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root/jsr166/jsr166/src/test/tck/CopyOnWriteArrayListTest.java

Comparing jsr166/src/test/tck/CopyOnWriteArrayListTest.java (file contents):
Revision 1.40 by jsr166, Tue Nov 15 00:08:25 2016 UTC vs.
Revision 1.49 by jsr166, Tue Apr 3 05:49:43 2018 UTC

#	Line 9 | Line 9
9		import java.util.ArrayList;
10		import java.util.Arrays;
11		import java.util.Collection;
12	+	import java.util.Collections;
13		import java.util.Iterator;
13	–	import java.util.LinkedList;
14		import java.util.List;
15		import java.util.ListIterator;
16		import java.util.NoSuchElementException;
17		import java.util.concurrent.CopyOnWriteArrayList;
18	+	import java.util.concurrent.ThreadLocalRandom;
19
20		import junit.framework.Test;
20	–	import junit.framework.TestSuite;
21
22		public class CopyOnWriteArrayListTest extends JSR166TestCase {
23
#	Line 27 | Line 27 | public class CopyOnWriteArrayListTest ex
27
28		public static Test suite() {
29		class Implementation implements CollectionImplementation {
30	<	public Class<?> klazz() { return ArrayList.class; }
30	>	public Class<?> klazz() { return CopyOnWriteArrayList.class; }
31		public List emptyCollection() { return new CopyOnWriteArrayList(); }
32		public Object makeElement(int i) { return i; }
33		public boolean isConcurrent() { return true; }
#	Line 35 | Line 35 | public class CopyOnWriteArrayListTest ex
35		}
36		class SubListImplementation extends Implementation {
37		public List emptyCollection() {
38	<	return super.emptyCollection().subList(0, 0);
38	>	List list = super.emptyCollection();
39	>	ThreadLocalRandom rnd = ThreadLocalRandom.current();
40	>	if (rnd.nextBoolean())
41	>	list.add(makeElement(rnd.nextInt()));
42	>	int i = rnd.nextInt(list.size() + 1);
43	>	return list.subList(i, i);
44		}
45		}
46		return newTestSuite(
47		CopyOnWriteArrayListTest.class,
48	<	CollectionTest.testSuite(new Implementation()));
49	<	//CollectionTest.testSuite(new SubListImplementation()));
48	>	CollectionTest.testSuite(new Implementation()),
49	>	CollectionTest.testSuite(new SubListImplementation()));
50		}
51
52	<	static CopyOnWriteArrayList<Integer> populatedArray(int n) {
53	<	CopyOnWriteArrayList<Integer> a = new CopyOnWriteArrayList<Integer>();
54	<	assertTrue(a.isEmpty());
52	>	static CopyOnWriteArrayList<Integer> populatedList(int n) {
53	>	CopyOnWriteArrayList<Integer> list = new CopyOnWriteArrayList<>();
54	>	assertTrue(list.isEmpty());
55		for (int i = 0; i < n; i++)
56	<	a.add(i);
57	<	assertFalse(a.isEmpty());
58	<	assertEquals(n, a.size());
59	<	return a;
56	>	list.add(i);
57	>	assertEquals(n <= 0, list.isEmpty());
58	>	assertEquals(n, list.size());
59	>	return list;
60		}
61
62	<	static CopyOnWriteArrayList<Integer> populatedArray(Integer[] elements) {
63	<	CopyOnWriteArrayList<Integer> a = new CopyOnWriteArrayList<Integer>();
64	<	assertTrue(a.isEmpty());
65	<	for (int i = 0; i < elements.length; i++)
66	<	a.add(elements[i]);
67	<	assertFalse(a.isEmpty());
68	<	assertEquals(elements.length, a.size());
69	<	return a;
62	>	static CopyOnWriteArrayList<Integer> populatedList(Integer[] elements) {
63	>	CopyOnWriteArrayList<Integer> list = new CopyOnWriteArrayList<>();
64	>	assertTrue(list.isEmpty());
65	>	for (Integer element : elements)
66	>	list.add(element);
67	>	assertFalse(list.isEmpty());
68	>	assertEquals(elements.length, list.size());
69	>	return list;
70		}
71
72		/**
73		* a new list is empty
74		*/
75		public void testConstructor() {
76	<	CopyOnWriteArrayList a = new CopyOnWriteArrayList();
77	<	assertTrue(a.isEmpty());
76	>	List list = new CopyOnWriteArrayList();
77	>	assertTrue(list.isEmpty());
78		}
79
80		/**
81		* new list contains all elements of initializing array
82		*/
83		public void testConstructor2() {
84	<	Integer[] ints = new Integer[SIZE];
84	>	Integer[] elts = new Integer[SIZE];
85		for (int i = 0; i < SIZE - 1; ++i)
86	<	ints[i] = new Integer(i);
87	<	CopyOnWriteArrayList a = new CopyOnWriteArrayList(ints);
