testRemove1_NullPointerException() {
NavigableMap c = map5();
try {
c.remove(null);
shouldThrow();
} catch (NullPointerException success) {}
}
/**
* A deserialized map equals original
*/
public void testSerialization() throws Exception {
NavigableMap x = map5();
NavigableMap y = serialClone(x);
assertNotSame(x, y);
assertEquals(x.size(), y.size());
assertEquals(x.toString(), y.toString());
assertEquals(x, y);
assertEquals(y, x);
}
/**
* subMap returns map with keys in requested range
*/
public void testSubMapContents() {
NavigableMap map = map5();
SortedMap sm = map.subMap(two, four);
assertEquals(two, sm.firstKey());
assertEquals(three, sm.lastKey());
assertEquals(2, sm.size());
assertFalse(sm.containsKey(one));
assertTrue(sm.containsKey(two));
assertTrue(sm.containsKey(three));
assertFalse(sm.containsKey(four));
assertFalse(sm.containsKey(five));
Iterator i = sm.keySet().iterator();
Object k;
k = (Integer)(i.next());
assertEquals(two, k);
k = (Integer)(i.next());
assertEquals(three, k);
assertFalse(i.hasNext());
Iterator j = sm.keySet().iterator();
j.next();
j.remove();
assertFalse(map.containsKey(two));
assertEquals(4, map.size());
assertEquals(1, sm.size());
assertEquals(three, sm.firstKey());
assertEquals(three, sm.lastKey());
assertEquals("C", sm.remove(three));
assertTrue(sm.isEmpty());
assertEquals(3, map.size());
}
public void testSubMapContents2() {
NavigableMap map = map5();
SortedMap sm = map.subMap(two, three);
assertEquals(1, sm.size());
assertEquals(two, sm.firstKey());
assertEquals(two, sm.lastKey());
assertFalse(sm.containsKey(one));
assertTrue(sm.containsKey(two));
assertFalse(sm.containsKey(three));
assertFalse(sm.containsKey(four));
assertFalse(sm.containsKey(five));
Iterator i = sm.keySet().iterator();
Object k;
k = (Integer)(i.next());
assertEquals(two, k);
assertFalse(i.hasNext());
Iterator j = sm.keySet().iterator();
j.next();
j.remove();
assertFalse(map.containsKey(two));
assertEquals(4, map.size());
assertEquals(0, sm.size());
assertTrue(sm.isEmpty());
assertSame(sm.remove(three), null);
assertEquals(4, map.size());
}
/**
* headMap returns map with keys in requested range
*/
public void testHeadMapContents() {
NavigableMap map = map5();
SortedMap sm = map.headMap(four);
assertTrue(sm.containsKey(one));
assertTrue(sm.containsKey(two));
assertTrue(sm.containsKey(three));
assertFalse(sm.containsKey(four));
assertFalse(sm.containsKey(five));
Iterator i = sm.keySet().iterator();
Object k;
k = (Integer)(i.next());
assertEquals(one, k);
k = (Integer)(i.next());
assertEquals(two, k);
k = (Integer)(i.next());
assertEquals(three, k);
assertFalse(i.hasNext());
sm.clear();
assertTrue(sm.isEmpty());
assertEquals(2, map.size());
assertEquals(four, map.firstKey());
}
/**
* headMap returns map with keys in requested range
*/
public void testTailMapContents() {
NavigableMap map = map5();
SortedMap sm = map.tailMap(two);
assertFalse(sm.containsKey(one));
assertTrue(sm.containsKey(two));
assertTrue(sm.containsKey(three));
assertTrue(sm.containsKey(four));
assertTrue(sm.containsKey(five));
Iterator i = sm.keySet().iterator();
Object k;
k = (Integer)(i.next());
assertEquals(two, k);
k = (Integer)(i.next());
assertEquals(three, k);
k = (Integer)(i.next());
assertEquals(four, k);
