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Comparing jsr166/src/test/tck/CopyOnWriteArraySetTest.java (file contents):
Revision 1.2 by dl, Sun Sep 7 20:39:11 2003 UTC vs.
Revision 1.27 by jsr166, Thu May 30 03:28:55 2013 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by members of JCP JSR-166 Expert Group and released to the
3	<	* public domain. Use, modify, and redistribute this code in any way
4	<	* without acknowledgement. Other contributors include Andrew Wright,
5	<	* Jeffrey Hayes, Pat Fischer, Mike Judd.
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/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.ArrayList;
11	>	import java.util.Arrays;
12	>	import java.util.Collection;
13	>	import java.util.Collections;
14	>	import java.util.Iterator;
15	>	import java.util.NoSuchElementException;
16	>	import java.util.Set;
17	>	import java.util.Vector;
18	>	import java.util.concurrent.CopyOnWriteArraySet;
19
20	<	public class CopyOnWriteArraySetTest extends TestCase{
14	<
20	>	public class CopyOnWriteArraySetTest extends JSR166TestCase {
21		public static void main(String[] args) {
22	<	junit.textui.TestRunner.run (suite());
22	>	junit.textui.TestRunner.run(suite());
23		}
18	–
24		public static Test suite() {
25	<	return new TestSuite(CopyOnWriteArraySetTest.class);
25	>	return new TestSuite(CopyOnWriteArraySetTest.class);
26		}
27
28	<	static CopyOnWriteArraySet fullSet(int n){
29	<	CopyOnWriteArraySet a = new CopyOnWriteArraySet();
28	>	static CopyOnWriteArraySet<Integer> populatedSet(int n) {
29	>	CopyOnWriteArraySet<Integer> a = new CopyOnWriteArraySet<Integer>();
30		assertTrue(a.isEmpty());
31	<	for (int i = 0; i < n; ++i)
32	<	a.add(new Integer(i));
31	>	for (int i = 0; i < n; i++)
32	>	a.add(i);
33		assertFalse(a.isEmpty());
34		assertEquals(n, a.size());
35		return a;
36		}
37
38	+	static CopyOnWriteArraySet populatedSet(Integer[] elements) {
39	+	CopyOnWriteArraySet<Integer> a = new CopyOnWriteArraySet<Integer>();
40	+	assertTrue(a.isEmpty());
41	+	for (int i = 0; i < elements.length; i++)
42	+	a.add(elements[i]);
43	+	assertFalse(a.isEmpty());
44	+	assertEquals(elements.length, a.size());
45	+	return a;
46	+	}
47	+
48		/**
49	<	*  Test to verify addAll correctly adds each element from the given collection
49	>	* Default-constructed set is empty
50		*/
51	<	public void testAddAll(){
52	<	CopyOnWriteArraySet full = fullSet(3);
53	<	Vector v = new Vector();
39	<	v.add(new Integer(3));
40	<	v.add(new Integer(4));
41	<	v.add(new Integer(5));
42	<	full.addAll(v);
43	<	assertEquals(6, full.size());
51	>	public void testConstructor() {
52	>	CopyOnWriteArraySet a = new CopyOnWriteArraySet();
53	>	assertTrue(a.isEmpty());
54		}
55
56		/**
57	<	*  Test to verify addAllAbsent adds each element from the given collection that did not
48	<	*  already exist in the List
57	>	* Collection-constructed set holds all of its elements
58		*/
59	<	public void testAddAll2(){
60	<	CopyOnWriteArraySet full = fullSet(3);
61	<	Vector v = new Vector();
62	<	v.add(new Integer(3));
63	<	v.add(new Integer(4));
64	<	v.add(new Integer(1)); // will not add this element
65	<	full.addAll(v);
57	<	assertEquals(5, full.size());
59	>	public void testConstructor3() {
60	>	Integer[] ints = new Integer[SIZE];
61	>	for (int i = 0; i < SIZE-1; ++i)
62	>	ints[i] = new Integer(i);
63	>	CopyOnWriteArraySet a = new CopyOnWriteArraySet(Arrays.asList(ints));