86	>	elts[i] = i;
87	>	List list = new CopyOnWriteArrayList(elts);
88		for (int i = 0; i < SIZE; ++i)
89	<	assertEquals(ints[i], a.get(i));
89	>	assertEquals(elts[i], list.get(i));
90		}
91
92		/**
93		* new list contains all elements of initializing collection
94		*/
95		public void testConstructor3() {
96	<	Integer[] ints = new Integer[SIZE];
96	>	Integer[] elts = new Integer[SIZE];
97		for (int i = 0; i < SIZE - 1; ++i)
98	<	ints[i] = new Integer(i);
99	<	CopyOnWriteArrayList a = new CopyOnWriteArrayList(Arrays.asList(ints));
98	>	elts[i] = i;
99	>	List list = new CopyOnWriteArrayList(Arrays.asList(elts));
100		for (int i = 0; i < SIZE; ++i)
101	<	assertEquals(ints[i], a.get(i));
101	>	assertEquals(elts[i], list.get(i));
102		}
103
104		/**
105		* addAll adds each element from the given collection, including duplicates
106		*/
107		public void testAddAll() {
108	<	CopyOnWriteArrayList full = populatedArray(3);
109	<	assertTrue(full.addAll(Arrays.asList(three, four, five)));
110	<	assertEquals(6, full.size());
111	<	assertTrue(full.addAll(Arrays.asList(three, four, five)));
112	<	assertEquals(9, full.size());
108	>	List list = populatedList(3);
109	>	assertTrue(list.addAll(Arrays.asList(three, four, five)));
110	>	assertEquals(6, list.size());
111	>	assertTrue(list.addAll(Arrays.asList(three, four, five)));
112	>	assertEquals(9, list.size());
113		}
114
115		/**
#	Line 112 | Line 117 | public class CopyOnWriteArrayListTest ex
117		* already exist in the List
118		*/
119		public void testAddAllAbsent() {
120	<	CopyOnWriteArrayList full = populatedArray(3);
120	>	CopyOnWriteArrayList list = populatedList(3);
121		// "one" is duplicate and will not be added
122	<	assertEquals(2, full.addAllAbsent(Arrays.asList(three, four, one)));
123	<	assertEquals(5, full.size());
124	<	assertEquals(0, full.addAllAbsent(Arrays.asList(three, four, one)));
125	<	assertEquals(5, full.size());
122	>	assertEquals(2, list.addAllAbsent(Arrays.asList(three, four, one)));
123	>	assertEquals(5, list.size());
124	>	assertEquals(0, list.addAllAbsent(Arrays.asList(three, four, one)));
125	>	assertEquals(5, list.size());
126		}
127
128		/**
129		* addIfAbsent will not add the element if it already exists in the list
130		*/
131		public void testAddIfAbsent() {
132	<	CopyOnWriteArrayList full = populatedArray(SIZE);
133	<	full.addIfAbsent(one);
134	<	assertEquals(SIZE, full.size());
132	>	CopyOnWriteArrayList list = populatedList(SIZE);
133	>	list.addIfAbsent(one);
134	>	assertEquals(SIZE, list.size());
135		}
136
137		/**
138		* addIfAbsent adds the element when it does not exist in the list
139		*/
140		public void testAddIfAbsent2() {
141	<	CopyOnWriteArrayList full = populatedArray(SIZE);
142	<	full.addIfAbsent(three);
143	<	assertTrue(full.contains(three));
141	>	CopyOnWriteArrayList list = populatedList(SIZE);
142	>	list.addIfAbsent(three);
143	>	assertTrue(list.contains(three));
144		}
145
146		/**
147		* clear removes all elements from the list
148		*/
149		public void testClear() {
150	<	CopyOnWriteArrayList full = populatedArray(SIZE);
151	<	full.clear();
152	<	assertEquals(0, full.size());
150	>	List list = populatedList(SIZE);
151	>	list.clear();
152	>	assertEquals(0, list.size());
153		}
154
155		/**
156		* Cloned list is equal
157		*/
158		public void testClone() {
159	<	CopyOnWriteArrayList l1 = populatedArray(SIZE);
159	>	CopyOnWriteArrayList l1 = populatedList(SIZE);
160		CopyOnWriteArrayList l2 = (CopyOnWriteArrayList)(l1.clone());
161		assertEquals(l1, l2);
162		l1.clear();
#	Line 162 | Line 167 | public class CopyOnWriteArrayListTest ex
167		* contains is true for added elements
168		*/
169		public void testContains() {
170	<	CopyOnWriteArrayList full = populatedArray(3);
171	<	assertTrue(full.contains(one));
172	<	assertFalse(full.contains(five));
170	>	List list = populatedList(3);
171	>	assertTrue(list.contains(one));
172	>	assertFalse(list.contains(five));
173		}
174
175		/**
176		* adding at an index places it in the indicated index
177		*/
178		public void testAddIndex() {
179	<	CopyOnWriteArrayList full = populatedArray(3);
180	<	full.add(0, m1);
181	<	assertEquals(4, full.size());
182	<	assertEquals(m1, full.get(0));
183	<	assertEquals(zero, full.get(1));
184	<
185	<	full.add(2, m2);
186	<	assertEquals(5, full.size());
187	<	assertEquals(m2, full.get(2));
188	<	assertEquals(two, full.get(4));
179	>	List list = populatedList(3);
180	>	list.add(0, m1);
181	>	assertEquals(4, list.size());
182	>	assertEquals(m1, list.get(0));
183	>	assertEquals(zero, list.get(1));
184	>
185	>	list.add(2, m2);
186	>	assertEquals(5, list.size());
187	>	assertEquals(m2, list.get(2));
188	>	assertEquals(two, list.get(4));
189		}
190
191		/**
192		* lists with same elements are equal and have same hashCode
193		*/
194		public void testEquals() {
195	<	CopyOnWriteArrayList a = populatedArray(3);
196	<	CopyOnWriteArrayList b = populatedArray(3);
195	>	List a = populatedList(3);
196	>	List b = populatedList(3);
197		assertTrue(a.equals(b));
198		assertTrue(b.equals(a));
199		assertTrue(a.containsAll(b));
#	Line 213 | Line 218 | public class CopyOnWriteArrayListTest ex
218		* containsAll returns true for collections with subset of elements
219		*/
220		public void testContainsAll() {
221	<	CopyOnWriteArrayList full = populatedArray(3);
222	<	assertTrue(full.containsAll(Arrays.asList()));
223	<	assertTrue(full.containsAll(Arrays.asList(one)));
224	<	assertTrue(full.containsAll(Arrays.asList(one, two)));
225	<	assertFalse(full.containsAll(Arrays.asList(one, two, six)));
226	<	assertFalse(full.containsAll(Arrays.asList(six)));
221	>	List list = populatedList(3);
222	>	assertTrue(list.containsAll(Arrays.asList()));
223	>	assertTrue(list.containsAll(Arrays.asList(one)));
224	>	assertTrue(list.containsAll(Arrays.asList(one, two)));
225	>	assertFalse(list.containsAll(Arrays.asList(one, two, six)));
226	>	assertFalse(list.containsAll(Arrays.asList(six)));
227
228		try {
229	<	full.containsAll(null);
229	>	list.containsAll(null);
230		shouldThrow();
231		} catch (NullPointerException success) {}
232		}
#	Line 230 | Line 235 | public class CopyOnWriteArrayListTest ex
235		* get returns the value at the given index
236		*/
237		public void testGet() {
238	<	CopyOnWriteArrayList full = populatedArray(3);
239	<	assertEquals(0, full.get(0));
238	>	List list = populatedList(3);
239	>	assertEquals(0, list.get(0));
240		}
241
242		/**
243	<	* indexOf gives the index for the given object
243	>	* indexOf(Object) returns the index of the first occurrence of the
244	>	* specified element in this list, or -1 if this list does not
245	>	* contain the element
246		*/
247		public void testIndexOf() {
248	<	CopyOnWriteArrayList full = populatedArray(3);
249	<	assertEquals(1, full.indexOf(one));
250	<	assertEquals(-1, full.indexOf("puppies"));
248	>	List list = populatedList(3);
249	>	assertEquals(-1, list.indexOf(-42));
250	>	int size = list.size();
251	>	for (int i = 0; i < size; i++) {
252	>	assertEquals(i, list.indexOf(i));
253	>	assertEquals(i, list.subList(0, size).indexOf(i));
254	>	assertEquals(i, list.subList(0, i + 1).indexOf(i));
255	>	assertEquals(-1, list.subList(0, i).indexOf(i));
256	>	assertEquals(0, list.subList(i, size).indexOf(i));
257	>	assertEquals(-1, list.subList(i + 1, size).indexOf(i));
258	>	}
259	>
260	>	list.add(1);
261	>	assertEquals(1, list.indexOf(1));
262	>	assertEquals(1, list.subList(0, size + 1).indexOf(1));
263	>	assertEquals(0, list.subList(1, size + 1).indexOf(1));
264	>	assertEquals(size - 2, list.subList(2, size + 1).indexOf(1));
265	>	assertEquals(0, list.subList(size, size + 1).indexOf(1));
266	>	assertEquals(-1, list.subList(size + 1, size + 1).indexOf(1));
267		}
268
269		/**
270	<	* indexOf gives the index based on the given index
271	<	* at which to start searching
270	>	* indexOf(E, int) returns the index of the first occurrence of the
271	>	* specified element in this list, searching forwards from index,
272	>	* or returns -1 if the element is not found
