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Comparing jsr166/src/test/tck/ConcurrentSkipListSubSetTest.java (file contents):
Revision 1.4 by dl, Thu Apr 20 20:35:00 2006 UTC vs.
Revision 1.29 by jsr166, Sat Jan 17 22:55:06 2015 UTC

#	Line 1 | Line 1
1		/*
2		* Written by Doug Lea with assistance from members of JCP JSR-166
3		* Expert Group and released to the public domain, as explained at
4	<	* http://creativecommons.org/licenses/publicdomain
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		*/
6
7	<	import junit.framework.*;
8	<	import java.util.*;
9	<	import java.util.concurrent.*;
10	<	import java.io.*;
7	>	import java.util.Arrays;
8	>	import java.util.Comparator;
9	>	import java.util.Iterator;
10	>	import java.util.NavigableSet;
11	>	import java.util.SortedSet;
12	>	import java.util.concurrent.ConcurrentSkipListSet;
13	>
14	>	import junit.framework.Test;
15	>	import junit.framework.TestSuite;
16
17		public class ConcurrentSkipListSubSetTest extends JSR166TestCase {
18		public static void main(String[] args) {
19	<	junit.textui.TestRunner.run (suite());
19	>	junit.textui.TestRunner.run(suite());
20		}
21		public static Test suite() {
22	<	return new TestSuite(ConcurrentSkipListSubSetTest.class);
22	>	return new TestSuite(ConcurrentSkipListSubSetTest.class);
23		}
24
25	<	static class MyReverseComparator implements Comparator {
25	>	static class MyReverseComparator implements Comparator {
26		public int compare(Object x, Object y) {
27	<	int i = ((Integer)x).intValue();
23	<	int j = ((Integer)y).intValue();
24	<	if (i < j) return 1;
25	<	if (i > j) return -1;
26	<	return 0;
27	>	return ((Comparable)y).compareTo(x);
28		}
29		}
30
31		/**
32	<	* Create a set of given size containing consecutive
32	>	* Returns a new set of given size containing consecutive
33		* Integers 0 ... n.
34		*/
35	<	private NavigableSet populatedSet(int n) {
36	<	ConcurrentSkipListSet q = new ConcurrentSkipListSet();
35	>	private NavigableSet<Integer> populatedSet(int n) {
36	>	ConcurrentSkipListSet<Integer> q =
37	>	new ConcurrentSkipListSet<Integer>();
38		assertTrue(q.isEmpty());
39
40	<	for(int i = n-1; i >= 0; i-=2)
41	<	assertTrue(q.add(new Integer(i)));
42	<	for(int i = (n & 1); i < n; i+=2)
43	<	assertTrue(q.add(new Integer(i)));
40	>	for (int i = n-1; i >= 0; i -= 2)
41	>	assertTrue(q.add(new Integer(i)));
42	>	for (int i = (n & 1); i < n; i += 2)
43	>	assertTrue(q.add(new Integer(i)));
44		assertTrue(q.add(new Integer(-n)));
45		assertTrue(q.add(new Integer(n)));
46		NavigableSet s = q.subSet(new Integer(0), true, new Integer(n), false);
47		assertFalse(s.isEmpty());
48	<	assertEquals(n, s.size());
48	>	assertEquals(n, s.size());
49		return s;
50		}
51
52		/**
53	<	* Create set of first 5 ints
53	>	* Returns a new set of first 5 ints.
54		*/
55		private NavigableSet set5() {
56		ConcurrentSkipListSet q = new ConcurrentSkipListSet();
#	Line 61 | Line 63 | public class ConcurrentSkipListSubSetTes
63		q.add(zero);
64		q.add(seven);
65		NavigableSet s = q.subSet(one, true, seven, false);
66	<	assertEquals(5, s.size());
66	>	assertEquals(5, s.size());
67		return s;
68		}
69
70		/**
71	<	* Create set of first 5 negative ints
71	>	* Returns a new set of first 5 negative ints.
