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Comparing jsr166/src/test/tck/ConcurrentSkipListSubSetTest.java (file contents):
Revision 1.12 by jsr166, Tue Dec 1 09:48:13 2009 UTC vs.
Revision 1.36 by jsr166, Sat Mar 11 18:20:46 2017 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 =
37	>	new ConcurrentSkipListSet<Integer>();
38		assertTrue(q.isEmpty());
39
40	<	for (int i = n-1; i >= 0; i-=2)
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)
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)));
#	Line 44 | Line 50 | public class ConcurrentSkipListSubSetTes
50		}
51
52		/**
53	<	* Create set of first 5 ints
53	>	* Returns a new set of first 5 ints.
54		*/
55	<	private NavigableSet set5() {
55	>	private static NavigableSet set5() {
56		ConcurrentSkipListSet q = new ConcurrentSkipListSet();
57		assertTrue(q.isEmpty());
58		q.add(one);
#	Line 62 | Line 68 | public class ConcurrentSkipListSubSetTes
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() {
73	>	private static NavigableSet dset5() {
74		ConcurrentSkipListSet q = new ConcurrentSkipListSet();
75		assertTrue(q.isEmpty());
76		q.add(m1);
#	Line 96 | Line 102 | public class ConcurrentSkipListSubSetTes
102		assertEquals(0, set0().size());
103		}
104
99	–
105		/**
106		* isEmpty is true before add, false after
107		*/
#	Line 117 | Line 122 | public class ConcurrentSkipListSubSetTes
122		public void testSize() {
123		NavigableSet q = populatedSet(SIZE);
124		for (int i = 0; i < SIZE; ++i) {
125	<	assertEquals(SIZE-i, q.size());
125	>	assertEquals(SIZE - i, q.size());
126		q.pollFirst();
127		}
128		for (int i = 0; i < SIZE; ++i) {
#	Line 130 | Line 135 | public class ConcurrentSkipListSubSetTes
135		* add(null) throws NPE
136		*/
137		public void testAddNull() {
138	+	NavigableSet q = set0();
139		try {
134	–	NavigableSet q = set0();
140		q.add(null);
141		shouldThrow();
142		} catch (NullPointerException success) {}
#	Line 158 | Line 163 | public class ConcurrentSkipListSubSetTes
163		* Add of non-Comparable throws CCE
164		*/
165		public void testAddNonComparable() {
166	+	NavigableSet q = set0();
167		try {
162	–	NavigableSet q = set0();
163	–	q.add(new Object());
168		q.add(new Object());
169		q.add(new Object());
170		shouldThrow();
171		} catch (ClassCastException success) {}
172		}
173
170	–
174		/**
175		* addAll(null) throws NPE
176		*/
177		public void testAddAll1() {
178	+	NavigableSet q = set0();
179		try {
176	–	NavigableSet q = set0();
180		q.addAll(null);
181		shouldThrow();
182		} catch (NullPointerException success) {}
183		}
184	+
185		/**
186		* addAll of a collection with null elements throws NPE
187		*/
188		public void testAddAll2() {
189	+	NavigableSet q = set0();
190	+	Integer[] ints = new Integer[SIZE];
191		try {
186	–	NavigableSet q = set0();
187	–	Integer[] ints = new Integer[SIZE];
192		q.addAll(Arrays.asList(ints));
193		shouldThrow();
194		} catch (NullPointerException success) {}
195		}
196	+
197		/**
198		* addAll of a collection with any null elements throws NPE after
199		* possibly adding some elements
200		*/
201		public void testAddAll3() {
202	+	NavigableSet q = set0();
203	+	Integer[] ints = new Integer[SIZE];
204	+	for (int i = 0; i < SIZE - 1; ++i)
205	+	ints[i] = new Integer(i + SIZE);
206		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);
207		q.addAll(Arrays.asList(ints));
208		shouldThrow();
209		} catch (NullPointerException success) {}
#	Line 211 | Line 216 | public class ConcurrentSkipListSubSetTes
216		Integer[] empty = new Integer[0];
217		Integer[] ints = new Integer[SIZE];
218		for (int i = 0; i < SIZE; ++i)
219	<	ints[i] = new Integer(SIZE-1- i);
219	>	ints[i] = new Integer(SIZE - 1 - i);
220		NavigableSet q = set0();
221		assertFalse(q.addAll(Arrays.asList(empty)));
222		assertTrue(q.addAll(Arrays.asList(ints)));
