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

Comparing jsr166/src/test/tck/CopyOnWriteArraySetTest.java (file contents):
Revision 1.3 by dl, Sun Sep 14 20:42:40 2003 UTC vs.
Revision 1.23 by jsr166, Tue Nov 29 20:49:39 2011 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.Arrays;
11	>	import java.util.Collection;
12	>	import java.util.Collections;
13	>	import java.util.Iterator;
14	>	import java.util.Set;
15	>	import java.util.Vector;
16	>	import java.util.concurrent.CopyOnWriteArraySet;
17
18		public class CopyOnWriteArraySetTest extends JSR166TestCase {
14	–
19		public static void main(String[] args) {
20	<	junit.textui.TestRunner.run (suite());
20	>	junit.textui.TestRunner.run(suite());
21		}
18	–
22		public static Test suite() {
23	<	return new TestSuite(CopyOnWriteArraySetTest.class);
23	>	return new TestSuite(CopyOnWriteArraySetTest.class);
24		}
25
26	<	static CopyOnWriteArraySet populatedSet(int n){
27	<	CopyOnWriteArraySet a = new CopyOnWriteArraySet();
26	>	static CopyOnWriteArraySet<Integer> populatedSet(int n) {
27	>	CopyOnWriteArraySet<Integer> a = new CopyOnWriteArraySet<Integer>();
28		assertTrue(a.isEmpty());
29	<	for (int i = 0; i < n; ++i)
30	<	a.add(new Integer(i));
29	>	for (int i = 0; i < n; i++)
30	>	a.add(i);
31		assertFalse(a.isEmpty());
32		assertEquals(n, a.size());
33		return a;
34		}
35
36	+	static CopyOnWriteArraySet populatedSet(Integer[] elements) {
37	+	CopyOnWriteArraySet<Integer> a = new CopyOnWriteArraySet<Integer>();
38	+	assertTrue(a.isEmpty());
39	+	for (int i = 0; i < elements.length; i++)
40	+	a.add(elements[i]);
41	+	assertFalse(a.isEmpty());
42	+	assertEquals(elements.length, a.size());
43	+	return a;
44	+	}
45	+
46	+	/**
47	+	* Default-constructed set is empty
48	+	*/
49		public void testConstructor() {
50	<	CopyOnWriteArraySet a = new CopyOnWriteArraySet();
50	>	CopyOnWriteArraySet a = new CopyOnWriteArraySet();
51		assertTrue(a.isEmpty());
52		}
53
54	+	/**
55	+	* Collection-constructed set holds all of its elements
56	+	*/
57		public void testConstructor3() {
58		Integer[] ints = new Integer[SIZE];
59		for (int i = 0; i < SIZE-1; ++i)
60		ints[i] = new Integer(i);
61	<	CopyOnWriteArraySet a = new CopyOnWriteArraySet(Arrays.asList(ints));
62	<	for (int i = 0; i < SIZE; ++i)
61	>	CopyOnWriteArraySet a = new CopyOnWriteArraySet(Arrays.asList(ints));
62	>	for (int i = 0; i < SIZE; ++i)
63		assertTrue(a.contains(ints[i]));
64		}
46	–
65
66		/**
67	<	*   addAll correctly adds each element from the given collection
67	>	* addAll adds each element from the given collection
68		*/
69	<	public void testAddAll(){
70	<	CopyOnWriteArraySet full = populatedSet(3);
71	<	Vector v = new Vector();
72	<	v.add(three);
73	<	v.add(four);
74	<	v.add(five);
75	<	full.addAll(v);
76	<	assertEquals(6, full.size());
69	>	public void testAddAll() {
70	>	CopyOnWriteArraySet full = populatedSet(3);
71	>	Vector v = new Vector();
72	>	v.add(three);
73	>	v.add(four);
74	>	v.add(five);
75	>	full.addAll(v);
76	>	assertEquals(6, full.size());
77		}
78
79		/**
80	<	*   addAllAbsent adds each element from the given collection that did not
81	<	*  already exist in the List
80	>	* addAll adds each element from the given collection that did not
81	>	* already exist in the set
82		*/
83	<	public void testAddAll2(){
84	<	CopyOnWriteArraySet full = populatedSet(3);
85	<	Vector v = new Vector();
86	<	v.add(three);
87	<	v.add(four);
88	<	v.add(one); // will not add this element
89	<	full.addAll(v);
90	<	assertEquals(5, full.size());
83	>	public void testAddAll2() {
84	>	CopyOnWriteArraySet full = populatedSet(3);
85	>	Vector v = new Vector();
86	>	v.add(three);
87	>	v.add(four);
88	>	v.add(one); // will not add this element
89	>	full.addAll(v);
90	>	assertEquals(5, full.size());
91		}
92
93		/**
94	<	*   addIfAbsent will not add the element if it already exists in the list
94	>	* add will not add the element if it already exists in the set
95		*/
96	<	public void testAdd2(){
97	<	CopyOnWriteArraySet full = populatedSet(3);
98	<	full.add(one);
99	<	assertEquals(3, full.size());
96	>	public void testAdd2() {
97	>	CopyOnWriteArraySet full = populatedSet(3);
98	>	full.add(one);
99	>	assertEquals(3, full.size());
100		}
101
102		/**
103	<	*   addIfAbsent correctly adds the element when it does not exist in the list
103	>	* add adds the element when it does not exist in the set
104		*/
105	<	public void testAdd3(){
106	<	CopyOnWriteArraySet full = populatedSet(3);
105	>	public void testAdd3() {
106	>	CopyOnWriteArraySet full = populatedSet(3);
107		full.add(three);
108		assertTrue(full.contains(three));
109		}
110
111		/**
112	<	*   clear correctly removes all elements from the list
112	>	* clear removes all elements from the set
113		*/
114	<	public void testClear(){
115	<	CopyOnWriteArraySet full = populatedSet(3);
116	<	full.clear();
117	<	assertEquals(0, full.size());
114	>	public void testClear() {
115	>	CopyOnWriteArraySet full = populatedSet(3);
116	>	full.clear();
117	>	assertEquals(0, full.size());
118		}
119
120		/**
121	<	*   contains returns the correct values
121	>	* contains returns true for added elements
122		*/
123	<	public void testContains(){
124	<	CopyOnWriteArraySet full = populatedSet(3);
125	<	assertTrue(full.contains(one));
126	<	assertFalse(full.contains(five));
123	>	public void testContains() {
124	>	CopyOnWriteArraySet full = populatedSet(3);
125	>	assertTrue(full.contains(one));
126	>	assertFalse(full.contains(five));
127		}
128
129	+	/**
130	+	* Sets with equal elements are equal
131	+	*/
132		public void testEquals() {
133	<	CopyOnWriteArraySet a = populatedSet(3);
134	<	CopyOnWriteArraySet b = populatedSet(3);
133	>	CopyOnWriteArraySet a = populatedSet(3);
134	>	CopyOnWriteArraySet b = populatedSet(3);
135		assertTrue(a.equals(b));
136		assertTrue(b.equals(a));
137		assertEquals(a.hashCode(), b.hashCode());
#	Line 123 | Line 144 | public class CopyOnWriteArraySetTest ext
144		assertEquals(a.hashCode(), b.hashCode());
145		}
146
126	–
147		/**
148	<	*   containsAll returns the correct values
148	>	* containsAll returns true for collections with subset of elements
149		*/
150	<	public void testContainsAll(){
151	<	CopyOnWriteArraySet full = populatedSet(3);
152	<	Vector v = new Vector();
153	<	v.add(one);
154	<	v.add(two);
155	<	assertTrue(full.containsAll(v));
156	<	v.add(six);
157	<	assertFalse(full.containsAll(v));
150	>	public void testContainsAll() {
151	>	CopyOnWriteArraySet full = populatedSet(3);
152	>	Vector v = new Vector();
153	>	v.add(one);
154	>	v.add(two);
155	>	assertTrue(full.containsAll(v));
156	>	v.add(six);
157	>	assertFalse(full.containsAll(v));
158		}
159
160		/**
161	<	*   isEmpty returns the correct values
161	>	* isEmpty is true when empty, else false
162		*/
163	<	public void testIsEmpty(){
164	<	CopyOnWriteArraySet empty = new CopyOnWriteArraySet();
165	<	CopyOnWriteArraySet full = populatedSet(3);
166	<	assertTrue(empty.isEmpty());
167	<	assertFalse(full.isEmpty());
163	>	public void testIsEmpty() {
164	>	CopyOnWriteArraySet empty = new CopyOnWriteArraySet();
165	>	CopyOnWriteArraySet full = populatedSet(3);
166	>	assertTrue(empty.isEmpty());
167	>	assertFalse(full.isEmpty());
168		}
169
170		/**
171	<	*   iterator() returns an iterator containing the elements of the list
171	>	* iterator() returns an iterator containing the elements of the set
172		*/
173	<	public void testIterator(){
174	<	CopyOnWriteArraySet full = populatedSet(3);
175	<	Iterator i = full.iterator();
176	<	int j;
177	<	for(j = 0; i.hasNext(); j++)
