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Comparing jsr166/src/test/tck/TreeSetTest.java (file contents):
Revision 1.5 by jsr166, Mon Nov 16 04:57:10 2009 UTC vs.
Revision 1.48 by jsr166, Mon May 28 21:51:44 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.BitSet;
9	>	import java.util.Collection;
10	>	import java.util.Comparator;
11	>	import java.util.Iterator;
12	>	import java.util.NavigableSet;
13	>	import java.util.NoSuchElementException;
14	>	import java.util.Random;
15	>	import java.util.Set;
16	>	import java.util.SortedSet;
17	>	import java.util.TreeSet;
18	>
19	>	import junit.framework.Test;
20	>	import junit.framework.TestSuite;
21
22		public class TreeSetTest extends JSR166TestCase {
23		public static void main(String[] args) {
24	<	junit.textui.TestRunner.run (suite());
24	>	main(suite(), args);
25		}
26		public static Test suite() {
27	<	return new TestSuite(TreeSetTest.class);
27	>	return new TestSuite(TreeSetTest.class);
28		}
29
30		static class MyReverseComparator implements Comparator {
31		public int compare(Object x, Object y) {
32	<	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;
32	>	return ((Comparable)y).compareTo(x);
33		}
34		}
35
#	Line 33 | Line 39 | public class TreeSetTest extends JSR166T
39		static final int SIZE = 20;
40
41		/**
42	<	* Create a set of given size containing consecutive
43	<	* Integers 0 ... n.
42	>	* Returns a new set of given size containing consecutive
43	>	* Integers 0 ... n - 1.
44		*/
45	<	private TreeSet populatedSet(int n) {
46	<	TreeSet q = new TreeSet();
45	>	private static TreeSet<Integer> populatedSet(int n) {
46	>	TreeSet<Integer> q = new TreeSet<>();
47		assertTrue(q.isEmpty());
48	<	for (int i = n-1; i >= 0; i-=2)
49	<	assertTrue(q.add(new Integer(i)));
50	<	for (int i = (n & 1); i < n; i+=2)
51	<	assertTrue(q.add(new Integer(i)));
48	>	for (int i = n - 1; i >= 0; i -= 2)
49	>	assertTrue(q.add(new Integer(i)));
50	>	for (int i = (n & 1); i < n; i += 2)
51	>	assertTrue(q.add(new Integer(i)));
52		assertFalse(q.isEmpty());
53	<	assertEquals(n, q.size());
53	>	assertEquals(n, q.size());
54		return q;
55		}
56
57		/**
58	<	* Create set of first 5 ints
58	>	* Returns a new set of first 5 ints.
59		*/
60	<	private TreeSet set5() {
60	>	private static TreeSet set5() {
61		TreeSet q = new TreeSet();
62		assertTrue(q.isEmpty());
63		q.add(one);
#	Line 59 | Line 65 | public class TreeSetTest extends JSR166T
65		q.add(three);
66		q.add(four);
67		q.add(five);
68	<	assertEquals(5, q.size());
68	>	assertEquals(5, q.size());
69		return q;
70		}
71
#	Line 75 | Line 81 | public class TreeSetTest extends JSR166T
81		*/
82		public void testConstructor3() {
83		try {
84	<	TreeSet q = new TreeSet((Collection)null);
84	>	new TreeSet((Collection)null);
85		shouldThrow();
86	<	}
81	<	catch (NullPointerException success) {}
86	>	} catch (NullPointerException success) {}
87		}
88
89		/**
#	Line 86 | Line 91 | public class TreeSetTest extends JSR166T
91		*/
92		public void testConstructor4() {
93		try {
94	<	Integer[] ints = new Integer[SIZE];
90	<	TreeSet q = new TreeSet(Arrays.asList(ints));
94	>	new TreeSet(Arrays.asList(new Integer[SIZE]));
95		shouldThrow();
96	<	}
93	<	catch (NullPointerException success) {}
96	>	} catch (NullPointerException success) {}
97		}
98
99		/**
100		* Initializing from Collection with some null elements throws NPE
101		*/
