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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.AtomicLong; |
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import junit.framework.Test; |
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import junit.framework.TestSuite; |
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public class AtomicLongTest 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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main(suite(), args); |
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} |
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public static Test suite() { |
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return new TestSuite(AtomicLongTest.class); |
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*/ |
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public void testWeakCompareAndSet() { |
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AtomicLong ai = new AtomicLong(1); |
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while (!ai.weakCompareAndSet(1, 2)); |
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while (!ai.weakCompareAndSet(2, -4)); |
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do {} while (!ai.weakCompareAndSet(1, 2)); |
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do {} while (!ai.weakCompareAndSet(2, -4)); |
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assertEquals(-4, ai.get()); |
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while (!ai.weakCompareAndSet(-4, 7)); |
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do {} while (!ai.weakCompareAndSet(-4, 7)); |
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assertEquals(7, ai.get()); |
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} |
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