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Comparing jsr166/src/test/tck/CopyOnWriteArraySetTest.java (file contents):
Revision 1.6 by dl, Sat Dec 27 19:26:43 2003 UTC vs.
Revision 1.30 by jsr166, Fri Feb 27 19:28:23 2015 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.*;
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;
14	>	import java.util.NoSuchElementException;
15	>	import java.util.Set;
16	>	import java.util.concurrent.CopyOnWriteArraySet;
17	>
18	>	import junit.framework.Test;
19	>	import junit.framework.TestSuite;
20
21		public class CopyOnWriteArraySetTest extends JSR166TestCase {
22		public static void main(String[] args) {
23	<	junit.textui.TestRunner.run (suite());
23	>	junit.textui.TestRunner.run(suite());
24		}
25		public static Test suite() {
26	<	return new TestSuite(CopyOnWriteArraySetTest.class);
26	>	return new TestSuite(CopyOnWriteArraySetTest.class);
27		}
28
29	<	static CopyOnWriteArraySet populatedSet(int n){
30	<	CopyOnWriteArraySet a = new CopyOnWriteArraySet();
29	>	static CopyOnWriteArraySet<Integer> populatedSet(int n) {
30	>	CopyOnWriteArraySet<Integer> a = new CopyOnWriteArraySet<Integer>();
31		assertTrue(a.isEmpty());
32	<	for (int i = 0; i < n; ++i)
33	<	a.add(new Integer(i));
32	>	for (int i = 0; i < n; i++)
33	>	a.add(i);
34		assertFalse(a.isEmpty());
35		assertEquals(n, a.size());
36		return a;
37		}
38
39	+	static CopyOnWriteArraySet populatedSet(Integer[] elements) {
40	+	CopyOnWriteArraySet<Integer> a = new CopyOnWriteArraySet<Integer>();
41	+	assertTrue(a.isEmpty());
42	+	for (int i = 0; i < elements.length; i++)
43	+	a.add(elements[i]);
44	+	assertFalse(a.isEmpty());
45	+	assertEquals(elements.length, a.size());
46	+	return a;
47	+	}
48	+
49		/**
50		* Default-constructed set is empty
51		*/
52		public void testConstructor() {
53	<	CopyOnWriteArraySet a = new CopyOnWriteArraySet();
53	>	CopyOnWriteArraySet a = new CopyOnWriteArraySet();
54		assertTrue(a.isEmpty());
55		}
56
#	Line 44 | Line 61 | public class CopyOnWriteArraySetTest ext
61		Integer[] ints = new Integer[SIZE];
62		for (int i = 0; i < SIZE-1; ++i)
63		ints[i] = new Integer(i);
64	<	CopyOnWriteArraySet a = new CopyOnWriteArraySet(Arrays.asList(ints));
65	<	for (int i = 0; i < SIZE; ++i)
64	>	CopyOnWriteArraySet a = new CopyOnWriteArraySet(Arrays.asList(ints));
65	>	for (int i = 0; i < SIZE; ++i)
66		assertTrue(a.contains(ints[i]));
67		}
51	–
68
69		/**
70	<	*   addAll  adds each element from the given collection
70	>	* addAll adds each element from the given collection
71		*/
72		public void testAddAll() {
73	<	CopyOnWriteArraySet full = populatedSet(3);
74	<	Vector v = new Vector();
75	<	v.add(three);
76	<	v.add(four);
77	<	v.add(five);
62	<	full.addAll(v);
63	<	assertEquals(6, full.size());
73	>	CopyOnWriteArraySet full = populatedSet(3);
74	>	assertTrue(full.addAll(Arrays.asList(three, four, five)));
75	>	assertEquals(6, full.size());
76	>	assertFalse(full.addAll(Arrays.asList(three, four, five)));
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);
77	<	assertEquals(5, full.size());
85	>	CopyOnWriteArraySet full = populatedSet(3);
86	>	// "one" is duplicate and will not be added
87	>	assertTrue(full.addAll(Arrays.asList(three, four, one)));
88	>	assertEquals(5, full.size());
89	>	assertFalse(full.addAll(Arrays.asList(three, four, one)));
90	>	assertEquals(5, full.size());
91		}
92
93		/**
94	<	*   add will not add the element if it already exists in the set
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());
97	>	CopyOnWriteArraySet full = populatedSet(3);
98	>	full.add(one);
99	>	assertEquals(3, full.size());
100		}
101
102		/**
103	<	*   add  adds the element when it does not exist
91	<	*   in the set
103	>	* add adds the element when it does not exist in the set
104		*/
105		public void testAdd3() {
106	<	CopyOnWriteArraySet full = populatedSet(3);
106	>	CopyOnWriteArraySet full = populatedSet(3);
107		full.add(three);
108		assertTrue(full.contains(three));
109		}
110
111		/**
112	<	*   clear  removes all elements from the set
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());
115	>	CopyOnWriteArraySet full = populatedSet(3);
116	>	full.clear();
117	>	assertEquals(0, full.size());
118		}
119
120		/**
121	<	*   contains returns true for added elements
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));
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 132 | Line 144 | public class CopyOnWriteArraySetTest ext
144		assertEquals(a.hashCode(), b.hashCode());
145		}
146
135	–
147		/**
148	<	*   containsAll returns true for collections with subset of elements
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);
146	<	assertFalse(full.containsAll(v));
151	>	CopyOnWriteArraySet full = populatedSet(3);
152	>	assertTrue(full.containsAll(Arrays.asList()));
153	>	assertTrue(full.containsAll(Arrays.asList(one)));
154	>	assertTrue(full.containsAll(Arrays.asList(one, two)));
155	>	assertFalse(full.containsAll(Arrays.asList(one, two, six)));
156	>	assertFalse(full.containsAll(Arrays.asList(six)));
157		}
158
159		/**
160	<	*   isEmpty is true when empty, else false
160	>	* isEmpty is true when empty, else false
161		*/
162		public void testIsEmpty() {
163	<	CopyOnWriteArraySet empty = new CopyOnWriteArraySet();
164	<	CopyOnWriteArraySet full = populatedSet(3);
165	<	assertTrue(empty.isEmpty());
166	<	assertFalse(full.isEmpty());
163	>	CopyOnWriteArraySet empty = new CopyOnWriteArraySet();
164	>	CopyOnWriteArraySet full = populatedSet(3);
165	>	assertTrue(empty.isEmpty());
166	>	assertFalse(full.isEmpty());
167		}
168
169		/**
170	<	*   iterator() returns an iterator containing the elements of the set
170	>	* iterator() returns an iterator containing the elements of the
171	>	* set in insertion order
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);
174	>	Collection empty = new CopyOnWriteArraySet();
175	>	assertFalse(empty.iterator().hasNext());
176	>	try {
177	>	empty.iterator().next();
178	>	shouldThrow();
179	>	} catch (NoSuchElementException success) {}
180	>
181	>	Integer[] elements = new Integer[SIZE];
182	>	for (int i = 0; i < SIZE; i++)
183	>	elements[i] = i;
184	>	Collections.shuffle(Arrays.asList(elements));
185	>	Collection<Integer> full = populatedSet(elements);
186	>
187	>	Iterator it = full.iterator();
188	>	for (int j = 0; j < SIZE; j++) {
189	>	assertTrue(it.hasNext());
190	>	assertEquals(elements[j], it.next());
191	>	}
192	>	assertIteratorExhausted(it);
193	>	}
194	>
195	>	/**
196	>	* iterator of empty collection has no elements
197	>	*/
198	>	public void testEmptyIterator() {
199	>	assertIteratorExhausted(new CopyOnWriteArraySet().iterator());
200		}
201
202		/**
203		* iterator remove is unsupported
204		*/
205	<	public void testIteratorRemove () {
206	<	CopyOnWriteArraySet full = populatedSet(3);
205	>	public void testIteratorRemove() {
206	>	CopyOnWriteArraySet full = populatedSet(3);
207		Iterator it = full.iterator();
208		it.next();
209		try {
210		it.remove();
211		shouldThrow();
212	<	}
182	<	catch (UnsupportedOperationException success) {}
212	>	} catch (UnsupportedOperationException success) {}
213		}
214
215		/**
216		* toString holds toString of elements
217		*/
218		public void testToString() {
219	<	CopyOnWriteArraySet full = populatedSet(3);
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	<	*   removeAll  removes all elements from the given collection
229	>	* removeAll removes all elements from the given collection
230		*/
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);
206	<	assertEquals(1, full.size());
232	>	CopyOnWriteArraySet full = populatedSet(3);
233	>	assertTrue(full.removeAll(Arrays.asList(one, two)));
234	>	assertEquals(1, full.size());
235	>	assertFalse(full.removeAll(Arrays.asList(one, two)));
236	>	assertEquals(1, full.size());
237		}
238
209	–
239		/**
240		* remove removes an element
241		*/
242		public void testRemove() {
243	<	CopyOnWriteArraySet full = populatedSet(3);
244	<	full.remove(one);
243	>	CopyOnWriteArraySet full = populatedSet(3);
244	>	full.remove(one);
245		assertFalse(full.contains(one));
246	<	assertEquals(2, full.size());
246	>	assertEquals(2, full.size());
247		}
248
249		/**
250	<	*   size returns the number of elements
250	>	* size returns the number of elements
251		*/
252		public void testSize() {
253	<	CopyOnWriteArraySet empty = new CopyOnWriteArraySet();
254	<	CopyOnWriteArraySet full = populatedSet(3);
255	<	assertEquals(3, full.size());
256	<	assertEquals(0, empty.size());
253	>	CopyOnWriteArraySet empty = new CopyOnWriteArraySet();
254	>	CopyOnWriteArraySet full = populatedSet(3);
255	>	assertEquals(3, full.size());
256	>	assertEquals(0, empty.size());
257		}
258
259		/**
260	<	*   toArray returns an Object array containing all elements from the set
260	>	* toArray() returns an Object array containing all elements from
261	>	* the set in insertion order
262		*/
263		public void testToArray() {
264	<	CopyOnWriteArraySet full = populatedSet(3);
265	<	Object[] o = full.toArray();
266	<	assertEquals(3, o.length);
267	<	assertEquals(0, ((Integer)o[0]).intValue());
268	<	assertEquals(1, ((Integer)o[1]).intValue());
269	<	assertEquals(2, ((Integer)o[2]).intValue());
264	>	Object[] a = new CopyOnWriteArraySet().toArray();
265	>	assertTrue(Arrays.equals(new Object[0], a));
266	>	assertSame(Object[].class, a.getClass());
267	>
268	>	Integer[] elements = new Integer[SIZE];
269	>	for (int i = 0; i < SIZE; i++)
270	>	elements[i] = i;
271	>	Collections.shuffle(Arrays.asList(elements));
272	>	Collection<Integer> full = populatedSet(elements);
273	>
274	>	assertTrue(Arrays.equals(elements, full.toArray()));
275	>	assertSame(Object[].class, full.toArray().getClass());
276		}
277
278		/**
279	<	*   toArray returns an Integer array containing all elements from
280	<	*   the set
279	>	* toArray(Integer array) returns an Integer array containing all
280	>	* elements from the set in insertion order
281		*/
282		public void testToArray2() {
283	<	CopyOnWriteArraySet full = populatedSet(3);
284	<	Integer[] i = new Integer[3];
285	<	i = (Integer[])full.toArray(i);
286	<	assertEquals(3, i.length);
