Class AtomicLongArrayTest

java.lang.Object
  junit.framework.Assert
      junit.framework.TestCase
          JSR166TestCase
              AtomicLongArrayTest

All Implemented Interfaces:

junit.framework.Test

public class AtomicLongArrayTest
extends JSR166TestCase

Nested Class Summary

Nested classes/interfaces inherited from class JSR166TestCase

JSR166TestCase.AdjustablePolicy, JSR166TestCase.CallableOne, JSR166TestCase.CheckedBarrier, JSR166TestCase.CheckedCallable<T>, JSR166TestCase.CheckedInterruptedCallable<T>, JSR166TestCase.CheckedInterruptedRunnable, JSR166TestCase.CheckedRecursiveAction, JSR166TestCase.CheckedRecursiveTask<T>, JSR166TestCase.CheckedRunnable, JSR166TestCase.LongPossiblyInterruptedRunnable, JSR166TestCase.MediumInterruptedRunnable, JSR166TestCase.MediumPossiblyInterruptedRunnable, JSR166TestCase.MediumRunnable, JSR166TestCase.NoOpCallable, JSR166TestCase.NoOpREHandler, JSR166TestCase.NoOpRunnable, JSR166TestCase.NPETask, JSR166TestCase.RunnableShouldThrow, JSR166TestCase.ShortInterruptedRunnable, JSR166TestCase.ShortRunnable, JSR166TestCase.SimpleThreadFactory, JSR166TestCase.SmallCallable, JSR166TestCase.SmallPossiblyInterruptedRunnable, JSR166TestCase.SmallRunnable, JSR166TestCase.StringTask, JSR166TestCase.ThreadShouldThrow, JSR166TestCase.TrackedCallable, JSR166TestCase.TrackedLongRunnable, JSR166TestCase.TrackedMediumRunnable, JSR166TestCase.TrackedNoOpRunnable, JSR166TestCase.TrackedRunnable, JSR166TestCase.TrackedShortRunnable, JSR166TestCase.TrackedSmallRunnable

Field Summary

Fields inherited from class JSR166TestCase

eight, expensiveTests, five, four, LONG_DELAY_MS, m1, m10, m2, m3, m4, m5, m6, MEDIUM_DELAY_MS, nine, one, seven, SHORT_DELAY_MS, six, SIZE, SMALL_DELAY_MS, TEST_STRING, three, two, zero

Constructor Summary

AtomicLongArrayTest()

Method Summary

static void	main(java.lang.String[] args)
static junit.framework.Test	suite()
void	testAddAndGet() addAndGet adds given value to current, and returns current value
void	testCompareAndSet() compareAndSet succeeds in changing value if equal to expected else fails
void	testCompareAndSetInMultipleThreads() compareAndSet in one thread enables another waiting for value to succeed
void	testConstructor() constructor creates array of given size with all elements zero
void	testConstructor2() constructor with array is of same size and has all elements
void	testConstructor2NPE() constructor with null array throws NPE
void	testCountingInMultipleThreads() Multiple threads using same array of counters successfully update a number of times equal to total count
void	testDecrementAndGet() decrementAndGet decrements and returns current value
void	testGetAndAdd() getAndAdd returns previous value and adds given value
void	testGetAndDecrement() getAndDecrement returns previous value and decrements
void	testGetAndIncrement() getAndIncrement returns previous value and increments
void	testGetAndSet() getAndSet returns previous value and sets to given value at given index
void	testGetLazySet() get returns the last value lazySet at index by same thread
void	testGetSet() get returns the last value set at index
void	testIncrementAndGet() incrementAndGet increments and returns current value
void	testIndexing() get and set for out of bound indices throw IndexOutOfBoundsException
void	testSerialization() a deserialized serialized array holds same values
void	testToString() toString returns current value.
void	testWeakCompareAndSet() repeated weakCompareAndSet succeeds in changing value when equal to expected

Methods inherited from class JSR166TestCase

assertThreadJoinTimesOut, awaiter, checkEmpty, delay, getShortDelay, joinPool, latchAwaitingStringTask, newTestSuite, permissivePolicy, possiblyInterruptedRunnable, runTest, runTestProfiled, runWithoutPermissions, runWithPermissions, setDelays, setUp, shouldThrow, shouldThrow, tearDown, threadAssertEquals, threadAssertEquals, threadAssertFalse, threadAssertNull, threadAssertSame, threadAssertTrue, threadFail, threadRecordFailure, threadShouldThrow, threadShouldThrow, threadUnexpectedException, trackedRunnable

Methods inherited from class junit.framework.TestCase

countTestCases, createResult, getName, run, run, runBare, setName, toString

Methods inherited from class junit.framework.Assert

assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertFalse, assertFalse, assertNotNull, assertNotNull, assertNotSame, assertNotSame, assertNull, assertNull, assertSame, assertSame, assertTrue, assertTrue, fail, fail, failNotEquals, failNotSame, failSame, format

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

AtomicLongArrayTest

public AtomicLongArrayTest()

Method Detail

main

public static void main(java.lang.String[] args)

suite

public static junit.framework.Test suite()

testConstructor

public void testConstructor()

constructor creates array of given size with all elements zero

testConstructor2NPE

public void testConstructor2NPE()

constructor with null array throws NPE

testConstructor2

public void testConstructor2()

constructor with array is of same size and has all elements

testIndexing

public void testIndexing()

get and set for out of bound indices throw IndexOutOfBoundsException

testGetSet

public void testGetSet()

get returns the last value set at index

testGetLazySet

public void testGetLazySet()

get returns the last value lazySet at index by same thread

testCompareAndSet

public void testCompareAndSet()

compareAndSet succeeds in changing value if equal to expected else fails

testCompareAndSetInMultipleThreads

public void testCompareAndSetInMultipleThreads()
                                        throws java.lang.InterruptedException

compareAndSet in one thread enables another waiting for value to succeed

Throws:

java.lang.InterruptedException

testWeakCompareAndSet

public void testWeakCompareAndSet()

repeated weakCompareAndSet succeeds in changing value when equal to expected

testGetAndSet

public void testGetAndSet()

getAndSet returns previous value and sets to given value at given index

testGetAndAdd

public void testGetAndAdd()

getAndAdd returns previous value and adds given value

testGetAndDecrement

public void testGetAndDecrement()

getAndDecrement returns previous value and decrements

testGetAndIncrement

public void testGetAndIncrement()

getAndIncrement returns previous value and increments

testAddAndGet

public void testAddAndGet()

addAndGet adds given value to current, and returns current value

testDecrementAndGet

public void testDecrementAndGet()

decrementAndGet decrements and returns current value

testIncrementAndGet

public void testIncrementAndGet()

incrementAndGet increments and returns current value

testCountingInMultipleThreads

public void testCountingInMultipleThreads()
                                   throws java.lang.InterruptedException

Multiple threads using same array of counters successfully update a number of times equal to total count

Throws:

java.lang.InterruptedException

testSerialization

public void testSerialization()
                       throws java.lang.Exception

a deserialized serialized array holds same values

Throws:

java.lang.Exception

testToString

public void testToString()

toString returns current value.