72		*/
73		private NavigableSet dset5() {
74		ConcurrentSkipListSet q = new ConcurrentSkipListSet();
#	Line 77 | Line 79 | public class ConcurrentSkipListSubSetTes
79		q.add(m4);
80		q.add(m5);
81		NavigableSet s = q.descendingSet();
82	<	assertEquals(5, s.size());
82	>	assertEquals(5, s.size());
83		return s;
84		}
85
86	<	private static NavigableSet set0() {
87	<	ConcurrentSkipListSet set = new ConcurrentSkipListSet();
86	>	private static NavigableSet set0() {
87	>	ConcurrentSkipListSet set = new ConcurrentSkipListSet();
88		assertTrue(set.isEmpty());
89		return set.tailSet(m1, true);
90		}
91
92	<	private static NavigableSet dset0() {
93	<	ConcurrentSkipListSet set = new ConcurrentSkipListSet();
92	>	private static NavigableSet dset0() {
93	>	ConcurrentSkipListSet set = new ConcurrentSkipListSet();
94		assertTrue(set.isEmpty());
95		return set;
96		}
97	<
97	>
98		/**
99		* A new set has unbounded capacity
100		*/
#	Line 100 | Line 102 | public class ConcurrentSkipListSubSetTes
102		assertEquals(0, set0().size());
103		}
104
103	–
105		/**
106		* isEmpty is true before add, false after
107		*/
#	Line 134 | Line 135 | public class ConcurrentSkipListSubSetTes
135		* add(null) throws NPE
136		*/
137		public void testAddNull() {
138	<	try {
138	>	try {
139		NavigableSet q = set0();
140		q.add(null);
141		shouldThrow();
142	<	} catch (NullPointerException success) { }
142	>	} catch (NullPointerException success) {}
143		}
144
145		/**
#	Line 168 | Line 169 | public class ConcurrentSkipListSubSetTes
169		q.add(new Object());
170		q.add(new Object());
171		shouldThrow();
172	<	}
172	<	catch(ClassCastException success) {}
172	>	} catch (ClassCastException success) {}
173		}
174
175	–
175		/**
176		* addAll(null) throws NPE
177		*/
#	Line 181 | Line 180 | public class ConcurrentSkipListSubSetTes
180		NavigableSet q = set0();
181		q.addAll(null);
182		shouldThrow();
183	<	}
185	<	catch (NullPointerException success) {}
183	>	} catch (NullPointerException success) {}
184		}
185	+
186		/**
187		* addAll of a collection with null elements throws NPE
188		*/
#	Line 193 | Line 192 | public class ConcurrentSkipListSubSetTes
192		Integer[] ints = new Integer[SIZE];
193		q.addAll(Arrays.asList(ints));
194		shouldThrow();
195	<	}
197	<	catch (NullPointerException success) {}
195	>	} catch (NullPointerException success) {}
196		}
197	+
198		/**
199		* addAll of a collection with any null elements throws NPE after
200		* possibly adding some elements
#	Line 208 | Line 207 | public class ConcurrentSkipListSubSetTes
207		ints[i] = new Integer(i+SIZE);
208		q.addAll(Arrays.asList(ints));
209		shouldThrow();
210	<	}
212	<	catch (NullPointerException success) {}
210	>	} catch (NullPointerException success) {}
211		}
212
213		/**
214		* Set contains all elements of successful addAll
215		*/
216		public void testAddAll5() {
217	<	try {
218	<	Integer[] empty = new Integer[0];
219	<	Integer[] ints = new Integer[SIZE];
220	<	for (int i = 0; i < SIZE; ++i)
221	<	ints[i] = new Integer(SIZE-1- i);
222	<	NavigableSet q = set0();
223	<	assertFalse(q.addAll(Arrays.asList(empty)));
224	<	assertTrue(q.addAll(Arrays.asList(ints)));
225	<	for (int i = 0; i < SIZE; ++i)
228	<	assertEquals(new Integer(i), q.pollFirst());
229	<	}
230	<	finally {}
217	>	Integer[] empty = new Integer[0];
218	>	Integer[] ints = new Integer[SIZE];
219	>	for (int i = 0; i < SIZE; ++i)
220	>	ints[i] = new Integer(SIZE-1- i);
221	>	NavigableSet q = set0();
222	>	assertFalse(q.addAll(Arrays.asList(empty)));
223	>	assertTrue(q.addAll(Arrays.asList(ints)));
224	>	for (int i = 0; i < SIZE; ++i)
