ViewVC Help

View File | Revision Log | Show Annotations | Download File | Root Listing

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

Comparing jsr166/src/test/tck/AtomicReferenceArrayTest.java (file contents):
Revision 1.14 by jsr166, Tue Nov 17 02:50:57 2009 UTC vs.
Revision 1.23 by jsr166, Fri Jun 10 19:45:01 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
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.concurrent.atomic.*;
11	<	import java.io.*;
12	<	import java.util.*;
10	>	import java.util.Arrays;
11	>	import java.util.concurrent.atomic.AtomicReferenceArray;
12
13		public class AtomicReferenceArrayTest extends JSR166TestCase {
14	<	public static void main (String[] args) {
15	<	junit.textui.TestRunner.run (suite());
14	>	public static void main(String[] args) {
15	>	junit.textui.TestRunner.run(suite());
16		}
17		public static Test suite() {
18		return new TestSuite(AtomicReferenceArrayTest.class);
#	Line 37 | Line 36 | public class AtomicReferenceArrayTest ex
36		Integer[] a = null;
37		AtomicReferenceArray<Integer> ai = new AtomicReferenceArray<Integer>(a);
38		shouldThrow();
39	<	} catch (NullPointerException success) {
39	>	} catch (NullPointerException success) {}
40		}
41
42		/**
43		* constructor with array is of same size and has all elements
44		*/
45		public void testConstructor2() {
46	<	Integer[] a = { two, one, three, four, seven};
46	>	Integer[] a = { two, one, three, four, seven };
47		AtomicReferenceArray<Integer> ai = new AtomicReferenceArray<Integer>(a);
48		assertEquals(a.length, ai.length());
49		for (int i = 0; i < a.length; ++i)
50		assertEquals(a[i], ai.get(i));
51		}
52
53	+	/**
54	+	* Initialize AtomicReference<Class> with SubClass[]
55	+	*/
56	+	public void testConstructorSubClassArray() {
57	+	Integer[] a = { two, one, three, four, seven };
58	+	AtomicReferenceArray<Number> aa = new AtomicReferenceArray<Number>(a);
59	+	assertEquals(a.length, aa.length());
60	+	for (int i = 0; i < a.length; ++i) {
61	+	assertSame(a[i], aa.get(i));
62	+	Long x = Long.valueOf(i);
63	+	aa.set(i, x);
64	+	assertSame(x, aa.get(i));
65	+	}
66	+	}
67
68		/**
69		* get and set for out of bound indices throw IndexOutOfBoundsException
#	Line 86 | Line 99 | public class AtomicReferenceArrayTest ex
99		AtomicReferenceArray ai = new AtomicReferenceArray(SIZE);
100		for (int i = 0; i < SIZE; ++i) {
101		ai.set(i, one);
102	<	assertEquals(one,ai.get(i));
102	>	assertSame(one,ai.get(i));
103		ai.set(i, two);
104	<	assertEquals(two,ai.get(i));
104	>	assertSame(two,ai.get(i));
105		ai.set(i, m3);
106	<	assertEquals(m3,ai.get(i));
106	>	assertSame(m3,ai.get(i));
107		}
108		}
109
#	Line 101 | Line 114 | public class AtomicReferenceArrayTest ex
114		AtomicReferenceArray ai = new AtomicReferenceArray(SIZE);
115		for (int i = 0; i < SIZE; ++i) {
116		ai.lazySet(i, one);
117	<	assertEquals(one,ai.get(i));
117	>	assertSame(one,ai.get(i));
118		ai.lazySet(i, two);
119	<	assertEquals(two,ai.get(i));
119	>	assertSame(two,ai.get(i));
120		ai.lazySet(i, m3);
121	<	assertEquals(m3,ai.get(i));
121	>	assertSame(m3,ai.get(i));
122		}
123		}
124
#	Line 118 | Line 131 | public class AtomicReferenceArrayTest ex
131		ai.set(i, one);
132		assertTrue(ai.compareAndSet(i, one,two));
133		assertTrue(ai.compareAndSet(i, two,m4));
134	<	assertEquals(m4,ai.get(i));
134	>	assertSame(m4,ai.get(i));
135		assertFalse(ai.compareAndSet(i, m5,seven));
136	<	assertFalse((seven.equals(ai.get(i))));
136	>	assertSame(m4,ai.get(i));
137		assertTrue(ai.compareAndSet(i, m4,seven));
138	<	assertEquals(seven,ai.get(i));
138	>	assertSame(seven,ai.get(i));
139		}
140		}
141
