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Comparing jsr166/src/test/tck/CopyOnWriteArraySetTest.java (file contents):
Revision 1.8 by jsr166, Mon Nov 2 20:28:31 2009 UTC vs.
Revision 1.29 by jsr166, Sat Jan 17 22:55:06 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
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.Vector;
17	>	import java.util.concurrent.CopyOnWriteArraySet;
18	>
19	>	import junit.framework.Test;
20	>	import junit.framework.TestSuite;
21
22		public class CopyOnWriteArraySetTest extends JSR166TestCase {
23		public static void main(String[] args) {
24	<	junit.textui.TestRunner.run (suite());
24	>	junit.textui.TestRunner.run(suite());
25		}
26		public static Test suite() {
27	<	return new TestSuite(CopyOnWriteArraySetTest.class);
27	>	return new TestSuite(CopyOnWriteArraySetTest.class);
28		}
29
30	<	static CopyOnWriteArraySet populatedSet(int n){
31	<	CopyOnWriteArraySet a = new CopyOnWriteArraySet();
30	>	static CopyOnWriteArraySet<Integer> populatedSet(int n) {
31	>	CopyOnWriteArraySet<Integer> a = new CopyOnWriteArraySet<Integer>();
32		assertTrue(a.isEmpty());
33	<	for (int i = 0; i < n; ++i)
34	<	a.add(new Integer(i));
33	>	for (int i = 0; i < n; i++)
34	>	a.add(i);
35		assertFalse(a.isEmpty());
36		assertEquals(n, a.size());
37		return a;
38		}
39
40	+	static CopyOnWriteArraySet populatedSet(Integer[] elements) {
41	+	CopyOnWriteArraySet<Integer> a = new CopyOnWriteArraySet<Integer>();
42	+	assertTrue(a.isEmpty());
43	+	for (int i = 0; i < elements.length; i++)
44	+	a.add(elements[i]);
45	+	assertFalse(a.isEmpty());
46	+	assertEquals(elements.length, a.size());
47	+	return a;
48	+	}
49	+
50		/**
51		* Default-constructed set is empty
52		*/
53		public void testConstructor() {
54	<	CopyOnWriteArraySet a = new CopyOnWriteArraySet();
54	>	CopyOnWriteArraySet a = new CopyOnWriteArraySet();
55		assertTrue(a.isEmpty());
56		}
57
#	Line 44 | Line 62 | public class CopyOnWriteArraySetTest ext
62		Integer[] ints = new Integer[SIZE];
63		for (int i = 0; i < SIZE-1; ++i)
64		ints[i] = new Integer(i);
65	<	CopyOnWriteArraySet a = new CopyOnWriteArraySet(Arrays.asList(ints));
65	>	CopyOnWriteArraySet a = new CopyOnWriteArraySet(Arrays.asList(ints));
66		for (int i = 0; i < SIZE; ++i)
67		assertTrue(a.contains(ints[i]));
68		}
69
52	–
70		/**
71	<	*   addAll  adds each element from the given collection
71	>	* addAll adds each element from the given collection
72		*/
73		public void testAddAll() {
74	<	CopyOnWriteArraySet full = populatedSet(3);
75	<	Vector v = new Vector();
76	<	v.add(three);
77	<	v.add(four);
78	<	v.add(five);
79	<	full.addAll(v);
80	<	assertEquals(6, full.size());
74	>	CopyOnWriteArraySet full = populatedSet(3);
75	>	Vector v = new Vector();
76	>	v.add(three);
77	>	v.add(four);
78	>	v.add(five);
79	>	full.addAll(v);
80	>	assertEquals(6, full.size());
81		}
82
83		/**
84	<	*   addAll adds each element from the given collection that did not
85	<	*  already exist in the set
84	>	* addAll adds each element from the given collection that did not
85	>	* already exist in the set
86		*/
87		public void testAddAll2() {
88	<	CopyOnWriteArraySet full = populatedSet(3);
89	<	Vector v = new Vector();
90	<	v.add(three);
91	<	v.add(four);
92	<	v.add(one); // will not add this element
93	<	full.addAll(v);
94	<	assertEquals(5, full.size());
88	>	CopyOnWriteArraySet full = populatedSet(3);
89	>	Vector v = new Vector();
90	>	v.add(three);
91	>	v.add(four);
92	>	v.add(one); // will not add this element
93	>	full.addAll(v);
94	>	assertEquals(5, full.size());
95		}
96
97		/**
98	<	*   add will not add the element if it already exists in the set
98	>	* add will not add the element if it already exists in the set
99		*/
100		public void testAdd2() {
101	<	CopyOnWriteArraySet full = populatedSet(3);