273		*/
274		public void testIndexOf2() {
275	<	CopyOnWriteArrayList full = populatedArray(3);
276	<	assertEquals(1, full.indexOf(one, 0));
277	<	assertEquals(-1, full.indexOf(one, 2));
275	>	CopyOnWriteArrayList list = populatedList(3);
276	>	int size = list.size();
277	>	assertEquals(-1, list.indexOf(-42, 0));
278	>
279	>	// we might expect IOOBE, but spec says otherwise
280	>	assertEquals(-1, list.indexOf(0, size));
281	>	assertEquals(-1, list.indexOf(0, Integer.MAX_VALUE));
282	>
283	>	assertThrows(
284	>	IndexOutOfBoundsException.class,
285	>	() -> list.indexOf(0, -1),
286	>	() -> list.indexOf(0, Integer.MIN_VALUE));
287	>
288	>	for (int i = 0; i < size; i++) {
289	>	assertEquals(i, list.indexOf(i, 0));
290	>	assertEquals(i, list.indexOf(i, i));
291	>	assertEquals(-1, list.indexOf(i, i + 1));
292	>	}
293	>
294	>	list.add(1);
295	>	assertEquals(1, list.indexOf(1, 0));
296	>	assertEquals(1, list.indexOf(1, 1));
297	>	assertEquals(size, list.indexOf(1, 2));
298	>	assertEquals(size, list.indexOf(1, size));
299		}
300
301		/**
302		* isEmpty returns true when empty, else false
303		*/
304		public void testIsEmpty() {
305	<	CopyOnWriteArrayList empty = new CopyOnWriteArrayList();
261	<	CopyOnWriteArrayList full = populatedArray(SIZE);
305	>	List empty = new CopyOnWriteArrayList();
306		assertTrue(empty.isEmpty());
307	+	assertTrue(empty.subList(0, 0).isEmpty());
308	+
309	+	List full = populatedList(SIZE);
310		assertFalse(full.isEmpty());
311	+	assertTrue(full.subList(0, 0).isEmpty());
312	+	assertTrue(full.subList(SIZE, SIZE).isEmpty());
313		}
314
315		/**
#	Line 279 | Line 328 | public class CopyOnWriteArrayListTest ex
328		for (int i = 0; i < SIZE; i++)
329		elements[i] = i;
330		shuffle(elements);
331	<	Collection<Integer> full = populatedArray(elements);
331	>	Collection<Integer> full = populatedList(elements);
332
333		Iterator it = full.iterator();
334		for (int j = 0; j < SIZE; j++) {
#	Line 301 | Line 350 | public class CopyOnWriteArrayListTest ex
350		* iterator.remove throws UnsupportedOperationException
351		*/
352		public void testIteratorRemove() {
353	<	CopyOnWriteArrayList full = populatedArray(SIZE);
354	<	Iterator it = full.iterator();
353	>	CopyOnWriteArrayList list = populatedList(SIZE);
354	>	Iterator it = list.iterator();
355		it.next();
356		try {
357		it.remove();
#	Line 315 | Line 364 | public class CopyOnWriteArrayListTest ex
364		*/
365		public void testToString() {
366		assertEquals("[]", new CopyOnWriteArrayList().toString());
367	<	CopyOnWriteArrayList full = populatedArray(3);
368	<	String s = full.toString();
367	>	List list = populatedList(3);
368	>	String s = list.toString();
369		for (int i = 0; i < 3; ++i)
370		assertTrue(s.contains(String.valueOf(i)));
371	<	assertEquals(new ArrayList(full).toString(),
372	<	full.toString());
371	>	assertEquals(new ArrayList(list).toString(),
372	>	list.toString());
373		}
374
375		/**
376	<	* lastIndexOf returns the index for the given object
376	>	* lastIndexOf(Object) returns the index of the last occurrence of
377	>	* the specified element in this list, or -1 if this list does not
378	>	* contain the element
379		*/
380		public void testLastIndexOf1() {
381	<	CopyOnWriteArrayList full = populatedArray(3);
382	<	full.add(one);
383	<	full.add(three);
384	<	assertEquals(3, full.lastIndexOf(one));
385	<	assertEquals(-1, full.lastIndexOf(six));
381	>	List list = populatedList(3);
382	>	assertEquals(-1, list.lastIndexOf(-42));
383	>	int size = list.size();
384	>	for (int i = 0; i < size; i++) {
385	>	assertEquals(i, list.lastIndexOf(i));
386	>	assertEquals(i, list.subList(0, size).lastIndexOf(i));
387	>	assertEquals(i, list.subList(0, i + 1).lastIndexOf(i));
388	>	assertEquals(-1, list.subList(0, i).lastIndexOf(i));
389	>	assertEquals(0, list.subList(i, size).lastIndexOf(i));
390	>	assertEquals(-1, list.subList(i + 1, size).lastIndexOf(i));
391	>	}
392	>
393	>	list.add(1);
394	>	assertEquals(size, list.lastIndexOf(1));