102		public void testConstructor5() {
103	+	Integer[] ints = new Integer[SIZE];
104	+	for (int i = 0; i < SIZE - 1; ++i)
105	+	ints[i] = new Integer(i);
106		try {
107	<	Integer[] ints = new Integer[SIZE];
102	<	for (int i = 0; i < SIZE-1; ++i)
103	<	ints[i] = new Integer(i);
104	<	TreeSet q = new TreeSet(Arrays.asList(ints));
107	>	new TreeSet(Arrays.asList(ints));
108		shouldThrow();
109	<	}
107	<	catch (NullPointerException success) {}
109	>	} catch (NullPointerException success) {}
110		}
111
112		/**
113		* Set contains all elements of collection used to initialize
114		*/
115		public void testConstructor6() {
116	<	try {
117	<	Integer[] ints = new Integer[SIZE];
118	<	for (int i = 0; i < SIZE; ++i)
119	<	ints[i] = new Integer(i);
120	<	TreeSet q = new TreeSet(Arrays.asList(ints));
121	<	for (int i = 0; i < SIZE; ++i)
120	<	assertEquals(ints[i], q.pollFirst());
121	<	}
122	<	finally {}
116	>	Integer[] ints = new Integer[SIZE];
117	>	for (int i = 0; i < SIZE; ++i)
118	>	ints[i] = new Integer(i);
119	>	TreeSet q = new TreeSet(Arrays.asList(ints));
120	>	for (int i = 0; i < SIZE; ++i)
121	>	assertEquals(ints[i], q.pollFirst());
122		}
123
124		/**
125		* The comparator used in constructor is used
126		*/
127		public void testConstructor7() {
128	<	try {
129	<	MyReverseComparator cmp = new MyReverseComparator();
130	<	TreeSet q = new TreeSet(cmp);
131	<	assertEquals(cmp, q.comparator());
132	<	Integer[] ints = new Integer[SIZE];
133	<	for (int i = 0; i < SIZE; ++i)
134	<	ints[i] = new Integer(i);
135	<	q.addAll(Arrays.asList(ints));
136	<	for (int i = SIZE-1; i >= 0; --i)
138	<	assertEquals(ints[i], q.pollFirst());
139	<	}
140	<	finally {}
128	>	MyReverseComparator cmp = new MyReverseComparator();
129	>	TreeSet q = new TreeSet(cmp);
130	>	assertEquals(cmp, q.comparator());
131	>	Integer[] ints = new Integer[SIZE];
132	>	for (int i = 0; i < SIZE; ++i)
133	>	ints[i] = new Integer(i);
134	>	q.addAll(Arrays.asList(ints));
135	>	for (int i = SIZE - 1; i >= 0; --i)
136	>	assertEquals(ints[i], q.pollFirst());
137		}
138
139		/**
#	Line 160 | Line 156 | public class TreeSetTest extends JSR166T
156		public void testSize() {
157		TreeSet q = populatedSet(SIZE);
158		for (int i = 0; i < SIZE; ++i) {
159	<	assertEquals(SIZE-i, q.size());
159	>	assertEquals(SIZE - i, q.size());
160		q.pollFirst();
161		}
162		for (int i = 0; i < SIZE; ++i) {
#	Line 173 | Line 169 | public class TreeSetTest extends JSR166T
169		* add(null) throws NPE if nonempty
170		*/
171		public void testAddNull() {
172	<	try {
173	<	TreeSet q = populatedSet(SIZE);
172	>	TreeSet q = populatedSet(SIZE);
173	>	try {
174		q.add(null);
175		shouldThrow();
176	<	} catch (NullPointerException success) { }
176	>	} catch (NullPointerException success) {}
177		}
178
179		/**
#	Line 202 | Line 198 | public class TreeSetTest extends JSR166T
198		* Add of non-Comparable throws CCE
199		*/
200		public void testAddNonComparable() {
201	+	TreeSet q = new TreeSet();
202		try {
206	–	TreeSet q = new TreeSet();
207	–	q.add(new Object());
203		q.add(new Object());
204		q.add(new Object());
205		shouldThrow();
206	<	}
212	<	catch (ClassCastException success) {}
206	>	} catch (ClassCastException success) {}
207		}
208
209		/**
210		* addAll(null) throws NPE
211		*/
212		public void testAddAll1() {
213	+	TreeSet q = new TreeSet();
214		try {
220	–	TreeSet q = new TreeSet();
215		q.addAll(null);
