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Comparing jsr166/src/test/tck/AtomicReferenceFieldUpdaterTest.java (file contents):
Revision 1.18 by jsr166, Tue Dec 1 09:56:28 2009 UTC vs.
Revision 1.31 by jsr166, Wed Dec 31 19:21:20 2014 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 java.util.concurrent.atomic.*;
10 < import junit.framework.*;
11 < import java.util.*;
9 > import java.util.concurrent.atomic.AtomicReferenceFieldUpdater;
10 >
11 > import junit.framework.Test;
12 > import junit.framework.TestSuite;
13  
14   public class AtomicReferenceFieldUpdaterTest extends JSR166TestCase {
15      volatile Integer x = null;
16      Object z;
17      Integer w;
18 +    volatile int i;
19  
20      public static void main(String[] args) {
21          junit.textui.TestRunner.run(suite());
# Line 22 | Line 24 | public class AtomicReferenceFieldUpdater
24          return new TestSuite(AtomicReferenceFieldUpdaterTest.class);
25      }
26  
27 +    AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer> updaterFor(String fieldName) {
28 +        return AtomicReferenceFieldUpdater.newUpdater
29 +            (AtomicReferenceFieldUpdaterTest.class, Integer.class, fieldName);
30 +    }
31 +
32      /**
33       * Construction with non-existent field throws RuntimeException
34       */
35      public void testConstructor() {
36          try {
37 <            AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>
31 <                a = AtomicReferenceFieldUpdater.newUpdater
32 <                (AtomicReferenceFieldUpdaterTest.class, Integer.class, "y");
37 >            updaterFor("y");
38              shouldThrow();
39 <        } catch (RuntimeException success) {}
39 >        } catch (RuntimeException success) {
40 >            assertNotNull(success.getCause());
41 >        }
42      }
43  
37 –
44      /**
45 <     * construction with field not of given type throws RuntimeException
45 >     * construction with field not of given type throws ClassCastException
46       */
47      public void testConstructor2() {
48          try {
49 <            AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>
44 <                a = AtomicReferenceFieldUpdater.newUpdater
45 <                (AtomicReferenceFieldUpdaterTest.class, Integer.class, "z");
49 >            updaterFor("z");
50              shouldThrow();
51 <        } catch (RuntimeException success) {}
51 >        } catch (ClassCastException success) {}
52      }
53  
54      /**
55 <     * Constructor with non-volatile field throws exception
55 >     * Constructor with non-volatile field throws IllegalArgumentException
56       */
57      public void testConstructor3() {
58          try {
59 <            AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>
60 <                a = AtomicReferenceFieldUpdater.newUpdater
61 <                (AtomicReferenceFieldUpdaterTest.class, Integer.class, "w");
59 >            updaterFor("w");
60 >            shouldThrow();
61 >        } catch (IllegalArgumentException success) {}
62 >    }
63 >
64 >    /**
65 >     * Constructor with non-reference field throws ClassCastException
66 >     */
67 >    public void testConstructor4() {
68 >        try {
69 >            updaterFor("i");
70              shouldThrow();
71 <        } catch (RuntimeException success) {}
71 >        } catch (ClassCastException success) {}
72      }
73  
74      /**
75 <     *  get returns the last value set or assigned
75 >     * get returns the last value set or assigned
76       */
77      public void testGetSet() {
78          AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
79 <        try {
68 <            a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
69 <        } catch (RuntimeException ok) {
70 <            return;
71 <        }
79 >        a = updaterFor("x");
80          x = one;
81 <        assertSame(one,a.get(this));
82 <        a.set(this,two);
83 <        assertSame(two,a.get(this));
84 <        a.set(this,m3);
85 <        assertSame(m3,a.get(this));
81 >        assertSame(one, a.get(this));
82 >        a.set(this, two);
83 >        assertSame(two, a.get(this));
84 >        a.set(this, m3);
85 >        assertSame(m3, a.get(this));
86      }
87  
88      /**
89 <     *  get returns the last value lazySet by same thread
89 >     * get returns the last value lazySet by same thread
90       */
91      public void testGetLazySet() {
92          AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