395	>	assertEquals(size, list.subList(0, size + 1).lastIndexOf(1));
396	>	assertEquals(1, list.subList(0, size).lastIndexOf(1));
397	>	assertEquals(0, list.subList(1, 2).lastIndexOf(1));
398	>	assertEquals(-1, list.subList(0, 1).indexOf(1));
399		}
400
401		/**
402	<	* lastIndexOf returns the index from the given starting point
402	>	* lastIndexOf(E, int) returns the index of the last occurrence of the
403	>	* specified element in this list, searching backwards from index, or
404	>	* returns -1 if the element is not found
405		*/
406		public void testLastIndexOf2() {
407	<	CopyOnWriteArrayList full = populatedArray(3);
408	<	full.add(one);
409	<	full.add(three);
410	<	assertEquals(3, full.lastIndexOf(one, 4));
411	<	assertEquals(-1, full.lastIndexOf(three, 3));
407	>	CopyOnWriteArrayList list = populatedList(3);
408	>
409	>	// we might expect IOOBE, but spec says otherwise
410	>	assertEquals(-1, list.lastIndexOf(0, -1));
411	>
412	>	int size = list.size();
413	>	assertThrows(
414	>	IndexOutOfBoundsException.class,
415	>	() -> list.lastIndexOf(0, size),
416	>	() -> list.lastIndexOf(0, Integer.MAX_VALUE));
417	>
418	>	for (int i = 0; i < size; i++) {
419	>	assertEquals(i, list.lastIndexOf(i, i));
420	>	assertEquals(list.indexOf(i), list.lastIndexOf(i, i));
421	>	if (i > 0)
422	>	assertEquals(-1, list.lastIndexOf(i, i - 1));
423	>	}
424	>	list.add(one);
425	>	list.add(three);
426	>	assertEquals(1, list.lastIndexOf(one, 1));
427	>	assertEquals(1, list.lastIndexOf(one, 2));
428	>	assertEquals(3, list.lastIndexOf(one, 3));
429	>	assertEquals(3, list.lastIndexOf(one, 4));
430	>	assertEquals(-1, list.lastIndexOf(three, 3));
431		}
432
433		/**
434		* listIterator traverses all elements
435		*/
436		public void testListIterator1() {
437	<	CopyOnWriteArrayList full = populatedArray(SIZE);
438	<	ListIterator i = full.listIterator();
437	>	List list = populatedList(SIZE);
438	>	ListIterator i = list.listIterator();
439		int j;
440		for (j = 0; i.hasNext(); j++)
441		assertEquals(j, i.next());
#	Line 361 | Line 446 | public class CopyOnWriteArrayListTest ex
446		* listIterator only returns those elements after the given index
447		*/
448		public void testListIterator2() {
449	<	CopyOnWriteArrayList full = populatedArray(3);
450	<	ListIterator i = full.listIterator(1);
449	>	List list = populatedList(3);
450	>	ListIterator i = list.listIterator(1);
451		int j;
452		for (j = 0; i.hasNext(); j++)
453		assertEquals(j + 1, i.next());
#	Line 375 | Line 460 | public class CopyOnWriteArrayListTest ex
460		public void testRemove_int() {
461		int SIZE = 3;
462		for (int i = 0; i < SIZE; i++) {
463	<	CopyOnWriteArrayList full = populatedArray(SIZE);
464	<	assertEquals(i, full.remove(i));
465	<	assertEquals(SIZE - 1, full.size());
466	<	assertFalse(full.contains(new Integer(i)));
463	>	List list = populatedList(SIZE);
464	>	assertEquals(i, list.remove(i));
465	>	assertEquals(SIZE - 1, list.size());
466	>	assertFalse(list.contains(new Integer(i)));
467		}
468		}
469
#	Line 388 | Line 473 | public class CopyOnWriteArrayListTest ex
473		public void testRemove_Object() {
474		int SIZE = 3;
475		for (int i = 0; i < SIZE; i++) {
476	<	CopyOnWriteArrayList full = populatedArray(SIZE);
477	<	assertFalse(full.remove(new Integer(-42)));
478	<	assertTrue(full.remove(new Integer(i)));
479	<	assertEquals(SIZE - 1, full.size());
480	<	assertFalse(full.contains(new Integer(i)));
476	>	List list = populatedList(SIZE);
477	>	assertFalse(list.remove(new Integer(-42)));
478	>	assertTrue(list.remove(new Integer(i)));
479	>	assertEquals(SIZE - 1, list.size());
480	>	assertFalse(list.contains(new Integer(i)));
481		}
482		CopyOnWriteArrayList x = new CopyOnWriteArrayList(Arrays.asList(4, 5, 6));
483		assertTrue(x.remove(new Integer(6)));
#	Line 408 | Line 493 | public class CopyOnWriteArrayListTest ex
493		* removeAll removes all elements from the given collection
494		*/
495		public void testRemoveAll() {
496	<	CopyOnWriteArrayList full = populatedArray(3);
