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Comparing jsr166/src/test/tck/AtomicReferenceFieldUpdaterTest.java (file contents):
Revision 1.25 by jsr166, Fri Jun 10 20:17:11 2011 UTC vs.
Revision 1.36 by jsr166, Wed Sep 20 00:41:13 2017 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	+	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	+	static AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer> updaterFor(String fieldName) {
30	+	return AtomicReferenceFieldUpdater.newUpdater
31	+	(AtomicReferenceFieldUpdaterTest.class, Integer.class, fieldName);
32	+	}
33	+
34		/**
35		* Construction with non-existent field throws RuntimeException
36		*/
37		public void testConstructor() {
38		try {
39	<	AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>
30	<	a = AtomicReferenceFieldUpdater.newUpdater
31	<	(AtomicReferenceFieldUpdaterTest.class, Integer.class, "y");
39	>	updaterFor("y");
40		shouldThrow();
41	<	} catch (RuntimeException success) {}
41	>	} catch (RuntimeException success) {
42	>	assertNotNull(success.getCause());
43	>	}
44		}
45
46		/**
47	<	* construction with field not of given type throws RuntimeException
47	>	* construction with field not of given type throws ClassCastException
48		*/
49		public void testConstructor2() {
50		try {
51	<	AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>
42	<	a = AtomicReferenceFieldUpdater.newUpdater
43	<	(AtomicReferenceFieldUpdaterTest.class, Integer.class, "z");
51	>	updaterFor("z");
52		shouldThrow();
53	<	} catch (RuntimeException success) {}
53	>	} catch (ClassCastException success) {}
54		}
55
56		/**
57	<	* Constructor with non-volatile field throws exception
57	>	* Constructor with non-volatile field throws IllegalArgumentException
58		*/
59		public void testConstructor3() {
60		try {
61	<	AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>
54	<	a = AtomicReferenceFieldUpdater.newUpdater
55	<	(AtomicReferenceFieldUpdaterTest.class, Integer.class, "w");
61	>	updaterFor("w");
62		shouldThrow();
63	<	} catch (RuntimeException success) {}
63	>	} catch (IllegalArgumentException success) {}
64	>	}
65	>
66	>	/**
67	>	* Constructor with non-reference field throws ClassCastException
68	>	*/
69	>	public void testConstructor4() {
70	>	try {
71	>	updaterFor("i");
72	>	shouldThrow();
73	>	} catch (ClassCastException success) {}
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;
98	<	try {
66	<	a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
67	<	} catch (RuntimeException ok) {
68	<	return;
69	<	}
97	>	AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer> a;
98	>	a = updaterFor("x");
99		x = one;
100		assertSame(one, a.get(this));
101		a.set(this, two);
#	Line 79 | Line 108 | public class AtomicReferenceFieldUpdater
108		* get returns the last value lazySet by same thread
109		*/
110		public void testGetLazySet() {
111	<	AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
112	<	try {
84	<	a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
85	<	} catch (RuntimeException ok) {
86	<	return;
87	<	}
111	>	AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer> a;
112	>	a = updaterFor("x");
113		x = one;
114		assertSame(one, a.get(this));
115		a.lazySet(this, two);
#	Line 97 | Line 122 | public class AtomicReferenceFieldUpdater
122		* compareAndSet succeeds in changing value if equal to expected else fails
123		*/
124		public void testCompareAndSet() {
125	<	AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
126	<	try {
102	<	a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
103	<	} catch (RuntimeException ok) {
104	<	return;
105	<	}
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		}
#	Line 119 | Line 140 | public class AtomicReferenceFieldUpdater
140		*/
141		public void testCompareAndSetInMultipleThreads() throws Exception {
142		x = one;
143	<	final AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
144	<	try {
124	<	a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
125	<	} catch (RuntimeException ok) {
126	<	return;
127	<	}
143	>	final AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer> a;
144	>	a = updaterFor("x");
145
146		Thread t = new Thread(new CheckedRunnable() {
147		public void realRun() {
#	Line 144 | Line 161 | public class AtomicReferenceFieldUpdater
161		* to expected
162		*/
163		public void testWeakCompareAndSet() {
164	<	AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
165	<	try {
149	<	a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
150	<	} catch (RuntimeException ok) {
151	<	return;
152	<	}
164	>	AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer> a;
165	>	a = updaterFor("x");
166		x = one;
167	<	while (!a.weakCompareAndSet(this, one, two));
168	<	while (!a.weakCompareAndSet(this, two, m4));
167	>	do {} while (!a.weakCompareAndSet(this, one, two));
168	>	do {} while (!a.weakCompareAndSet(this, two, m4));
169		assertSame(m4, a.get(this));
170	<	while (!a.weakCompareAndSet(this, m4, seven));
170	>	do {} while (!a.weakCompareAndSet(this, m4, seven));
171		assertSame(seven, a.get(this));
172		}
173
#	Line 162 | Line 175 | public class AtomicReferenceFieldUpdater
175		* getAndSet returns previous value and sets to given value
176		*/
177		public void testGetAndSet() {
178	<	AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a;
179	<	try {
167	<	a = AtomicReferenceFieldUpdater.newUpdater(AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
168	<	} catch (RuntimeException ok) {
169	<	return;
170	<	}
178	>	AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer> a;
179	>	a = updaterFor("x");
180		x = one;
181		assertSame(one, a.getAndSet(this, zero));
182		assertSame(zero, a.getAndSet(this, m10));

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