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

Comparing jsr166/src/test/tck/CopyOnWriteArraySetTest.java (file contents):
Revision 1.7 by dl, Mon Dec 29 19:05:40 2003 UTC vs.
Revision 1.24 by jsr166, Tue Nov 29 20:59:24 2011 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
5	<	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	<	* Pat Fisher, Mike Judd.
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9		import junit.framework.*;
10	<	import java.util.*;
11	<	import java.util.concurrent.*;
12	<	import java.io.*;
10	>	import java.util.Arrays;
11	>	import java.util.Collection;
12	>	import java.util.Collections;
13	>	import java.util.Iterator;
14	>	import java.util.NoSuchElementException;
15	>	import java.util.Set;
16	>	import java.util.Vector;
17	>	import java.util.concurrent.CopyOnWriteArraySet;
18
19		public class CopyOnWriteArraySetTest extends JSR166TestCase {
20		public static void main(String[] args) {
21	<	junit.textui.TestRunner.run (suite());
21	>	junit.textui.TestRunner.run(suite());
22		}
23		public static Test suite() {
24	<	return new TestSuite(CopyOnWriteArraySetTest.class);
24	>	return new TestSuite(CopyOnWriteArraySetTest.class);
25		}
26
27	<	static CopyOnWriteArraySet populatedSet(int n){
28	<	CopyOnWriteArraySet a = new CopyOnWriteArraySet();
27	>	static CopyOnWriteArraySet<Integer> populatedSet(int n) {
28	>	CopyOnWriteArraySet<Integer> a = new CopyOnWriteArraySet<Integer>();
29		assertTrue(a.isEmpty());
30	<	for (int i = 0; i < n; ++i)
31	<	a.add(new Integer(i));
30	>	for (int i = 0; i < n; i++)
31	>	a.add(i);
32		assertFalse(a.isEmpty());
33		assertEquals(n, a.size());
34		return a;
35		}
36
37	+	static CopyOnWriteArraySet populatedSet(Integer[] elements) {
38	+	CopyOnWriteArraySet<Integer> a = new CopyOnWriteArraySet<Integer>();
39	+	assertTrue(a.isEmpty());
40	+	for (int i = 0; i < elements.length; i++)
41	+	a.add(elements[i]);
42	+	assertFalse(a.isEmpty());
43	+	assertEquals(elements.length, a.size());
44	+	return a;
45	+	}
46	+
47		/**
48		* Default-constructed set is empty
49		*/
50		public void testConstructor() {
51	<	CopyOnWriteArraySet a = new CopyOnWriteArraySet();
51	>	CopyOnWriteArraySet a = new CopyOnWriteArraySet();
52		assertTrue(a.isEmpty());
53		}
54
#	Line 44 | Line 59 | public class CopyOnWriteArraySetTest ext
59		Integer[] ints = new Integer[SIZE];
60		for (int i = 0; i < SIZE-1; ++i)
61		ints[i] = new Integer(i);
62	<	CopyOnWriteArraySet a = new CopyOnWriteArraySet(Arrays.asList(ints));
63	<	for (int i = 0; i < SIZE; ++i)
62	>	CopyOnWriteArraySet a = new CopyOnWriteArraySet(Arrays.asList(ints));
63	>	for (int i = 0; i < SIZE; ++i)
64		assertTrue(a.contains(ints[i]));
65		}
51	–
66
67		/**
68	<	*   addAll  adds each element from the given collection
68	>	* addAll adds each element from the given collection
69		*/
70		public void testAddAll() {
71	<	CopyOnWriteArraySet full = populatedSet(3);
72	<	Vector v = new Vector();
73	<	v.add(three);
74	<	v.add(four);
75	<	v.add(five);
76	<	full.addAll(v);
77	<	assertEquals(6, full.size());
71	>	CopyOnWriteArraySet full = populatedSet(3);
72	>	Vector v = new Vector();
73	>	v.add(three);
74	>	v.add(four);
75	>	v.add(five);
76	>	full.addAll(v);
77	>	assertEquals(6, full.size());
78		}
79
80		/**
81	<	*   addAll adds each element from the given collection that did not
82	<	*  already exist in the set
81	>	* addAll adds each element from the given collection that did not
82	>	* already exist in the set
83		*/
84		public void testAddAll2() {
85	<	CopyOnWriteArraySet full = populatedSet(3);
86	<	Vector v = new Vector();
87	<	v.add(three);
88	<	v.add(four);
89	<	v.add(one); // will not add this element
90	<	full.addAll(v);
91	<	assertEquals(5, full.size());
85	>	CopyOnWriteArraySet full = populatedSet(3);
86	>	Vector v = new Vector();
