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1274 lines (1149 loc) · 38.8 KB
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package org.mapdb;/*
/*
* 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 junit.framework.Test;
import junit.framework.TestSuite;
import java.util.*;
import java.util.concurrent.ConcurrentNavigableMap;
@SuppressWarnings({"rawtypes","unchecked"})
public class BTreeMapTest6 extends JSR166TestCase {
public static void main(String[] args) {
junit.textui.TestRunner.run(suite());
}
public static Test suite() {
return new TestSuite(BTreeMapTest6.class);
}
/**
* Returns a new map from Integers 1-5 to Strings "A"-"E".
*/
private static ConcurrentNavigableMap map5() {
ConcurrentNavigableMap map = DBMaker.newMemoryDB().make().createTreeMap("test").make();
assertTrue(map.isEmpty());
map.put(one, "A");
map.put(five, "E");
map.put(three, "C");
map.put(two, "B");
map.put(four, "D");
assertFalse(map.isEmpty());
assertEquals(5, map.size());
return map;
}
/**
* clear removes all pairs
*/
public void testClear() {
ConcurrentNavigableMap map = map5();
map.clear();
assertEquals(0, map.size());
}
// /**
// * copy constructor creates map equal to source map
// */
// public void testConstructFromSorted() {
// ConcurrentNavigableMap map = map5();
// ConcurrentNavigableMap map2 = new ConcurrentSkipListMap(map);
// assertEquals(map, map2);
// }
/**
* Maps with same contents are equal
*/
public void testEquals() {
ConcurrentNavigableMap map1 = map5();
ConcurrentNavigableMap 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() {
ConcurrentNavigableMap map = map5();
assertTrue(map.containsKey(one));
assertFalse(map.containsKey(zero));
}
/**
* containsValue returns true for held values
*/
public void testContainsValue() {
ConcurrentNavigableMap 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() {
ConcurrentNavigableMap map = map5();
assertEquals("A", (String)map.get(one));
ConcurrentNavigableMap empty = DBMaker.newMemoryDB().make().createTreeMap("test").make();
assertNull(empty.get(one));
}
/**
* isEmpty is true of empty map and false for non-empty
*/
public void testIsEmpty() {
ConcurrentNavigableMap empty = DBMaker.newMemoryDB().make().createTreeMap("test").make();
ConcurrentNavigableMap map = map5();
assertTrue(empty.isEmpty());
assertFalse(map.isEmpty());
}
/**
* firstKey returns first key
*/
public void testFirstKey() {
ConcurrentNavigableMap map = map5();
assertEquals(one, map.firstKey());
}
/**
* lastKey returns last key
*/
public void testLastKey() {
ConcurrentNavigableMap map = map5();
assertEquals(five, map.lastKey());
}
/**
* keySet.toArray returns contains all keys
*/
public void testKeySetToArray() {
ConcurrentNavigableMap map = map5();
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 testDescendingKeySetToArray() {
ConcurrentNavigableMap map = map5();
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)));
}
/**
* keySet returns a Set containing all the keys
*/
public void testKeySet() {
ConcurrentNavigableMap 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() {
ConcurrentNavigableMap map = map5();
Set s = map.keySet();
Iterator i = s.iterator();
Integer last = (Integer)i.next();
assertEquals(last, one);
int count = 1;
while (i.hasNext()) {
Integer k = (Integer)i.next();
assertTrue(last.compareTo(k) < 0);
last = k;
++count;
}
assertEquals(5, count);
}
/**
* descending iterator of key set is inverse ordered
*/
public void testKeySetDescendingIteratorOrder() {
ConcurrentNavigableMap map = map5();
NavigableSet s = map.navigableKeySet();
Iterator i = s.descendingIterator();
Integer last = (Integer)i.next();
assertEquals(last, five);
int count = 1;
while (i.hasNext()) {
Integer k = (Integer)i.next();
assertTrue(last.compareTo(k) > 0);
last = k;
++count;
}
assertEquals(5, count);
}
/**
* descendingKeySet is ordered
*/
public void testDescendingKeySetOrder() {
ConcurrentNavigableMap map = map5();
Set s = map.descendingKeySet();
Iterator i = s.iterator();
Integer last = (Integer)i.next();
assertEquals(last, five);
int count = 1;
while (i.hasNext()) {
Integer k = (Integer)i.next();