497	<	assertTrue(full.removeAll(Arrays.asList(one, two)));
498	<	assertEquals(1, full.size());
499	<	assertFalse(full.removeAll(Arrays.asList(one, two)));
500	<	assertEquals(1, full.size());
496	>	List list = populatedList(3);
497	>	assertTrue(list.removeAll(Arrays.asList(one, two)));
498	>	assertEquals(1, list.size());
499	>	assertFalse(list.removeAll(Arrays.asList(one, two)));
500	>	assertEquals(1, list.size());
501		}
502
503		/**
504		* set changes the element at the given index
505		*/
506		public void testSet() {
507	<	CopyOnWriteArrayList full = populatedArray(3);
508	<	assertEquals(2, full.set(2, four));
509	<	assertEquals(4, full.get(2));
507	>	List list = populatedList(3);
508	>	assertEquals(2, list.set(2, four));
509	>	assertEquals(4, list.get(2));
510		}
511
512		/**
513		* size returns the number of elements
514		*/
515		public void testSize() {
516	<	CopyOnWriteArrayList empty = new CopyOnWriteArrayList();
432	<	CopyOnWriteArrayList full = populatedArray(SIZE);
433	<	assertEquals(SIZE, full.size());
516	>	List empty = new CopyOnWriteArrayList();
517		assertEquals(0, empty.size());
518	+	assertEquals(0, empty.subList(0, 0).size());
519	+
520	+	List full = populatedList(SIZE);
521	+	assertEquals(SIZE, full.size());
522	+	assertEquals(0, full.subList(0, 0).size());
523	+	assertEquals(0, full.subList(SIZE, SIZE).size());
524		}
525
526		/**
#	Line 447 | Line 536 | public class CopyOnWriteArrayListTest ex
536		for (int i = 0; i < SIZE; i++)
537		elements[i] = i;
538		shuffle(elements);
539	<	Collection<Integer> full = populatedArray(elements);
539	>	Collection<Integer> full = populatedList(elements);
540
541		assertTrue(Arrays.equals(elements, full.toArray()));
542		assertSame(Object[].class, full.toArray().getClass());
#	Line 475 | Line 564 | public class CopyOnWriteArrayListTest ex
564		for (int i = 0; i < SIZE; i++)
565		elements[i] = i;
566		shuffle(elements);
567	<	Collection<Integer> full = populatedArray(elements);
567	>	Collection<Integer> full = populatedList(elements);
568
569		Arrays.fill(a, 42);
570		assertTrue(Arrays.equals(elements, full.toArray(a)));
#	Line 501 | Line 590 | public class CopyOnWriteArrayListTest ex
590		* sublists contains elements at indexes offset from their base
591		*/
592		public void testSubList() {
593	<	CopyOnWriteArrayList a = populatedArray(10);
593	>	List a = populatedList(10);
594		assertTrue(a.subList(1,1).isEmpty());
595		for (int j = 0; j < 9; ++j) {
596		for (int i = j ; i < 10; ++i) {
#	Line 518 | Line 607 | public class CopyOnWriteArrayListTest ex
607		assertEquals(a.get(4), m1);
608		s.clear();
609		assertEquals(7, a.size());
610	+
611	+	assertThrows(
612	+	IndexOutOfBoundsException.class,
613	+	() -> s.get(0),
614	+	() -> s.set(0, 42));
615		}
616
617		// Exception tests
#	Line 527 | Line 621 | public class CopyOnWriteArrayListTest ex
621		* can not store the objects inside the list
622		*/
623		public void testToArray_ArrayStoreException() {
624	<	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
625	<	c.add("zfasdfsdf");
626	<	c.add("asdadasd");
627	<	try {
628	<	c.toArray(new Long[5]);
629	<	shouldThrow();
630	<	} catch (ArrayStoreException success) {}
631	<	}
632	<
633	<	/**
634	<	* get throws an IndexOutOfBoundsException on a negative index
635	<	*/
636	<	public void testGet1_IndexOutOfBoundsException() {
637	<	CopyOnWriteArrayList c = populatedArray(5);
638	<	List[] lists = { c, c.subList(1, c.size() - 1) };
639	<	for (List list : lists) {
640	<	try {
641	<	list.get(-1);
642	<	shouldThrow();
643	<	} catch (IndexOutOfBoundsException success) {}
644	<	}
645	<	}
646	<
647	<	/**
648	<	* get throws an IndexOutOfBoundsException on a too high index
649	<	*/
650	<	public void testGet2_IndexOutOfBoundsException() {
651	<	CopyOnWriteArrayList c = populatedArray(5);
652	<	List[] lists = { c, c.subList(1, c.size() - 1) };
653	<	for (List list : lists) {
654	<	try {
655	<	list.get(list.size());
656	<	shouldThrow();
657	<	} catch (IndexOutOfBoundsException success) {}
658	<	}
