JCSThrashTest (Commons JCS 2.0.0-SNAPSHOT Test API)

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org.apache.jcs
Class JCSThrashTest

java.lang.Object
  junit.framework.Assert
      junit.framework.TestCase
          org.apache.jcs.JCSThrashTest

All Implemented Interfaces:: junit.framework.Test

public class JCSThrashTest
extends junit.framework.TestCase
extends junit.framework.TestCase

This is based on a test that was posted to the user's list:

http://www.opensubscriber.com/message/jcs-users@jakarta.apache.org/2435965.html

Nested Class Summary
`protected static interface`	`JCSThrashTest.Executable` A runnable, that can throw an exception.

Field Summary
`protected JCS<String,Serializable>`	`jcs` the cache instance

Constructor Summary
`JCSThrashTest(String arg0)`

Method Summary
`static void`	`main(String[] args)`
`protected long`	`measureMemoryUse()` Measure memory used by the VM.
`protected void`	`runThreads(List<JCSThrashTest.Executable> executables)` Runs a set of threads, for a fixed amount of time.
`protected void`	`setUp()` Sets up the test
`protected void`	`tearDown()`
`void`	`testForMemoryLeaks()` This does a bunch of work and then verifies that the memory has not grown by much.
`void`	`testPut()` Tests adding an entry.
`void`	`testRemove()` Test elements can be removed from the store
`protected long`	`thrashCache()`

Methods inherited from class junit.framework.TestCase
`countTestCases, createResult, getName, run, run, runBare, runTest, 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`

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

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Field Detail

jcs

protected JCS<String,Serializable> jcs

the cache instance

Constructor Detail

JCSThrashTest

public JCSThrashTest(String arg0)

Parameters:: arg0 -

Method Detail

main

public static void main(String[] args)

Parameters:: args -

setUp

protected void setUp()
              throws Exception

Sets up the test

Overrides:: setUp in class junit.framework.TestCase

Throws:: Exception

tearDown

protected void tearDown()
                 throws Exception

Overrides:: tearDown in class junit.framework.TestCase

Throws:: Exception

testPut

public void testPut()
             throws Exception

Tests adding an entry.

Throws:: Exception

testRemove

public void testRemove()
                throws Exception

Test elements can be removed from the store

Throws:: Exception

testForMemoryLeaks

public void testForMemoryLeaks()
                        throws Exception

This does a bunch of work and then verifies that the memory has not grown by much. Most of the time the amount of memory used after the test is less.

Throws:: Exception

thrashCache

protected long thrashCache()
                    throws Exception

Returns:: time
Throws:: Exception

runThreads

protected void runThreads(List<JCSThrashTest.Executable> executables)
                   throws Exception

Runs a set of threads, for a fixed amount of time.

Parameters:: executables -
Throws:: Exception

measureMemoryUse

protected long measureMemoryUse()
                         throws InterruptedException

Measure memory used by the VM.

Returns:: bytes
Throws:: InterruptedException