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-rw-r--r--test/base/ringbuffer.cpp181
1 files changed, 181 insertions, 0 deletions
diff --git a/test/base/ringbuffer.cpp b/test/base/ringbuffer.cpp
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+++ b/test/base/ringbuffer.cpp
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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( -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( -1 == rbuff->read(buffer,-1) );
+ }
+
+ // check the returnvalue when reading on a empty ringbuffer
+ void testReadEmptyRingBuffer()
+ {
+ char buffer[10];
+ CPPUNIT_ASSERT( 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( -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( -1 == rbuff->write(buffer,-1) );
+ }
+
+ // checks the retrunvalue when writeing over the limits of a
+ // ringbuffer
+ void testWriteOverflow()
+ {
+ char buffer[20];
+ CPPUNIT_ASSERT( 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( 3 == rbuff->write(w1Buffer,3) );
+ CPPUNIT_ASSERT( 3 == rbuff->write(w1Buffer,3) );
+ CPPUNIT_ASSERT( 3 == rbuff->write(w1Buffer,3) );
+ CPPUNIT_ASSERT( 4 == rbuff->write(w2Buffer,4) );
+ CPPUNIT_ASSERT( 6 == rbuff->read(rBuffer,6) );
+ CPPUNIT_ASSERT( 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( 3 == rbuff->write(w1Buffer,3) );
+ CPPUNIT_ASSERT( 4 == rbuff->write(w2Buffer,4) );
+ CPPUNIT_ASSERT( 7 == rbuff->read(rBuffer,7) );
+ CPPUNIT_ASSERT( 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( 4 == rbuff->write(wBuffer,4) );
+ CPPUNIT_ASSERT( 4 == rbuff->read(rBuffer,5) );
+ CPPUNIT_ASSERT( 0 == strcmp("AAA",rBuffer) );
+ }
+
+ // check if the correct ringbuffer size is reported
+ void testCurrentSize()
+ {
+ char w1Buffer[4]="AAA";
+ char w2Buffer[5]="BBBB";
+ CPPUNIT_ASSERT( 4 == rbuff->write(w1Buffer,4) );
+ CPPUNIT_ASSERT( 5 == rbuff->write(w2Buffer,5) );
+ CPPUNIT_ASSERT( 10 == rbuff->get_size() );
+ }
+
+ // check if the available space in the ringbuffer
+ void testCurrentAvailable()
+ {
+ char w1Buffer[4]="AAA";
+ char w2Buffer[5]="BBBB";
+ CPPUNIT_ASSERT( 4 == rbuff->write(w1Buffer,4) );
+ CPPUNIT_ASSERT( 5 == rbuff->write(w2Buffer,5) );
+ CPPUNIT_ASSERT( 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( 4 == rbuff->write(w1Buffer,4) );
+ rbuff->flush();
+ CPPUNIT_ASSERT( 4 == rbuff->write(w2Buffer,4) );
+ CPPUNIT_ASSERT( 4 == rbuff->read(rBuffer,4) );
+ CPPUNIT_ASSERT( 0 == strcmp("BBB",rBuffer) );
+ }
+
+ };
+
+ CPPUNIT_TEST_SUITE_REGISTRATION(RingBufferTest);
+};