k = (Integer)(i.next());
assertEquals(five, k);
assertFalse(i.hasNext());
Iterator ei = sm.entrySet().iterator();
Map.Entry e;
e = (Map.Entry)(ei.next());
assertEquals(two, e.getKey());
assertEquals("B", e.getValue());
e = (Map.Entry)(ei.next());
assertEquals(three, e.getKey());
assertEquals("C", e.getValue());
e = (Map.Entry)(ei.next());
assertEquals(four, e.getKey());
assertEquals("D", e.getValue());
e = (Map.Entry)(ei.next());
assertEquals(five, e.getKey());
assertEquals("E", e.getValue());
assertFalse(i.hasNext());
SortedMap ssm = sm.tailMap(four);
assertEquals(four, ssm.firstKey());
assertEquals(five, ssm.lastKey());
assertEquals("D", ssm.remove(four));
assertEquals(1, ssm.size());
assertEquals(3, sm.size());
assertEquals(4, map.size());
}
/**
* clear removes all pairs
*/
public void testDescendingClear() {
NavigableMap map = dmap5();
map.clear();
assertEquals(0, map.size());
}
/**
* Maps with same contents are equal
*/
public void testDescendingEquals() {
NavigableMap map1 = dmap5();
NavigableMap map2 = dmap5();
assertEquals(map1, map2);
assertEquals(map2, map1);
map1.clear();
assertFalse(map1.equals(map2));
assertFalse(map2.equals(map1));
}
/**
* containsKey returns true for contained key
*/
public void testDescendingContainsKey() {
NavigableMap map = dmap5();
assertTrue(map.containsKey(m1));
assertFalse(map.containsKey(zero));
}
/**
* containsValue returns true for held values
*/
public void testDescendingContainsValue() {
NavigableMap map = dmap5();
assertTrue(map.containsValue("A"));
assertFalse(map.containsValue("Z"));
}
/**
* get returns the correct element at the given key,
* or null if not present
*/
public void testDescendingGet() {
NavigableMap map = dmap5();
assertEquals("A", (String)map.get(m1));
NavigableMap empty = dmap0();
assertNull(empty.get(m1));
}
/**
* isEmpty is true of empty map and false for non-empty
*/
public void testDescendingIsEmpty() {
NavigableMap empty = dmap0();
NavigableMap map = dmap5();
assertTrue(empty.isEmpty());
assertFalse(map.isEmpty());
}
/**
* firstKey returns first key
*/
public void testDescendingFirstKey() {
NavigableMap map = dmap5();
assertEquals(m1, map.firstKey());
}
/**
* lastKey returns last key
*/
public void testDescendingLastKey() {
NavigableMap map = dmap5();
assertEquals(m5, map.lastKey());
}
/**
* keySet returns a Set containing all the keys
*/
public void testDescendingKeySet() {
NavigableMap map = dmap5();
Set s = map.keySet();
assertEquals(5, s.size());
assertTrue(s.contains(m1));
assertTrue(s.contains(m2));
assertTrue(s.contains(m3));
assertTrue(s.contains(m4));
assertTrue(s.contains(m5));
}
/**
* keySet is ordered
*/
public void testDescendingKeySetOrder() {
NavigableMap map = dmap5();
Set s = map.keySet();
Iterator i = s.iterator();
Integer last = (Integer)i.next();
assertEquals(last, m1);
while (i.hasNext()) {
Integer k = (Integer)i.next();
assertTrue(last.compareTo(k) > 0);
last = k;
}
}
/**
* values collection contains all values
*/
public void testDescendingValues() {
NavigableMap map = dmap5();
Collection s = map.values();
assertEquals(5, s.size());
assertTrue(s.contains("A"));
assertTrue(s.contains("B"));
assertTrue(s.contains("C"));
assertTrue(s.contains("D"));
assertTrue(s.contains("E"));
}
/**
* keySet.toArray returns contains all keys