87	>	v.add(three);
88	>	v.add(four);
89	>	v.add(one); // will not add this element
90	>	full.addAll(v);
91	>	assertEquals(5, full.size());
92		}
93
94		/**
95	<	*   add will not add the element if it already exists in the set
95	>	* add will not add the element if it already exists in the set
96		*/
97		public void testAdd2() {
98	<	CopyOnWriteArraySet full = populatedSet(3);
99	<	full.add(one);
100	<	assertEquals(3, full.size());
98	>	CopyOnWriteArraySet full = populatedSet(3);
99	>	full.add(one);
100	>	assertEquals(3, full.size());
101		}
102
103		/**
104	<	*   add  adds the element when it does not exist
91	<	*   in the set
104	>	* add adds the element when it does not exist in the set
105		*/
106		public void testAdd3() {
107	<	CopyOnWriteArraySet full = populatedSet(3);
107	>	CopyOnWriteArraySet full = populatedSet(3);
108		full.add(three);
109		assertTrue(full.contains(three));
110		}
111
112		/**
113	<	*   clear  removes all elements from the set
113	>	* clear removes all elements from the set
114		*/
115		public void testClear() {
116	<	CopyOnWriteArraySet full = populatedSet(3);
117	<	full.clear();
118	<	assertEquals(0, full.size());
116	>	CopyOnWriteArraySet full = populatedSet(3);
117	>	full.clear();
118	>	assertEquals(0, full.size());
119		}
120
121		/**
122	<	*   contains returns true for added elements
122	>	* contains returns true for added elements
123		*/
124		public void testContains() {
125	<	CopyOnWriteArraySet full = populatedSet(3);
126	<	assertTrue(full.contains(one));
127	<	assertFalse(full.contains(five));
125	>	CopyOnWriteArraySet full = populatedSet(3);
126	>	assertTrue(full.contains(one));
127	>	assertFalse(full.contains(five));
128		}
129
130		/**
131		* Sets with equal elements are equal
132		*/
133		public void testEquals() {
134	<	CopyOnWriteArraySet a = populatedSet(3);
135	<	CopyOnWriteArraySet b = populatedSet(3);
134	>	CopyOnWriteArraySet a = populatedSet(3);
135	>	CopyOnWriteArraySet b = populatedSet(3);
136		assertTrue(a.equals(b));
137		assertTrue(b.equals(a));
138		assertEquals(a.hashCode(), b.hashCode());
#	Line 132 | Line 145 | public class CopyOnWriteArraySetTest ext
145		assertEquals(a.hashCode(), b.hashCode());
146		}
147
135	–
148		/**
149	<	*   containsAll returns true for collections with subset of elements
149	>	* containsAll returns true for collections with subset of elements
150		*/
151		public void testContainsAll() {
152	<	CopyOnWriteArraySet full = populatedSet(3);
153	<	Vector v = new Vector();
154	<	v.add(one);
155	<	v.add(two);
156	<	assertTrue(full.containsAll(v));
157	<	v.add(six);
158	<	assertFalse(full.containsAll(v));
152	>	CopyOnWriteArraySet full = populatedSet(3);
153	>	Vector v = new Vector();
154	>	v.add(one);
155	>	v.add(two);
156	>	assertTrue(full.containsAll(v));
157	>	v.add(six);
158	>	assertFalse(full.containsAll(v));
159		}
160
161		/**
162	<	*   isEmpty is true when empty, else false
162	>	* isEmpty is true when empty, else false
163		*/
164		public void testIsEmpty() {
165	<	CopyOnWriteArraySet empty = new CopyOnWriteArraySet();
166	<	CopyOnWriteArraySet full = populatedSet(3);
167	<	assertTrue(empty.isEmpty());
168	<	assertFalse(full.isEmpty());
165	>	CopyOnWriteArraySet empty = new CopyOnWriteArraySet();
166	>	CopyOnWriteArraySet full = populatedSet(3);
167	>	assertTrue(empty.isEmpty());
168	>	assertFalse(full.isEmpty());
169		}
170
171		/**
172	<	*   iterator() returns an iterator containing the elements of the set
172	>	* iterator() returns an iterator containing the elements of the
173	>	* set in insertion order
174		*/
175		public void testIterator() {
176	<	CopyOnWriteArraySet full = populatedSet(3);
177	<	Iterator i = full.iterator();
178	<	int j;
179	<	for(j = 0; i.hasNext(); j++)
180	<	assertEquals(j, ((Integer)i.next()).intValue());
