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Comparing jsr166/src/test/tck/AtomicLongFieldUpdaterTest.java (file contents):
Revision 1.4 by dl, Thu Sep 25 11:02:41 2003 UTC vs.
Revision 1.11 by jsr166, Mon Nov 16 04:57:10 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 java.util.concurrent.atomic.*;
# Line 22 | Line 23 | public class AtomicLongFieldUpdaterTest
23      }
24  
25      /**
26 <     * Contruction with non-existent field throws RuntimeException
26 >     * Construction with non-existent field throws RuntimeException
27       */
28      public void testConstructor(){
29 <        try{
30 <            AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest>
29 >        try {
30 >            AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest>
31                  a = AtomicLongFieldUpdater.newUpdater
32 <                (getClass(), "y");
32 >                (AtomicLongFieldUpdaterTest.class, "y");
33              shouldThrow();
34          }
35          catch (RuntimeException rt) {}
# Line 38 | Line 39 | public class AtomicLongFieldUpdaterTest
39       * construction with field not of given type throws RuntimeException
40       */
41      public void testConstructor2(){
42 <        try{
43 <            AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest>
42 >        try {
43 >            AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest>
44                  a = AtomicLongFieldUpdater.newUpdater
45 <                (getClass(), "z");
45 >                (AtomicLongFieldUpdaterTest.class, "z");
46              shouldThrow();
47          }
48          catch (RuntimeException rt) {}
# Line 51 | Line 52 | public class AtomicLongFieldUpdaterTest
52       * construction with non-volatile field throws RuntimeException
53       */
54      public void testConstructor3(){
55 <        try{
56 <            AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest>
55 >        try {
56 >            AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest>
57                  a = AtomicLongFieldUpdater.newUpdater
58 <                (getClass(), "w");
58 >                (AtomicLongFieldUpdaterTest.class, "w");
59              shouldThrow();
60          }
61  
# Line 65 | Line 66 | public class AtomicLongFieldUpdaterTest
66       *  get returns the last value set or assigned
67       */
68      public void testGetSet(){
69 <        AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a = AtomicLongFieldUpdater.newUpdater(getClass(), "x");
69 >        AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a;
70 >        try {
71 >            a = AtomicLongFieldUpdater.newUpdater(AtomicLongFieldUpdaterTest.class, "x");
72 >        } catch (RuntimeException ok) {
73 >            return;
74 >        }
75          x = 1;
76          assertEquals(1,a.get(this));
77          a.set(this,2);
78          assertEquals(2,a.get(this));
79          a.set(this,-3);
80          assertEquals(-3,a.get(this));
75 –        
81      }
82 +
83 +    /**
84 +     *  get returns the last value lazySet by same thread
85 +     */
86 +    public void testGetLazySet(){
87 +        AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a;
88 +        try {
89 +            a = AtomicLongFieldUpdater.newUpdater(AtomicLongFieldUpdaterTest.class, "x");
90 +        } catch (RuntimeException ok) {
91 +            return;
92 +        }
93 +        x = 1;
94 +        assertEquals(1,a.get(this));
95 +        a.lazySet(this,2);
96 +        assertEquals(2,a.get(this));
97 +        a.lazySet(this,-3);
98 +        assertEquals(-3,a.get(this));
99 +    }
100 +
101 +
102      /**
103       * compareAndSet succeeds in changing value if equal to expected else fails
104       */
105      public void testCompareAndSet(){
106 <        AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a = AtomicLongFieldUpdater.newUpdater(getClass(), "x");
106 >        AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a;
107 >        try {
108 >            a = AtomicLongFieldUpdater.newUpdater(AtomicLongFieldUpdaterTest.class, "x");
109 >        } catch (RuntimeException ok) {
110 >            return;
111 >        }
112          x = 1;
113          assertTrue(a.compareAndSet(this,1,2));
114          assertTrue(a.compareAndSet(this,2,-4));
# Line 96 | Line 126 | public class AtomicLongFieldUpdaterTest
126       */
127      public void testCompareAndSetInMultipleThreads() {
128          x = 1;
129 <        final AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest>a = AtomicLongFieldUpdater.newUpdater(getClass(), "x");
129 >        final AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest>a;
130 >        try {
131 >            a = AtomicLongFieldUpdater.newUpdater(AtomicLongFieldUpdaterTest.class, "x");
132 >        } catch (RuntimeException ok) {
133 >            return;
134 >        }
135  
136          Thread t = new Thread(new Runnable() {
137                  public void run() {
138 <                    while(!a.compareAndSet(AtomicLongFieldUpdaterTest.this, 2, 3)) Thread.yield();
138 >                    while (!a.compareAndSet(AtomicLongFieldUpdaterTest.this, 2, 3)) Thread.yield();
139                  }});
140          try {
141              t.start();
# Line 109 | Line 144 | public class AtomicLongFieldUpdaterTest
144              assertFalse(t.isAlive());
145              assertEquals(a.get(this), 3);
146          }
147 <        catch(Exception e) {
147 >        catch (Exception e) {
148              unexpectedException();
149          }
150      }
151  
152      /**
153       * repeated weakCompareAndSet succeeds in changing value when equal
154 <     * to expected
154 >     * to expected
155       */
156      public void testWeakCompareAndSet(){
