com.bigdata.io.compression

Class AbstractRecordCompressorTestCase

java.lang.Object

junit.framework.Assert

junit.framework.TestCase

junit.framework.TestCase2

com.bigdata.io.compression.AbstractRecordCompressorTestCase

All Implemented Interfaces:

IRecordCompressorFactory, junit.framework.Test

Direct Known Subclasses:

TestNOPRecordCompressor, TestRecordCompressor_BestCompression, TestRecordCompressor_BestSpeed

public abstract class AbstractRecordCompressorTestCase
extends TestCase2
implements IRecordCompressorFactory

Abstract base class for IRecordCompressor test suites.

Version:

$Id$ FIXME add unit tests using read-only ByteBuffers and one using a DirectBufferPool to give us a direct buffer for testing. This will test the logic that handles cases when we can not access the backing byte[].

Author:

Bryan Thompson

Nested Class Summary

Nested classes/interfaces inherited from class junit.framework.TestCase2

TestCase2.MyProperties, TestCase2.RandomType

Field Summary

Fields inherited from class junit.framework.TestCase2

_randomType, log

Constructor Summary

Constructors

Constructor and Description
AbstractRecordCompressorTestCase()
AbstractRecordCompressorTestCase(String name)

Method Summary

Methods

Modifier and Type	Method and Description
protected int	doCompressionTest(IRecordCompressor c, byte[] expected, int off, int len) Test helper applies the compression algorithm to the data and then verifies that the expected data can be recovered by applying the decompression algorithm.
protected byte[]	getRandomRecord(int n) Generate a record comprised of n random terms selected from words.
void	test_recordCompressor_stressTest() Stress test ability to compress and decompress data.
void	test_recordCompressor01() Test ability to compress and decompress data.
void	test_recordCompressor02() Test ability to compress and decompress data using a de-serialized compression provider.
void	test_recordCompressor03() Test ability to compress and decompress zero-length data.

Methods inherited from class junit.framework.TestCase2

assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEqualsWithinUlps, assertSameArray, assertSameArray, assertSameBigDecimal, assertSameBigDecimal, assertSameBigInteger, assertSameBigInteger, assertSameIterator, assertSameIterator, assertSameIteratorAnyOrder, assertSameIteratorAnyOrder, assertSameValue, assertSameValue, assertZeroUlps, assertZeroUlps, fail, getInnerCause, getNormalInt, getProjectBuildPath, getProperties, getRandomObject, getRandomObject, getRandomOrder, getRandomString, getTestInputStream, getTestResource, getTestResource, getUlps, getUlps, isDEBUG, isDEBUG, isINFO, isINFO, isInnerCause, logProperties

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

Methods inherited from interface com.bigdata.io.compression.IRecordCompressorFactory

getInstance

Constructor Detail

AbstractRecordCompressorTestCase

public AbstractRecordCompressorTestCase()

AbstractRecordCompressorTestCase

public AbstractRecordCompressorTestCase(String name)

Parameters:

name -

Method Detail

getRandomRecord

protected byte[] getRandomRecord(int n)

Generate a record comprised of n random terms selected from words. The terms are concatenated with whitespace separators and then serialized as a byte[] which is returned to the caller.

Parameters:

n - The #of terms to include in the record.

doCompressionTest

protected int doCompressionTest(IRecordCompressor c,
                    byte[] expected,
                    int off,
                    int len)

Test helper applies the compression algorithm to the data and then verifies that the expected data can be recovered by applying the decompression algorithm.

Parameters:

c - The (de-)compressor.

expected - The data to be compressed.

Returns:

The #of bytes in the compressed record.

test_recordCompressor01

public void test_recordCompressor01()

Test ability to compress and decompress data.

test_recordCompressor02

public void test_recordCompressor02()

Test ability to compress and decompress data using a de-serialized compression provider.

test_recordCompressor03

public void test_recordCompressor03()

Test ability to compress and decompress zero-length data.

test_recordCompressor_stressTest

public void test_recordCompressor_stressTest()

Stress test ability to compress and decompress data.