zlibtest.cpp

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//
// ZLibTest.cpp
//
// $Id: //poco/Main/Foundation/testsuite/src/ZLibTest.cpp#5 $
//
// Copyright (c) 2004, Guenter Obiltschnig/Applied Informatics.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
//
// 3. Redistributions in any form must be accompanied by information on
//    how to obtain complete source code for this software and any
//    accompanying software that uses this software.  The source code
//    must either be included in the distribution or be available for no
//    more than the cost of distribution plus a nominal fee, and must be
//    freely redistributable under reasonable conditions.  For an
//    executable file, complete source code means the source code for all
//    modules it contains.  It does not include source code for modules or
//    files that typically accompany the major components of the operating
//    system on which the executable file runs.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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//


#include "ZLibTest.h"
#include "CppUnit/TestCaller.h"
#include "CppUnit/TestSuite.h"
#include "Foundation/InflatingStream.h"
#include "Foundation/DeflatingStream.h"
#include "Foundation/StreamCopier.h"
#include <sstream>


using Foundation::InflatingInputStream;
using Foundation::InflatingOutputStream;
using Foundation::DeflatingOutputStream;
using Foundation::DeflatingInputStream;
using Foundation::InflatingStreamBuf;
using Foundation::DeflatingStreamBuf;
using Foundation::StreamCopier;


ZLibTest::ZLibTest(const std::string& name): CppUnit::TestCase(name)
{
}


ZLibTest::~ZLibTest()
{
}


void ZLibTest::testDeflate1()
{
	std::stringstream buffer;
	DeflatingOutputStream deflater(buffer);
	deflater << "abcdefabcdefabcdefabcdefabcdefabcdef" << std::endl;
	deflater << "abcdefabcdefabcdefabcdefabcdefabcdef" << std::endl;
	deflater.close();
	InflatingInputStream inflater(buffer);
	std::string data;
	inflater >> data;
	assert (data == "abcdefabcdefabcdefabcdefabcdefabcdef");
	inflater >> data;
	assert (data == "abcdefabcdefabcdefabcdefabcdefabcdef");
}


void ZLibTest::testDeflate2()
{
	std::stringstream buffer;
	DeflatingOutputStream deflater(buffer);
	deflater << "abcdefabcdefabcdefabcdefabcdefabcdef" << std::endl;
	deflater << "abcdefabcdefabcdefabcdefabcdefabcdef" << std::endl;
	deflater.close();
	std::stringstream buffer2;
	InflatingOutputStream inflater(buffer2);
	StreamCopier::copyStream(buffer, inflater);
	inflater.close();
	std::string data;
	buffer2 >> data;
	assert (data == "abcdefabcdefabcdefabcdefabcdefabcdef");
	buffer2 >> data;
	assert (data == "abcdefabcdefabcdefabcdefabcdefabcdef");
}


void ZLibTest::testDeflate3()
{
	std::stringstream buffer;
	buffer << "abcdefabcdefabcdefabcdefabcdefabcdef" << std::endl;
	buffer << "abcdefabcdefabcdefabcdefabcdefabcdef" << std::endl;
	DeflatingInputStream deflater(buffer);
	std::stringstream buffer2;
	StreamCopier::copyStream(deflater, buffer2);
	std::stringstream buffer3;
	InflatingOutputStream inflater(buffer3);
	StreamCopier::copyStream(buffer2, inflater);
	inflater.close();
	std::string data;
	buffer3 >> data;
	assert (data == "abcdefabcdefabcdefabcdefabcdefabcdef");
	buffer3 >> data;
	assert (data == "abcdefabcdefabcdefabcdefabcdefabcdef");
}


void ZLibTest::testGzip1()
{
	std::stringstream buffer;
	DeflatingOutputStream deflater(buffer, DeflatingStreamBuf::STREAM_GZIP);
	deflater << "abcdefabcdefabcdefabcdefabcdefabcdef" << std::endl;
	deflater << "abcdefabcdefabcdefabcdefabcdefabcdef" << std::endl;
	deflater.close();
	InflatingInputStream inflater(buffer, InflatingStreamBuf::STREAM_GZIP);
	std::string data;
	inflater >> data;
	assert (data == "abcdefabcdefabcdefabcdefabcdefabcdef");
	inflater >> data;
	assert (data == "abcdefabcdefabcdefabcdefabcdefabcdef");
}


void ZLibTest::testGzip2()
{
	// created with gzip ("Hello, world!"):
	const unsigned char gzdata[] = 
	{
		0x1f, 0x8b, 0x08, 0x08, 0xb0, 0x73, 0xd0, 0x41, 0x00, 0x03, 0x68, 0x77, 0x00, 0xf3, 0x48, 0xcd, 
		0xc9, 0xc9, 0xd7, 0x51, 0x28, 0xcf, 0x2f, 0xca, 0x49, 0x51, 0xe4, 0x02, 0x00, 0x18, 0xa7, 0x55, 
		0x7b, 0x0e, 0x00, 0x00, 0x00, 0x00
	};
	
	std::string gzstr((char*) gzdata, sizeof(gzdata));
	std::istringstream istr(gzstr);
	InflatingInputStream inflater(istr, InflatingStreamBuf::STREAM_GZIP);
	std::string data;
	inflater >> data;
	assert (data == "Hello,");
	inflater >> data;
	assert (data == "world!");	
}


void ZLibTest::setUp()
{
}


void ZLibTest::tearDown()
{
}


CppUnit::Test* ZLibTest::suite()
{
	CppUnit::TestSuite* pSuite = new CppUnit::TestSuite("ZLibTest");

	CppUnit_addTest(pSuite, ZLibTest, testDeflate1);
	CppUnit_addTest(pSuite, ZLibTest, testDeflate2);
	CppUnit_addTest(pSuite, ZLibTest, testDeflate3);
	CppUnit_addTest(pSuite, ZLibTest, testGzip1);
	CppUnit_addTest(pSuite, ZLibTest, testGzip2);

	return pSuite;
}