ViewVC Help

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

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

Comparing jsr166/src/test/tck/AtomicBooleanTest.java (file contents):
Revision 1.4 by dl, Sat Sep 20 18:20:07 2003 UTC vs.
Revision 1.13 by jsr166, Tue Nov 17 03:12:51 2009 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by members of JCP JSR-166 Expert Group and released to the
3	<	* public domain. Use, modify, and redistribute this code in any way
4	<	* without acknowledgement. Other contributors include Andrew Wright,
5	<	* Jeffrey Hayes, Pat Fischer, Mike Judd.
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
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9		import junit.framework.*;
#	Line 18 | Line 19 | public class AtomicBooleanTest extends J
19		}
20
21		/**
22	<	*
22	>	* constructor initializes to given value
23		*/
24		public void testConstructor() {
25		AtomicBoolean ai = new AtomicBoolean(true);
#	Line 26 | Line 27 | public class AtomicBooleanTest extends J
27		}
28
29		/**
30	<	*
30	>	* default constructed initializes to false
31		*/
32		public void testConstructor2() {
33		AtomicBoolean ai = new AtomicBoolean();
#	Line 34 | Line 35 | public class AtomicBooleanTest extends J
35		}
36
37		/**
38	<	*
38	>	* get returns the last value set
39		*/
40		public void testGetSet() {
41		AtomicBoolean ai = new AtomicBoolean(true);
#	Line 43 | Line 44 | public class AtomicBooleanTest extends J
44		assertEquals(false,ai.get());
45		ai.set(true);
46		assertEquals(true,ai.get());
47	<
47	>
48		}
49	+
50	+	/**
51	+	* get returns the last value lazySet in same thread
52	+	*/
53	+	public void testGetLazySet() {
54	+	AtomicBoolean ai = new AtomicBoolean(true);
55	+	assertEquals(true,ai.get());
56	+	ai.lazySet(false);
57	+	assertEquals(false,ai.get());
58	+	ai.lazySet(true);
59	+	assertEquals(true,ai.get());
60	+
61	+	}
62	+
63		/**
64	<	*
64	>	* compareAndSet succeeds in changing value if equal to expected else fails
65		*/
66		public void testCompareAndSet() {
67		AtomicBoolean ai = new AtomicBoolean(true);
#	Line 61 | Line 76 | public class AtomicBooleanTest extends J
76		}
77
78		/**
79	<	*
79	>	* compareAndSet in one thread enables another waiting for value
80	>	* to succeed
81	>	*/
82	>	public void testCompareAndSetInMultipleThreads() throws Exception {
83	>	final AtomicBoolean ai = new AtomicBoolean(true);
84	>	Thread t = new Thread(new Runnable() {
85	>	public void run() {
86	>	while (!ai.compareAndSet(false, true)) Thread.yield();
87	>	}});
88	>
89	>	t.start();
90	>	assertTrue(ai.compareAndSet(true, false));
91	>	t.join(LONG_DELAY_MS);
92	>	assertFalse(t.isAlive());
93	>	}
94	>
95	>	/**
96	>	* repeated weakCompareAndSet succeeds in changing value when equal
97	>	* to expected
98		*/
99		public void testWeakCompareAndSet() {
100		AtomicBoolean ai = new AtomicBoolean(true);
101	<	while(!ai.weakCompareAndSet(true,false));
101	>	while (!ai.weakCompareAndSet(true,false));
102		assertEquals(false,ai.get());
103	<	while(!ai.weakCompareAndSet(false,false));
103	>	while (!ai.weakCompareAndSet(false,false));
104		assertEquals(false,ai.get());
105	<	while(!ai.weakCompareAndSet(false,true));
105	>	while (!ai.weakCompareAndSet(false,true));
106		assertEquals(true,ai.get());
107		}
108
109		/**
110	<	*
110	>	* getAndSet returns previous value and sets to given value
111		*/
112		public void testGetAndSet() {
113		AtomicBoolean ai = new AtomicBoolean(true);
#	Line 85 | Line 118 | public class AtomicBooleanTest extends J
118		}
119
120		/**
121	<	*
121	>	* a deserialized serialized atomic holds same value
122		*/
123	<	public void testSerialization() {
123	>	public void testSerialization() throws Exception {
124		AtomicBoolean l = new AtomicBoolean();
125
126	<	try {
127	<	l.set(true);
128	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
129	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
130	<	out.writeObject(l);
131	<	out.close();
132	<
133	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
134	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
135	<	AtomicBoolean r = (AtomicBoolean) in.readObject();
103	<	assertEquals(l.get(), r.get());
104	<	} catch(Exception e){
105	<	e.printStackTrace();
106	<	unexpectedException();
107	<	}
126	>	l.set(true);
127	>	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
128	>	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
129	>	out.writeObject(l);
130	>	out.close();
131	>
132	>	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
133	>	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
134	>	AtomicBoolean r = (AtomicBoolean) in.readObject();
135	>	assertEquals(l.get(), r.get());
136		}
137
138	+	/**
139	+	* toString returns current value.
140	+	*/
141	+	public void testToString() {
142	+	AtomicBoolean ai = new AtomicBoolean();
143	+	assertEquals(ai.toString(), Boolean.toString(false));
144	+	ai.set(true);
145	+	assertEquals(ai.toString(), Boolean.toString(true));
146	+	}
147
148		}

Diff Legend

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