test/tck/AtomicBooleanTest.java

/*
 * Written by members of JCP JSR-166 Expert Group and released to the
 * public domain. Use, modify, and redistribute this code in any way
 * without acknowledgement. Other contributors include Andrew Wright,
 * Jeffrey Hayes, Pat Fischer, Mike Judd.
 */

import junit.framework.*;
import java.util.concurrent.atomic.*;
import java.io.*;

public class AtomicBooleanTest extends JSR166TestCase {
    public static void main (String[] args) {
        junit.textui.TestRunner.run (suite());
    }
    public static Test suite() {
        return new TestSuite(AtomicBooleanTest.class);
    }

    /**
     *
     */
    public void testConstructor() {
        AtomicBoolean ai = new AtomicBoolean(true);
        assertEquals(true,ai.get());
    }

    /**
     *
     */
    public void testConstructor2() {
        AtomicBoolean ai = new AtomicBoolean();
        assertEquals(false,ai.get());
    }

    /**
     *
     */
    public void testGetSet() {
        AtomicBoolean ai = new AtomicBoolean(true);
        assertEquals(true,ai.get());
        ai.set(false);
        assertEquals(false,ai.get());
        ai.set(true);
        assertEquals(true,ai.get());
        
    }
    /**
     *
     */
    public void testCompareAndSet() {
        AtomicBoolean ai = new AtomicBoolean(true);
        assertTrue(ai.compareAndSet(true,false));
        assertEquals(false,ai.get());
        assertTrue(ai.compareAndSet(false,false));
        assertEquals(false,ai.get());
        assertFalse(ai.compareAndSet(true,false));
        assertFalse((ai.get()));
        assertTrue(ai.compareAndSet(false,true));
        assertEquals(true,ai.get());
    }

    /**
     *
     */
    public void testWeakCompareAndSet() {
        AtomicBoolean ai = new AtomicBoolean(true);
        while(!ai.weakCompareAndSet(true,false));
        assertEquals(false,ai.get());
        while(!ai.weakCompareAndSet(false,false));
        assertEquals(false,ai.get());
        while(!ai.weakCompareAndSet(false,true));
        assertEquals(true,ai.get());
    }

    /**
     *
     */
    public void testGetAndSet() {
        AtomicBoolean ai = new AtomicBoolean(true);
        assertEquals(true,ai.getAndSet(false));
        assertEquals(false,ai.getAndSet(false));
        assertEquals(false,ai.getAndSet(true));
        assertEquals(true,ai.get());
    }

    /**
     *
     */
    public void testSerialization() {
        AtomicBoolean l = new AtomicBoolean();

        try {
            l.set(true);
            ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
            ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
            out.writeObject(l);
            out.close();

            ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
            ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
            AtomicBoolean r = (AtomicBoolean) in.readObject();
            assertEquals(l.get(), r.get());
        } catch(Exception e){
            e.printStackTrace();
            unexpectedException();
        }
    }


}
Revision:	1.4
Committed:	Sat Sep 20 18:20:07 2003 UTC (20 years, 7 months ago) by dl
Branch:	MAIN
Changes since 1.3:	+28 -7 lines
Log Message:	Documentation scaffolding
#	User	Rev	Content
1	dl	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.
6			*/
7
8			import junit.framework.*;
9			import java.util.concurrent.atomic.*;
10	dl	1.2	import java.io.*;
11	dl	1.1
12	dl	1.3	public class AtomicBooleanTest extends JSR166TestCase {
13	dl	1.1	public static void main (String[] args) {
14			junit.textui.TestRunner.run (suite());
15			}
16			public static Test suite() {
17			return new TestSuite(AtomicBooleanTest.class);
18			}
19
20	dl	1.4	/**
21			*
22			*/
23			public void testConstructor() {
24	dl	1.1	AtomicBoolean ai = new AtomicBoolean(true);
25			assertEquals(true,ai.get());
26			}
27
28	dl	1.4	/**
29			*
30			*/
31			public void testConstructor2() {
32	dl	1.1	AtomicBoolean ai = new AtomicBoolean();
33			assertEquals(false,ai.get());
34			}
35
36	dl	1.4	/**
37			*
38			*/
39			public void testGetSet() {
40	dl	1.1	AtomicBoolean ai = new AtomicBoolean(true);
41			assertEquals(true,ai.get());
42			ai.set(false);
43			assertEquals(false,ai.get());
44			ai.set(true);
45			assertEquals(true,ai.get());
46
47			}
48	dl	1.4	/**
49			*
50			*/
51			public void testCompareAndSet() {
52	dl	1.1	AtomicBoolean ai = new AtomicBoolean(true);
53			assertTrue(ai.compareAndSet(true,false));
54			assertEquals(false,ai.get());
55			assertTrue(ai.compareAndSet(false,false));
56			assertEquals(false,ai.get());
57			assertFalse(ai.compareAndSet(true,false));
58			assertFalse((ai.get()));
59			assertTrue(ai.compareAndSet(false,true));
60			assertEquals(true,ai.get());
61			}
62
63	dl	1.4	/**
64			*
65			*/
66			public void testWeakCompareAndSet() {
67	dl	1.1	AtomicBoolean ai = new AtomicBoolean(true);
68			while(!ai.weakCompareAndSet(true,false));
69			assertEquals(false,ai.get());
70			while(!ai.weakCompareAndSet(false,false));
71			assertEquals(false,ai.get());
72			while(!ai.weakCompareAndSet(false,true));
73			assertEquals(true,ai.get());
74			}
75
76	dl	1.4	/**
77			*
78			*/
79			public void testGetAndSet() {
80	dl	1.1	AtomicBoolean ai = new AtomicBoolean(true);
81			assertEquals(true,ai.getAndSet(false));
82			assertEquals(false,ai.getAndSet(false));
83			assertEquals(false,ai.getAndSet(true));
84			assertEquals(true,ai.get());
85	dl	1.2	}
86
87	dl	1.4	/**
88			*
89			*/
90	dl	1.2	public void testSerialization() {
91			AtomicBoolean l = new AtomicBoolean();
92
93			try {
94			l.set(true);
95			ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
96			ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
97			out.writeObject(l);
98			out.close();
99
100			ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
101			ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
102			AtomicBoolean r = (AtomicBoolean) in.readObject();
103			assertEquals(l.get(), r.get());
104			} catch(Exception e){
105			e.printStackTrace();
106	dl	1.4	unexpectedException();
107	dl	1.2	}
108	dl	1.1	}
109
110
111			}