64	>	for (int i = 0; i < SIZE; ++i)
65	>	assertTrue(a.contains(ints[i]));
66		}
67
68		/**
69	<	*  Test to verify addIfAbsent will not add the element if it already exists in the list
69	>	* addAll adds each element from the given collection
70		*/
71	<	public void testAdd2(){
72	<	CopyOnWriteArraySet full = fullSet(3);
73	<	full.add(new Integer(1));
74	<	assertEquals(3, full.size());
71	>	public void testAddAll() {
72	>	CopyOnWriteArraySet full = populatedSet(3);
73	>	Vector v = new Vector();
74	>	v.add(three);
75	>	v.add(four);
76	>	v.add(five);
77	>	full.addAll(v);
78	>	assertEquals(6, full.size());
79		}
80
81		/**
82	<	*  test to verify addIfAbsent correctly adds the element when it does not exist in the list
82	>	* addAll adds each element from the given collection that did not
83	>	* already exist in the set
84		*/
85	<	public void testAdd3(){
86	<	CopyOnWriteArraySet full = fullSet(3);
87	<	full.add(new Integer(3));
88	<	assertTrue(full.contains(new Integer(3)));
85	>	public void testAddAll2() {
86	>	CopyOnWriteArraySet full = populatedSet(3);
87	>	Vector v = new Vector();
88	>	v.add(three);
89	>	v.add(four);
90	>	v.add(one); // will not add this element
91	>	full.addAll(v);
92	>	assertEquals(5, full.size());
93		}
94
95		/**
96	<	*  Test to verify clear correctly removes all elements from the list
96	>	* add will not add the element if it already exists in the set
97		*/
98	<	public void testClear(){
99	<	CopyOnWriteArraySet full = fullSet(3);
100	<	full.clear();
101	<	assertEquals(0, full.size());
98	>	public void testAdd2() {
99	>	CopyOnWriteArraySet full = populatedSet(3);
100	>	full.add(one);
101	>	assertEquals(3, full.size());
102		}
103
104		/**
105	<	*  Test to verify contains returns the correct values
105	>	* add adds the element when it does not exist in the set
106		*/
107	<	public void testContains(){
108	<	CopyOnWriteArraySet full = fullSet(3);
109	<	assertTrue(full.contains(new Integer(1)));
110	<	assertFalse(full.contains(new Integer(5)));
107	>	public void testAdd3() {
108	>	CopyOnWriteArraySet full = populatedSet(3);
109	>	full.add(three);
110	>	assertTrue(full.contains(three));
111		}
112
113	+	/**
114	+	* clear removes all elements from the set
115	+	*/
116	+	public void testClear() {
117	+	CopyOnWriteArraySet full = populatedSet(3);
118	+	full.clear();
119	+	assertEquals(0, full.size());
120	+	}
121	+
122	+	/**
123	+	* contains returns true for added elements
124	+	*/
125	+	public void testContains() {
126	+	CopyOnWriteArraySet full = populatedSet(3);
127	+	assertTrue(full.contains(one));
128	+	assertFalse(full.contains(five));
129	+	}
130	+
131	+	/**
132	+	* Sets with equal elements are equal
133	+	*/
134		public void testEquals() {
135	<	CopyOnWriteArraySet a = fullSet(3);
136	<	CopyOnWriteArraySet b = fullSet(3);
135	>	CopyOnWriteArraySet a = populatedSet(3);
136	>	CopyOnWriteArraySet b = populatedSet(3);
137		assertTrue(a.equals(b));
138		assertTrue(b.equals(a));
139		assertEquals(a.hashCode(), b.hashCode());
140	<	a.add(new Integer(-1));
140	>	a.add(m1);
141		assertFalse(a.equals(b));
142		assertFalse(b.equals(a));
143	<	b.add(new Integer(-1));
143	>	b.add(m1);
144		assertTrue(a.equals(b));
145		assertTrue(b.equals(a));
146		assertEquals(a.hashCode(), b.hashCode());
147		}
148
111	–
149		/**
150	<	*  Test to verify containsAll returns the correct values
