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

Comparing jsr166/src/test/tck/AtomicReferenceFieldUpdaterTest.java (file contents):
Revision 1.11 by jsr166, Mon Nov 2 20:28:31 2009 UTC vs.
Revision 1.14 by jsr166, Tue Nov 17 03:12:51 2009 UTC

#	Line 10 | Line 10 | import java.util.concurrent.atomic.*;
10		import junit.framework.*;
11		import java.util.*;
12
13	<	public class AtomicReferenceFieldUpdaterTest extends JSR166TestCase{
13	>	public class AtomicReferenceFieldUpdaterTest extends JSR166TestCase {
14		volatile Integer x = null;
15		Object z;
16		Integer w;
17
18	<	public static void main(String[] args){
18	>	public static void main(String[] args) {
19		junit.textui.TestRunner.run(suite());
20		}
21		public static Test suite() {
#	Line 25 | Line 25 | public class AtomicReferenceFieldUpdater
25		/**
26		* Construction with non-existent field throws RuntimeException
27		*/
28	<	public void testConstructor(){
29	<	try{
28	>	public void testConstructor() {
29	>	try {
30		AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>
31		a = AtomicReferenceFieldUpdater.newUpdater
32		(AtomicReferenceFieldUpdaterTest.class, Integer.class, "y");
#	Line 39 | Line 39 | public class AtomicReferenceFieldUpdater
39		/**
40		* construction with field not of given type throws RuntimeException
41		*/
42	<	public void testConstructor2(){
43	<	try{
42	>	public void testConstructor2() {
43	>	try {
44		AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>
45		a = AtomicReferenceFieldUpdater.newUpdater
46		(AtomicReferenceFieldUpdaterTest.class, Integer.class, "z");
#	Line 52 | Line 52 | public class AtomicReferenceFieldUpdater
52		/**
53		* Constructor with non-volatile field throws exception
54		*/
55	<	public void testConstructor3(){
56	<	try{
55	>	public void testConstructor3() {
56	>	try {
57		AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>
58		a = AtomicReferenceFieldUpdater.newUpdater
59		(AtomicReferenceFieldUpdaterTest.class, Integer.class, "w");
#	Line 65 | Line 65 | public class AtomicReferenceFieldUpdater
65		/**
66		*  get returns the last value set or assigned
67		*/
68	<	public void testGetSet(){
68	>	public void testGetSet() {
69		AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
70		try {
71		a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
#	Line 83 | Line 83 | public class AtomicReferenceFieldUpdater
83		/**
84		*  get returns the last value lazySet by same thread
85		*/
86	<	public void testGetLazySet(){
86	>	public void testGetLazySet() {
87		AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
88		try {
89		a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
#	Line 101 | Line 101 | public class AtomicReferenceFieldUpdater
101		/**
102		* compareAndSet succeeds in changing value if equal to expected else fails
103		*/
104	<	public void testCompareAndSet(){
104	>	public void testCompareAndSet() {
105		AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
106		try {
107		a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
#	Line 122 | Line 122 | public class AtomicReferenceFieldUpdater
122		* compareAndSet in one thread enables another waiting for value
123		* to succeed
124		*/
125	<	public void testCompareAndSetInMultipleThreads() {
125	>	public void testCompareAndSetInMultipleThreads() throws Exception {
126		x = one;
127		final AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
128		try {
#	Line 133 | Line 133 | public class AtomicReferenceFieldUpdater
133
134		Thread t = new Thread(new Runnable() {
135		public void run() {
136	<	while(!a.compareAndSet(AtomicReferenceFieldUpdaterTest.this, two, three)) Thread.yield();
136	>	while (!a.compareAndSet(AtomicReferenceFieldUpdaterTest.this, two, three)) Thread.yield();
137		}});
138	<	try {
139	<	t.start();
140	<	assertTrue(a.compareAndSet(this, one, two));
141	<	t.join(LONG_DELAY_MS);
142	<	assertFalse(t.isAlive());
143	<	assertEquals(a.get(this), three);
144	<	}
145	<	catch(Exception e) {
146	<	unexpectedException();
147	<	}
138	>
139	>	t.start();
140	>	assertTrue(a.compareAndSet(this, one, two));
141	>	t.join(LONG_DELAY_MS);
142	>	assertFalse(t.isAlive());
143	>	assertEquals(a.get(this), three);
144		}
145
146		/**
147		* repeated weakCompareAndSet succeeds in changing value when equal
148		* to expected
149		*/
150	<	public void testWeakCompareAndSet(){
150	>	public void testWeakCompareAndSet() {
151		AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
152		try {
153		a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
#	Line 159 | Line 155 | public class AtomicReferenceFieldUpdater
155		return;
156		}
157		x = one;
158	<	while(!a.weakCompareAndSet(this,one,two));
159	<	while(!a.weakCompareAndSet(this,two,m4));
158	>	while (!a.weakCompareAndSet(this,one,two));
159	>	while (!a.weakCompareAndSet(this,two,m4));
160		assertEquals(m4,a.get(this));
161	<	while(!a.weakCompareAndSet(this,m4,seven));
161	>	while (!a.weakCompareAndSet(this,m4,seven));
162		assertEquals(seven,a.get(this));
163		}
164
165		/**
166		* getAndSet returns previous value and sets to given value
167		*/
168	<	public void testGetAndSet(){
168	>	public void testGetAndSet() {
169		AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
170		try {
171		a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");

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