93 <        try {
86 <            a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
87 <        } catch (RuntimeException ok) {
88 <            return;
89 <        }
93 >        a = updaterFor("x");
94          x = one;
95 <        assertSame(one,a.get(this));
96 <        a.lazySet(this,two);
97 <        assertSame(two,a.get(this));
98 <        a.lazySet(this,m3);
99 <        assertSame(m3,a.get(this));
95 >        assertSame(one, a.get(this));
96 >        a.lazySet(this, two);
97 >        assertSame(two, a.get(this));
98 >        a.lazySet(this, m3);
99 >        assertSame(m3, a.get(this));
100      }
101  
102      /**
# Line 100 | Line 104 | public class AtomicReferenceFieldUpdater
104       */
105      public void testCompareAndSet() {
106          AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
107 <        try {
104 <            a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
105 <        } catch (RuntimeException ok) {
106 <            return;
107 <        }
107 >        a = updaterFor("x");
108          x = one;
109 <        assertTrue(a.compareAndSet(this,one,two));
110 <        assertTrue(a.compareAndSet(this,two,m4));
111 <        assertSame(m4,a.get(this));
112 <        assertFalse(a.compareAndSet(this,m5,seven));
109 >        assertTrue(a.compareAndSet(this, one, two));
110 >        assertTrue(a.compareAndSet(this, two, m4));
111 >        assertSame(m4, a.get(this));
112 >        assertFalse(a.compareAndSet(this, m5, seven));
113          assertFalse(seven == a.get(this));
114 <        assertTrue(a.compareAndSet(this,m4,seven));
115 <        assertSame(seven,a.get(this));
114 >        assertTrue(a.compareAndSet(this, m4, seven));
115 >        assertSame(seven, a.get(this));
116      }
117  
118      /**
# Line 122 | Line 122 | public class AtomicReferenceFieldUpdater
122      public void testCompareAndSetInMultipleThreads() throws Exception {
123          x = one;
124          final AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
125 <        try {
126 <            a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
127 <        } catch (RuntimeException ok) {
128 <            return;
129 <        }
125 >        a = updaterFor("x");
126  
127          Thread t = new Thread(new CheckedRunnable() {
128              public void realRun() {
# Line 138 | Line 134 | public class AtomicReferenceFieldUpdater
134          assertTrue(a.compareAndSet(this, one, two));
135          t.join(LONG_DELAY_MS);
136          assertFalse(t.isAlive());
137 <        assertSame(a.get(this), three);
137 >        assertSame(three, a.get(this));
138      }
139  
140      /**
# Line 147 | Line 143 | public class AtomicReferenceFieldUpdater
143       */
144      public void testWeakCompareAndSet() {
145          AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
146 <        try {
151 <            a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
152 <        } catch (RuntimeException ok) {
153 <            return;
154 <        }
146 >        a = updaterFor("x");
147          x = one;
148 <        while (!a.weakCompareAndSet(this,one,two));
149 <        while (!a.weakCompareAndSet(this,two,m4));
150 <        assertSame(m4,a.get(this));
151 <        while (!a.weakCompareAndSet(this,m4,seven));
152 <        assertSame(seven,a.get(this));
148 >        do {} while (!a.weakCompareAndSet(this, one, two));
149 >        do {} while (!a.weakCompareAndSet(this, two, m4));
150 >        assertSame(m4, a.get(this));
151 >        do {} while (!a.weakCompareAndSet(this, m4, seven));
152 >        assertSame(seven, a.get(this));
153      }
154  
155      /**
# Line 165 | Line 157 | public class AtomicReferenceFieldUpdater
157       */
158      public void testGetAndSet() {
159          AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
160 <        try {
169 <            a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
170 <        } catch (RuntimeException ok) {
171 <            return;
172 <        }
160 >        a = updaterFor("x");
161          x = one;
162 <        assertSame(one,a.getAndSet(this, zero));
163 <        assertSame(zero,a.getAndSet(this,m10));
164 <        assertSame(m10,a.getAndSet(this,1));
162 >        assertSame(one, a.getAndSet(this, zero));
163 >        assertSame(zero, a.getAndSet(this, m10));
164 >        assertSame(m10, a.getAndSet(this, 1));
165      }
166  
167   }

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