com.redhat.rhn.common.util.test

Class MD5SumTest

java.lang.Object

junit.framework.Assert

junit.framework.TestCase

com.redhat.rhn.common.util.test.MD5SumTest

All Implemented Interfaces:

junit.framework.Test

public class MD5SumTest
extends junit.framework.TestCase

Constructor Summary

Constructors

Constructor and Description
MD5SumTest()

Method Summary

Modifier and Type	Method and Description
void	testMD5Sum()
void	testOOMEMD5Sum() Note that this test creates a large 100MB file in /tmp and then does an md5sum on the file.

Methods inherited from class junit.framework.TestCase

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, countTestCases, createResult, fail, fail, failNotEquals, failNotSame, failSame, format, getName, run, run, runBare, runTest, setName, setUp, tearDown, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

MD5SumTest

public MD5SumTest()

Method Detail

testMD5Sum

public void testMD5Sum()
                throws java.lang.Exception

Throws:

java.lang.Exception

testOOMEMD5Sum

public void testOOMEMD5Sum()
                    throws java.lang.Exception

Note that this test creates a large 100MB file in /tmp and then does an md5sum on the file. With a previous implementation of MD5Sum.getFileMD5Sum() this would cause an OOME with a max-heap size in junit of 256m. This is configured in: spacewalk/buildconf/build-utils.xml:

       <junit forkmode="once" fork="yes" printsummary="off" showoutput="yes"
        haltonfailure="${halt-tests-on-failure}"
        failureproperty="junit_test_failure" maxmemory="256m">
 

The new implementation uses less memory and thus passes the test below when ran from Junit CLI.

Throws:

java.lang.Exception - something bad happened