157 <        AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a = AtomicLongFieldUpdater.newUpdater(getClass(), "x");
157 >        AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a;
158 >        try {
159 >            a = AtomicLongFieldUpdater.newUpdater(AtomicLongFieldUpdaterTest.class, "x");
160 >        } catch (RuntimeException ok) {
161 >            return;
162 >        }
163          x = 1;
164 <        while(!a.weakCompareAndSet(this,1,2));
165 <        while(!a.weakCompareAndSet(this,2,-4));
164 >        while (!a.weakCompareAndSet(this,1,2));
165 >        while (!a.weakCompareAndSet(this,2,-4));
166          assertEquals(-4,a.get(this));
167 <        while(!a.weakCompareAndSet(this,-4,7));
167 >        while (!a.weakCompareAndSet(this,-4,7));
168          assertEquals(7,a.get(this));
169      }
170  
# Line 132 | Line 172 | public class AtomicLongFieldUpdaterTest
172       *  getAndSet returns previous value and sets to given value
173       */
174      public void testGetAndSet(){
175 <        AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a = AtomicLongFieldUpdater.newUpdater(getClass(), "x");
175 >        AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a;
176 >        try {
177 >            a = AtomicLongFieldUpdater.newUpdater(AtomicLongFieldUpdaterTest.class, "x");
178 >        } catch (RuntimeException ok) {
179 >            return;
180 >        }
181          x = 1;
182          assertEquals(1,a.getAndSet(this, 0));
183          assertEquals(0,a.getAndSet(this,-10));
# Line 143 | Line 188 | public class AtomicLongFieldUpdaterTest
188       * getAndAdd returns previous value and adds given value
189       */
190      public void testGetAndAdd(){
191 <        AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a = AtomicLongFieldUpdater.newUpdater(getClass(), "x");
191 >        AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a;
192 >        try {
193 >            a = AtomicLongFieldUpdater.newUpdater(AtomicLongFieldUpdaterTest.class, "x");
194 >        } catch (RuntimeException ok) {
195 >            return;
196 >        }
197          x = 1;
198          assertEquals(1,a.getAndAdd(this,2));
199          assertEquals(3,a.get(this));
# Line 155 | Line 205 | public class AtomicLongFieldUpdaterTest
205       * getAndDecrement returns previous value and decrements
206       */
207      public void testGetAndDecrement(){
208 <        AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a = AtomicLongFieldUpdater.newUpdater(getClass(), "x");
208 >        AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a;
209 >        try {
210 >            a = AtomicLongFieldUpdater.newUpdater(AtomicLongFieldUpdaterTest.class, "x");
211 >        } catch (RuntimeException ok) {
212 >            return;
213 >        }
214          x = 1;
215          assertEquals(1,a.getAndDecrement(this));
216          assertEquals(0,a.getAndDecrement(this));
# Line 166 | Line 221 | public class AtomicLongFieldUpdaterTest
221       * getAndIncrement returns previous value and increments
222       */
223      public void testGetAndIncrement(){
224 <        AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a = AtomicLongFieldUpdater.newUpdater(getClass(), "x");
224 >        AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a;
225 >        try {
226 >            a = AtomicLongFieldUpdater.newUpdater(AtomicLongFieldUpdaterTest.class, "x");
227 >        } catch (RuntimeException ok) {
228 >            return;
229 >        }
230          x = 1;
231          assertEquals(1,a.getAndIncrement(this));
232          assertEquals(2,a.get(this));
# Line 181 | Line 241 | public class AtomicLongFieldUpdaterTest
241       * addAndGet adds given value to current, and returns current value
242       */
243      public void testAddAndGet(){
244 <        AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a = AtomicLongFieldUpdater.newUpdater(getClass(), "x");
244 >        AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a;
245 >        try {
246 >            a = AtomicLongFieldUpdater.newUpdater(AtomicLongFieldUpdaterTest.class, "x");
247 >        } catch (RuntimeException ok) {
248 >            return;
249 >        }
250          x = 1;
251          assertEquals(3,a.addAndGet(this,2));
252          assertEquals(3,a.get(this));
# Line 193 | Line 258 | public class AtomicLongFieldUpdaterTest
258       *  decrementAndGet decrements and returns current value
259       */
260      public void testDecrementAndGet(){
261 <        AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a = AtomicLongFieldUpdater.newUpdater(getClass(), "x");
261 >        AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a;
262 >        try {
263 >            a = AtomicLongFieldUpdater.newUpdater(AtomicLongFieldUpdaterTest.class, "x");
264 >        } catch (RuntimeException ok) {
265 >            return;
266 >        }
267          x = 1;
268          assertEquals(0,a.decrementAndGet(this));
269          assertEquals(-1,a.decrementAndGet(this));
# Line 205 | Line 275 | public class AtomicLongFieldUpdaterTest
275       * incrementAndGet increments and returns current value
276       */
277      public void testIncrementAndGet(){
278 <        AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a = AtomicLongFieldUpdater.newUpdater(getClass(), "x");
278 >        AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a;
279 >        try {
280 >            a = AtomicLongFieldUpdater.newUpdater(AtomicLongFieldUpdaterTest.class, "x");
281 >        } catch (RuntimeException ok) {
282 >            return;
283 >        }
284          x = 1;
285          assertEquals(2,a.incrementAndGet(this));
286          assertEquals(2,a.get(this));

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