216		shouldThrow();
217	<	}
224	<	catch (NullPointerException success) {}
217	>	} catch (NullPointerException success) {}
218		}
219	+
220		/**
221		* addAll of a collection with null elements throws NPE
222		*/
223		public void testAddAll2() {
224	+	TreeSet q = new TreeSet();
225	+	Integer[] ints = new Integer[SIZE];
226		try {
231	–	TreeSet q = new TreeSet();
232	–	Integer[] ints = new Integer[SIZE];
227		q.addAll(Arrays.asList(ints));
228		shouldThrow();
229	<	}
236	<	catch (NullPointerException success) {}
229	>	} catch (NullPointerException success) {}
230		}
231	+
232		/**
233		* addAll of a collection with any null elements throws NPE after
234		* possibly adding some elements
235		*/
236		public void testAddAll3() {
237	+	TreeSet q = new TreeSet();
238	+	Integer[] ints = new Integer[SIZE];
239	+	for (int i = 0; i < SIZE - 1; ++i)
240	+	ints[i] = new Integer(i);
241		try {
244	–	TreeSet q = new TreeSet();
245	–	Integer[] ints = new Integer[SIZE];
246	–	for (int i = 0; i < SIZE-1; ++i)
247	–	ints[i] = new Integer(i);
242		q.addAll(Arrays.asList(ints));
243		shouldThrow();
244	<	}
251	<	catch (NullPointerException success) {}
244	>	} catch (NullPointerException success) {}
245		}
246
247		/**
248		* Set contains all elements of successful addAll
249		*/
250		public void testAddAll5() {
251	<	try {
252	<	Integer[] empty = new Integer[0];
253	<	Integer[] ints = new Integer[SIZE];
254	<	for (int i = 0; i < SIZE; ++i)
255	<	ints[i] = new Integer(SIZE-1-i);
256	<	TreeSet q = new TreeSet();
257	<	assertFalse(q.addAll(Arrays.asList(empty)));
258	<	assertTrue(q.addAll(Arrays.asList(ints)));
259	<	for (int i = 0; i < SIZE; ++i)
267	<	assertEquals(new Integer(i), q.pollFirst());
268	<	}
269	<	finally {}
251	>	Integer[] empty = new Integer[0];
252	>	Integer[] ints = new Integer[SIZE];
253	>	for (int i = 0; i < SIZE; ++i)
254	>	ints[i] = new Integer(SIZE - 1 - i);
255	>	TreeSet q = new TreeSet();
256	>	assertFalse(q.addAll(Arrays.asList(empty)));
257	>	assertTrue(q.addAll(Arrays.asList(ints)));
258	>	for (int i = 0; i < SIZE; ++i)
259	>	assertEquals(new Integer(i), q.pollFirst());
260		}
261
262		/**
#	Line 275 | Line 265 | public class TreeSetTest extends JSR166T
265		public void testPollFirst() {
266		TreeSet q = populatedSet(SIZE);
267		for (int i = 0; i < SIZE; ++i) {
268	<	assertEquals(i, ((Integer)q.pollFirst()).intValue());
268	>	assertEquals(i, q.pollFirst());
269		}
270	<	assertNull(q.pollFirst());
270	>	assertNull(q.pollFirst());
271		}
272
273		/**
#	Line 285 | Line 275 | public class TreeSetTest extends JSR166T
275		*/
276		public void testPollLast() {
277		TreeSet q = populatedSet(SIZE);
278	<	for (int i = SIZE-1; i >= 0; --i) {
279	<	assertEquals(i, ((Integer)q.pollLast()).intValue());
278	>	for (int i = SIZE - 1; i >= 0; --i) {
279	>	assertEquals(i, q.pollLast());
280		}
281	<	assertNull(q.pollFirst());
281	>	assertNull(q.pollFirst());
282		}
283
294	–
284		/**
285		* remove(x) removes x and returns true if present
286		*/
287		public void testRemoveElement() {
288		TreeSet q = populatedSet(SIZE);
289	<	for (int i = 1; i < SIZE; i+=2) {
290	<	assertTrue(q.remove(new Integer(i)));
291	<	}
292	<	for (int i = 0; i < SIZE; i+=2) {
293	<	assertTrue(q.remove(new Integer(i)));
294	<	assertFalse(q.remove(new Integer(i+1)));
289	>	for (int i = 1; i < SIZE; i += 2) {
290	>	assertTrue(q.contains(i));
291	>	assertTrue(q.remove(i));