assertTrue(last.compareTo(k) > 0);
last = k;
++count;
}
assertEquals(5, count);
}
/**
* descending iterator of descendingKeySet is ordered
*/
public void testDescendingKeySetDescendingIteratorOrder() {
ConcurrentNavigableMap map = map5();
NavigableSet s = map.descendingKeySet();
Iterator i = s.descendingIterator();
Integer last = (Integer)i.next();
assertEquals(last, one);
int count = 1;
while (i.hasNext()) {
Integer k = (Integer)i.next();
assertTrue(last.compareTo(k) < 0);
last = k;
++count;
}
assertEquals(5, count);
}
/**
* Values.toArray contains all values
*/
public void testValuesToArray() {
ConcurrentNavigableMap map = map5();
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"));
}
/**
* values collection contains all values
*/
public void testValues() {
ConcurrentNavigableMap 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() {
ConcurrentNavigableMap 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")));
}
}
/**
* descendingEntrySet contains all pairs
*/
public void testDescendingEntrySet() {
ConcurrentNavigableMap map = map5();
Set s = map.descendingMap().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")));
}
}
/**
* entrySet.toArray contains all entries
*/
public void testEntrySetToArray() {
ConcurrentNavigableMap map = map5();
Set s = map.entrySet();
Object[] ar = s.toArray();
assertEquals(5, ar.length);
for (int i = 0; i < 5; ++i) {
assertTrue(map.containsKey(((Map.Entry)(ar[i])).getKey()));
assertTrue(map.containsValue(((Map.Entry)(ar[i])).getValue()));
}
}
/**
* descendingEntrySet.toArray contains all entries
*/
public void testDescendingEntrySetToArray() {
ConcurrentNavigableMap map = map5();
Set s = map.descendingMap().entrySet();
Object[] ar = s.toArray();
assertEquals(5, ar.length);
for (int i = 0; i < 5; ++i) {
assertTrue(map.containsKey(((Map.Entry)(ar[i])).getKey()));
assertTrue(map.containsValue(((Map.Entry)(ar[i])).getValue()));
}
}
/**
* putAll adds all key-value pairs from the given map
*/
public void testPutAll() {
ConcurrentNavigableMap empty = DBMaker.newMemoryDB().make().createTreeMap("test").make();
ConcurrentNavigableMap 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));
}
/**
* putIfAbsent works when the given key is not present
*/
public void testPutIfAbsent() {
ConcurrentNavigableMap map = map5();
map.putIfAbsent(six, "Z");
assertTrue(map.containsKey(six));
}
/**
* putIfAbsent does not add the pair if the key is already present
*/
public void testPutIfAbsent2() {
ConcurrentNavigableMap map = map5();
assertEquals("A", map.putIfAbsent(one, "Z"));
}
/**
* replace fails when the given key is not present
*/
public void testReplace() {
ConcurrentNavigableMap map = map5();
assertNull(map.replace(six, "Z"));
assertFalse(map.containsKey(six));
}
/**
* replace succeeds if the key is already present
*/
public void testReplace2() {
ConcurrentNavigableMap map = map5();
assertNotNull(map.replace(one, "Z"));
assertEquals("Z", map.get(one));
}
/**
* replace value fails when the given key not mapped to expected value
*/
public void testReplaceValue() {
ConcurrentNavigableMap map = map5();
assertEquals("A", map.get(one));
assertFalse(map.replace(one, "Z", "Z"));
assertEquals("A", map.get(one));
}
/**
* replace value succeeds when the given key mapped to expected value
*/
public void testReplaceValue2() {
ConcurrentNavigableMap map = map5();
assertEquals("A", map.get(one));
assertTrue(map.replace(one, "A", "Z"));
assertEquals("Z", map.get(one));
}
/**
* remove removes the correct key-value pair from the map
*/
public void testRemove() {
ConcurrentNavigableMap map = map5();
map.remove(five);
assertEquals(4, map.size());
assertFalse(map.containsKey(five));
}
/**
* remove(key,value) removes only if pair present
*/
public void testRemove2() {
ConcurrentNavigableMap map = map5();
assertTrue(map.containsKey(five));
assertEquals("E", map.get(five));
map.remove(five, "E");
assertEquals(4, map.size());
assertFalse(map.containsKey(five));
map.remove(four, "A");
assertEquals(4, map.size());
assertTrue(map.containsKey(four));
}
/**
* lowerEntry returns preceding entry.