225	>	assertEquals(new Integer(i), q.pollFirst());
226		}
227
228		/**
#	Line 236 | Line 231 | public class ConcurrentSkipListSubSetTes
231		public void testPoll() {
232		NavigableSet q = populatedSet(SIZE);
233		for (int i = 0; i < SIZE; ++i) {
234	<	assertEquals(i, ((Integer)q.pollFirst()).intValue());
234	>	assertEquals(i, q.pollFirst());
235		}
236	<	assertNull(q.pollFirst());
236	>	assertNull(q.pollFirst());
237		}
238
239		/**
#	Line 246 | Line 241 | public class ConcurrentSkipListSubSetTes
241		*/
242		public void testRemoveElement() {
243		NavigableSet q = populatedSet(SIZE);
244	<	for (int i = 1; i < SIZE; i+=2) {
245	<	assertTrue(q.remove(new Integer(i)));
246	<	}
247	<	for (int i = 0; i < SIZE; i+=2) {
248	<	assertTrue(q.remove(new Integer(i)));
249	<	assertFalse(q.remove(new Integer(i+1)));
244	>	for (int i = 1; i < SIZE; i += 2) {
245	>	assertTrue(q.contains(i));
246	>	assertTrue(q.remove(i));
247	>	assertFalse(q.contains(i));
248	>	assertTrue(q.contains(i-1));
249	>	}
250	>	for (int i = 0; i < SIZE; i += 2) {
251	>	assertTrue(q.contains(i));
252	>	assertTrue(q.remove(i));
253	>	assertFalse(q.contains(i));
254	>	assertFalse(q.remove(i+1));
255	>	assertFalse(q.contains(i+1));
256		}
257		assertTrue(q.isEmpty());
258		}
259	<
259	>
260		/**
261		* contains(x) reports true when elements added but not yet removed
262		*/
#	Line 325 | Line 326 | public class ConcurrentSkipListSubSetTes
326		assertTrue(q.removeAll(p));
327		assertEquals(SIZE-i, q.size());
328		for (int j = 0; j < i; ++j) {
329	<	Integer I = (Integer)(p.pollFirst());
330	<	assertFalse(q.contains(I));
329	>	Integer x = (Integer)(p.pollFirst());
330	>	assertFalse(q.contains(x));
331		}
332		}
333		}
334
334	–
335	–
335		/**
336		* lower returns preceding element
337		*/
#	Line 349 | Line 348 | public class ConcurrentSkipListSubSetTes
348
349		Object e4 = q.lower(zero);
350		assertNull(e4);
352	–
351		}
352
353		/**
#	Line 368 | Line 366 | public class ConcurrentSkipListSubSetTes
366
367		Object e4 = q.higher(six);
368		assertNull(e4);
371	–
369		}
370
371		/**
#	Line 387 | Line 384 | public class ConcurrentSkipListSubSetTes
384
385		Object e4 = q.floor(zero);
386		assertNull(e4);
390	–
387		}
388
389		/**
#	Line 406 | Line 402 | public class ConcurrentSkipListSubSetTes
402
403		Object e4 = q.ceiling(six);
404		assertNull(e4);
409	–
405		}
406
407		/**
408	<	* toArray contains all elements
408	>	* toArray contains all elements in sorted order
409		*/
410		public void testToArray() {
411		NavigableSet q = populatedSet(SIZE);
412	<	Object[] o = q.toArray();
413	<	Arrays.sort(o);
414	<	for(int i = 0; i < o.length; i++)
420	<	assertEquals(o[i], q.pollFirst());
412	>	Object[] o = q.toArray();
413	>	for (int i = 0; i < o.length; i++)
414	>	assertSame(o[i], q.pollFirst());
415		}
416
417		/**
418	<	* toArray(a) contains all elements
418	>	* toArray(a) contains all elements in sorted order
419		*/
420		public void testToArray2() {
421	<	NavigableSet q = populatedSet(SIZE);
422	<	Integer[] ints = new Integer[SIZE];
423	<	ints = (Integer[])q.toArray(ints);
424	<	Arrays.sort(ints);
425	<	for(int i = 0; i < ints.length; i++)
426	<	assertEquals(ints[i], q.pollFirst());
421	>	NavigableSet<Integer> q = populatedSet(SIZE);
422	>	Integer[] ints = new Integer[SIZE];
423	>	Integer[] array = q.toArray(ints);
424	>	assertSame(ints, array);
425	>	for (int i = 0; i < ints.length; i++)
426	>	assertSame(ints[i], q.pollFirst());
427		}
428	<
428	>
429		/**
430		* iterator iterates through all elements
431		*/
432		public void testIterator() {
433		NavigableSet q = populatedSet(SIZE);
434	<	int i = 0;
435	<	Iterator it = q.iterator();
436	<	while(it.hasNext()) {
434	>	Iterator it = q.iterator();
435	>	int i;
436	>	for (i = 0; it.hasNext(); i++)
437		assertTrue(q.contains(it.next()));
444	–	++i;
445	–	}
438		assertEquals(i, SIZE);
439	+	assertIteratorExhausted(it);
440		}
441
442		/**
443		* iterator of empty set has no elements
444		*/
445		public void testEmptyIterator() {
446	<	NavigableSet q = set0();
454	<	int i = 0;
455	<	Iterator it = q.iterator();
456	<	while(it.hasNext()) {
457	<	assertTrue(q.contains(it.next()));
458	<	++i;
459	<	}
460	<	assertEquals(i, 0);
446	>	assertIteratorExhausted(set0().iterator());
447		}
448
449		/**
450		* iterator.remove removes current element
451		*/
452	<	public void testIteratorRemove () {
452	>	public void testIteratorRemove() {
453		final NavigableSet q = set0();
454		q.add(new Integer(2));
455		q.add(new Integer(1));
#	Line 479 | Line 465 | public class ConcurrentSkipListSubSetTes
465		assertFalse(it.hasNext());
466		}
467
482	–
468		/**
469		* toString contains toStrings of elements
470		*/
#	Line 487 | Line 472 | public class ConcurrentSkipListSubSetTes
472		NavigableSet q = populatedSet(SIZE);
473		String s = q.toString();
474		for (int i = 0; i < SIZE; ++i) {
475	<	assertTrue(s.indexOf(String.valueOf(i)) >= 0);
475	>	assertTrue(s.contains(String.valueOf(i)));
476		}
477	<	}
477	>	}
478
479		/**
480	<	* A deserialized serialized set has same elements
480	>	* A deserialized serialized set has same elements
481		*/
482	<	public void testSerialization() {
483	<	NavigableSet q = populatedSet(SIZE);
484	<	try {
485	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
486	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
487	<	out.writeObject(q);
488	<	out.close();
489	<
490	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
491	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
492	<	NavigableSet r = (NavigableSet)in.readObject();
508	<	assertEquals(q.size(), r.size());
509	<	while (!q.isEmpty())
510	<	assertEquals(q.pollFirst(), r.pollFirst());
511	<	} catch(Exception e){
512	<	e.printStackTrace();
513	<	unexpectedException();
482	>	public void testSerialization() throws Exception {
483	>	NavigableSet x = populatedSet(SIZE);
484	>	NavigableSet y = serialClone(x);
485	>
486	>	assertNotSame(y, x);
487	>	assertEquals(x.size(), y.size());
488	>	assertEquals(x, y);
489	>	assertEquals(y, x);
490	>	while (!x.isEmpty()) {
491	>	assertFalse(y.isEmpty());
492	>	assertEquals(x.pollFirst(), y.pollFirst());
493		}
494	+	assertTrue(y.isEmpty());
495		}
496
497		/**
#	Line 652 | Line 632 | public class ConcurrentSkipListSubSetTes
632		* add(null) throws NPE
633		*/
634		public void testDescendingAddNull() {
635	<	try {
635	>	try {
636		NavigableSet q = dset0();
637		q.add(null);
638		shouldThrow();
639	<	} catch (NullPointerException success) { }
639	>	} catch (NullPointerException success) {}
640		}
641
642		/**
#	Line 686 | Line 666 | public class ConcurrentSkipListSubSetTes
666		q.add(new Object());
667		q.add(new Object());
668		shouldThrow();
669	<	}
690	<	catch(ClassCastException success) {}
669	>	} catch (ClassCastException success) {}
670		}
671
693	–
672		/**
673		* addAll(null) throws NPE
674		*/
#	Line 699 | Line 677 | public class ConcurrentSkipListSubSetTes
677		NavigableSet q = dset0();
678		q.addAll(null);
679		shouldThrow();
680	<	}
703	<	catch (NullPointerException success) {}
680	>	} catch (NullPointerException success) {}
681		}
682	+
683		/**
684		* addAll of a collection with null elements throws NPE
685		*/
#	Line 711 | Line 689 | public class ConcurrentSkipListSubSetTes
689		Integer[] ints = new Integer[SIZE];