624	>	List list = new CopyOnWriteArrayList();
625	>	// Integers are not auto-converted to Longs
626	>	list.add(86);
627	>	list.add(99);
628	>	assertThrows(
629	>	ArrayStoreException.class,
630	>	() -> list.toArray(new Long[0]),
631	>	() -> list.toArray(new Long[5]));
632	>	}
633	>
634	>	void testIndexOutOfBoundsException(List list) {
635	>	int size = list.size();
636	>	assertThrows(
637	>	IndexOutOfBoundsException.class,
638	>	() -> list.get(-1),
639	>	() -> list.get(size),
640	>	() -> list.set(-1, "qwerty"),
641	>	() -> list.set(size, "qwerty"),
642	>	() -> list.add(-1, "qwerty"),
643	>	() -> list.add(size + 1, "qwerty"),
644	>	() -> list.remove(-1),
645	>	() -> list.remove(size),
646	>	() -> list.addAll(-1, Collections.emptyList()),
647	>	() -> list.addAll(size + 1, Collections.emptyList()),
648	>	() -> list.listIterator(-1),
649	>	() -> list.listIterator(size + 1),
650	>	() -> list.subList(-1, size),
651	>	() -> list.subList(0, size + 1));
652	>
653	>	// Conversely, operations that must not throw
654	>	list.addAll(0, Collections.emptyList());
655	>	list.addAll(size, Collections.emptyList());
656	>	list.add(0, "qwerty");
657	>	list.add(list.size(), "qwerty");
658	>	list.get(0);
659	>	list.get(list.size() - 1);
660	>	list.set(0, "azerty");
661	>	list.set(list.size() - 1, "azerty");
662	>	list.listIterator(0);
663	>	list.listIterator(list.size());
664	>	list.subList(0, list.size());
665	>	list.remove(list.size() - 1);
666		}
667
668		/**
669	<	* set throws an IndexOutOfBoundsException on a negative index
670	<	*/
671	<	public void testSet1_IndexOutOfBoundsException() {
672	<	CopyOnWriteArrayList c = populatedArray(5);
673	<	List[] lists = { c, c.subList(1, c.size() - 1) };
674	<	for (List list : lists) {
675	<	try {
676	<	list.set(-1, "qwerty");
677	<	shouldThrow();
678	<	} catch (IndexOutOfBoundsException success) {}
679	<	}
680	<	}
681	<
682	<	/**
582	<	* set throws an IndexOutOfBoundsException on a too high index
583	<	*/
584	<	public void testSet2() {
585	<	CopyOnWriteArrayList c = populatedArray(5);
586	<	List[] lists = { c, c.subList(1, c.size() - 1) };
587	<	for (List list : lists) {
588	<	try {
589	<	list.set(list.size(), "qwerty");
590	<	shouldThrow();
591	<	} catch (IndexOutOfBoundsException success) {}
592	<	}
593	<	}
594	<
595	<	/**
596	<	* add throws an IndexOutOfBoundsException on a negative index
597	<	*/
598	<	public void testAdd1_IndexOutOfBoundsException() {
599	<	CopyOnWriteArrayList c = populatedArray(5);
600	<	List[] lists = { c, c.subList(1, c.size() - 1) };
601	<	for (List list : lists) {
602	<	try {
603	<	list.add(-1, "qwerty");
604	<	shouldThrow();
605	<	} catch (IndexOutOfBoundsException success) {}
606	<	}
607	<	}
608	<
609	<	/**
610	<	* add throws an IndexOutOfBoundsException on a too high index
611	<	*/
612	<	public void testAdd2_IndexOutOfBoundsException() {
613	<	CopyOnWriteArrayList c = populatedArray(5);
614	<	List[] lists = { c, c.subList(1, c.size() - 1) };
615	<	for (List list : lists) {
616	<	try {
617	<	list.add(list.size() + 1, "qwerty");
618	<	shouldThrow();
619	<	} catch (IndexOutOfBoundsException success) {}
620	<	}
621	<	}
622	<
623	<	/**
624	<	* remove throws an IndexOutOfBoundsException on a negative index
625	<	*/
626	<	public void testRemove1_IndexOutOfBounds() {
627	<	CopyOnWriteArrayList c = populatedArray(5);
628	<	List[] lists = { c, c.subList(1, c.size() - 1) };
629	<	for (List list : lists) {
630	<	try {
631	<	list.remove(-1);
632	<	shouldThrow();
633	<	} catch (IndexOutOfBoundsException success) {}
634	<	}
635	<	}
636	<
637	<	/**
638	<	* remove throws an IndexOutOfBoundsException on a too high index
639	<	*/
640	<	public void testRemove2_IndexOutOfBounds() {
641	<	CopyOnWriteArrayList c = populatedArray(5);
642	<	List[] lists = { c, c.subList(1, c.size() - 1) };
643	<	for (List list : lists) {
644	<	try {
645	<	list.remove(list.size());
646	<	shouldThrow();
647	<	} catch (IndexOutOfBoundsException success) {}
648	<	}
649	<	}
650	<
651	<	/**