150	>	* containsAll returns true for collections with subset of elements
151		*/
152	<	public void testContainsAll(){
153	<	CopyOnWriteArraySet full = fullSet(3);
154	<	Vector v = new Vector();
155	<	v.add(new Integer(1));
156	<	v.add(new Integer(2));
157	<	assertTrue(full.containsAll(v));
158	<	v.add(new Integer(6));
159	<	assertFalse(full.containsAll(v));
152	>	public void testContainsAll() {
153	>	CopyOnWriteArraySet full = populatedSet(3);
154	>	Vector v = new Vector();
155	>	v.add(one);
156	>	v.add(two);
157	>	assertTrue(full.containsAll(v));
158	>	v.add(six);
159	>	assertFalse(full.containsAll(v));
160		}
161
162		/**
163	<	*  Test to verify isEmpty returns the correct values
163	>	* isEmpty is true when empty, else false
164		*/
165	<	public void testIsEmpty(){
166	<	CopyOnWriteArraySet empty = new CopyOnWriteArraySet();
167	<	CopyOnWriteArraySet full = fullSet(3);
168	<	assertTrue(empty.isEmpty());
169	<	assertFalse(full.isEmpty());
165	>	public void testIsEmpty() {
166	>	CopyOnWriteArraySet empty = new CopyOnWriteArraySet();
167	>	CopyOnWriteArraySet full = populatedSet(3);
168	>	assertTrue(empty.isEmpty());
169	>	assertFalse(full.isEmpty());
170		}
171
172		/**
173	<	*  Test to verify iterator() returns an iterator containing the elements of the list
173	>	* iterator() returns an iterator containing the elements of the
174	>	* set in insertion order
175		*/
176	<	public void testIterator(){
177	<	CopyOnWriteArraySet full = fullSet(3);
178	<	Iterator i = full.iterator();
179	<	int j;
180	<	for(j = 0; i.hasNext(); j++)
181	<	assertEquals(j, ((Integer)i.next()).intValue());
182	<	assertEquals(3, j);
176	>	public void testIterator() {
177	>	Collection empty = new CopyOnWriteArraySet();
178	>	assertFalse(empty.iterator().hasNext());
179	>	try {
180	>	empty.iterator().next();
181	>	shouldThrow();
182	>	} catch (NoSuchElementException success) {}
183	>
184	>	Integer[] elements = new Integer[SIZE];
185	>	for (int i = 0; i < SIZE; i++)
186	>	elements[i] = i;
187	>	Collections.shuffle(Arrays.asList(elements));
188	>	Collection<Integer> full = populatedSet(elements);
189	>
190	>	Iterator it = full.iterator();
191	>	for (int j = 0; j < SIZE; j++) {
192	>	assertTrue(it.hasNext());
193	>	assertEquals(elements[j], it.next());
194	>	}
195	>	assertFalse(it.hasNext());
196	>	try {
197	>	it.next();
198	>	shouldThrow();
199	>	} catch (NoSuchElementException success) {}
200		}
201
202	<	public void testIteratorRemove () {
203	<	CopyOnWriteArraySet full = fullSet(3);
202	>	/**
203	>	* iterator remove is unsupported
204	>	*/
205	>	public void testIteratorRemove() {
206	>	CopyOnWriteArraySet full = populatedSet(3);
207		Iterator it = full.iterator();
208		it.next();
209		try {
210		it.remove();
211	<	fail("should throw");
212	<	}
155	<	catch (UnsupportedOperationException success) {}
211	>	shouldThrow();
212	>	} catch (UnsupportedOperationException success) {}
213		}
214
215	<	public void testToString(){
216	<	CopyOnWriteArraySet full = fullSet(3);
215	>	/**
216	>	* toString holds toString of elements
217	>	*/
218	>	public void testToString() {
219	>	assertEquals("[]", new CopyOnWriteArraySet().toString());
220	>	CopyOnWriteArraySet full = populatedSet(3);
221		String s = full.toString();
222	<	for (int i = 0; i < 3; ++i) {
223	<	assertTrue(s.indexOf(String.valueOf(i)) >= 0);
224	<	}
225	<	}
226	<
222	>	for (int i = 0; i < 3; ++i)