*/
public void testDescendingAscendingKeySetToArray() {
NavigableMap map = dmap5();
Set s = map.keySet();
Object[] ar = s.toArray();
assertTrue(s.containsAll(Arrays.asList(ar)));
assertEquals(5, ar.length);
ar[0] = m10;
assertFalse(s.containsAll(Arrays.asList(ar)));
}
/**
* descendingkeySet.toArray returns contains all keys
*/
public void testDescendingDescendingKeySetToArray() {
NavigableMap map = dmap5();
Set s = map.descendingKeySet();
Object[] ar = s.toArray();
assertEquals(5, ar.length);
assertTrue(s.containsAll(Arrays.asList(ar)));
ar[0] = m10;
assertFalse(s.containsAll(Arrays.asList(ar)));
}
/**
* Values.toArray contains all values
*/
public void testDescendingValuesToArray() {
NavigableMap map = dmap5();
Collection v = map.values();
Object[] ar = v.toArray();
ArrayList s = new ArrayList(Arrays.asList(ar));
assertEquals(5, ar.length);
assertTrue(s.contains("A"));
assertTrue(s.contains("B"));
assertTrue(s.contains("C"));
assertTrue(s.contains("D"));
assertTrue(s.contains("E"));
}
/**
* entrySet contains all pairs
*/
public void testDescendingEntrySet() {
NavigableMap map = dmap5();
Set s = map.entrySet();
assertEquals(5, s.size());
Iterator it = s.iterator();
while (it.hasNext()) {
Map.Entry e = (Map.Entry) it.next();
assertTrue(
(e.getKey().equals(m1) && e.getValue().equals("A")) ||
(e.getKey().equals(m2) && e.getValue().equals("B")) ||
(e.getKey().equals(m3) && e.getValue().equals("C")) ||
(e.getKey().equals(m4) && e.getValue().equals("D")) ||
(e.getKey().equals(m5) && e.getValue().equals("E")));
}
}
/**
* putAll adds all key-value pairs from the given map
*/
public void testDescendingPutAll() {
NavigableMap empty = dmap0();
NavigableMap map = dmap5();
empty.putAll(map);
assertEquals(5, empty.size());
assertTrue(empty.containsKey(m1));
assertTrue(empty.containsKey(m2));
assertTrue(empty.containsKey(m3));
assertTrue(empty.containsKey(m4));
assertTrue(empty.containsKey(m5));
}
/**
* remove removes the correct key-value pair from the map
*/
public void testDescendingRemove() {
NavigableMap map = dmap5();
map.remove(m5);
assertEquals(4, map.size());
assertFalse(map.containsKey(m5));
}
/**
* lowerEntry returns preceding entry.
*/
public void testDescendingLowerEntry() {
NavigableMap map = dmap5();
Map.Entry e1 = map.lowerEntry(m3);
assertEquals(m2, e1.getKey());
Map.Entry e2 = map.lowerEntry(m6);
assertEquals(m5, e2.getKey());
Map.Entry e3 = map.lowerEntry(m1);
assertNull(e3);
Map.Entry e4 = map.lowerEntry(zero);
assertNull(e4);
}
/**
* higherEntry returns next entry.
*/
public void testDescendingHigherEntry() {
NavigableMap map = dmap5();
Map.Entry e1 = map.higherEntry(m3);
assertEquals(m4, e1.getKey());
Map.Entry e2 = map.higherEntry(zero);
assertEquals(m1, e2.getKey());
Map.Entry e3 = map.higherEntry(m5);
assertNull(e3);
Map.Entry e4 = map.higherEntry(m6);
assertNull(e4);
}
/**
* floorEntry returns preceding entry.
*/
public void testDescendingFloorEntry() {
NavigableMap map = dmap5();
Map.Entry e1 = map.floorEntry(m3);
assertEquals(m3, e1.getKey());
Map.Entry e2 = map.floorEntry(m6);
assertEquals(m5, e2.getKey());
Map.Entry e3 = map.floorEntry(m1);
assertEquals(m1, e3.getKey());
Map.Entry e4 = map.floorEntry(zero);
assertNull(e4);
}
/**
* ceilingEntry returns next entry.
