13 |
|
|
14 |
|
public class AtomicReferenceFieldUpdaterTest extends JSR166TestCase { |
15 |
|
volatile Integer x = null; |
16 |
+ |
protected volatile Integer protectedField; |
17 |
+ |
private volatile Integer privateField; |
18 |
|
Object z; |
19 |
|
Integer w; |
20 |
|
volatile int i; |
21 |
|
|
22 |
|
public static void main(String[] args) { |
23 |
< |
junit.textui.TestRunner.run(suite()); |
23 |
> |
main(suite(), args); |
24 |
|
} |
25 |
|
public static Test suite() { |
26 |
|
return new TestSuite(AtomicReferenceFieldUpdaterTest.class); |
27 |
|
} |
28 |
|
|
29 |
< |
AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer> updaterFor(String fieldName) { |
29 |
> |
static AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer> updaterFor(String fieldName) { |
30 |
|
return AtomicReferenceFieldUpdater.newUpdater |
31 |
|
(AtomicReferenceFieldUpdaterTest.class, Integer.class, fieldName); |
32 |
|
} |
74 |
|
} |
75 |
|
|
76 |
|
/** |
77 |
+ |
* construction using private field from subclass throws RuntimeException |
78 |
+ |
*/ |
79 |
+ |
public void testPrivateFieldInSubclass() { |
80 |
+ |
new NonNestmates.AtomicReferenceFieldUpdaterTestSubclass() |
81 |
+ |
.checkPrivateAccess(); |
82 |
+ |
} |
83 |
+ |
|
84 |
+ |
/** |
85 |
+ |
* construction from unrelated class; package access is allowed, |
86 |
+ |
* private access is not |
87 |
+ |
*/ |
88 |
+ |
public void testUnrelatedClassAccess() { |
89 |
+ |
new NonNestmates().checkPackageAccess(this); |
90 |
+ |
new NonNestmates().checkPrivateAccess(this); |
91 |
+ |
} |
92 |
+ |
|
93 |
+ |
/** |
94 |
|
* get returns the last value set or assigned |
95 |
|
*/ |
96 |
|
public void testGetSet() { |
97 |
< |
AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a; |
97 |
> |
AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer> a; |
98 |
|
a = updaterFor("x"); |
99 |
|
x = one; |
100 |
|
assertSame(one, a.get(this)); |
108 |
|
* get returns the last value lazySet by same thread |
109 |
|
*/ |
110 |
|
public void testGetLazySet() { |
111 |
< |
AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a; |
111 |
> |
AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer> a; |
112 |
|
a = updaterFor("x"); |
113 |
|
x = one; |
114 |
|
assertSame(one, a.get(this)); |
122 |
|
* compareAndSet succeeds in changing value if equal to expected else fails |
123 |
|
*/ |
124 |
|
public void testCompareAndSet() { |
125 |
< |
AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a; |
125 |
> |
AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer> a; |
126 |
|
a = updaterFor("x"); |
127 |
|
x = one; |
128 |
|
assertTrue(a.compareAndSet(this, one, two)); |
129 |
|
assertTrue(a.compareAndSet(this, two, m4)); |
130 |
|
assertSame(m4, a.get(this)); |
131 |
|
assertFalse(a.compareAndSet(this, m5, seven)); |
132 |
< |
assertFalse(seven == a.get(this)); |
132 |
> |
assertNotSame(seven, a.get(this)); |
133 |
|
assertTrue(a.compareAndSet(this, m4, seven)); |
134 |
|
assertSame(seven, a.get(this)); |
135 |
|
} |
140 |
|
*/ |
141 |
|
public void testCompareAndSetInMultipleThreads() throws Exception { |
142 |
|
x = one; |
143 |
< |
final AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a; |
143 |
> |
final AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer> a; |
144 |
|
a = updaterFor("x"); |
145 |
|
|
146 |
|
Thread t = new Thread(new CheckedRunnable() { |
161 |
|
* to expected |
162 |
|
*/ |
163 |
|
public void testWeakCompareAndSet() { |
164 |
< |
AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a; |
164 |
> |
AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer> a; |
165 |
|
a = updaterFor("x"); |
166 |
|
x = one; |
167 |
|
do {} while (!a.weakCompareAndSet(this, one, two)); |
175 |
|
* getAndSet returns previous value and sets to given value |
176 |
|
*/ |
177 |
|
public void testGetAndSet() { |
178 |
< |
AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a; |
178 |
> |
AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer> a; |
179 |
|
a = updaterFor("x"); |
180 |
|
x = one; |
181 |
|
assertSame(one, a.getAndSet(this, zero)); |