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/*
* UltraStar Deluxe - Karaoke Game
*
* UltraStar Deluxe is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*/
#include "ringbuffer.hpp"
#include <cstring>
#include <cppunit/extensions/HelperMacros.h>
namespace usdx
{
class RingBufferTest : public CppUnit::TestFixture {
CPPUNIT_TEST_SUITE(RingBufferTest);
CPPUNIT_TEST(testReadNullBuffer);
CPPUNIT_TEST(testReadNegativeCount);
CPPUNIT_TEST(testReadEmptyRingBuffer);
CPPUNIT_TEST(testWriteNullBuffer);
CPPUNIT_TEST(testWriteNegativeCount);
CPPUNIT_TEST(testWriteOverflow);
CPPUNIT_TEST(testWriteOverflow2);
CPPUNIT_TEST(testWriteRead);
CPPUNIT_TEST(testReadMoreThanAvailable);
CPPUNIT_TEST(testCurrentSize);
CPPUNIT_TEST(testCurrentAvailable);
CPPUNIT_TEST(testFlush);
CPPUNIT_TEST_SUITE_END();
private:
RingBuffer *rbuff;
public:
void setUp()
{
rbuff = new RingBuffer(10);
}
void tearDown()
{
delete rbuff;
}
// check if the read function reports an error in form of a
// negative value when the given buffer is NULL
void testReadNullBuffer()
{
CPPUNIT_ASSERT_EQUAL(-1, rbuff->read(NULL,10));
}
// check if the read function reports an error in form of a
// negative value when the given count is negative
void testReadNegativeCount()
{
char buffer[10];
CPPUNIT_ASSERT_EQUAL(-1, rbuff->read(buffer,-1));
}
// check the returnvalue when reading on a empty ringbuffer
void testReadEmptyRingBuffer()
{
char buffer[10];
CPPUNIT_ASSERT_EQUAL(0, rbuff->read(buffer,10));
}
// check in the read function reports an error in form of a
// negative value when the given buffer is NULL
void testWriteNullBuffer()
{
CPPUNIT_ASSERT_EQUAL(-1, rbuff->write(NULL,10));
}
// check if the read function reports an error in form of a
// negative value when the given count is negative
void testWriteNegativeCount()
{
char buffer[10];
CPPUNIT_ASSERT_EQUAL(-1, rbuff->write(buffer,-1));
}
// checks the retrunvalue when writeing over the limits of a
// ringbuffer
void testWriteOverflow()
{
char buffer[20];
CPPUNIT_ASSERT_EQUAL(0, rbuff->read(buffer,20));
}
// check if the read value is ajusted correctly, when
// a buffer overflow happens
void testWriteOverflow2()
{
char w1Buffer[4]="AAA";
char w2Buffer[4]="BBB";
char rBuffer[7]="CCCCCC";
CPPUNIT_ASSERT_EQUAL(3, rbuff->write(w1Buffer,3));
CPPUNIT_ASSERT_EQUAL(3, rbuff->write(w1Buffer,3));
CPPUNIT_ASSERT_EQUAL(3, rbuff->write(w1Buffer,3));
CPPUNIT_ASSERT_EQUAL(4, rbuff->write(w2Buffer,4));
CPPUNIT_ASSERT_EQUAL(6, rbuff->read(rBuffer,6));
CPPUNIT_ASSERT_EQUAL(0, strcmp("AAAAAA",rBuffer));
}
// check if inputdata equals outputdata
void testWriteRead()
{
char w1Buffer[4]="AAA";
char w2Buffer[4]="BBB";
char rBuffer[7]="CCCCCC";
CPPUNIT_ASSERT_EQUAL(3, rbuff->write(w1Buffer,3));
CPPUNIT_ASSERT_EQUAL(4, rbuff->write(w2Buffer,4));
CPPUNIT_ASSERT_EQUAL(7, rbuff->read(rBuffer,7));
CPPUNIT_ASSERT_EQUAL(0, strcmp("AAABBB",rBuffer));
}
// check what happens when read trys to read more data than
// available
void testReadMoreThanAvailable()
{
char wBuffer[4]="AAA";
char rBuffer[5]="BBBB";
CPPUNIT_ASSERT_EQUAL(4, rbuff->write(wBuffer,4));
CPPUNIT_ASSERT_EQUAL(4, rbuff->read(rBuffer,5));
CPPUNIT_ASSERT_EQUAL(0, strcmp("AAA",rBuffer));
}
// check if the correct ringbuffer size is reported
void testCurrentSize()
{
char w1Buffer[4]="AAA";
char w2Buffer[5]="BBBB";
CPPUNIT_ASSERT_EQUAL(4, rbuff->write(w1Buffer,4));
CPPUNIT_ASSERT_EQUAL(5, rbuff->write(w2Buffer,5));
CPPUNIT_ASSERT_EQUAL(10, rbuff->get_size());
}
// check if the available space in the ringbuffer
void testCurrentAvailable()
{
char w1Buffer[4]="AAA";
char w2Buffer[5]="BBBB";
CPPUNIT_ASSERT_EQUAL(4, rbuff->write(w1Buffer,4));
CPPUNIT_ASSERT_EQUAL(5, rbuff->write(w2Buffer,5));
CPPUNIT_ASSERT_EQUAL(9, rbuff->get_available());
}
// check if the flush function clears the buffer correctly
void testFlush()
{
char w1Buffer[4]="AAA";
char w2Buffer[4]="BBB";
char rBuffer[4]="CCC";
CPPUNIT_ASSERT_EQUAL(4, rbuff->write(w1Buffer,4));
rbuff->flush();
CPPUNIT_ASSERT_EQUAL(4, rbuff->write(w2Buffer,4));
CPPUNIT_ASSERT_EQUAL(4, rbuff->read(rBuffer,4));
CPPUNIT_ASSERT_EQUAL(0, strcmp("BBB",rBuffer));
}
};
CPPUNIT_TEST_SUITE_REGISTRATION(RingBufferTest);
};
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