*/
public void testDescendingCeilingEntry() {
NavigableMap map = dmap5();
Map.Entry e1 = map.ceilingEntry(m3);
assertEquals(m3, e1.getKey());
Map.Entry e2 = map.ceilingEntry(zero);
assertEquals(m1, e2.getKey());
Map.Entry e3 = map.ceilingEntry(m5);
assertEquals(m5, e3.getKey());
Map.Entry e4 = map.ceilingEntry(m6);
assertNull(e4);
}
/**
* pollFirstEntry returns entries in order
*/
public void testDescendingPollFirstEntry() {
NavigableMap map = dmap5();
Map.Entry e = map.pollFirstEntry();
assertEquals(m1, e.getKey());
assertEquals("A", e.getValue());
e = map.pollFirstEntry();
assertEquals(m2, e.getKey());
map.put(m1, "A");
e = map.pollFirstEntry();
assertEquals(m1, e.getKey());
assertEquals("A", e.getValue());
e = map.pollFirstEntry();
assertEquals(m3, e.getKey());
map.remove(m4);
e = map.pollFirstEntry();
assertEquals(m5, e.getKey());
try {
e.setValue("A");
shouldThrow();
} catch (UnsupportedOperationException success) {}
e = map.pollFirstEntry();
assertNull(e);
}
/**
* pollLastEntry returns entries in order
*/
public void testDescendingPollLastEntry() {
NavigableMap map = dmap5();
Map.Entry e = map.pollLastEntry();
assertEquals(m5, e.getKey());
assertEquals("E", e.getValue());
e = map.pollLastEntry();
assertEquals(m4, e.getKey());
map.put(m5, "E");
e = map.pollLastEntry();
assertEquals(m5, e.getKey());
assertEquals("E", e.getValue());
e = map.pollLastEntry();
assertEquals(m3, e.getKey());
map.remove(m2);
e = map.pollLastEntry();
assertEquals(m1, e.getKey());
try {
e.setValue("E");
shouldThrow();
} catch (UnsupportedOperationException success) {}
e = map.pollLastEntry();
assertNull(e);
}
/**
* size returns the correct values
*/
public void testDescendingSize() {
NavigableMap map = dmap5();
NavigableMap empty = dmap0();
assertEquals(0, empty.size());
assertEquals(5, map.size());
}
/**
* toString contains toString of elements
*/
public void testDescendingToString() {
NavigableMap map = dmap5();
String s = map.toString();
for (int i = 1; i <= 5; ++i) {
assertTrue(s.contains(String.valueOf(i)));
}
}
// Exception testDescendings
/**
* get(null) of nonempty map throws NPE
*/
public void testDescendingGet_NullPointerException() {
NavigableMap c = dmap5();
try {
c.get(null);
shouldThrow();
} catch (NullPointerException success) {}
}
/**
* put(null,x) throws NPE
*/
public void testDescendingPut1_NullPointerException() {
NavigableMap c = dmap5();
try {
c.put(null, "whatever");
shouldThrow();
} catch (NullPointerException success) {}
}
/**
* A deserialized map equals original
*/
public void testDescendingSerialization() throws Exception {
NavigableMap x = dmap5();
NavigableMap y = serialClone(x);
assertNotSame(x, y);
assertEquals(x.size(), y.size());
assertEquals(x.toString(), y.toString());
assertEquals(x, y);
assertEquals(y, x);
}
/**
* subMap returns map with keys in requested range
*/
public void testDescendingSubMapContents() {
NavigableMap map = dmap5();
SortedMap sm = map.subMap(m2, m4);
assertEquals(m2, sm.firstKey());
assertEquals(m3, sm.lastKey());
assertEquals(2, sm.size());
assertFalse(sm.containsKey(m1));
assertTrue(sm.containsKey(m2));
assertTrue(sm.containsKey(m3));