181	<	assertEquals(3, j);
176	>	Set empty = new CopyOnWriteArraySet();
177	>	assertFalse(empty.iterator().hasNext());
178	>	try {
179	>	empty.iterator().next();
180	>	shouldThrow();
181	>	} catch (NoSuchElementException success) {}
182	>
183	>	Integer[] elements = new Integer[SIZE];
184	>	for (int i = 0; i < SIZE; i++)
185	>	elements[i] = i;
186	>	Collections.shuffle(Arrays.asList(elements));
187	>	Collection<Integer> full = populatedSet(elements);
188	>
189	>	Iterator it = full.iterator();
190	>	for (int j = 0; j < SIZE; j++) {
191	>	assertTrue(it.hasNext());
192	>	assertEquals(elements[j], it.next());
193	>	}
194	>	assertFalse(it.hasNext());
195	>	try {
196	>	it.next();
197	>	shouldThrow();
198	>	} catch (NoSuchElementException success) {}
199		}
200
201		/**
202		* iterator remove is unsupported
203		*/
204	<	public void testIteratorRemove () {
205	<	CopyOnWriteArraySet full = populatedSet(3);
204	>	public void testIteratorRemove() {
205	>	CopyOnWriteArraySet full = populatedSet(3);
206		Iterator it = full.iterator();
207		it.next();
208		try {
209		it.remove();
210		shouldThrow();
211	<	}
182	<	catch (UnsupportedOperationException success) {}
211	>	} catch (UnsupportedOperationException success) {}
212		}
213
214		/**
215		* toString holds toString of elements
216		*/
217		public void testToString() {
218	<	CopyOnWriteArraySet full = populatedSet(3);
218	>	CopyOnWriteArraySet full = populatedSet(3);
219		String s = full.toString();
220		for (int i = 0; i < 3; ++i) {
221	<	assertTrue(s.indexOf(String.valueOf(i)) >= 0);
221	>	assertTrue(s.contains(String.valueOf(i)));
222		}
223	<	}
195	<
223	>	}
224
225		/**
226	<	*   removeAll  removes all elements from the given collection
226	>	* removeAll removes all elements from the given collection
227		*/
228		public void testRemoveAll() {
229	<	CopyOnWriteArraySet full = populatedSet(3);
230	<	Vector v = new Vector();
231	<	v.add(one);
232	<	v.add(two);
233	<	full.removeAll(v);
234	<	assertEquals(1, full.size());
229	>	CopyOnWriteArraySet full = populatedSet(3);
230	>	Vector v = new Vector();
231	>	v.add(one);
232	>	v.add(two);
233	>	full.removeAll(v);
234	>	assertEquals(1, full.size());
235		}
236
209	–
237		/**
238		* remove removes an element
239		*/
240		public void testRemove() {
241	<	CopyOnWriteArraySet full = populatedSet(3);
242	<	full.remove(one);
241	>	CopyOnWriteArraySet full = populatedSet(3);
242	>	full.remove(one);
243		assertFalse(full.contains(one));
244	<	assertEquals(2, full.size());
244	>	assertEquals(2, full.size());
245		}
246
247		/**
248	<	*   size returns the number of elements
248	>	* size returns the number of elements
249		*/
250		public void testSize() {
251	<	CopyOnWriteArraySet empty = new CopyOnWriteArraySet();
252	<	CopyOnWriteArraySet full = populatedSet(3);
253	<	assertEquals(3, full.size());
254	<	assertEquals(0, empty.size());
251	>	CopyOnWriteArraySet empty = new CopyOnWriteArraySet();
252	>	CopyOnWriteArraySet full = populatedSet(3);
253	>	assertEquals(3, full.size());
254	>	assertEquals(0, empty.size());
255		}
256
257		/**
258	<	*   toArray returns an Object array containing all elements from the set
258	>	* toArray() returns an Object array containing all elements from
259	>	* the set in insertion order
260		*/
261		public void testToArray() {
262	<	CopyOnWriteArraySet full = populatedSet(3);
263	<	Object[] o = full.toArray();
264	<	assertEquals(3, o.length);
265	<	assertEquals(0, ((Integer)o[0]).intValue());
266	<	assertEquals(1, ((Integer)o[1]).intValue());
267	<	assertEquals(2, ((Integer)o[2]).intValue());
262	>	Object[] a = new CopyOnWriteArraySet().toArray();
263	>	assertTrue(Arrays.equals(new Object[0], a));
264	>	assertSame(Object[].class, a.getClass());
265	>
266	>	Integer[] elements = new Integer[SIZE];
