ViewVC Help

View File | Revision Log | Show Annotations | Download File | Root Listing

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

Comparing jsr166/src/test/tck/AtomicReferenceFieldUpdaterTest.java (file contents):
Revision 1.18 by jsr166, Tue Dec 1 09:56:28 2009 UTC vs.
Revision 1.26 by jsr166, Mon Apr 1 20:58:58 2013 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.*;
9		import junit.framework.*;
10	<	import java.util.*;
10	>	import java.util.concurrent.atomic.AtomicReferenceFieldUpdater;
11
12		public class AtomicReferenceFieldUpdaterTest extends JSR166TestCase {
13		volatile Integer x = null;
#	Line 22 | Line 21 | public class AtomicReferenceFieldUpdater
21		return new TestSuite(AtomicReferenceFieldUpdaterTest.class);
22		}
23
24	+	AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer> updaterFor(String fieldName) {
25	+	return AtomicReferenceFieldUpdater.newUpdater
26	+	(AtomicReferenceFieldUpdaterTest.class, Integer.class, fieldName);
27	+	}
28	+
29		/**
30		* Construction with non-existent field throws RuntimeException
31		*/
32		public void testConstructor() {
33		try {
34	<	AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>
31	<	a = AtomicReferenceFieldUpdater.newUpdater
32	<	(AtomicReferenceFieldUpdaterTest.class, Integer.class, "y");
34	>	updaterFor("y");
35		shouldThrow();
36		} catch (RuntimeException success) {}
37		}
38
37	–
39		/**
40		* construction with field not of given type throws RuntimeException
41		*/
42		public void testConstructor2() {
43		try {
44	<	AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>
44	<	a = AtomicReferenceFieldUpdater.newUpdater
45	<	(AtomicReferenceFieldUpdaterTest.class, Integer.class, "z");
44	>	updaterFor("z");
45		shouldThrow();
46		} catch (RuntimeException success) {}
47		}
#	Line 52 | Line 51 | public class AtomicReferenceFieldUpdater
51		*/
52		public void testConstructor3() {
53		try {
54	<	AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>
56	<	a = AtomicReferenceFieldUpdater.newUpdater
57	<	(AtomicReferenceFieldUpdaterTest.class, Integer.class, "w");
54	>	updaterFor("w");
55		shouldThrow();
56		} catch (RuntimeException success) {}
57		}
58
59		/**
60	<	*  get returns the last value set or assigned
60	>	* get returns the last value set or assigned
61		*/
62		public void testGetSet() {
63		AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
64	<	try {
68	<	a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
69	<	} catch (RuntimeException ok) {
70	<	return;
71	<	}
64	>	a = updaterFor("x");
65		x = one;
66	<	assertSame(one,a.get(this));
67	<	a.set(this,two);
68	<	assertSame(two,a.get(this));
69	<	a.set(this,m3);
70	<	assertSame(m3,a.get(this));
66	>	assertSame(one, a.get(this));
67	>	a.set(this, two);
68	>	assertSame(two, a.get(this));
69	>	a.set(this, m3);
70	>	assertSame(m3, a.get(this));
71		}
72
73		/**
74	<	*  get returns the last value lazySet by same thread
74	>	* get returns the last value lazySet by same thread
75		*/
76		public void testGetLazySet() {
77		AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
78	<	try {
79	<	a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
80	<	} catch (RuntimeException ok) {
81	<	return;
82	<	}
83	<	x = one;
84	<	assertSame(one,a.get(this));
92	<	a.lazySet(this,two);
93	<	assertSame(two,a.get(this));
94	<	a.lazySet(this,m3);
95	<	assertSame(m3,a.get(this));
78	>	a = updaterFor("x");
79	>	x = one;
80	>	assertSame(one, a.get(this));
81	>	a.lazySet(this, two);
82	>	assertSame(two, a.get(this));
83	>	a.lazySet(this, m3);
84	>	assertSame(m3, a.get(this));
85		}
86
87		/**
#	Line 100 | Line 89 | public class AtomicReferenceFieldUpdater
89		*/
90		public void testCompareAndSet() {
91		AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
92	<	try {
93	<	a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
94	<	} catch (RuntimeException ok) {
95	<	return;
96	<	}
97	<	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));
92	>	a = updaterFor("x");
93	>	x = one;
94	>	assertTrue(a.compareAndSet(this, one, two));
95	>	assertTrue(a.compareAndSet(this, two, m4));
96	>	assertSame(m4, a.get(this));
97	>	assertFalse(a.compareAndSet(this, m5, seven));
98		assertFalse(seven == a.get(this));
99	<	assertTrue(a.compareAndSet(this,m4,seven));
100	<	assertSame(seven,a.get(this));
99	>	assertTrue(a.compareAndSet(this, m4, seven));
100	>	assertSame(seven, a.get(this));
101		}
102
103		/**
#	Line 122 | Line 107 | public class AtomicReferenceFieldUpdater
107		public void testCompareAndSetInMultipleThreads() throws Exception {
108		x = one;
109		final AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
110	<	try {
126	<	a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
127	<	} catch (RuntimeException ok) {
128	<	return;
129	<	}
110	>	a = updaterFor("x");
111
112		Thread t = new Thread(new CheckedRunnable() {
113		public void realRun() {
#	Line 138 | Line 119 | public class AtomicReferenceFieldUpdater
119		assertTrue(a.compareAndSet(this, one, two));
120		t.join(LONG_DELAY_MS);
121		assertFalse(t.isAlive());
122	<	assertSame(a.get(this), three);
122	>	assertSame(three, a.get(this));
123		}
124
125		/**
#	Line 147 | Line 128 | public class AtomicReferenceFieldUpdater
128		*/
129		public void testWeakCompareAndSet() {
130		AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
131	<	try {
132	<	a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
133	<	} catch (RuntimeException ok) {
134	<	return;
135	<	}
136	<	x = one;
137	<	while (!a.weakCompareAndSet(this,one,two));
157	<	while (!a.weakCompareAndSet(this,two,m4));
158	<	assertSame(m4,a.get(this));
159	<	while (!a.weakCompareAndSet(this,m4,seven));
160	<	assertSame(seven,a.get(this));
131	>	a = updaterFor("x");
132	>	x = one;
133	>	while (!a.weakCompareAndSet(this, one, two));
134	>	while (!a.weakCompareAndSet(this, two, m4));
135	>	assertSame(m4, a.get(this));
136	>	while (!a.weakCompareAndSet(this, m4, seven));
137	>	assertSame(seven, a.get(this));
138		}
139
140		/**
#	Line 165 | Line 142 | public class AtomicReferenceFieldUpdater
142		*/
143		public void testGetAndSet() {
144		AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
145	<	try {
146	<	a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
147	<	} catch (RuntimeException ok) {
148	<	return;
149	<	}
173	<	x = one;
174	<	assertSame(one,a.getAndSet(this, zero));
175	<	assertSame(zero,a.getAndSet(this,m10));
176	<	assertSame(m10,a.getAndSet(this,1));
145	>	a = updaterFor("x");
146	>	x = one;
147	>	assertSame(one, a.getAndSet(this, zero));
148	>	assertSame(zero, a.getAndSet(this, m10));
149	>	assertSame(m10, a.getAndSet(this, 1));
150		}
151
152		}

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines