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

Comparing jsr166/src/test/tck/AtomicReferenceFieldUpdaterTest.java (file contents):
Revision 1.24 by jsr166, Fri Jun 10 20:01:21 2011 UTC vs.
Revision 1.32 by jsr166, Wed Dec 31 21:50:25 2014 UTC

#	Line 6 | Line 6
6		* Pat Fisher, Mike Judd.
7		*/
8
9	–	import junit.framework.*;
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 21 | 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>
30	<	a = AtomicReferenceFieldUpdater.newUpdater
31	<	(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
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>
42	<	a = AtomicReferenceFieldUpdater.newUpdater
43	<	(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>
54	<	a = AtomicReferenceFieldUpdater.newUpdater
55	<	(AtomicReferenceFieldUpdaterTest.class, Integer.class, "w");
59	>	updaterFor("w");
60		shouldThrow();
61	<	} catch (RuntimeException success) {}
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 (ClassCastException success) {}
72		}
73
74		/**
75		* get returns the last value set or assigned
76		*/
77		public void testGetSet() {
78	<	AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
79	<	try {
66	<	a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
67	<	} catch (RuntimeException ok) {
68	<	return;
69	<	}
78	>	AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer> a;
79	>	a = updaterFor("x");
80		x = one;
81		assertSame(one, a.get(this));
82		a.set(this, two);
#	Line 79 | Line 89 | public class AtomicReferenceFieldUpdater
89		* get returns the last value lazySet by same thread
90		*/
91		public void testGetLazySet() {
92	<	AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
93	<	try {
84	<	a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
85	<	} catch (RuntimeException ok) {
86	<	return;
87	<	}
92	>	AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer> a;
93	>	a = updaterFor("x");
94		x = one;
95		assertSame(one, a.get(this));
96		a.lazySet(this, two);
#	Line 97 | Line 103 | public class AtomicReferenceFieldUpdater
103		* compareAndSet succeeds in changing value if equal to expected else fails
104		*/
105		public void testCompareAndSet() {
106	<	AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
107	<	try {
102	<	a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
103	<	} catch (RuntimeException ok) {
104	<	return;
105	<	}
106	>	AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer> a;
107	>	a = updaterFor("x");
108		x = one;
109		assertTrue(a.compareAndSet(this, one, two));
110		assertTrue(a.compareAndSet(this, two, m4));
#	Line 119 | Line 121 | public class AtomicReferenceFieldUpdater
121		*/
122		public void testCompareAndSetInMultipleThreads() throws Exception {
123		x = one;
124	<	final AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
125	<	try {
124	<	a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
125	<	} catch (RuntimeException ok) {
126	<	return;
127	<	}
124	>	final AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer> a;
125	>	a = updaterFor("x");
126
127		Thread t = new Thread(new CheckedRunnable() {
128		public void realRun() {
#	Line 136 | 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 144 | Line 142 | public class AtomicReferenceFieldUpdater
142		* to expected
143		*/
144		public void testWeakCompareAndSet() {
145	<	AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
146	<	try {
149	<	a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
150	<	} catch (RuntimeException ok) {
151	<	return;
152	<	}
145	>	AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer> a;
146	>	a = updaterFor("x");
147		x = one;
148	<	while (!a.weakCompareAndSet(this, one, two));
149	<	while (!a.weakCompareAndSet(this, two, m4));
148	>	do {} while (!a.weakCompareAndSet(this, one, two));
149	>	do {} while (!a.weakCompareAndSet(this, two, m4));
150		assertSame(m4, a.get(this));
151	<	while (!a.weakCompareAndSet(this, m4, seven));
151	>	do {} while (!a.weakCompareAndSet(this, m4, seven));
152		assertSame(seven, a.get(this));
153		}
154
#	Line 162 | Line 156 | public class AtomicReferenceFieldUpdater
156		* getAndSet returns previous value and sets to given value
157		*/
158		public void testGetAndSet() {
159	<	AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
160	<	try {
167	<	a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
168	<	} catch (RuntimeException ok) {
169	<	return;
170	<	}
159	>	AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer> a;
160	>	a = updaterFor("x");
161		x = one;
162		assertSame(one, a.getAndSet(this, zero));
163		assertSame(zero, a.getAndSet(this, m10));

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