178	<	assertEquals(j, ((Integer)i.next()).intValue());
179	<	assertEquals(3, j);
173	>	public void testIterator() {
174	>	CopyOnWriteArraySet full = populatedSet(3);
175	>	Iterator i = full.iterator();
176	>	int j;
177	>	for (j = 0; i.hasNext(); j++)
178	>	assertEquals(j, i.next());
179	>	assertEquals(3, j);
180		}
181
182	<	public void testIteratorRemove () {
183	<	CopyOnWriteArraySet full = populatedSet(3);
182	>	/**
183	>	* iterator remove is unsupported
184	>	*/
185	>	public void testIteratorRemove() {
186	>	CopyOnWriteArraySet full = populatedSet(3);
187		Iterator it = full.iterator();
188		it.next();
189		try {
190		it.remove();
191	<	fail("should throw");
192	<	}
170	<	catch (UnsupportedOperationException success) {}
191	>	shouldThrow();
192	>	} catch (UnsupportedOperationException success) {}
193		}
194
195	<	public void testToString(){
196	<	CopyOnWriteArraySet full = populatedSet(3);
195	>	/**
196	>	* toString holds toString of elements
197	>	*/
198	>	public void testToString() {
199	>	CopyOnWriteArraySet full = populatedSet(3);
200		String s = full.toString();
201		for (int i = 0; i < 3; ++i) {
202	<	assertTrue(s.indexOf(String.valueOf(i)) >= 0);
202	>	assertTrue(s.contains(String.valueOf(i)));
203		}
204	<	}
180	<
204	>	}
205
206		/**
207	<	*   removeAll correctly removes all elements from the given collection
207	>	* removeAll removes all elements from the given collection
208		*/
209	<	public void testRemoveAll(){
210	<	CopyOnWriteArraySet full = populatedSet(3);
211	<	Vector v = new Vector();
212	<	v.add(one);
213	<	v.add(two);
214	<	full.removeAll(v);
215	<	assertEquals(1, full.size());
209	>	public void testRemoveAll() {
210	>	CopyOnWriteArraySet full = populatedSet(3);
211	>	Vector v = new Vector();
212	>	v.add(one);
213	>	v.add(two);
214	>	full.removeAll(v);
215	>	assertEquals(1, full.size());
216		}
217
218	<
219	<	public void testRemove(){
220	<	CopyOnWriteArraySet full = populatedSet(3);
221	<	full.remove(one);
218	>	/**
219	>	* remove removes an element
220	>	*/
221	>	public void testRemove() {
222	>	CopyOnWriteArraySet full = populatedSet(3);
223	>	full.remove(one);
224		assertFalse(full.contains(one));
225	<	assertEquals(2, full.size());
225	>	assertEquals(2, full.size());
226		}
227
228		/**
229	<	*   size returns the correct values
229	>	* size returns the number of elements
230		*/
231	<	public void testSize(){
232	<	CopyOnWriteArraySet empty = new CopyOnWriteArraySet();
233	<	CopyOnWriteArraySet full = populatedSet(3);
234	<	assertEquals(3, full.size());
235	<	assertEquals(0, empty.size());
231	>	public void testSize() {
232	>	CopyOnWriteArraySet empty = new CopyOnWriteArraySet();
233	>	CopyOnWriteArraySet full = populatedSet(3);
234	>	assertEquals(3, full.size());
235	>	assertEquals(0, empty.size());
236		}
237
238		/**
239	<	*   toArray returns an Object array containing all elements from the list
239	>	* toArray() returns an Object array containing all elements from
240	>	* the set in insertion order
241		*/
242	<	public void testToArray(){
243	<	CopyOnWriteArraySet full = populatedSet(3);
244	<	Object[] o = full.toArray();
245	<	assertEquals(3, o.length);
246	<	assertEquals(0, ((Integer)o[0]).intValue());
247	<	assertEquals(1, ((Integer)o[1]).intValue());
248	<	assertEquals(2, ((Integer)o[2]).intValue());
242	>	public void testToArray() {
243	>	Object[] a = new CopyOnWriteArraySet().toArray();
244	>	assertTrue(Arrays.equals(new Object[0], a));
245	>	assertSame(Object[].class, a.getClass());
246	>
247	>	Integer[] elements = new Integer[SIZE];
248	>	for (int i = 0; i < SIZE; i++)
249	>	elements[i] = i;
250	>	Collections.shuffle(Arrays.asList(elements));
251	>	Collection<Integer> full = populatedSet(elements);
252	>
253	>	assertTrue(Arrays.equals(elements, full.toArray()));
254	>	assertSame(Object[].class, full.toArray().getClass());
255		}
256
257		/**
258	<	*   toArray returns an Integer array containing all elements from the list
258	>	* toArray(Integer array) returns an Integer array containing all
259	>	* elements from the set in insertion order
260		*/
261	<	public void testToArray2(){
262	<	CopyOnWriteArraySet full = populatedSet(3);
263	<	Integer[] i = new Integer[3];
264	<	i = (Integer[])full.toArray(i);
265	<	assertEquals(3, i.length);
266	<	assertEquals(0, i[0].intValue());
233	<	assertEquals(1, i[1].intValue());
234	<	assertEquals(2, i[2].intValue());
235	<	}
261	>	public void testToArray2() {
262	>	Collection empty = new CopyOnWriteArraySet();
263	>	Integer[] a;
264	>
265	>	a = new Integer[0];
266	>	assertSame(a, empty.toArray(a));
267
268	+	a = new Integer[SIZE/2];
269	+	Arrays.fill(a, 42);
270	+	assertSame(a, empty.toArray(a));
271	+	assertNull(a[0]);
272	+	for (int i = 1; i < a.length; i++)
273	+	assertEquals(42, (int) a[i]);
274
275	+	Integer[] elements = new Integer[SIZE];
276	+	for (int i = 0; i < SIZE; i++)
277	+	elements[i] = i;
278	+	Collections.shuffle(Arrays.asList(elements));
279	+	Collection<Integer> full = populatedSet(elements);
280
281	<	// Exception tests
281	>	Arrays.fill(a, 42);
282	>	assertTrue(Arrays.equals(elements, full.toArray(a)));
283	>	for (int i = 0; i < a.length; i++)
284	>	assertEquals(42, (int) a[i]);
285	>	assertSame(Integer[].class, full.toArray(a).getClass());
286	>
287	>	a = new Integer[SIZE];
288	>	Arrays.fill(a, 42);
289	>	assertSame(a, full.toArray(a));
290	>	assertTrue(Arrays.equals(elements, a));
291	>
292	>	a = new Integer[2*SIZE];
293	>	Arrays.fill(a, 42);
294	>	assertSame(a, full.toArray(a));
295	>	assertTrue(Arrays.equals(elements, Arrays.copyOf(a, SIZE)));
296	>	assertNull(a[SIZE]);
297	>	for (int i = SIZE + 1; i < a.length; i++)
298	>	assertEquals(42, (int) a[i]);
299	>	}
300
301		/**
302	<	*   toArray throws an ArrayStoreException when the given array
303	<	*  can not store the objects inside the list
302	>	* toArray throws an ArrayStoreException when the given array can
303	>	* not store the objects inside the set
304		*/
305	<	public void testToArray_ArrayStoreException(){
306	<	try{
305	>	public void testToArray_ArrayStoreException() {
306	>	try {
307		CopyOnWriteArraySet c = new CopyOnWriteArraySet();
308		c.add("zfasdfsdf");
309		c.add("asdadasd");
310		c.toArray(new Long[5]);
311	<	fail("Object[] toArray(Object[]) should throw ArrayStoreException");
312	<	}catch(ArrayStoreException e){}
311	>	shouldThrow();
312	>	} catch (ArrayStoreException success) {}
313		}
314
315	<	public void testSerialization() {
316	<	CopyOnWriteArraySet q = populatedSet(SIZE);
315	>	/**
316	>	* A deserialized serialized set is equal
317	>	*/
318	>	public void testSerialization() throws Exception {
319	>	Set x = populatedSet(SIZE);
320	>	Set y = serialClone(x);
321
322	<	try {
323	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
324	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
325	<	out.writeObject(q);
326	<	out.close();
327	<
264	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
265	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
266	<	CopyOnWriteArraySet r = (CopyOnWriteArraySet)in.readObject();
267	<	assertEquals(q.size(), r.size());
268	<	assertTrue(q.equals(r));
269	<	assertTrue(r.equals(q));
270	<	} catch(Exception e){
271	<	e.printStackTrace();
272	<	fail("unexpected exception");
273	<	}
322	>	assertTrue(x != y);
323	>	assertEquals(x.size(), y.size());
324	>	assertEquals(x.toString(), y.toString());
325	>	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
326	>	assertEquals(x, y);
327	>	assertEquals(y, x);
328		}
329
330		}

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