223	>	assertTrue(s.contains(String.valueOf(i)));
224	>	assertEquals(new ArrayList(full).toString(),
225	>	full.toString());
226	>	}
227
228		/**
229	<	*  Test to verify removeAll correctly removes all elements from the given collection
229	>	* removeAll removes all elements from the given collection
230		*/
231	<	public void testRemoveAll(){
232	<	CopyOnWriteArraySet full = fullSet(3);
233	<	Vector v = new Vector();
234	<	v.add(new Integer(1));
235	<	v.add(new Integer(2));
236	<	full.removeAll(v);
237	<	assertEquals(1, full.size());
231	>	public void testRemoveAll() {
232	>	CopyOnWriteArraySet full = populatedSet(3);
233	>	Vector v = new Vector();
234	>	v.add(one);
235	>	v.add(two);
236	>	full.removeAll(v);
237	>	assertEquals(1, full.size());
238		}
239
240	<
241	<	public void testRemove(){
242	<	CopyOnWriteArraySet full = fullSet(3);
243	<	full.remove(new Integer(1));
244	<	assertFalse(full.contains(new Integer(1)));
245	<	assertEquals(2, full.size());
240	>	/**
241	>	* remove removes an element
242	>	*/
243	>	public void testRemove() {
244	>	CopyOnWriteArraySet full = populatedSet(3);
245	>	full.remove(one);
246	>	assertFalse(full.contains(one));
247	>	assertEquals(2, full.size());
248		}
249
250		/**
251	<	*  Test to verify size returns the correct values
251	>	* size returns the number of elements
252		*/
253	<	public void testSize(){
254	<	CopyOnWriteArraySet empty = new CopyOnWriteArraySet();
255	<	CopyOnWriteArraySet full = fullSet(3);
256	<	assertEquals(3, full.size());
257	<	assertEquals(0, empty.size());
253	>	public void testSize() {
254	>	CopyOnWriteArraySet empty = new CopyOnWriteArraySet();
255	>	CopyOnWriteArraySet full = populatedSet(3);
256	>	assertEquals(3, full.size());
257	>	assertEquals(0, empty.size());
258		}
259
260		/**
261	<	*  Test to verify toArray returns an Object array containing all elements from the list
261	>	* toArray() returns an Object array containing all elements from
262	>	* the set in insertion order
263		*/
264	<	public void testToArray(){
265	<	CopyOnWriteArraySet full = fullSet(3);
266	<	Object[] o = full.toArray();
267	<	assertEquals(3, o.length);
268	<	assertEquals(0, ((Integer)o[0]).intValue());
269	<	assertEquals(1, ((Integer)o[1]).intValue());
270	<	assertEquals(2, ((Integer)o[2]).intValue());
264	>	public void testToArray() {
265	>	Object[] a = new CopyOnWriteArraySet().toArray();
266	>	assertTrue(Arrays.equals(new Object[0], a));
267	>	assertSame(Object[].class, a.getClass());
268	>
269	>	Integer[] elements = new Integer[SIZE];
270	>	for (int i = 0; i < SIZE; i++)
271	>	elements[i] = i;
272	>	Collections.shuffle(Arrays.asList(elements));
273	>	Collection<Integer> full = populatedSet(elements);
274	>
275	>	assertTrue(Arrays.equals(elements, full.toArray()));
276	>	assertSame(Object[].class, full.toArray().getClass());
277		}
278
279		/**
280	<	*  test to verify toArray returns an Integer array containing all elements from the list
280	>	* toArray(Integer array) returns an Integer array containing all
281	>	* elements from the set in insertion order
282		*/
283	<	public void testToArray2(){
284	<	CopyOnWriteArraySet full = fullSet(3);
285	<	Integer[] i = new Integer[3];
286	<	i = (Integer[])full.toArray(i);
287	<	assertEquals(3, i.length);
288	<	assertEquals(0, i[0].intValue());
218	<	assertEquals(1, i[1].intValue());
219	<	assertEquals(2, i[2].intValue());
220	<	}
283	>	public void testToArray2() {