652	<	* addAll throws an IndexOutOfBoundsException on a negative index
653	<	*/
654	<	public void testAddAll1_IndexOutOfBoundsException() {
655	<	CopyOnWriteArrayList c = populatedArray(5);
656	<	List[] lists = { c, c.subList(1, c.size() - 1) };
657	<	for (List list : lists) {
658	<	try {
659	<	list.addAll(-1, new LinkedList());
660	<	shouldThrow();
661	<	} catch (IndexOutOfBoundsException success) {}
662	<	}
663	<	}
664	<
665	<	/**
666	<	* addAll throws an IndexOutOfBoundsException on a too high index
667	<	*/
668	<	public void testAddAll2_IndexOutOfBoundsException() {
669	<	CopyOnWriteArrayList c = populatedArray(5);
670	<	List[] lists = { c, c.subList(1, c.size() - 1) };
671	<	for (List list : lists) {
672	<	try {
673	<	list.addAll(list.size() + 1, new LinkedList());
674	<	shouldThrow();
675	<	} catch (IndexOutOfBoundsException success) {}
676	<	}
677	<	}
678	<
679	<	/**
680	<	* listIterator throws an IndexOutOfBoundsException on a negative index
681	<	*/
682	<	public void testListIterator1_IndexOutOfBoundsException() {
683	<	CopyOnWriteArrayList c = populatedArray(5);
684	<	List[] lists = { c, c.subList(1, c.size() - 1) };
685	<	for (List list : lists) {
686	<	try {
687	<	list.listIterator(-1);
688	<	shouldThrow();
689	<	} catch (IndexOutOfBoundsException success) {}
690	<	}
691	<	}
692	<
693	<	/**
694	<	* listIterator throws an IndexOutOfBoundsException on a too high index
695	<	*/
696	<	public void testListIterator2_IndexOutOfBoundsException() {
697	<	CopyOnWriteArrayList c = populatedArray(5);
698	<	List[] lists = { c, c.subList(1, c.size() - 1) };
699	<	for (List list : lists) {
700	<	try {
701	<	list.listIterator(list.size() + 1);
702	<	shouldThrow();
703	<	} catch (IndexOutOfBoundsException success) {}
704	<	}
705	<	}
706	<
707	<	/**
708	<	* subList throws an IndexOutOfBoundsException on a negative index
709	<	*/
710	<	public void testSubList1_IndexOutOfBoundsException() {
711	<	CopyOnWriteArrayList c = populatedArray(5);
712	<	List[] lists = { c, c.subList(1, c.size() - 1) };
713	<	for (List list : lists) {
714	<	try {
715	<	list.subList(-1, list.size());
716	<	shouldThrow();
717	<	} catch (IndexOutOfBoundsException success) {}
718	<	}
719	<	}
720	<
721	<	/**
722	<	* subList throws an IndexOutOfBoundsException on a too high index
723	<	*/
724	<	public void testSubList2_IndexOutOfBoundsException() {
725	<	CopyOnWriteArrayList c = populatedArray(5);
726	<	List[] lists = { c, c.subList(1, c.size() - 1) };
727	<	for (List list : lists) {
728	<	try {
729	<	list.subList(0, list.size() + 1);
730	<	shouldThrow();
731	<	} catch (IndexOutOfBoundsException success) {}
732	<	}
733	<	}
734	<
735	<	/**
736	<	* subList throws IndexOutOfBoundsException when the second index
737	<	* is lower then the first
738	<	*/
739	<	public void testSubList3_IndexOutOfBoundsException() {
740	<	CopyOnWriteArrayList c = populatedArray(5);
741	<	List[] lists = { c, c.subList(1, c.size() - 1) };
742	<	for (List list : lists) {
743	<	try {
744	<	list.subList(list.size() - 1, 1);
745	<	shouldThrow();
746	<	} catch (IndexOutOfBoundsException success) {}
747	<	}
669	>	* IndexOutOfBoundsException is thrown when specified
670	>	*/
671	>	public void testIndexOutOfBoundsException() {
672	>	ThreadLocalRandom rnd = ThreadLocalRandom.current();
673	>	List x = populatedList(rnd.nextInt(5));
674	>	testIndexOutOfBoundsException(x);
675	>
676	>	int start = rnd.nextInt(x.size() + 1);
677	>	int end = rnd.nextInt(start, x.size() + 1);
678	>	assertThrows(
679	>	IndexOutOfBoundsException.class,
680	>	() -> x.subList(start, start - 1));
681	>	List subList = x.subList(start, end);
682	>	testIndexOutOfBoundsException(x);
683		}
684
685		/**
686	<	* a deserialized serialized list is equal
686	>	* a deserialized/reserialized list equals original
687		*/
688		public void testSerialization() throws Exception {
689	<	List x = populatedArray(SIZE);
689	>	List x = populatedList(SIZE);
690		List y = serialClone(x);
691
692		assertNotSame(x, y);

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