*/
public void testLowerEntry() {
ConcurrentNavigableMap 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() {
ConcurrentNavigableMap 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() {
ConcurrentNavigableMap 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() {
ConcurrentNavigableMap 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);
}
/**
* lowerEntry, higherEntry, ceilingEntry, and floorEntry return
* immutable entries
*/
public void testEntryImmutability() {
ConcurrentNavigableMap map = map5();
Map.Entry e = map.lowerEntry(three);
assertEquals(two, e.getKey());
try {
e.setValue("X");
shouldThrow();
} catch (UnsupportedOperationException success) {}
e = map.higherEntry(zero);
assertEquals(one, e.getKey());
try {
e.setValue("X");
shouldThrow();
} catch (UnsupportedOperationException success) {}
e = map.floorEntry(one);
assertEquals(one, e.getKey());
try {
e.setValue("X");
shouldThrow();
} catch (UnsupportedOperationException success) {}
e = map.ceilingEntry(five);
assertEquals(five, e.getKey());
try {
e.setValue("X");
shouldThrow();
} catch (UnsupportedOperationException success) {}
}
/**
* lowerKey returns preceding element
*/
public void testLowerKey() {
ConcurrentNavigableMap q= map5();
Object e1 = q.lowerKey(three);
assertEquals(two, e1);
Object e2 = q.lowerKey(six);
assertEquals(five, e2);
Object e3 = q.lowerKey(one);
assertNull(e3);
Object e4 = q.lowerKey(zero);
assertNull(e4);
}
/**
* higherKey returns next element
*/
public void testHigherKey() {
ConcurrentNavigableMap q= map5();
Object e1 = q.higherKey(three);
assertEquals(four, e1);
Object e2 = q.higherKey(zero);
assertEquals(one, e2);
Object e3 = q.higherKey(five);
assertNull(e3);
Object e4 = q.higherKey(six);
assertNull(e4);
}
/**
* floorKey returns preceding element
*/
public void testFloorKey() {
ConcurrentNavigableMap q= map5();
Object e1 = q.floorKey(three);
assertEquals(three, e1);
Object e2 = q.floorKey(six);
assertEquals(five, e2);
Object e3 = q.floorKey(one);
assertEquals(one, e3);
Object e4 = q.floorKey(zero);
assertNull(e4);
}
/**
* ceilingKey returns next element
*/
public void testCeilingKey() {
ConcurrentNavigableMap q= map5();
Object e1 = q.ceilingKey(three);
assertEquals(three, e1);
Object e2 = q.ceilingKey(zero);
assertEquals(one, e2);
Object e3 = q.ceilingKey(five);
assertEquals(five, e3);
Object e4 = q.ceilingKey(six);
assertNull(e4);
}
/**
* pollFirstEntry returns entries in order
*/
public void testPollFirstEntry() {
ConcurrentNavigableMap 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) {}
e = map.pollFirstEntry();
assertNull(e);
}
/**
* pollLastEntry returns entries in order
*/
public void testPollLastEntry() {
ConcurrentNavigableMap 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() {
ConcurrentNavigableMap map = map5();
ConcurrentNavigableMap empty = DBMaker.newMemoryDB().make().createTreeMap("test").make();
assertEquals(0, empty.size());
assertEquals(5, map.size());
}
/**
* toString contains toString of elements
*/
public void testToString() {
ConcurrentNavigableMap 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() {
try {
ConcurrentNavigableMap c = map5();
c.get(null);
shouldThrow();
} catch (NullPointerException success) {}
}
/**
* containsKey(null) of nonempty map throws NPE
*/
public void testContainsKey_NullPointerException() {
try {
ConcurrentNavigableMap c = map5();
c.containsKey(null);
shouldThrow();
} catch (NullPointerException success) {}
}
/**
* containsValue(null) throws NPE
*/
public void testContainsValue_NullPointerException() {
try {
ConcurrentNavigableMap c = DBMaker.newMemoryDB().make().createTreeMap("test").make();
c.containsValue(null);
shouldThrow();
} catch (NullPointerException success) {}
}
/**
* put(null,x) throws NPE
*/
public void testPut1_NullPointerException() {
try {
ConcurrentNavigableMap c = map5();
c.put(null, "whatever");
shouldThrow();
} catch (NullPointerException success) {}
}
/**