284	>	Collection empty = new CopyOnWriteArraySet();
285	>	Integer[] a;
286	>
287	>	a = new Integer[0];
288	>	assertSame(a, empty.toArray(a));
289
290	+	a = new Integer[SIZE/2];
291	+	Arrays.fill(a, 42);
292	+	assertSame(a, empty.toArray(a));
293	+	assertNull(a[0]);
294	+	for (int i = 1; i < a.length; i++)
295	+	assertEquals(42, (int) a[i]);
296
297	+	Integer[] elements = new Integer[SIZE];
298	+	for (int i = 0; i < SIZE; i++)
299	+	elements[i] = i;
300	+	Collections.shuffle(Arrays.asList(elements));
301	+	Collection<Integer> full = populatedSet(elements);
302
303	<	// Exception tests
303	>	Arrays.fill(a, 42);
304	>	assertTrue(Arrays.equals(elements, full.toArray(a)));
305	>	for (int i = 0; i < a.length; i++)
306	>	assertEquals(42, (int) a[i]);
307	>	assertSame(Integer[].class, full.toArray(a).getClass());
308	>
309	>	a = new Integer[SIZE];
310	>	Arrays.fill(a, 42);
311	>	assertSame(a, full.toArray(a));
312	>	assertTrue(Arrays.equals(elements, a));
313	>
314	>	a = new Integer[2*SIZE];
315	>	Arrays.fill(a, 42);
316	>	assertSame(a, full.toArray(a));
317	>	assertTrue(Arrays.equals(elements, Arrays.copyOf(a, SIZE)));
318	>	assertNull(a[SIZE]);
319	>	for (int i = SIZE + 1; i < a.length; i++)
320	>	assertEquals(42, (int) a[i]);
321	>	}
322
323		/**
324	<	*  Test to verify toArray throws an ArrayStoreException when the given array
325	<	*  can not store the objects inside the list
324	>	* toArray throws an ArrayStoreException when the given array can
325	>	* not store the objects inside the set
326		*/
327	<	public void testToArray_ArrayStoreException(){
328	<	try{
327	>	public void testToArray_ArrayStoreException() {
328	>	try {
329		CopyOnWriteArraySet c = new CopyOnWriteArraySet();
330		c.add("zfasdfsdf");
331		c.add("asdadasd");
332		c.toArray(new Long[5]);
333	<	fail("Object[] toArray(Object[]) should throw ArrayStoreException");
334	<	}catch(ArrayStoreException e){}
333	>	shouldThrow();
334	>	} catch (ArrayStoreException success) {}
335		}
336
337	<	public void testSerialization() {
338	<	CopyOnWriteArraySet q = fullSet(10);
337	>	/**
338	>	* A deserialized serialized set is equal
339	>	*/
340	>	public void testSerialization() throws Exception {
341	>	Set x = populatedSet(SIZE);
342	>	Set y = serialClone(x);
343	>
344	>	assertNotSame(y, x);
345	>	assertEquals(x.size(), y.size());
346	>	assertEquals(x.toString(), y.toString());
347	>	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
348	>	assertEquals(x, y);
349	>	assertEquals(y, x);
350	>	}
351
352	<	try {
353	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
354	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
355	<	out.writeObject(q);
356	<	out.close();
357	<
358	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
359	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
360	<	CopyOnWriteArraySet r = (CopyOnWriteArraySet)in.readObject();
252	<	assertEquals(q.size(), r.size());
253	<	assertTrue(q.equals(r));
254	<	assertTrue(r.equals(q));
255	<	} catch(Exception e){
256	<	e.printStackTrace();
257	<	fail("unexpected exception");
258	<	}
352	>	/**
353	>	* addAll is idempotent
354	>	*/
355	>	public void testAddAll_idempotent() throws Exception {
356	>	Set x = populatedSet(SIZE);
357	>	Set y = new CopyOnWriteArraySet(x);
358	>	y.addAll(x);
359	>	assertEquals(x, y);
360	>	assertEquals(y, x);
361		}
362
363		}

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