690		q.addAll(Arrays.asList(ints));
691		shouldThrow();
692	<	}
715	<	catch (NullPointerException success) {}
692	>	} catch (NullPointerException success) {}
693		}
694	+
695		/**
696		* addAll of a collection with any null elements throws NPE after
697		* possibly adding some elements
#	Line 726 | Line 704 | public class ConcurrentSkipListSubSetTes
704		ints[i] = new Integer(i+SIZE);
705		q.addAll(Arrays.asList(ints));
706		shouldThrow();
707	<	}
730	<	catch (NullPointerException success) {}
707	>	} catch (NullPointerException success) {}
708		}
709
710		/**
711		* Set contains all elements of successful addAll
712		*/
713		public void testDescendingAddAll5() {
714	<	try {
715	<	Integer[] empty = new Integer[0];
716	<	Integer[] ints = new Integer[SIZE];
717	<	for (int i = 0; i < SIZE; ++i)
718	<	ints[i] = new Integer(SIZE-1- i);
719	<	NavigableSet q = dset0();
720	<	assertFalse(q.addAll(Arrays.asList(empty)));
721	<	assertTrue(q.addAll(Arrays.asList(ints)));
722	<	for (int i = 0; i < SIZE; ++i)
746	<	assertEquals(new Integer(i), q.pollFirst());
747	<	}
748	<	finally {}
714	>	Integer[] empty = new Integer[0];
715	>	Integer[] ints = new Integer[SIZE];
716	>	for (int i = 0; i < SIZE; ++i)
717	>	ints[i] = new Integer(SIZE-1- i);
718	>	NavigableSet q = dset0();
719	>	assertFalse(q.addAll(Arrays.asList(empty)));
720	>	assertTrue(q.addAll(Arrays.asList(ints)));
721	>	for (int i = 0; i < SIZE; ++i)
722	>	assertEquals(new Integer(i), q.pollFirst());
723		}
724
725		/**
#	Line 754 | Line 728 | public class ConcurrentSkipListSubSetTes
728		public void testDescendingPoll() {
729		NavigableSet q = populatedSet(SIZE);
730		for (int i = 0; i < SIZE; ++i) {
731	<	assertEquals(i, ((Integer)q.pollFirst()).intValue());
731	>	assertEquals(i, q.pollFirst());
732		}
733	<	assertNull(q.pollFirst());
733	>	assertNull(q.pollFirst());
734		}
735
736		/**
#	Line 764 | Line 738 | public class ConcurrentSkipListSubSetTes
738		*/
739		public void testDescendingRemoveElement() {
740		NavigableSet q = populatedSet(SIZE);
741	<	for (int i = 1; i < SIZE; i+=2) {
741	>	for (int i = 1; i < SIZE; i += 2) {
742		assertTrue(q.remove(new Integer(i)));
743		}
744	<	for (int i = 0; i < SIZE; i+=2) {
744	>	for (int i = 0; i < SIZE; i += 2 ) {
745		assertTrue(q.remove(new Integer(i)));
746		assertFalse(q.remove(new Integer(i+1)));
747		}
748		assertTrue(q.isEmpty());
749		}
750	<
750	>
751		/**
752		* contains(x) reports true when elements added but not yet removed
753		*/
#	Line 843 | Line 817 | public class ConcurrentSkipListSubSetTes
817		assertTrue(q.removeAll(p));
818		assertEquals(SIZE-i, q.size());
819		for (int j = 0; j < i; ++j) {
820	<	Integer I = (Integer)(p.pollFirst());
821	<	assertFalse(q.contains(I));
820	>	Integer x = (Integer)(p.pollFirst());
821	>	assertFalse(q.contains(x));
822		}
823		}
824		}
825
852	–
853	–
826		/**
827		* lower returns preceding element
828		*/
#	Line 867 | Line 839 | public class ConcurrentSkipListSubSetTes
839
840		Object e4 = q.lower(zero);
841		assertNull(e4);
870	–
842		}
843
844		/**
#	Line 886 | Line 857 | public class ConcurrentSkipListSubSetTes
857
858		Object e4 = q.higher(m6);
859		assertNull(e4);
889	–
860		}
861
862		/**
#	Line 905 | Line 875 | public class ConcurrentSkipListSubSetTes
875
876		Object e4 = q.floor(zero);
877		assertNull(e4);
908	–
878		}
879
880		/**
#	Line 924 | Line 893 | public class ConcurrentSkipListSubSetTes
893
894		Object e4 = q.ceiling(m6);
895		assertNull(e4);
927	–
896		}
897
898		/**
#	Line 932 | Line 900 | public class ConcurrentSkipListSubSetTes
900		*/