#	Line 235 | Line 240 | public class ConcurrentSkipListSubSetTes
240		*/
241		public void testRemoveElement() {
242		NavigableSet q = populatedSet(SIZE);
243	<	for (int i = 1; i < SIZE; i+=2) {
244	<	assertTrue(q.remove(new Integer(i)));
245	<	}
246	<	for (int i = 0; i < SIZE; i+=2) {
247	<	assertTrue(q.remove(new Integer(i)));
248	<	assertFalse(q.remove(new Integer(i+1)));
243	>	for (int i = 1; i < SIZE; i += 2) {
244	>	assertTrue(q.contains(i));
245	>	assertTrue(q.remove(i));
246	>	assertFalse(q.contains(i));
247	>	assertTrue(q.contains(i - 1));
248	>	}
249	>	for (int i = 0; i < SIZE; i += 2) {
250	>	assertTrue(q.contains(i));
251	>	assertTrue(q.remove(i));
252	>	assertFalse(q.contains(i));
253	>	assertFalse(q.remove(i + 1));
254	>	assertFalse(q.contains(i + 1));
255		}
256		assertTrue(q.isEmpty());
257		}
#	Line 299 | Line 310 | public class ConcurrentSkipListSubSetTes
310		assertTrue(changed);
311
312		assertTrue(q.containsAll(p));
313	<	assertEquals(SIZE-i, q.size());
313	>	assertEquals(SIZE - i, q.size());
314		p.pollFirst();
315		}
316		}
#	Line 312 | Line 323 | public class ConcurrentSkipListSubSetTes
323		NavigableSet q = populatedSet(SIZE);
324		NavigableSet p = populatedSet(i);
325		assertTrue(q.removeAll(p));
326	<	assertEquals(SIZE-i, q.size());
326	>	assertEquals(SIZE - i, q.size());
327		for (int j = 0; j < i; ++j) {
328	<	Integer I = (Integer)(p.pollFirst());
329	<	assertFalse(q.contains(I));
328	>	Integer x = (Integer)(p.pollFirst());
329	>	assertFalse(q.contains(x));
330		}
331		}
332		}
333
323	–
324	–
334		/**
335		* lower returns preceding element
336		*/
#	Line 395 | Line 404 | public class ConcurrentSkipListSubSetTes
404		}
405
406		/**
407	<	* toArray contains all elements
407	>	* toArray contains all elements in sorted order
408		*/
409		public void testToArray() {
410		NavigableSet q = populatedSet(SIZE);
411		Object[] o = q.toArray();
403	–	Arrays.sort(o);
412		for (int i = 0; i < o.length; i++)
413	<	assertEquals(o[i], q.pollFirst());
413	>	assertSame(o[i], q.pollFirst());
414		}
415
416		/**
417	<	* toArray(a) contains all elements
417	>	* toArray(a) contains all elements in sorted order
418		*/
419		public void testToArray2() {
420	<	NavigableSet q = populatedSet(SIZE);
420	>	NavigableSet<Integer> q = populatedSet(SIZE);
421		Integer[] ints = new Integer[SIZE];
422	<	ints = (Integer[])q.toArray(ints);
423	<	Arrays.sort(ints);
422	>	Integer[] array = q.toArray(ints);
423	>	assertSame(ints, array);
424		for (int i = 0; i < ints.length; i++)
425	<	assertEquals(ints[i], q.pollFirst());
425	>	assertSame(ints[i], q.pollFirst());
426		}
427
428		/**
#	Line 422 | Line 430 | public class ConcurrentSkipListSubSetTes
430		*/
431		public void testIterator() {
432		NavigableSet q = populatedSet(SIZE);
425	–	int i = 0;
433		Iterator it = q.iterator();
434	<	while (it.hasNext()) {
434	>	int i;
435	>	for (i = 0; it.hasNext(); i++)
436		assertTrue(q.contains(it.next()));
429	–	++i;
430	–	}
437		assertEquals(i, SIZE);
438	+	assertIteratorExhausted(it);
439		}
440
441		/**
442		* iterator of empty set has no elements
443		*/
444		public void testEmptyIterator() {
445	<	NavigableSet q = set0();
439	<	int i = 0;
440	<	Iterator it = q.iterator();
441	<	while (it.hasNext()) {
442	<	assertTrue(q.contains(it.next()));
443	<	++i;
444	<	}
445	<	assertEquals(i, 0);
445	>	assertIteratorExhausted(set0().iterator());
446		}
447
448		/**
449		* iterator.remove removes current element
450		*/
451	<	public void testIteratorRemove () {
451	>	public void testIteratorRemove() {
452		final NavigableSet q = set0();
453		q.add(new Integer(2));
454		q.add(new Integer(1));
#	Line 464 | Line 464 | public class ConcurrentSkipListSubSetTes
464		assertFalse(it.hasNext());
465		}
466
467	–
467		/**
468		* toString contains toStrings of elements
469		*/
