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Comparing jsr166/src/test/tck/ConcurrentSkipListSubSetTest.java (file contents):
Revision 1.11 by jsr166, Sun Nov 22 18:57:17 2009 UTC vs.
Revision 1.39 by jsr166, Mon May 28 21:19:50 2018 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	>	main(suite(), args);
20		}
21		public static Test suite() {
22		return new TestSuite(ConcurrentSkipListSubSetTest.class);
#	Line 24 | Line 29 | public class ConcurrentSkipListSubSetTes
29		}
30
31		/**
32	<	* Create a set of given size containing consecutive
33	<	* Integers 0 ... n.
32	>	* Returns a new set of given size containing consecutive
33	>	* Integers 0 ... n - 1.
34		*/
35	<	private NavigableSet populatedSet(int n) {
36	<	ConcurrentSkipListSet q = new ConcurrentSkipListSet();
35	>	private static NavigableSet<Integer> populatedSet(int n) {
36	>	ConcurrentSkipListSet<Integer> q = new ConcurrentSkipListSet<>();
37		assertTrue(q.isEmpty());
38
39	<	for (int i = n-1; i >= 0; i-=2)
39	>	for (int i = n - 1; i >= 0; i -= 2)
40		assertTrue(q.add(new Integer(i)));
41	<	for (int i = (n & 1); i < n; i+=2)
41	>	for (int i = (n & 1); i < n; i += 2)
42		assertTrue(q.add(new Integer(i)));
43		assertTrue(q.add(new Integer(-n)));
44		assertTrue(q.add(new Integer(n)));
#	Line 44 | Line 49 | public class ConcurrentSkipListSubSetTes
49		}
50
51		/**
52	<	* Create set of first 5 ints
52	>	* Returns a new set of first 5 ints.
53		*/
54	<	private NavigableSet set5() {
54	>	private static NavigableSet set5() {
55		ConcurrentSkipListSet q = new ConcurrentSkipListSet();
56		assertTrue(q.isEmpty());
57		q.add(one);
#	Line 62 | Line 67 | public class ConcurrentSkipListSubSetTes
67		}
68
69		/**
70	<	* Create set of first 5 negative ints
70	>	* Returns a new set of first 5 negative ints.
71		*/
72	<	private NavigableSet dset5() {
72	>	private static NavigableSet dset5() {
73		ConcurrentSkipListSet q = new ConcurrentSkipListSet();
74		assertTrue(q.isEmpty());
75		q.add(m1);
#	Line 96 | Line 101 | public class ConcurrentSkipListSubSetTes
101		assertEquals(0, set0().size());
102		}
103
99	–
104		/**
105		* isEmpty is true before add, false after
106		*/
#	Line 117 | Line 121 | public class ConcurrentSkipListSubSetTes
121		public void testSize() {
122		NavigableSet q = populatedSet(SIZE);
123		for (int i = 0; i < SIZE; ++i) {
124	<	assertEquals(SIZE-i, q.size());
124	>	assertEquals(SIZE - i, q.size());
125		q.pollFirst();
126		}
127		for (int i = 0; i < SIZE; ++i) {
#	Line 130 | Line 134 | public class ConcurrentSkipListSubSetTes
134		* add(null) throws NPE
135		*/
136		public void testAddNull() {
137	+	NavigableSet q = set0();
138		try {
134	–	NavigableSet q = set0();
139		q.add(null);
140		shouldThrow();
141		} catch (NullPointerException success) {}
#	Line 158 | Line 162 | public class ConcurrentSkipListSubSetTes
162		* Add of non-Comparable throws CCE
163		*/
164		public void testAddNonComparable() {
165	+	NavigableSet q = set0();
166		try {
162	–	NavigableSet q = set0();
163	–	q.add(new Object());
167		q.add(new Object());
168		q.add(new Object());
169		shouldThrow();
170		} catch (ClassCastException success) {}
171		}
172
170	–
173		/**
174		* addAll(null) throws NPE
175		*/
176		public void testAddAll1() {
177	+	NavigableSet q = set0();
178		try {
176	–	NavigableSet q = set0();
179		q.addAll(null);
180		shouldThrow();
181		} catch (NullPointerException success) {}
182		}
183	+
184		/**
185		* addAll of a collection with null elements throws NPE
186		*/
187		public void testAddAll2() {
188	+	NavigableSet q = set0();
189	+	Integer[] ints = new Integer[SIZE];
190		try {
186	–	NavigableSet q = set0();
187	–	Integer[] ints = new Integer[SIZE];
191		q.addAll(Arrays.asList(ints));
192		shouldThrow();
193		} catch (NullPointerException success) {}
194		}
195	+
196		/**
197		* addAll of a collection with any null elements throws NPE after
