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

Comparing jsr166/src/test/tck/AtomicBooleanTest.java (file contents):
Revision 1.2 by dl, Sun Sep 7 20:39:11 2003 UTC vs.
Revision 1.5 by dl, Thu Sep 25 11:02:41 2003 UTC

#	Line 9 | Line 9 | import junit.framework.*;
9		import java.util.concurrent.atomic.*;
10		import java.io.*;
11
12	<	public class AtomicBooleanTest extends TestCase {
12	>	public class AtomicBooleanTest extends JSR166TestCase {
13		public static void main (String[] args) {
14		junit.textui.TestRunner.run (suite());
15		}
#	Line 17 | Line 17 | public class AtomicBooleanTest extends T
17		return new TestSuite(AtomicBooleanTest.class);
18		}
19
20	<	public void testConstructor(){
20	>	/**
21	>	* constructor initializes to given value
22	>	*/
23	>	public void testConstructor() {
24		AtomicBoolean ai = new AtomicBoolean(true);
25		assertEquals(true,ai.get());
26		}
27
28	<	public void testConstructor2(){
28	>	/**
29	>	* default constructed intializes to false
30	>	*/
31	>	public void testConstructor2() {
32		AtomicBoolean ai = new AtomicBoolean();
33		assertEquals(false,ai.get());
34		}
35
36	<	public void testGetSet(){
36	>	/**
37	>	* get returns the last value set
38	>	*/
39	>	public void testGetSet() {
40		AtomicBoolean ai = new AtomicBoolean(true);
41		assertEquals(true,ai.get());
42		ai.set(false);
#	Line 36 | Line 45 | public class AtomicBooleanTest extends T
45		assertEquals(true,ai.get());
46
47		}
48	<	public void testCompareAndSet(){
48	>
49	>	/**
50	>	* compareAndSet succeeds in changing value if equal to expected else fails
51	>	*/
52	>	public void testCompareAndSet() {
53		AtomicBoolean ai = new AtomicBoolean(true);
54		assertTrue(ai.compareAndSet(true,false));
55		assertEquals(false,ai.get());
#	Line 48 | Line 61 | public class AtomicBooleanTest extends T
61		assertEquals(true,ai.get());
62		}
63
64	<	public void testWeakCompareAndSet(){
64	>	/**
65	>	* compareAndSet in one thread enables another waiting for value
66	>	* to succeed
67	>	*/
68	>	public void testCompareAndSetInMultipleThreads() {
69	>	final AtomicBoolean ai = new AtomicBoolean(true);
70	>	Thread t = new Thread(new Runnable() {
71	>	public void run() {
72	>	while(!ai.compareAndSet(false, true)) Thread.yield();
73	>	}});
74	>	try {
75	>	t.start();
76	>	assertTrue(ai.compareAndSet(true, false));
77	>	t.join(LONG_DELAY_MS);
78	>	assertFalse(t.isAlive());
79	>	}
80	>	catch(Exception e) {
81	>	unexpectedException();
82	>	}
83	>	}
84	>
85	>	/**
86	>	* repeated weakCompareAndSet succeeds in changing value when equal
87	>	* to expected
88	>	*/
89	>	public void testWeakCompareAndSet() {
90		AtomicBoolean ai = new AtomicBoolean(true);
91		while(!ai.weakCompareAndSet(true,false));
92		assertEquals(false,ai.get());
#	Line 58 | Line 96 | public class AtomicBooleanTest extends T
96		assertEquals(true,ai.get());
97		}
98
99	<	public void testGetAndSet(){
99	>	/**
100	>	* getAndSet returns previous value and sets to given value
101	>	*/
102	>	public void testGetAndSet() {
103		AtomicBoolean ai = new AtomicBoolean(true);
104		assertEquals(true,ai.getAndSet(false));
105		assertEquals(false,ai.getAndSet(false));
#	Line 66 | Line 107 | public class AtomicBooleanTest extends T
107		assertEquals(true,ai.get());
108		}
109
110	+	/**
111	+	* a deserialized serialized atomic holds same value
112	+	*/
113		public void testSerialization() {
114		AtomicBoolean l = new AtomicBoolean();
115
#	Line 82 | Line 126 | public class AtomicBooleanTest extends T
126		assertEquals(l.get(), r.get());
127		} catch(Exception e){
128		e.printStackTrace();
129	<	fail("unexpected exception");
129	>	unexpectedException();
130		}
131		}
132

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