102	<	full.add(one);
103	<	assertEquals(3, full.size());
101	>	CopyOnWriteArraySet full = populatedSet(3);
102	>	full.add(one);
103	>	assertEquals(3, full.size());
104		}
105
106		/**
107	<	*   add  adds the element when it does not exist
91	<	*   in the set
107	>	* add adds the element when it does not exist in the set
108		*/
109		public void testAdd3() {
110	<	CopyOnWriteArraySet full = populatedSet(3);
110	>	CopyOnWriteArraySet full = populatedSet(3);
111		full.add(three);
112		assertTrue(full.contains(three));
113		}
114
115		/**
116	<	*   clear  removes all elements from the set
116	>	* clear removes all elements from the set
117		*/
118		public void testClear() {
119	<	CopyOnWriteArraySet full = populatedSet(3);
120	<	full.clear();
121	<	assertEquals(0, full.size());
119	>	CopyOnWriteArraySet full = populatedSet(3);
120	>	full.clear();
121	>	assertEquals(0, full.size());
122		}
123
124		/**
125	<	*   contains returns true for added elements
125	>	* contains returns true for added elements
126		*/
127		public void testContains() {
128	<	CopyOnWriteArraySet full = populatedSet(3);
129	<	assertTrue(full.contains(one));
130	<	assertFalse(full.contains(five));
128	>	CopyOnWriteArraySet full = populatedSet(3);
129	>	assertTrue(full.contains(one));
130	>	assertFalse(full.contains(five));
131		}
132
133		/**
134		* Sets with equal elements are equal
135		*/
136		public void testEquals() {
137	<	CopyOnWriteArraySet a = populatedSet(3);
138	<	CopyOnWriteArraySet b = populatedSet(3);
137	>	CopyOnWriteArraySet a = populatedSet(3);
138	>	CopyOnWriteArraySet b = populatedSet(3);
139		assertTrue(a.equals(b));
140		assertTrue(b.equals(a));
141		assertEquals(a.hashCode(), b.hashCode());
#	Line 132 | Line 148 | public class CopyOnWriteArraySetTest ext
148		assertEquals(a.hashCode(), b.hashCode());
149		}
150
135	–
151		/**
152	<	*   containsAll returns true for collections with subset of elements
152	>	* containsAll returns true for collections with subset of elements
153		*/
154		public void testContainsAll() {
155	<	CopyOnWriteArraySet full = populatedSet(3);
156	<	Vector v = new Vector();
157	<	v.add(one);
158	<	v.add(two);
159	<	assertTrue(full.containsAll(v));
160	<	v.add(six);
161	<	assertFalse(full.containsAll(v));
155	>	CopyOnWriteArraySet full = populatedSet(3);
156	>	Vector v = new Vector();
157	>	v.add(one);
158	>	v.add(two);
159	>	assertTrue(full.containsAll(v));
160	>	v.add(six);
161	>	assertFalse(full.containsAll(v));
162		}
163
164		/**
165	<	*   isEmpty is true when empty, else false
165	>	* isEmpty is true when empty, else false
166		*/
167		public void testIsEmpty() {
168	<	CopyOnWriteArraySet empty = new CopyOnWriteArraySet();
169	<	CopyOnWriteArraySet full = populatedSet(3);
170	<	assertTrue(empty.isEmpty());
171	<	assertFalse(full.isEmpty());
168	>	CopyOnWriteArraySet empty = new CopyOnWriteArraySet();
169	>	CopyOnWriteArraySet full = populatedSet(3);
170	>	assertTrue(empty.isEmpty());
171	>	assertFalse(full.isEmpty());
172		}
173
174		/**
175	<	*   iterator() returns an iterator containing the elements of the set
175	>	* iterator() returns an iterator containing the elements of the
176	>	* set in insertion order
177		*/
178		public void testIterator() {
179	<	CopyOnWriteArraySet full = populatedSet(3);
180	<	Iterator i = full.iterator();
181	<	int j;
182	<	for(j = 0; i.hasNext(); j++)
183	<	assertEquals(j, ((Integer)i.next()).intValue());
184	<	assertEquals(3, j);
179	>	Collection empty = new CopyOnWriteArraySet();
180	>	assertFalse(empty.iterator().hasNext());
181	>	try {
182	>	empty.iterator().next();
183	>	shouldThrow();
184	>	} catch (NoSuchElementException success) {}
185	>
186	>	Integer[] elements = new Integer[SIZE];
187	>	for (int i = 0; i < SIZE; i++)
188	>	elements[i] = i;
189	>	Collections.shuffle(Arrays.asList(elements));
190	>	Collection<Integer> full = populatedSet(elements);
191	>
192	>	Iterator it = full.iterator();
193	>	for (int j = 0; j < SIZE; j++) {
194	>	assertTrue(it.hasNext());
195	>	assertEquals(elements[j], it.next());
196	>	}
197	>	assertIteratorExhausted(it);
198	>	}
199	>
200	>	/**
201	>	* iterator of empty collection has no elements
202	>	*/
203	>	public void testEmptyIterator() {
204	>	assertIteratorExhausted(new CopyOnWriteArraySet().iterator());
205		}
206
207		/**
208		* iterator remove is unsupported
209		*/
210	<	public void testIteratorRemove () {
211	<	CopyOnWriteArraySet full = populatedSet(3);
210	>	public void testIteratorRemove() {
211	>	CopyOnWriteArraySet full = populatedSet(3);
212		Iterator it = full.iterator();
213		it.next();
214		try {
215		it.remove();
216		shouldThrow();
217	<	}
182	<	catch (UnsupportedOperationException success) {}
217	>	} catch (UnsupportedOperationException success) {}
218		}
219
220		/**
221		* toString holds toString of elements
222		*/
223		public void testToString() {
224	<	CopyOnWriteArraySet full = populatedSet(3);
224	>	assertEquals("[]", new CopyOnWriteArraySet().toString());
225	>	CopyOnWriteArraySet full = populatedSet(3);
226		String s = full.toString();
227	<	for (int i = 0; i < 3; ++i) {
228	<	assertTrue(s.indexOf(String.valueOf(i)) >= 0);
229	<	}
227	>	for (int i = 0; i < 3; ++i)
228	>	assertTrue(s.contains(String.valueOf(i)));
229	>	assertEquals(new ArrayList(full).toString(),
230	>	full.toString());
231		}
232
196	–
233		/**
234	<	*   removeAll  removes all elements from the given collection
234	>	* removeAll removes all elements from the given collection
235		*/
236		public void testRemoveAll() {
237	<	CopyOnWriteArraySet full = populatedSet(3);
238	<	Vector v = new Vector();
239	<	v.add(one);
240	<	v.add(two);
241	<	full.removeAll(v);
242	<	assertEquals(1, full.size());
237	>	CopyOnWriteArraySet full = populatedSet(3);
238	>	Vector v = new Vector();
239	>	v.add(one);
240	>	v.add(two);
241	>	full.removeAll(v);
242	>	assertEquals(1, full.size());
243		}
244
209	–
245		/**
246		* remove removes an element
247		*/
248		public void testRemove() {
249	<	CopyOnWriteArraySet full = populatedSet(3);
250	<	full.remove(one);
249	>	CopyOnWriteArraySet full = populatedSet(3);
250	>	full.remove(one);
251		assertFalse(full.contains(one));
252	<	assertEquals(2, full.size());
252	>	assertEquals(2, full.size());
253		}
254
255		/**
256	<	*   size returns the number of elements
256	>	* size returns the number of elements
257		*/
258		public void testSize() {
259	<	CopyOnWriteArraySet empty = new CopyOnWriteArraySet();
260	<	CopyOnWriteArraySet full = populatedSet(3);
261	<	assertEquals(3, full.size());
262	<	assertEquals(0, empty.size());
259	>	CopyOnWriteArraySet empty = new CopyOnWriteArraySet();
260	>	CopyOnWriteArraySet full = populatedSet(3);
261	>	assertEquals(3, full.size());
262	>	assertEquals(0, empty.size());
263		}
264
265		/**
266	<	*   toArray returns an Object array containing all elements from the set
266	>	* toArray() returns an Object array containing all elements from
267	>	* the set in insertion order
268		*/
269		public void testToArray() {
270	<	CopyOnWriteArraySet full = populatedSet(3);
271	<	Object[] o = full.toArray();
272	<	assertEquals(3, o.length);
273	<	assertEquals(0, ((Integer)o[0]).intValue());
274	<	assertEquals(1, ((Integer)o[1]).intValue());
275	<	assertEquals(2, ((Integer)o[2]).intValue());
270	>	Object[] a = new CopyOnWriteArraySet().toArray();
271	>	assertTrue(Arrays.equals(new Object[0], a));
272	>	assertSame(Object[].class, a.getClass());
273	>
274	>	Integer[] elements = new Integer[SIZE];
275	>	for (int i = 0; i < SIZE; i++)
276	>	elements[i] = i;
277	>	Collections.shuffle(Arrays.asList(elements));
278	>	Collection<Integer> full = populatedSet(elements);
279	>
280	>	assertTrue(Arrays.equals(elements, full.toArray()));
281	>	assertSame(Object[].class, full.toArray().getClass());
282		}
283
284		/**
285	<	*   toArray returns an Integer array containing all elements from
286	<	*   the set
285	>	* toArray(Integer array) returns an Integer array containing all
286	>	* elements from the set in insertion order
287		*/
288		public void testToArray2() {
289	<	CopyOnWriteArraySet full = populatedSet(3);
290	<	Integer[] i = new Integer[3];
291	<	i = (Integer[])full.toArray(i);
292	<	assertEquals(3, i.length);
293	<	assertEquals(0, i[0].intValue());
252	<	assertEquals(1, i[1].intValue());
253	<	assertEquals(2, i[2].intValue());
254	<	}
289	>	Collection empty = new CopyOnWriteArraySet();
290	>	Integer[] a;
291	>
292	>	a = new Integer[0];
293	>	assertSame(a, empty.toArray(a));
294
295	+	a = new Integer[SIZE/2];
296	+	Arrays.fill(a, 42);
297	+	assertSame(a, empty.toArray(a));
298	+	assertNull(a[0]);
299	+	for (int i = 1; i < a.length; i++)
300	+	assertEquals(42, (int) a[i]);
301	+
302	+	Integer[] elements = new Integer[SIZE];
303	+	for (int i = 0; i < SIZE; i++)
304	+	elements[i] = i;
305	+	Collections.shuffle(Arrays.asList(elements));
306	+	Collection<Integer> full = populatedSet(elements);
307	+
308	+	Arrays.fill(a, 42);
309	+	assertTrue(Arrays.equals(elements, full.toArray(a)));
310	+	for (int i = 0; i < a.length; i++)
311	+	assertEquals(42, (int) a[i]);
312	+	assertSame(Integer[].class, full.toArray(a).getClass());
313	+
314	+	a = new Integer[SIZE];
315	+	Arrays.fill(a, 42);
316	+	assertSame(a, full.toArray(a));
317	+	assertTrue(Arrays.equals(elements, a));
318	+
319	+	a = new Integer[2*SIZE];
320	+	Arrays.fill(a, 42);
321	+	assertSame(a, full.toArray(a));
322	+	assertTrue(Arrays.equals(elements, Arrays.copyOf(a, SIZE)));
323	+	assertNull(a[SIZE]);
324	+	for (int i = SIZE + 1; i < a.length; i++)
325	+	assertEquals(42, (int) a[i]);
326	+	}
327
328		/**
329	<	*  toArray throws an ArrayStoreException when the given array can
330	<	*  not store the objects inside the set
329	>	* toArray throws an ArrayStoreException when the given array can
330	>	* not store the objects inside the set
331		*/
332		public void testToArray_ArrayStoreException() {
333		try {
#	Line 264 | Line 335 | public class CopyOnWriteArraySetTest ext
335		c.add("zfasdfsdf");
336		c.add("asdadasd");
337		c.toArray(new Long[5]);
338	<	shouldThrow();
339	<	} catch(ArrayStoreException e){}
338	>	shouldThrow();
339	>	} catch (ArrayStoreException success) {}
340		}
341
342		/**
343		* A deserialized serialized set is equal
344		*/
345	<	public void testSerialization() {
346	<	CopyOnWriteArraySet q = populatedSet(SIZE);
345	>	public void testSerialization() throws Exception {
346	>	Set x = populatedSet(SIZE);
347	>	Set y = serialClone(x);
348	>
349	>	assertNotSame(y, x);
350	>	assertEquals(x.size(), y.size());
351	>	assertEquals(x.toString(), y.toString());
352	>	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
353	>	assertEquals(x, y);
354	>	assertEquals(y, x);
355	>	}
356
357	<	try {
358	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
359	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
360	<	out.writeObject(q);
361	<	out.close();
362	<
363	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
364	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
365	<	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	<	}
357	>	/**
358	>	* addAll is idempotent
359	>	*/
360	>	public void testAddAll_idempotent() throws Exception {
361	>	Set x = populatedSet(SIZE);
362	>	Set y = new CopyOnWriteArraySet(x);
363	>	y.addAll(x);
364	>	assertEquals(x, y);
365	>	assertEquals(y, x);
366		}
367
368		}

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