198		* possibly adding some elements
199		*/
200		public void testAddAll3() {
201	+	NavigableSet q = set0();
202	+	Integer[] ints = new Integer[SIZE];
203	+	for (int i = 0; i < SIZE - 1; ++i)
204	+	ints[i] = new Integer(i + SIZE);
205		try {
198	–	NavigableSet q = set0();
199	–	Integer[] ints = new Integer[SIZE];
200	–	for (int i = 0; i < SIZE-1; ++i)
201	–	ints[i] = new Integer(i+SIZE);
206		q.addAll(Arrays.asList(ints));
207		shouldThrow();
208		} catch (NullPointerException success) {}
#	Line 211 | Line 215 | public class ConcurrentSkipListSubSetTes
215		Integer[] empty = new Integer[0];
216		Integer[] ints = new Integer[SIZE];
217		for (int i = 0; i < SIZE; ++i)
218	<	ints[i] = new Integer(SIZE-1- i);
218	>	ints[i] = new Integer(SIZE - 1 - i);
219		NavigableSet q = set0();
220		assertFalse(q.addAll(Arrays.asList(empty)));
221		assertTrue(q.addAll(Arrays.asList(ints)));
#	Line 235 | Line 239 | public class ConcurrentSkipListSubSetTes
239		*/
240		public void testRemoveElement() {
241		NavigableSet q = populatedSet(SIZE);
242	<	for (int i = 1; i < SIZE; i+=2) {
243	<	assertTrue(q.remove(new Integer(i)));
244	<	}
245	<	for (int i = 0; i < SIZE; i+=2) {
246	<	assertTrue(q.remove(new Integer(i)));
247	<	assertFalse(q.remove(new Integer(i+1)));
242	>	for (int i = 1; i < SIZE; i += 2) {
243	>	assertTrue(q.contains(i));
244	>	assertTrue(q.remove(i));
245	>	assertFalse(q.contains(i));
246	>	assertTrue(q.contains(i - 1));
247	>	}
248	>	for (int i = 0; i < SIZE; i += 2) {
249	>	assertTrue(q.contains(i));
250	>	assertTrue(q.remove(i));
251	>	assertFalse(q.contains(i));
252	>	assertFalse(q.remove(i + 1));
253	>	assertFalse(q.contains(i + 1));
254		}
255		assertTrue(q.isEmpty());
256		}
#	Line 299 | Line 309 | public class ConcurrentSkipListSubSetTes
309		assertTrue(changed);
310
311		assertTrue(q.containsAll(p));
312	<	assertEquals(SIZE-i, q.size());
312	>	assertEquals(SIZE - i, q.size());
313		p.pollFirst();
314		}
315		}
#	Line 312 | Line 322 | public class ConcurrentSkipListSubSetTes
322		NavigableSet q = populatedSet(SIZE);
323		NavigableSet p = populatedSet(i);
324		assertTrue(q.removeAll(p));
325	<	assertEquals(SIZE-i, q.size());
325	>	assertEquals(SIZE - i, q.size());
326		for (int j = 0; j < i; ++j) {
327	<	Integer I = (Integer)(p.pollFirst());
328	<	assertFalse(q.contains(I));
327	>	Integer x = (Integer)(p.pollFirst());
328	>	assertFalse(q.contains(x));
329		}
330		}
331		}
332
323	–
324	–
333		/**
334		* lower returns preceding element
335		*/
#	Line 338 | Line 346 | public class ConcurrentSkipListSubSetTes
346
347		Object e4 = q.lower(zero);
348		assertNull(e4);
341	–
349		}
350
351		/**
#	Line 357 | Line 364 | public class ConcurrentSkipListSubSetTes
364
365		Object e4 = q.higher(six);
366		assertNull(e4);
360	–
367		}
368
369		/**
#	Line 376 | Line 382 | public class ConcurrentSkipListSubSetTes
382
383		Object e4 = q.floor(zero);
384		assertNull(e4);
379	–
385		}
386
387		/**
#	Line 395 | Line 400 | public class ConcurrentSkipListSubSetTes
400
401		Object e4 = q.ceiling(six);
402		assertNull(e4);
398	–
403		}
404
405		/**
406	<	* toArray contains all elements
406	>	* toArray contains all elements in sorted order
407		*/
408		public void testToArray() {
409		NavigableSet q = populatedSet(SIZE);
410	<	Object[] o = q.toArray();
411	<	Arrays.sort(o);
412	<	for (int i = 0; i < o.length; i++)
413	<	assertEquals(o[i], q.pollFirst());
410	>	Object[] a = q.toArray();
411	>	assertSame(Object[].class, a.getClass());
412	>	for (Object o : a)
413	>	assertSame(o, q.pollFirst());
414	>	assertTrue(q.isEmpty());
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);
421	>	NavigableSet<Integer> 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());
423	>	Integer[] array = q.toArray(ints);
424	>	assertSame(ints, array);
425	>	for (Integer o : ints)