#	Line 472 | Line 471 | public class ConcurrentSkipListSubSetTes
471		NavigableSet q = populatedSet(SIZE);
472		String s = q.toString();
473		for (int i = 0; i < SIZE; ++i) {
474	<	assertTrue(s.indexOf(String.valueOf(i)) >= 0);
474	>	assertTrue(s.contains(String.valueOf(i)));
475		}
476		}
477
#	Line 480 | Line 479 | public class ConcurrentSkipListSubSetTes
479		* A deserialized serialized set has same elements
480		*/
481		public void testSerialization() throws Exception {
482	<	NavigableSet q = populatedSet(SIZE);
483	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
484	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
485	<	out.writeObject(q);
486	<	out.close();
487	<
488	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
489	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
490	<	NavigableSet r = (NavigableSet)in.readObject();
491	<	assertEquals(q.size(), r.size());
492	<	while (!q.isEmpty())
493	<	assertEquals(q.pollFirst(), r.pollFirst());
482	>	NavigableSet x = populatedSet(SIZE);
483	>	NavigableSet y = serialClone(x);
484	>
485	>	assertNotSame(y, x);
486	>	assertEquals(x.size(), y.size());
487	>	assertEquals(x, y);
488	>	assertEquals(y, x);
489	>	while (!x.isEmpty()) {
490	>	assertFalse(y.isEmpty());
491	>	assertEquals(x.pollFirst(), y.pollFirst());
492	>	}
493	>	assertTrue(y.isEmpty());
494		}
495
496		/**
#	Line 619 | Line 618 | public class ConcurrentSkipListSubSetTes
618		public void testDescendingSize() {
619		NavigableSet q = populatedSet(SIZE);
620		for (int i = 0; i < SIZE; ++i) {
621	<	assertEquals(SIZE-i, q.size());
621	>	assertEquals(SIZE - i, q.size());
622		q.pollFirst();
623		}
624		for (int i = 0; i < SIZE; ++i) {
#	Line 632 | Line 631 | public class ConcurrentSkipListSubSetTes
631		* add(null) throws NPE
632		*/
633		public void testDescendingAddNull() {
634	+	NavigableSet q = dset0();
635		try {
636	–	NavigableSet q = dset0();
636		q.add(null);
637		shouldThrow();
638		} catch (NullPointerException success) {}
#	Line 660 | Line 659 | public class ConcurrentSkipListSubSetTes
659		* Add of non-Comparable throws CCE
660		*/
661		public void testDescendingAddNonComparable() {
662	+	NavigableSet q = dset0();
663		try {
664	–	NavigableSet q = dset0();
665	–	q.add(new Object());
664		q.add(new Object());
665		q.add(new Object());
666		shouldThrow();
667		} catch (ClassCastException success) {}
668		}
669
672	–
670		/**
671		* addAll(null) throws NPE
672		*/
673		public void testDescendingAddAll1() {
674	+	NavigableSet q = dset0();
675		try {
678	–	NavigableSet q = dset0();
676		q.addAll(null);
677		shouldThrow();
678		} catch (NullPointerException success) {}
679		}
680	+
681		/**
682		* addAll of a collection with null elements throws NPE
683		*/
684		public void testDescendingAddAll2() {
685	+	NavigableSet q = dset0();
686	+	Integer[] ints = new Integer[SIZE];
687		try {
688	–	NavigableSet q = dset0();
689	–	Integer[] ints = new Integer[SIZE];
688		q.addAll(Arrays.asList(ints));
689		shouldThrow();
690		} catch (NullPointerException success) {}
691		}
692	+
693		/**
694		* addAll of a collection with any null elements throws NPE after
695		* possibly adding some elements
696		*/
697		public void testDescendingAddAll3() {
698	+	NavigableSet q = dset0();
699	+	Integer[] ints = new Integer[SIZE];
700	+	for (int i = 0; i < SIZE - 1; ++i)
701	+	ints[i] = new Integer(i + SIZE);
702		try {
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);
703		q.addAll(Arrays.asList(ints));
704		shouldThrow();
705		} catch (NullPointerException success) {}
#	Line 713 | Line 712 | public class ConcurrentSkipListSubSetTes
712		Integer[] empty = new Integer[0];
713		Integer[] ints = new Integer[SIZE];
714		for (int i = 0; i < SIZE; ++i)
715	<	ints[i] = new Integer(SIZE-1- i);
715	>	ints[i] = new Integer(SIZE - 1 - i);
716		NavigableSet q = dset0();
717		assertFalse(q.addAll(Arrays.asList(empty)));
718		assertTrue(q.addAll(Arrays.asList(ints)));
#	Line 737 | Line 736 | public class ConcurrentSkipListSubSetTes
736		*/
737		public void testDescendingRemoveElement() {
738		NavigableSet q = populatedSet(SIZE);
739	<	for (int i = 1; i < SIZE; i+=2) {
739	>	for (int i = 1; i < SIZE; i += 2) {
740		assertTrue(q.remove(new Integer(i)));
741		}
742	<	for (int i = 0; i < SIZE; i+=2) {
742	>	for (int i = 0; i < SIZE; i += 2 ) {
743		assertTrue(q.remove(new Integer(i)));
744	<	assertFalse(q.remove(new Integer(i+1)));
744	>	assertFalse(q.remove(new Integer(i + 1)));
745		}
746		assertTrue(q.isEmpty());
747		}
#	Line 801 | Line 800 | public class ConcurrentSkipListSubSetTes
800		assertTrue(changed);
801
802		assertTrue(q.containsAll(p));
803	<	assertEquals(SIZE-i, q.size());
803	>	assertEquals(SIZE - i, q.size());
804		p.pollFirst();
805		}
806		}
#	Line 814 | Line 813 | public class ConcurrentSkipListSubSetTes
813		NavigableSet q = populatedSet(SIZE);
814		NavigableSet p = populatedSet(i);
815		assertTrue(q.removeAll(p));
816	<	assertEquals(SIZE-i, q.size());
816	>	assertEquals(SIZE - i, q.size());
817		for (int j = 0; j < i; ++j) {
818	<	Integer I = (Integer)(p.pollFirst());
819	<	assertFalse(q.contains(I));
818	>	Integer x = (Integer)(p.pollFirst());
819	>	assertFalse(q.contains(x));
820		}
821		}
822		}
823
825	–
826	–
824		/**
825		* lower returns preceding element
826		*/
#	Line 913 | Line 910 | public class ConcurrentSkipListSubSetTes
910		public void testDescendingToArray2() {
911		NavigableSet q = populatedSet(SIZE);
912		Integer[] ints = new Integer[SIZE];
913	<	ints = (Integer[])q.toArray(ints);
913	>	assertSame(ints, q.toArray(ints));
914		Arrays.sort(ints);
915		for (int i = 0; i < ints.length; i++)
916		assertEquals(ints[i], q.pollFirst());
#	Line 944 | Line 941 | public class ConcurrentSkipListSubSetTes
941		assertTrue(q.contains(it.next()));
942		++i;
943		}
944	<	assertEquals(i, 0);
944	>	assertEquals(0, i);
945		}
946
947		/**
948		* iterator.remove removes current element
949		*/
950	<	public void testDescendingIteratorRemove () {
950	>	public void testDescendingIteratorRemove() {
951		final NavigableSet q = dset0();
952		q.add(new Integer(2));
953		q.add(new Integer(1));
#	Line 966 | Line 963 | public class ConcurrentSkipListSubSetTes
963		assertFalse(it.hasNext());
964		}
965
969	–
966		/**
967		* toString contains toStrings of elements
968		*/
#	Line 974 | Line 970 | public class ConcurrentSkipListSubSetTes
970		NavigableSet q = populatedSet(SIZE);
971		String s = q.toString();
972		for (int i = 0; i < SIZE; ++i) {
973	<	assertTrue(s.indexOf(String.valueOf(i)) >= 0);
973	>	assertTrue(s.contains(String.valueOf(i)));
974		}
975		}
976
#	Line 982 | Line 978 | public class ConcurrentSkipListSubSetTes
978		* A deserialized serialized set has same elements
979		*/
980		public void testDescendingSerialization() throws Exception {
981	<	NavigableSet q = populatedSet(SIZE);
982	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
983	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
984	<	out.writeObject(q);
985	<	out.close();
986	<
987	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
988	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
989	<	NavigableSet r = (NavigableSet)in.readObject();
990	<	assertEquals(q.size(), r.size());
991	<	while (!q.isEmpty())
992	<	assertEquals(q.pollFirst(), r.pollFirst());
981	>	NavigableSet x = dset5();
982	>	NavigableSet y = serialClone(x);
983	>
984	>	assertNotSame(y, x);
985	>	assertEquals(x.size(), y.size());
986	>	assertEquals(x, y);
987	>	assertEquals(y, x);
988	>	while (!x.isEmpty()) {
989	>	assertFalse(y.isEmpty());
990	>	assertEquals(x.pollFirst(), y.pollFirst());
991	>	}
992	>	assertTrue(y.isEmpty());
993		}
994
995		/**

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