267	>	for (int i = 0; i < SIZE; i++)
268	>	elements[i] = i;
269	>	Collections.shuffle(Arrays.asList(elements));
270	>	Collection<Integer> full = populatedSet(elements);
271	>
272	>	assertTrue(Arrays.equals(elements, full.toArray()));
273	>	assertSame(Object[].class, full.toArray().getClass());
274		}
275
276		/**
277	<	*   toArray returns an Integer array containing all elements from
278	<	*   the set
277	>	* toArray(Integer array) returns an Integer array containing all
278	>	* elements from the set in insertion order
279		*/
280		public void testToArray2() {
281	<	CopyOnWriteArraySet full = populatedSet(3);
282	<	Integer[] i = new Integer[3];
249	<	i = (Integer[])full.toArray(i);
250	<	assertEquals(3, i.length);
251	<	assertEquals(0, i[0].intValue());
252	<	assertEquals(1, i[1].intValue());
253	<	assertEquals(2, i[2].intValue());
254	<	}
281	>	Collection empty = new CopyOnWriteArraySet();
282	>	Integer[] a;
283
284	+	a = new Integer[0];
285	+	assertSame(a, empty.toArray(a));
286	+
287	+	a = new Integer[SIZE/2];
288	+	Arrays.fill(a, 42);
289	+	assertSame(a, empty.toArray(a));
290	+	assertNull(a[0]);
291	+	for (int i = 1; i < a.length; i++)
292	+	assertEquals(42, (int) a[i]);
293	+
294	+	Integer[] elements = new Integer[SIZE];
295	+	for (int i = 0; i < SIZE; i++)
296	+	elements[i] = i;
297	+	Collections.shuffle(Arrays.asList(elements));
298	+	Collection<Integer> full = populatedSet(elements);
299	+
300	+	Arrays.fill(a, 42);
301	+	assertTrue(Arrays.equals(elements, full.toArray(a)));
302	+	for (int i = 0; i < a.length; i++)
303	+	assertEquals(42, (int) a[i]);
304	+	assertSame(Integer[].class, full.toArray(a).getClass());
305	+
306	+	a = new Integer[SIZE];
307	+	Arrays.fill(a, 42);
308	+	assertSame(a, full.toArray(a));
309	+	assertTrue(Arrays.equals(elements, a));
310	+
311	+	a = new Integer[2*SIZE];
312	+	Arrays.fill(a, 42);
313	+	assertSame(a, full.toArray(a));
314	+	assertTrue(Arrays.equals(elements, Arrays.copyOf(a, SIZE)));
315	+	assertNull(a[SIZE]);
316	+	for (int i = SIZE + 1; i < a.length; i++)
317	+	assertEquals(42, (int) a[i]);
318	+	}
319
320		/**
321	<	*  toArray throws an ArrayStoreException when the given array can
322	<	*  not store the objects inside the set
321	>	* toArray throws an ArrayStoreException when the given array can
322	>	* not store the objects inside the set
323		*/
324		public void testToArray_ArrayStoreException() {
325		try {
#	Line 264 | Line 327 | public class CopyOnWriteArraySetTest ext
327		c.add("zfasdfsdf");
328		c.add("asdadasd");
329		c.toArray(new Long[5]);
330	<	shouldThrow();
331	<	} catch(ArrayStoreException e){}
330	>	shouldThrow();
331	>	} catch (ArrayStoreException success) {}
332		}
333
334		/**
335		* A deserialized serialized set is equal
336		*/
337	<	public void testSerialization() {
338	<	CopyOnWriteArraySet q = populatedSet(SIZE);
339	<
340	<	try {
341	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
342	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
343	<	out.writeObject(q);
344	<	out.close();
345	<
346	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
284	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
285	<	CopyOnWriteArraySet r = (CopyOnWriteArraySet)in.readObject();
286	<	assertEquals(q.size(), r.size());
287	<	assertTrue(q.equals(r));
288	<	assertTrue(r.equals(q));
289	<	} catch(Exception e){
290	<	unexpectedException();
291	<	}
337	>	public void testSerialization() throws Exception {
338	>	Set x = populatedSet(SIZE);
339	>	Set y = serialClone(x);
340	>
341	>	assertTrue(x != y);
342	>	assertEquals(x.size(), y.size());
343	>	assertEquals(x.toString(), y.toString());
344	>	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
345	>	assertEquals(x, y);
346	>	assertEquals(y, x);
347		}
348
349		}

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