Package de.hybris.platform.test

Class AbstractCacheUnitThreadTest

java.lang.Object

de.hybris.platform.testframework.HybrisJUnit4Test

de.hybris.platform.test.AbstractCacheUnitThreadTest

All Implemented Interfaces:

JaloSessionHolder

public class AbstractCacheUnitThreadTest
extends HybrisJUnit4Test

Test AbstractCacheUnit and Cache behavior, especially in multi-threaded mode.

Field Summary

Fields inherited from class de.hybris.platform.testframework.HybrisJUnit4Test

jaloSession

Constructor Summary

Constructors

Constructor	Description
AbstractCacheUnitThreadTest()

Method Summary

Modifier and Type	Method	Description
void	testExclusiveComputation()	Tests whether AbstractCacheUnit.compute() is really working exclusively when Cache.isForceExclusiveComputation() is switched on.
void	testExclusiveUnitAddToCache()	Tests whether Cache.getOrAddUnit(AbstractCacheUnit) is ensuring that only one unit per key is being added even if multiple threads are trying that at the same time.
void	testMultiThreadedAccessAndMemory()	Tests multiple threads accessing AbstractCacheUnit and implicitely Cache, without testing for correctness! Instead it compares the memory before access, after filling up and after clearing the cache.

Methods inherited from class de.hybris.platform.testframework.HybrisJUnit4Test

establishJaloSession, finish, getOrCreateCurrency, getOrCreateLanguage, init, intenseChecksActivated, takeJaloSession

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractCacheUnitThreadTest

public AbstractCacheUnitThreadTest()

Method Detail

testMultiThreadedAccessAndMemory

public void testMultiThreadedAccessAndMemory()
                                      throws java.lang.InterruptedException

Tests multiple threads accessing AbstractCacheUnit and implicitely Cache, without testing for correctness! Instead it compares the memory before access, after filling up and after clearing the cache. The test will fail if after clear the memory gain is higher than a allowed gain (atm 50 bytes per thread, which is 5000 bytes for 100 threads).

Throws:

java.lang.InterruptedException

testExclusiveUnitAddToCache

public void testExclusiveUnitAddToCache()
                                 throws java.lang.InterruptedException

Tests whether Cache.getOrAddUnit(AbstractCacheUnit) is ensuring that only one unit per key is being added even if multiple threads are trying that at the same time. To enforce potential errors the test runs several turns of all threads trying to add a unit with the same key per turn.

Throws:

java.lang.InterruptedException

testExclusiveComputation

public void testExclusiveComputation()
                              throws java.lang.InterruptedException

Tests whether AbstractCacheUnit.compute() is really working exclusively when Cache.isForceExclusiveComputation() is switched on. To test this we let many threads try to access the cache using one unit per thread having the same key.

Throws:

java.lang.InterruptedException