292	>	assertFalse(q.contains(i));
293	>	assertTrue(q.contains(i - 1));
294	>	}
295	>	for (int i = 0; i < SIZE; i += 2) {
296	>	assertTrue(q.contains(i));
297	>	assertTrue(q.remove(i));
298	>	assertFalse(q.contains(i));
299	>	assertFalse(q.remove(i + 1));
300	>	assertFalse(q.contains(i + 1));
301		}
302		assertTrue(q.isEmpty());
303		}
#	Line 361 | Line 356 | public class TreeSetTest extends JSR166T
356		assertTrue(changed);
357
358		assertTrue(q.containsAll(p));
359	<	assertEquals(SIZE-i, q.size());
359	>	assertEquals(SIZE - i, q.size());
360		p.pollFirst();
361		}
362		}
#	Line 374 | Line 369 | public class TreeSetTest extends JSR166T
369		TreeSet q = populatedSet(SIZE);
370		TreeSet p = populatedSet(i);
371		assertTrue(q.removeAll(p));
372	<	assertEquals(SIZE-i, q.size());
372	>	assertEquals(SIZE - i, q.size());
373		for (int j = 0; j < i; ++j) {
374	<	Integer I = (Integer)(p.pollFirst());
375	<	assertFalse(q.contains(I));
374	>	Integer x = (Integer)(p.pollFirst());
375	>	assertFalse(q.contains(x));
376		}
377		}
378		}
379
385	–
386	–
380		/**
381		* lower returns preceding element
382		*/
#	Line 400 | Line 393 | public class TreeSetTest extends JSR166T
393
394		Object e4 = q.lower(zero);
395		assertNull(e4);
403	–
396		}
397
398		/**
#	Line 419 | Line 411 | public class TreeSetTest extends JSR166T
411
412		Object e4 = q.higher(six);
413		assertNull(e4);
422	–
414		}
415
416		/**
#	Line 438 | Line 429 | public class TreeSetTest extends JSR166T
429
430		Object e4 = q.floor(zero);
431		assertNull(e4);
441	–
432		}
433
434		/**
#	Line 457 | Line 447 | public class TreeSetTest extends JSR166T
447
448		Object e4 = q.ceiling(six);
449		assertNull(e4);
460	–
450		}
451
452		/**
453	<	* toArray contains all elements
453	>	* toArray contains all elements in sorted order
454		*/
455		public void testToArray() {
456		TreeSet q = populatedSet(SIZE);
457	<	Object[] o = q.toArray();
458	<	Arrays.sort(o);
459	<	for (int i = 0; i < o.length; i++)
460	<	assertEquals(o[i], q.pollFirst());
457	>	Object[] a = q.toArray();
458	>	assertSame(Object[].class, a.getClass());
459	>	for (Object o : a)
460	>	assertSame(o, q.pollFirst());
461	>	assertTrue(q.isEmpty());
462		}
463
464		/**
465	<	* toArray(a) contains all elements
465	>	* toArray(a) contains all elements in sorted order
466		*/
467		public void testToArray2() {
468	<	TreeSet q = populatedSet(SIZE);
469	<	Integer[] ints = new Integer[SIZE];
470	<	ints = (Integer[])q.toArray(ints);
471	<	Arrays.sort(ints);
472	<	for (int i = 0; i < ints.length; i++)
473	<	assertEquals(ints[i], q.pollFirst());
468	>	TreeSet<Integer> q = populatedSet(SIZE);
469	>	Integer[] ints = new Integer[SIZE];
470	>	Integer[] array = q.toArray(ints);
471	>	assertSame(ints, array);
472	>	for (Integer o : ints)
473	>	assertSame(o, q.pollFirst());
474	>	assertTrue(q.isEmpty());
475		}
476
477		/**
#	Line 488 | Line 479 | public class TreeSetTest extends JSR166T
479		*/
480		public void testIterator() {
481		TreeSet q = populatedSet(SIZE);
482	<	int i = 0;
483	<	Iterator it = q.iterator();
484	<	while (it.hasNext()) {
482	>	Iterator it = q.iterator();
483	>	int i;
484	>	for (i = 0; it.hasNext(); i++)
485		assertTrue(q.contains(it.next()));
495	–	++i;
496	–	}
486		assertEquals(i, SIZE);
487	+	assertIteratorExhausted(it);
488		}
489
490		/**
491		* iterator of empty set has no elements
492		*/
493		public void testEmptyIterator() {
494	<	TreeSet q = new TreeSet();
505	<	int i = 0;
506	<	Iterator it = q.iterator();
507	<	while (it.hasNext()) {
508	<	assertTrue(q.contains(it.next()));
509	<	++i;
510	<	}
511	<	assertEquals(i, 0);
494	>	assertIteratorExhausted(new TreeSet().iterator());
495		}
496
497		/**
498		* iterator.remove removes current element
499		*/
500	<	public void testIteratorRemove () {
500	>	public void testIteratorRemove() {
501		final TreeSet q = new TreeSet();
502		q.add(new Integer(2));
503		q.add(new Integer(1));
#	Line 530 | Line 513 | public class TreeSetTest extends JSR166T
513		assertFalse(it.hasNext());
514		}
515
533	–
516		/**
517		* toString contains toStrings of elements
518		*/
#	Line 538 | Line 520 | public class TreeSetTest extends JSR166T
520		TreeSet q = populatedSet(SIZE);
521		String s = q.toString();
522		for (int i = 0; i < SIZE; ++i) {
523	<	assertTrue(s.indexOf(String.valueOf(i)) >= 0);
523	>	assertTrue(s.contains(String.valueOf(i)));
524		}
525		}
526
527		/**
528	<	* A deserialized serialized set has same elements
528	>	* A deserialized/reserialized set equals original
529		*/
530	<	public void testSerialization() {
531	<	TreeSet q = populatedSet(SIZE);
532	<	try {
533	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
534	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
535	<	out.writeObject(q);
536	<	out.close();
537	<
538	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
539	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
540	<	TreeSet r = (TreeSet)in.readObject();
559	<	assertEquals(q.size(), r.size());
560	<	while (!q.isEmpty())
561	<	assertEquals(q.pollFirst(), r.pollFirst());
562	<	} catch (Exception e){
563	<	e.printStackTrace();
564	<	unexpectedException();
530	>	public void testSerialization() throws Exception {
531	>	NavigableSet x = populatedSet(SIZE);
532	>	NavigableSet y = serialClone(x);
533	>
534	>	assertNotSame(x, y);
535	>	assertEquals(x.size(), y.size());
536	>	assertEquals(x, y);
537	>	assertEquals(y, x);
538	>	while (!x.isEmpty()) {
539	>	assertFalse(y.isEmpty());
540	>	assertEquals(x.pollFirst(), y.pollFirst());
541		}
542	+	assertTrue(y.isEmpty());
543		}
544
545		/**
#	Line 690 | Line 667 | public class TreeSetTest extends JSR166T
667		/**
668		* Subsets of subsets subdivide correctly
669		*/
670	<	public void testRecursiveSubSets() {
671	<	int setSize = 1000;
672	<	Class cl = TreeSet.class;
670	>	public void testRecursiveSubSets() throws Exception {
671	>	int setSize = expensiveTests ? 1000 : 100;
672	>	Class cl = TreeSet.class;
673
674		NavigableSet<Integer> set = newSet(cl);
675		bs = new BitSet(setSize);
#	Line 709 | Line 686 | public class TreeSetTest extends JSR166T
686		0, setSize - 1, true);
687		}
688
689	<	static NavigableSet<Integer> newSet(Class cl) {
690	<	NavigableSet<Integer> result = null;
691	<	try {
692	<	result = (NavigableSet<Integer>) cl.newInstance();
693	<	} catch (Exception e) {
694	<	fail();
695	<	}
696	<	assertEquals(result.size(), 0);
689	>	/**
690	>	* addAll is idempotent
691	>	*/
692	>	public void testAddAll_idempotent() throws Exception {
693	>	Set x = populatedSet(SIZE);
694	>	Set y = new TreeSet(x);
695	>	y.addAll(x);
696	>	assertEquals(x, y);
697	>	assertEquals(y, x);
698	>	}
699	>
700	>	static NavigableSet<Integer> newSet(Class cl) throws Exception {
701	>	NavigableSet<Integer> result =
702	>	(NavigableSet<Integer>) cl.getConstructor().newInstance();