901		public void testDescendingToArray() {
902		NavigableSet q = populatedSet(SIZE);
903	<	Object[] o = q.toArray();
903	>	Object[] o = q.toArray();
904		Arrays.sort(o);
905	<	for(int i = 0; i < o.length; i++)
906	<	assertEquals(o[i], q.pollFirst());
905	>	for (int i = 0; i < o.length; i++)
906	>	assertEquals(o[i], q.pollFirst());
907		}
908
909		/**
#	Line 943 | Line 911 | public class ConcurrentSkipListSubSetTes
911		*/
912		public void testDescendingToArray2() {
913		NavigableSet q = populatedSet(SIZE);
914	<	Integer[] ints = new Integer[SIZE];
915	<	ints = (Integer[])q.toArray(ints);
914	>	Integer[] ints = new Integer[SIZE];
915	>	assertSame(ints, q.toArray(ints));
916		Arrays.sort(ints);
917	<	for(int i = 0; i < ints.length; i++)
917	>	for (int i = 0; i < ints.length; i++)
918		assertEquals(ints[i], q.pollFirst());
919		}
920	<
920	>
921		/**
922		* iterator iterates through all elements
923		*/
924		public void testDescendingIterator() {
925		NavigableSet q = populatedSet(SIZE);
926		int i = 0;
927	<	Iterator it = q.iterator();
928	<	while(it.hasNext()) {
927	>	Iterator it = q.iterator();
928	>	while (it.hasNext()) {
929		assertTrue(q.contains(it.next()));
930		++i;
931		}
#	Line 970 | Line 938 | public class ConcurrentSkipListSubSetTes
938		public void testDescendingEmptyIterator() {
939		NavigableSet q = dset0();
940		int i = 0;
941	<	Iterator it = q.iterator();
942	<	while(it.hasNext()) {
941	>	Iterator it = q.iterator();
942	>	while (it.hasNext()) {
943		assertTrue(q.contains(it.next()));
944		++i;
945		}
946	<	assertEquals(i, 0);
946	>	assertEquals(0, i);
947		}
948
949		/**
950		* iterator.remove removes current element
951		*/
952	<	public void testDescendingIteratorRemove () {
952	>	public void testDescendingIteratorRemove() {
953		final NavigableSet q = dset0();
954		q.add(new Integer(2));
955		q.add(new Integer(1));
#	Line 997 | Line 965 | public class ConcurrentSkipListSubSetTes
965		assertFalse(it.hasNext());
966		}
967
1000	–
968		/**
969		* toString contains toStrings of elements
970		*/
#	Line 1005 | Line 972 | public class ConcurrentSkipListSubSetTes
972		NavigableSet q = populatedSet(SIZE);
973		String s = q.toString();
974		for (int i = 0; i < SIZE; ++i) {
975	<	assertTrue(s.indexOf(String.valueOf(i)) >= 0);
975	>	assertTrue(s.contains(String.valueOf(i)));
976		}
977	<	}
977	>	}
978
979		/**
980	<	* A deserialized serialized set has same elements
980	>	* A deserialized serialized set has same elements
981		*/
982	<	public void testDescendingSerialization() {
983	<	NavigableSet q = populatedSet(SIZE);
984	<	try {
985	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
986	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
987	<	out.writeObject(q);
988	<	out.close();
989	<
990	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
991	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
992	<	NavigableSet r = (NavigableSet)in.readObject();
1026	<	assertEquals(q.size(), r.size());
1027	<	while (!q.isEmpty())
1028	<	assertEquals(q.pollFirst(), r.pollFirst());
1029	<	} catch(Exception e){
1030	<	e.printStackTrace();
1031	<	unexpectedException();
982	>	public void testDescendingSerialization() throws Exception {
983	>	NavigableSet x = dset5();
984	>	NavigableSet y = serialClone(x);
985	>
986	>	assertNotSame(y, x);
987	>	assertEquals(x.size(), y.size());
988	>	assertEquals(x, y);
989	>	assertEquals(y, x);
990	>	while (!x.isEmpty()) {
991	>	assertFalse(y.isEmpty());
992	>	assertEquals(x.pollFirst(), y.pollFirst());
993		}
994	+	assertTrue(y.isEmpty());
995		}
996
997		/**

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