assertFalse(sm.containsKey(m4));
assertFalse(sm.containsKey(m5));
Iterator i = sm.keySet().iterator();
Object k;
k = (Integer)(i.next());
assertEquals(m2, k);
k = (Integer)(i.next());
assertEquals(m3, k);
assertFalse(i.hasNext());
Iterator j = sm.keySet().iterator();
j.next();
j.remove();
assertFalse(map.containsKey(m2));
assertEquals(4, map.size());
assertEquals(1, sm.size());
assertEquals(m3, sm.firstKey());
assertEquals(m3, sm.lastKey());
assertEquals("C", sm.remove(m3));
assertTrue(sm.isEmpty());
assertEquals(3, map.size());
}
public void testDescendingSubMapContents2() {
NavigableMap map = dmap5();
SortedMap sm = map.subMap(m2, m3);
assertEquals(1, sm.size());
assertEquals(m2, sm.firstKey());
assertEquals(m2, sm.lastKey());
assertFalse(sm.containsKey(m1));
assertTrue(sm.containsKey(m2));
assertFalse(sm.containsKey(m3));
assertFalse(sm.containsKey(m4));
assertFalse(sm.containsKey(m5));
Iterator i = sm.keySet().iterator();
Object k;
k = (Integer)(i.next());
assertEquals(m2, k);
assertFalse(i.hasNext());
Iterator j = sm.keySet().iterator();
j.next();
j.remove();
assertFalse(map.containsKey(m2));
assertEquals(4, map.size());
assertEquals(0, sm.size());
assertTrue(sm.isEmpty());
assertSame(sm.remove(m3), null);
assertEquals(4, map.size());
}
/**
* headMap returns map with keys in requested range
*/
public void testDescendingHeadMapContents() {
NavigableMap map = dmap5();
SortedMap sm = map.headMap(m4);
assertTrue(sm.containsKey(m1));
assertTrue(sm.containsKey(m2));
assertTrue(sm.containsKey(m3));
assertFalse(sm.containsKey(m4));
assertFalse(sm.containsKey(m5));
Iterator i = sm.keySet().iterator();
Object k;
k = (Integer)(i.next());
assertEquals(m1, k);
k = (Integer)(i.next());
assertEquals(m2, k);
k = (Integer)(i.next());
assertEquals(m3, k);
assertFalse(i.hasNext());
sm.clear();
assertTrue(sm.isEmpty());
assertEquals(2, map.size());
assertEquals(m4, map.firstKey());
}
/**
* headMap returns map with keys in requested range
*/
public void testDescendingTailMapContents() {
NavigableMap map = dmap5();
SortedMap sm = map.tailMap(m2);
assertFalse(sm.containsKey(m1));
assertTrue(sm.containsKey(m2));
assertTrue(sm.containsKey(m3));
assertTrue(sm.containsKey(m4));
assertTrue(sm.containsKey(m5));
Iterator i = sm.keySet().iterator();
Object k;
k = (Integer)(i.next());
assertEquals(m2, k);
k = (Integer)(i.next());
assertEquals(m3, k);
k = (Integer)(i.next());
assertEquals(m4, k);
k = (Integer)(i.next());
assertEquals(m5, k);
assertFalse(i.hasNext());
Iterator ei = sm.entrySet().iterator();
Map.Entry e;
e = (Map.Entry)(ei.next());
assertEquals(m2, e.getKey());
assertEquals("B", e.getValue());
e = (Map.Entry)(ei.next());
assertEquals(m3, e.getKey());
assertEquals("C", e.getValue());
e = (Map.Entry)(ei.next());
assertEquals(m4, e.getKey());
assertEquals("D", e.getValue());
e = (Map.Entry)(ei.next());
assertEquals(m5, e.getKey());
assertEquals("E", e.getValue());
assertFalse(i.hasNext());
SortedMap ssm = sm.tailMap(m4);
assertEquals(m4, ssm.firstKey());
assertEquals(m5, ssm.lastKey());
assertEquals("D", ssm.remove(m4));
assertEquals(1, ssm.size());
assertEquals(3, sm.size());
assertEquals(4, map.size());
}
}