287	<	assertEquals(0, i[0].intValue());
252	<	assertEquals(1, i[1].intValue());
253	<	assertEquals(2, i[2].intValue());
254	<	}
283	>	Collection empty = new CopyOnWriteArraySet();
284	>	Integer[] a;
285	>
286	>	a = new Integer[0];
287	>	assertSame(a, empty.toArray(a));
288
289	+	a = new Integer[SIZE/2];
290	+	Arrays.fill(a, 42);
291	+	assertSame(a, empty.toArray(a));
292	+	assertNull(a[0]);
293	+	for (int i = 1; i < a.length; i++)
294	+	assertEquals(42, (int) a[i]);
295	+
296	+	Integer[] elements = new Integer[SIZE];
297	+	for (int i = 0; i < SIZE; i++)
298	+	elements[i] = i;
299	+	Collections.shuffle(Arrays.asList(elements));
300	+	Collection<Integer> full = populatedSet(elements);
301	+
302	+	Arrays.fill(a, 42);
303	+	assertTrue(Arrays.equals(elements, full.toArray(a)));
304	+	for (int i = 0; i < a.length; i++)
305	+	assertEquals(42, (int) a[i]);
306	+	assertSame(Integer[].class, full.toArray(a).getClass());
307	+
308	+	a = new Integer[SIZE];
309	+	Arrays.fill(a, 42);
310	+	assertSame(a, full.toArray(a));
311	+	assertTrue(Arrays.equals(elements, a));
312	+
313	+	a = new Integer[2*SIZE];
314	+	Arrays.fill(a, 42);
315	+	assertSame(a, full.toArray(a));
316	+	assertTrue(Arrays.equals(elements, Arrays.copyOf(a, SIZE)));
317	+	assertNull(a[SIZE]);
318	+	for (int i = SIZE + 1; i < a.length; i++)
319	+	assertEquals(42, (int) a[i]);
320	+	}
321
322		/**
323	<	*  toArray throws an ArrayStoreException when the given array can
324	<	*  not store the objects inside the set
323	>	* toArray throws an ArrayStoreException when the given array can
324	>	* not store the objects inside the set
325		*/
326		public void testToArray_ArrayStoreException() {
327		try {
#	Line 264 | Line 329 | public class CopyOnWriteArraySetTest ext
329		c.add("zfasdfsdf");
330		c.add("asdadasd");
331		c.toArray(new Long[5]);
332	<	shouldThrow();
333	<	} catch(ArrayStoreException e){}
332	>	shouldThrow();
333	>	} catch (ArrayStoreException success) {}
334		}
335
336		/**
337	<	* A deserialized seriealized set is equal
337	>	* A deserialized serialized set is equal
338		*/
339	<	public void testSerialization() {
340	<	CopyOnWriteArraySet q = populatedSet(SIZE);
339	>	public void testSerialization() throws Exception {
340	>	Set x = populatedSet(SIZE);
341	>	Set y = serialClone(x);
342
343	<	try {
344	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
345	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
346	<	out.writeObject(q);
347	<	out.close();
348	<
349	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
350	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
351	<	CopyOnWriteArraySet r = (CopyOnWriteArraySet)in.readObject();
352	<	assertEquals(q.size(), r.size());
353	<	assertTrue(q.equals(r));
354	<	assertTrue(r.equals(q));
355	<	} catch(Exception e){
356	<	unexpectedException();
357	<	}
343	>	assertNotSame(y, x);
344	>	assertEquals(x.size(), y.size());
345	>	assertEquals(x.toString(), y.toString());
346	>	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
347	>	assertEquals(x, y);
348	>	assertEquals(y, x);
349	>	}
350	>
351	>	/**
352	>	* addAll is idempotent
353	>	*/
354	>	public void testAddAll_idempotent() throws Exception {
355	>	Set x = populatedSet(SIZE);
356	>	Set y = new CopyOnWriteArraySet(x);
357	>	y.addAll(x);
358	>	assertEquals(x, y);
359	>	assertEquals(y, x);
360		}
361
362		}

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