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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/licenses/publicdomain |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
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*/ |
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import junit.framework.*; |
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import java.util.concurrent.atomic.*; |
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import java.io.*; |
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import java.util.concurrent.atomic.AtomicInteger; |
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public class AtomicIntegerTest extends JSR166TestCase { |
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public static void main (String[] args) { |
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junit.textui.TestRunner.run (suite()); |
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public static void main(String[] args) { |
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junit.textui.TestRunner.run(suite()); |
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} |
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public static Test suite() { |
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return new TestSuite(AtomicIntegerTest.class); |
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assertEquals(2,ai.get()); |
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ai.set(-3); |
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assertEquals(-3,ai.get()); |
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} |
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/** |
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assertEquals(2,ai.get()); |
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ai.lazySet(-3); |
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assertEquals(-3,ai.get()); |
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} |
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/** |
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* compareAndSet succeeds in changing value if equal to expected else fails |
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*/ |
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assertTrue(ai.compareAndSet(2,-4)); |
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assertEquals(-4,ai.get()); |
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assertFalse(ai.compareAndSet(-5,7)); |
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assertFalse((7 == ai.get())); |
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assertEquals(-4,ai.get()); |
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assertTrue(ai.compareAndSet(-4,7)); |
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assertEquals(7,ai.get()); |
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} |
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* a deserialized serialized atomic holds same value |
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*/ |
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public void testSerialization() throws Exception { |
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AtomicInteger l = new AtomicInteger(); |
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l.set(22); |
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ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
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ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
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out.writeObject(l); |
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out.close(); |
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ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
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ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
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AtomicInteger r = (AtomicInteger) in.readObject(); |
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assertEquals(l.get(), r.get()); |
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AtomicInteger x = new AtomicInteger(); |
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AtomicInteger y = serialClone(x); |
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assertTrue(x != y); |
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x.set(22); |
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AtomicInteger z = serialClone(x); |
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assertEquals(22, x.get()); |
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assertEquals(0, y.get()); |
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assertEquals(22, z.get()); |
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} |
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/** |