426	>	assertSame(o, q.pollFirst());
427	>	assertTrue(q.isEmpty());
428		}
429
430		/**
#	Line 426 | Line 432 | public class ConcurrentSkipListSubSetTes
432		*/
433		public void testIterator() {
434		NavigableSet q = populatedSet(SIZE);
429	–	int i = 0;
435		Iterator it = q.iterator();
436	<	while (it.hasNext()) {
436	>	int i;
437	>	for (i = 0; it.hasNext(); i++)
438		assertTrue(q.contains(it.next()));
433	–	++i;
434	–	}
439		assertEquals(i, SIZE);
440	+	assertIteratorExhausted(it);
441		}
442
443		/**
444		* iterator of empty set has no elements
445		*/
446		public void testEmptyIterator() {
447	<	NavigableSet q = set0();
443	<	int i = 0;
444	<	Iterator it = q.iterator();
445	<	while (it.hasNext()) {
446	<	assertTrue(q.contains(it.next()));
447	<	++i;
448	<	}
449	<	assertEquals(i, 0);
447	>	assertIteratorExhausted(set0().iterator());
448		}
449
450		/**
451		* iterator.remove removes current element
452		*/
453	<	public void testIteratorRemove () {
453	>	public void testIteratorRemove() {
454		final NavigableSet q = set0();
455		q.add(new Integer(2));
456		q.add(new Integer(1));
#	Line 468 | Line 466 | public class ConcurrentSkipListSubSetTes
466		assertFalse(it.hasNext());
467		}
468
471	–
469		/**
470		* toString contains toStrings of elements
471		*/
#	Line 476 | Line 473 | public class ConcurrentSkipListSubSetTes
473		NavigableSet q = populatedSet(SIZE);
474		String s = q.toString();
475		for (int i = 0; i < SIZE; ++i) {
476	<	assertTrue(s.indexOf(String.valueOf(i)) >= 0);
476	>	assertTrue(s.contains(String.valueOf(i)));
477		}
478		}
479
480		/**
481	<	* A deserialized serialized set has same elements
481	>	* A deserialized/reserialized set equals original
482		*/
483		public void testSerialization() throws Exception {
484	<	NavigableSet q = populatedSet(SIZE);
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();
493	<	assertEquals(q.size(), r.size());
494	<	while (!q.isEmpty())
495	<	assertEquals(q.pollFirst(), r.pollFirst());
484	>	NavigableSet x = populatedSet(SIZE);
485	>	NavigableSet y = serialClone(x);
486	>
487	>	assertNotSame(y, x);
488	>	assertEquals(x.size(), y.size());
489	>	assertEquals(x, y);
490	>	assertEquals(y, x);
491	>	while (!x.isEmpty()) {
492	>	assertFalse(y.isEmpty());
493	>	assertEquals(x.pollFirst(), y.pollFirst());
494	>	}
495	>	assertTrue(y.isEmpty());
496		}
497
498		/**
#	Line 623 | Line 620 | public class ConcurrentSkipListSubSetTes
620		public void testDescendingSize() {
621		NavigableSet q = populatedSet(SIZE);
622		for (int i = 0; i < SIZE; ++i) {
623	<	assertEquals(SIZE-i, q.size());
623	>	assertEquals(SIZE - i, q.size());
624		q.pollFirst();
625		}
626		for (int i = 0; i < SIZE; ++i) {
#	Line 636 | Line 633 | public class ConcurrentSkipListSubSetTes
633		* add(null) throws NPE
634		*/
635		public void testDescendingAddNull() {
636	+	NavigableSet q = dset0();
637		try {
640	–	NavigableSet q = dset0();
638		q.add(null);
639		shouldThrow();
640		} catch (NullPointerException success) {}
#	Line 664 | Line 661 | public class ConcurrentSkipListSubSetTes
661		* Add of non-Comparable throws CCE
662		*/
663		public void testDescendingAddNonComparable() {
664	+	NavigableSet q = dset0();
665		try {
668	–	NavigableSet q = dset0();
669	–	q.add(new Object());
666		q.add(new Object());
667		q.add(new Object());
668		shouldThrow();
669		} catch (ClassCastException success) {}
670		}
671
676	–
672		/**
673		* addAll(null) throws NPE
674		*/
675		public void testDescendingAddAll1() {
676	+	NavigableSet q = dset0();
677		try {
682	–	NavigableSet q = dset0();
678		q.addAll(null);
679		shouldThrow();
680		} catch (NullPointerException success) {}
681		}
682	+
683		/**
684		* addAll of a collection with null elements throws NPE
685		*/
686		public void testDescendingAddAll2() {
687	+	NavigableSet q = dset0();
688	+	Integer[] ints = new Integer[SIZE];
689		try {
692	–	NavigableSet q = dset0();
693	–	Integer[] ints = new Integer[SIZE];
690		q.addAll(Arrays.asList(ints));
691		shouldThrow();
692		} catch (NullPointerException success) {}
693		}
694	+
695		/**
696		* addAll of a collection with any null elements throws NPE after
697		* possibly adding some elements
698		*/
699		public void testDescendingAddAll3() {
700	+	NavigableSet q = dset0();
701	+	Integer[] ints = new Integer[SIZE];
702	+	for (int i = 0; i < SIZE - 1; ++i)
703	+	ints[i] = new Integer(i + SIZE);
704		try {
704	–	NavigableSet q = dset0();
705	–	Integer[] ints = new Integer[SIZE];
706	–	for (int i = 0; i < SIZE-1; ++i)
707	–	ints[i] = new Integer(i+SIZE);
705		q.addAll(Arrays.asList(ints));
706		shouldThrow();
707		} catch (NullPointerException success) {}
#	Line 717 | Line 714 | public class ConcurrentSkipListSubSetTes
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);
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)));
#	Line 741 | 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)));
746	>	assertFalse(q.remove(new Integer(i + 1)));
747		}
748		assertTrue(q.isEmpty());
749		}
#	Line 805 | Line 802 | public class ConcurrentSkipListSubSetTes
802		assertTrue(changed);
803
804		assertTrue(q.containsAll(p));
805	<	assertEquals(SIZE-i, q.size());
805	>	assertEquals(SIZE - i, q.size());
806		p.pollFirst();
807		}
808		}
#	Line 818 | Line 815 | public class ConcurrentSkipListSubSetTes
815		NavigableSet q = populatedSet(SIZE);
816		NavigableSet p = populatedSet(i);
817		assertTrue(q.removeAll(p));
818	<	assertEquals(SIZE-i, q.size());
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
829	–
830	–
826		/**
827		* lower returns preceding element
828		*/
#	Line 844 | Line 839 | public class ConcurrentSkipListSubSetTes
839
840		Object e4 = q.lower(zero);
841		assertNull(e4);
847	–
842		}
843
844		/**
#	Line 863 | Line 857 | public class ConcurrentSkipListSubSetTes
857
858		Object e4 = q.higher(m6);
859		assertNull(e4);
866	–
860		}
861
862		/**
#	Line 882 | Line 875 | public class ConcurrentSkipListSubSetTes
875
876		Object e4 = q.floor(zero);
877		assertNull(e4);
885	–
878		}
879
880		/**
#	Line 901 | Line 893 | public class ConcurrentSkipListSubSetTes
893
894		Object e4 = q.ceiling(m6);
895		assertNull(e4);
904	–
896		}
897
898		/**
#	Line 921 | Line 912 | public class ConcurrentSkipListSubSetTes
912		public void testDescendingToArray2() {
913		NavigableSet q = populatedSet(SIZE);
914		Integer[] ints = new Integer[SIZE];
915	<	ints = (Integer[])q.toArray(ints);
915	>	assertSame(ints, q.toArray(ints));
916		Arrays.sort(ints);
917		for (int i = 0; i < ints.length; i++)
918		assertEquals(ints[i], q.pollFirst());
#	Line 952 | Line 943 | public class ConcurrentSkipListSubSetTes
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 974 | Line 965 | public class ConcurrentSkipListSubSetTes
965		assertFalse(it.hasNext());
966		}
967
977	–
968		/**
969		* toString contains toStrings of elements
970		*/
#	Line 982 | 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		}
978
979		/**
980	<	* A deserialized serialized set has same elements
980	>	* A deserialized/reserialized set equals original
981		*/
982		public void testDescendingSerialization() throws Exception {
983	<	NavigableSet q = populatedSet(SIZE);
984	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
985	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
986	<	out.writeObject(q);
987	<	out.close();
988	<
989	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
990	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
991	<	NavigableSet r = (NavigableSet)in.readObject();
992	<	assertEquals(q.size(), r.size());
993	<	while (!q.isEmpty())
994	<	assertEquals(q.pollFirst(), r.pollFirst());
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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