703	>	assertEquals(0, result.size());
704		assertFalse(result.iterator().hasNext());
705		return result;
706		}
#	Line 748 | Line 732 | public class TreeSetTest extends JSR166T
732		// Add entries till we're back to original size
733		while (set.size() < size) {
734		int element = min + rnd.nextInt(rangeSize);
735	<	assertTrue(element >= min && element<= max);
735	>	assertTrue(element >= min && element <= max);
736		put(set, element);
737		}
738		}
#	Line 773 | Line 757 | public class TreeSetTest extends JSR166T
757		// Add entries till we're back to original size
758		while (set.size() < size) {
759		int element = min - 5 + rnd.nextInt(rangeSize + 10);
760	<	if (element >= min && element<= max) {
760	>	if (element >= min && element <= max) {
761		put(set, element);
762		} else {
763		try {
764		set.add(element);
765	<	fail();
766	<	} catch (IllegalArgumentException e) {
783	<	// expected
784	<	}
765	>	shouldThrow();
766	>	} catch (IllegalArgumentException success) {}
767		}
768		}
769		}
#	Line 879 | Line 861 | public class TreeSetTest extends JSR166T
861		*/
862		void check(NavigableSet<Integer> set,
863		final int min, final int max, final boolean ascending) {
864	<	class ReferenceSet {
864	>	class ReferenceSet {
865		int lower(int element) {
866		return ascending ?
867		lowerAscending(element) : higherAscending(element);
#	Line 914 | Line 896 | public class TreeSetTest extends JSR166T
896		// BitSet should support this! Test would run much faster
897		while (element >= min) {
898		if (bs.get(element))
899	<	return(element);
899	>	return element;
900		element--;
901		}
902		return -1;
#	Line 925 | Line 907 | public class TreeSetTest extends JSR166T
907		else if (element > max)
908		return -1;
909		int result = bs.nextSetBit(element);
910	<	return result > max ? -1 : result;
910	>	return (result > max) ? -1 : result;
911		}
912		int higherAscending(int element) {
913		return ceilingAscending(element + 1);
914		}
915		private int firstAscending() {
916		int result = ceilingAscending(min);
917	<	return result > max ? -1 : result;
917	>	return (result > max) ? -1 : result;
918		}
919		private int lastAscending() {
920		int result = floorAscending(max);
921	<	return result < min ? -1 : result;
921	>	return (result < min) ? -1 : result;
922		}
923		}
924		ReferenceSet rs = new ReferenceSet();
#	Line 949 | Line 931 | public class TreeSetTest extends JSR166T
931		if (bsContainsI)
932		size++;
933		}
934	<	assertEquals(set.size(), size);
934	>	assertEquals(size, set.size());
935
936		// Test contents using contains elementSet iterator
937		int size2 = 0;
#	Line 980 | Line 962 | public class TreeSetTest extends JSR166T
962		assertEq(rs.last(),  -1);
963		try {
964		set.first();
965	<	fail();
966	<	} catch (NoSuchElementException e) {
985	<	// expected
986	<	}
965	>	shouldThrow();
966	>	} catch (NoSuchElementException success) {}
967		try {
968		set.last();
969	<	fail();
970	<	} catch (NoSuchElementException e) {
991	<	// expected
992	<	}
969	>	shouldThrow();
970	>	} catch (NoSuchElementException success) {}
971		}
972		}
973
#	Line 1001 | Line 979 | public class TreeSetTest extends JSR166T
979		}
980
981		static boolean eq(Integer i, int j) {
982	<	return i == null ? j == -1 : i == j;
982	>	return (i == null) ? j == -1 : i == j;
983		}
984
985		}

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