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Comparing jsr166/src/test/tck/AtomicStampedReferenceTest.java (file contents):
Revision 1.4 by dl, Thu Sep 25 11:02:41 2003 UTC vs.
Revision 1.10 by jsr166, Mon Nov 16 05:30:07 2009 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/licenses/publicdomain
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  
12 < public class AtomicStampedReferenceTest extends JSR166TestCase{
12 > public class AtomicStampedReferenceTest extends JSR166TestCase {
13      public static void main (String[] args) {
14          junit.textui.TestRunner.run (suite());
15      }
16      public static Test suite() {
17          return new TestSuite(AtomicStampedReferenceTest.class);
18      }
19 <    
19 >
20      /**
21 <     * constructeor initializes to given reference and stamp
21 >     * constructor initializes to given reference and stamp
22       */
23 <    public void testConstructor(){
23 >    public void testConstructor() {
24          AtomicStampedReference ai = new AtomicStampedReference(one, 0);
25          assertEquals(one,ai.getReference());
26          assertEquals(0, ai.getStamp());
# Line 32 | Line 33 | public class AtomicStampedReferenceTest
33      /**
34       *  get returns the last values of reference and stamp set
35       */
36 <    public void testGetSet(){
36 >    public void testGetSet() {
37          int[] mark = new int[1];
38          AtomicStampedReference ai = new AtomicStampedReference(one, 0);
39          assertEquals(one,ai.getReference());
# Line 54 | Line 55 | public class AtomicStampedReferenceTest
55      /**
56       *  attemptStamp succeeds in single thread
57       */
58 <    public void testAttemptStamp(){
58 >    public void testAttemptStamp() {
59          int[] mark = new int[1];
60          AtomicStampedReference ai = new AtomicStampedReference(one, 0);
61          assertEquals(0, ai.getStamp());
# Line 68 | Line 69 | public class AtomicStampedReferenceTest
69       * compareAndSet succeeds in changing values if equal to expected reference
70       * and stamp else fails
71       */
72 <    public void testCompareAndSet(){
72 >    public void testCompareAndSet() {
73          int[] mark = new int[1];
74          AtomicStampedReference ai = new AtomicStampedReference(one, 0);
75          assertEquals(one, ai.get(mark));
# Line 96 | Line 97 | public class AtomicStampedReferenceTest
97          final AtomicStampedReference ai = new AtomicStampedReference(one, 0);
98          Thread t = new Thread(new Runnable() {
99                  public void run() {
100 <                    while(!ai.compareAndSet(two, three, 0, 0)) Thread.yield();
100 >                    while (!ai.compareAndSet(two, three, 0, 0)) Thread.yield();
101                  }});
102          try {
103              t.start();
# Line 106 | Line 107 | public class AtomicStampedReferenceTest
107              assertEquals(ai.getReference(), three);
108              assertEquals(ai.getStamp(), 0);
109          }
110 <        catch(Exception e) {
110 >        catch (Exception e) {
111              unexpectedException();
112          }
113      }
# Line 119 | Line 120 | public class AtomicStampedReferenceTest
120          final AtomicStampedReference ai = new AtomicStampedReference(one, 0);
121          Thread t = new Thread(new Runnable() {
122                  public void run() {
123 <                    while(!ai.compareAndSet(one, one, 1, 2)) Thread.yield();
123 >                    while (!ai.compareAndSet(one, one, 1, 2)) Thread.yield();
124                  }});
125          try {
126              t.start();
# Line 129 | Line 130 | public class AtomicStampedReferenceTest
130              assertEquals(ai.getReference(), one);
131              assertEquals(ai.getStamp(), 2);
132          }
133 <        catch(Exception e) {
133 >        catch (Exception e) {
134              unexpectedException();
135          }
136      }
137  
138      /**
139       * repeated weakCompareAndSet succeeds in changing values when equal
140 <     * to expected
140 >     * to expected
141       */
142 <    public void testWeakCompareAndSet(){
142 >    public void testWeakCompareAndSet() {
143          int[] mark = new int[1];
144          AtomicStampedReference ai = new AtomicStampedReference(one, 0);
145          assertEquals(one, ai.get(mark));
146          assertEquals(0, ai.getStamp ());
147          assertEquals(0, mark[0]);
148  
149 <        while(!ai.weakCompareAndSet(one, two, 0, 0));
149 >        while (!ai.weakCompareAndSet(one, two, 0, 0));
150          assertEquals(two, ai.get(mark));
151          assertEquals(0, mark[0]);
152  
153 <        while(!ai.weakCompareAndSet(two, m3, 0, 1));
153 >        while (!ai.weakCompareAndSet(two, m3, 0, 1));
154          assertEquals(m3, ai.get(mark));
155          assertEquals(1, mark[0]);
156      }

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