#	Line 130 | Line 143 | public class AtomicReferenceArrayTest ex
143		* compareAndSet in one thread enables another waiting for value
144		* to succeed
145		*/
146	<	public void testCompareAndSetInMultipleThreads() {
146	>	public void testCompareAndSetInMultipleThreads() throws InterruptedException {
147		final AtomicReferenceArray a = new AtomicReferenceArray(1);
148		a.set(0, one);
149	<	Thread t = new Thread(new Runnable() {
150	<	public void run() {
151	<	while (!a.compareAndSet(0, two, three)) Thread.yield();
152	<	}});
153	<	try {
154	<	t.start();
155	<	assertTrue(a.compareAndSet(0, one, two));
156	<	t.join(LONG_DELAY_MS);
157	<	assertFalse(t.isAlive());
158	<	assertEquals(a.get(0), three);
159	<	}
147	<	catch (Exception e) {
148	<	unexpectedException();
149	<	}
149	>	Thread t = new Thread(new CheckedRunnable() {
150	>	public void realRun() {
151	>	while (!a.compareAndSet(0, two, three))
152	>	Thread.yield();
153	>	}});
154	>
155	>	t.start();
156	>	assertTrue(a.compareAndSet(0, one, two));
157	>	t.join(LONG_DELAY_MS);
158	>	assertFalse(t.isAlive());
159	>	assertSame(a.get(0), three);
160		}
161
162		/**
#	Line 159 | Line 169 | public class AtomicReferenceArrayTest ex
169		ai.set(i, one);
170		while (!ai.weakCompareAndSet(i, one,two));
171		while (!ai.weakCompareAndSet(i, two,m4));
172	<	assertEquals(m4,ai.get(i));
172	>	assertSame(m4,ai.get(i));
173		while (!ai.weakCompareAndSet(i, m4,seven));
174	<	assertEquals(seven,ai.get(i));
174	>	assertSame(seven,ai.get(i));
175		}
176		}
177
#	Line 172 | Line 182 | public class AtomicReferenceArrayTest ex
182		AtomicReferenceArray ai = new AtomicReferenceArray(SIZE);
183		for (int i = 0; i < SIZE; ++i) {
184		ai.set(i, one);
185	<	assertEquals(one,ai.getAndSet(i,zero));
186	<	assertEquals(0,ai.getAndSet(i,m10));
187	<	assertEquals(m10,ai.getAndSet(i,one));
185	>	assertSame(one,ai.getAndSet(i,zero));
186	>	assertSame(zero,ai.getAndSet(i,m10));
187	>	assertSame(m10,ai.getAndSet(i,one));
188		}
189		}
190
191		/**
192		* a deserialized serialized array holds same values
193		*/
194	<	public void testSerialization() {
195	<	AtomicReferenceArray l = new AtomicReferenceArray(SIZE);
196	<	for (int i = 0; i < SIZE; ++i) {
197	<	l.set(i, new Integer(-i));
198	<	}
199	<
200	<	try {
201	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
202	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
203	<	out.writeObject(l);
194	<	out.close();
195	<
196	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
197	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
198	<	AtomicReferenceArray r = (AtomicReferenceArray) in.readObject();
199	<	assertEquals(l.length(), r.length());
200	<	for (int i = 0; i < SIZE; ++i) {
201	<	assertEquals(r.get(i), l.get(i));
202	<	}
203	<	} catch (Exception e) {
204	<	unexpectedException();
194	>	public void testSerialization() throws Exception {
195	>	AtomicReferenceArray x = new AtomicReferenceArray(SIZE);
196	>	for (int i = 0; i < SIZE; i++) {
197	>	x.set(i, new Integer(-i));
198	>	}
199	>	AtomicReferenceArray y = serialClone(x);
200	>	assertTrue(x != y);
201	>	assertEquals(x.length(), y.length());
202	>	for (int i = 0; i < SIZE; i++) {
203	>	assertEquals(x.get(i), y.get(i));
204		}
205		}
206
208	–
207		/**
208		* toString returns current value.
209		*/
210		public void testToString() {
211	<	Integer[] a = { two, one, three, four, seven};
211	>	Integer[] a = { two, one, three, four, seven };
212		AtomicReferenceArray<Integer> ai = new AtomicReferenceArray<Integer>(a);
213		assertEquals(Arrays.toString(a), ai.toString());
214		}

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines