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

Comparing jsr166/src/test/tck/CopyOnWriteArrayListTest.java (file contents):
Revision 1.31 by jsr166, Wed Dec 31 19:05:42 2014 UTC vs.
Revision 1.46 by jsr166, Sun Jan 7 07:07:20 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;
12		import java.util.Iterator;
13		import java.util.LinkedList;
14		import java.util.List;
15		import java.util.ListIterator;
16		import java.util.NoSuchElementException;
18	–	import java.util.Vector;
17		import java.util.concurrent.CopyOnWriteArrayList;
18
19		import junit.framework.Test;
22	–	import junit.framework.TestSuite;
20
21		public class CopyOnWriteArrayListTest extends JSR166TestCase {
22
23		public static void main(String[] args) {
24	<	junit.textui.TestRunner.run(suite());
24	>	main(suite(), args);
25		}
26
27		public static Test suite() {
28	<	return new TestSuite(CopyOnWriteArrayListTest.class);
28	>	class Implementation implements CollectionImplementation {
29	>	public Class<?> klazz() { return CopyOnWriteArrayList.class; }
30	>	public List emptyCollection() { return new CopyOnWriteArrayList(); }
31	>	public Object makeElement(int i) { return i; }
32	>	public boolean isConcurrent() { return true; }
33	>	public boolean permitsNulls() { return true; }
34	>	}
35	>	class SubListImplementation extends Implementation {
36	>	public List emptyCollection() {
37	>	return super.emptyCollection().subList(0, 0);
38	>	}
39	>	}
40	>	return newTestSuite(
41	>	CopyOnWriteArrayListTest.class,
42	>	CollectionTest.testSuite(new Implementation()),
43	>	CollectionTest.testSuite(new SubListImplementation()));
44		}
45
46		static CopyOnWriteArrayList<Integer> populatedArray(int n) {
47	<	CopyOnWriteArrayList<Integer> a = new CopyOnWriteArrayList<Integer>();
47	>	CopyOnWriteArrayList<Integer> a = new CopyOnWriteArrayList<>();
48		assertTrue(a.isEmpty());
49		for (int i = 0; i < n; i++)
50		a.add(i);
#	Line 42 | Line 54 | public class CopyOnWriteArrayListTest ex
54		}
55
56		static CopyOnWriteArrayList<Integer> populatedArray(Integer[] elements) {
57	<	CopyOnWriteArrayList<Integer> a = new CopyOnWriteArrayList<Integer>();
57	>	CopyOnWriteArrayList<Integer> a = new CopyOnWriteArrayList<>();
58		assertTrue(a.isEmpty());
59	<	for (int i = 0; i < elements.length; i++)
60	<	a.add(elements[i]);
59	>	for (Integer element : elements)
60	>	a.add(element);
61		assertFalse(a.isEmpty());
62		assertEquals(elements.length, a.size());
63		return a;
#	Line 64 | Line 76 | public class CopyOnWriteArrayListTest ex
76		*/
77		public void testConstructor2() {
78		Integer[] ints = new Integer[SIZE];
79	<	for (int i = 0; i < SIZE-1; ++i)
79	>	for (int i = 0; i < SIZE - 1; ++i)
80		ints[i] = new Integer(i);
81		CopyOnWriteArrayList a = new CopyOnWriteArrayList(ints);
82		for (int i = 0; i < SIZE; ++i)
#	Line 76 | Line 88 | public class CopyOnWriteArrayListTest ex
88		*/
89		public void testConstructor3() {
90		Integer[] ints = new Integer[SIZE];
91	<	for (int i = 0; i < SIZE-1; ++i)
91	>	for (int i = 0; i < SIZE - 1; ++i)
92		ints[i] = new Integer(i);
93		CopyOnWriteArrayList a = new CopyOnWriteArrayList(Arrays.asList(ints));
94		for (int i = 0; i < SIZE; ++i)
#	Line 84 | Line 96 | public class CopyOnWriteArrayListTest ex
96		}
97
98		/**
99	<	* addAll adds each element from the given collection
99	>	* addAll adds each element from the given collection, including duplicates
100		*/
101		public void testAddAll() {
102		CopyOnWriteArrayList full = populatedArray(3);
103	<	Vector v = new Vector();
92	<	v.add(three);
93	<	v.add(four);
94	<	v.add(five);
95	<	full.addAll(v);
103	>	assertTrue(full.addAll(Arrays.asList(three, four, five)));
104		assertEquals(6, full.size());
105	+	assertTrue(full.addAll(Arrays.asList(three, four, five)));
106	+	assertEquals(9, full.size());
107		}
108
109		/**
#	Line 102 | Line 112 | public class CopyOnWriteArrayListTest ex
112		*/
113		public void testAddAllAbsent() {
114		CopyOnWriteArrayList full = populatedArray(3);
115	<	Vector v = new Vector();
116	<	v.add(three);
117	<	v.add(four);
118	<	v.add(one); // will not add this element
109	<	full.addAllAbsent(v);
115	>	// "one" is duplicate and will not be added
116	>	assertEquals(2, full.addAllAbsent(Arrays.asList(three, four, one)));
117	>	assertEquals(5, full.size());
118	>	assertEquals(0, full.addAllAbsent(Arrays.asList(three, four, one)));
119		assertEquals(5, full.size());
120		}
121
#	Line 181 | Line 190 | public class CopyOnWriteArrayListTest ex
190		CopyOnWriteArrayList b = populatedArray(3);
191		assertTrue(a.equals(b));
192		assertTrue(b.equals(a));
193	+	assertTrue(a.containsAll(b));
194	+	assertTrue(b.containsAll(a));
195		assertEquals(a.hashCode(), b.hashCode());
196		a.add(m1);
197		assertFalse(a.equals(b));
198		assertFalse(b.equals(a));
199	+	assertTrue(a.containsAll(b));
200	+	assertFalse(b.containsAll(a));
201		b.add(m1);
202		assertTrue(a.equals(b));
203		assertTrue(b.equals(a));
204	+	assertTrue(a.containsAll(b));
205	+	assertTrue(b.containsAll(a));
206		assertEquals(a.hashCode(), b.hashCode());
207	+
208	+	assertFalse(a.equals(null));
209		}
210
211		/**
212	<	* containsAll returns true for collection with subset of elements
212	>	* containsAll returns true for collections with subset of elements
213		*/
214		public void testContainsAll() {
215		CopyOnWriteArrayList full = populatedArray(3);
216	<	Vector v = new Vector();
217	<	v.add(one);
218	<	v.add(two);
219	<	assertTrue(full.containsAll(v));
220	<	v.add(six);
221	<	assertFalse(full.containsAll(v));
216	>	assertTrue(full.containsAll(Arrays.asList()));
217	>	assertTrue(full.containsAll(Arrays.asList(one)));
218	>	assertTrue(full.containsAll(Arrays.asList(one, two)));
219	>	assertFalse(full.containsAll(Arrays.asList(one, two, six)));
220	>	assertFalse(full.containsAll(Arrays.asList(six)));
221	>
222	>	try {
223	>	full.containsAll(null);
224	>	shouldThrow();
225	>	} catch (NullPointerException success) {}
226		}
227
228		/**
#	Line 256 | Line 277 | public class CopyOnWriteArrayListTest ex
277		Integer[] elements = new Integer[SIZE];
278		for (int i = 0; i < SIZE; i++)
279		elements[i] = i;
280	<	Collections.shuffle(Arrays.asList(elements));
280	>	shuffle(elements);
281		Collection<Integer> full = populatedArray(elements);
282
283		Iterator it = full.iterator();
#	Line 264 | Line 285 | public class CopyOnWriteArrayListTest ex
285		assertTrue(it.hasNext());
286		assertEquals(elements[j], it.next());
287		}
288	<	assertFalse(it.hasNext());
289	<	try {
290	<	it.next();
291	<	shouldThrow();
292	<	} catch (NoSuchElementException success) {}
288	>	assertIteratorExhausted(it);
289	>	}
290	>
291	>	/**
292	>	* iterator of empty collection has no elements
293	>	*/
294	>	public void testEmptyIterator() {
295	>	Collection c = new CopyOnWriteArrayList();
296	>	assertIteratorExhausted(c.iterator());
297		}
298
299		/**
#	Line 339 | Line 364 | public class CopyOnWriteArrayListTest ex
364		ListIterator i = full.listIterator(1);
365		int j;
366		for (j = 0; i.hasNext(); j++)
367	<	assertEquals(j+1, i.next());
367	>	assertEquals(j + 1, i.next());
368		assertEquals(2, j);
369		}
370
#	Line 383 | Line 408 | public class CopyOnWriteArrayListTest ex
408		*/
409		public void testRemoveAll() {
410		CopyOnWriteArrayList full = populatedArray(3);
411	<	Vector v = new Vector();
412	<	v.add(one);
413	<	v.add(two);
389	<	full.removeAll(v);
411	>	assertTrue(full.removeAll(Arrays.asList(one, two)));
412	>	assertEquals(1, full.size());
413	>	assertFalse(full.removeAll(Arrays.asList(one, two)));
414		assertEquals(1, full.size());
415		}
416
#	Line 421 | Line 445 | public class CopyOnWriteArrayListTest ex
445		Integer[] elements = new Integer[SIZE];
446		for (int i = 0; i < SIZE; i++)
447		elements[i] = i;
448	<	Collections.shuffle(Arrays.asList(elements));
448	>	shuffle(elements);
449		Collection<Integer> full = populatedArray(elements);
450
451		assertTrue(Arrays.equals(elements, full.toArray()));
#	Line 439 | Line 463 | public class CopyOnWriteArrayListTest ex
463		a = new Integer[0];
464		assertSame(a, empty.toArray(a));
465
466	<	a = new Integer[SIZE/2];
466	>	a = new Integer[SIZE / 2];
467		Arrays.fill(a, 42);
468		assertSame(a, empty.toArray(a));
469		assertNull(a[0]);
#	Line 449 | Line 473 | public class CopyOnWriteArrayListTest ex
473		Integer[] elements = new Integer[SIZE];
474		for (int i = 0; i < SIZE; i++)
475		elements[i] = i;
476	<	Collections.shuffle(Arrays.asList(elements));
476	>	shuffle(elements);
477		Collection<Integer> full = populatedArray(elements);
478
479		Arrays.fill(a, 42);
#	Line 463 | Line 487 | public class CopyOnWriteArrayListTest ex
487		assertSame(a, full.toArray(a));
488		assertTrue(Arrays.equals(elements, a));
489
490	<	a = new Integer[2*SIZE];
490	>	a = new Integer[2 * SIZE];
491		Arrays.fill(a, 42);
492		assertSame(a, full.toArray(a));
493		assertTrue(Arrays.equals(elements, Arrays.copyOf(a, SIZE)));
#	Line 723 | Line 747 | public class CopyOnWriteArrayListTest ex
747		}
748
749		/**
750	<	* a deserialized serialized list is equal
750	>	* a deserialized/reserialized list equals original
751		*/
752		public void testSerialization() throws Exception {
753		List x = populatedArray(SIZE);

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