* putIfAbsent(null, x) throws NPE
*/
public void testPutIfAbsent1_NullPointerException() {
try {
ConcurrentNavigableMap c = map5();
c.putIfAbsent(null, "whatever");
shouldThrow();
} catch (NullPointerException success) {}
}
/**
* replace(null, x) throws NPE
*/
public void testReplace_NullPointerException() {
try {
ConcurrentNavigableMap c = map5();
c.replace(null, "whatever");
shouldThrow();
} catch (NullPointerException success) {}
}
/**
* replace(null, x, y) throws NPE
*/
public void testReplaceValue_NullPointerException() {
try {
ConcurrentNavigableMap c = map5();
c.replace(null, one, "whatever");
shouldThrow();
} catch (NullPointerException success) {}
}
/**
* remove(null) throws NPE
*/
public void testRemove1_NullPointerException() {
try {
ConcurrentNavigableMap c = DBMaker.newMemoryDB().make().createTreeMap("test").make();
c.put("sadsdf", "asdads");
c.remove(null);
shouldThrow();
} catch (NullPointerException success) {}
}
/**
* remove(null, x) throws NPE
*/
public void testRemove2_NullPointerException() {
try {
ConcurrentNavigableMap c = DBMaker.newMemoryDB().make().createTreeMap("test").make();
c.put("sadsdf", "asdads");
c.remove(null, "whatever");
shouldThrow();
} catch (NullPointerException success) {}
}
/**
* remove(x, null) returns false
*/
public void testRemove3() {
ConcurrentNavigableMap c = DBMaker.newMemoryDB().make().createTreeMap("test").make();
c.put("sadsdf", "asdads");
assertFalse(c.remove("sadsdf", null));
}
// /**
// * 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() {
ConcurrentNavigableMap map = map5();
NavigableMap sm = map.subMap(two, true, four, false);
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 r = sm.descendingKeySet().iterator();
k = (Integer)(r.next());
assertEquals(three, k);
k = (Integer)(r.next());
assertEquals(two, k);
assertFalse(r.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() {
ConcurrentNavigableMap map = map5();
NavigableMap sm = map.subMap(two, true, three, false);
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 r = sm.descendingKeySet().iterator();
k = (Integer)(r.next());
assertEquals(two, k);
assertFalse(r.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() {
ConcurrentNavigableMap map = map5();
NavigableMap sm = map.headMap(four, false);
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());
}
/**
* tailMap returns map with keys in requested range
*/
public void testTailMapContents() {
ConcurrentNavigableMap map = map5();
NavigableMap sm = map.tailMap(two, true);
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 r = sm.descendingKeySet().iterator();
k = (Integer)(r.next());
assertEquals(five, k);
k = (Integer)(r.next());
assertEquals(four, k);
k = (Integer)(r.next());
assertEquals(three, k);
k = (Integer)(r.next());
assertEquals(two, k);
assertFalse(r.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());
NavigableMap ssm = sm.tailMap(four, true);
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());
}
Random rnd = new Random(666);
BitSet bs;
final boolean expensiveTests = true;
/**
* Submaps of submaps subdivide correctly
*/
public void testRecursiveSubMaps() throws Exception {
int mapSize = expensiveTests ? 1000 : 100;
//Class cl = ConcurrentSkipListMap.class;
NavigableMap<Integer, Integer> map = // newMap(cl);
DBMaker.newMemoryDB().make().createTreeMap("test").make();
bs = new BitSet(mapSize);
populate(map, mapSize);
check(map, 0, mapSize - 1, true);
check(map.descendingMap(), 0, mapSize - 1, false);
mutateMap(map, 0, mapSize - 1);
check(map, 0, mapSize - 1, true);
check(map.descendingMap(), 0, mapSize - 1, false);
bashSubMap(map.subMap(0, true, mapSize, false),
0, mapSize - 1, true);
}
static NavigableMap<Integer, Integer> newMap(Class cl) throws Exception {
NavigableMap<Integer, Integer> result =
(NavigableMap<Integer, Integer>) cl.newInstance();
assertEquals(0, result.size());
assertFalse(result.keySet().iterator().hasNext());
return result;
}