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/*
* steghide 0.5.1 - a steganography program
* Copyright (C) 1999-2003 Stefan Hetzl <shetzl@chello.at>
*
* 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; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
#include "AudioSampleValue.h"
#include "AuSampleValues.h"
#include "CvrStgFile.h"
#include "AudioSampleValueTest.h"
#include "utcommon.h"
AudioSampleValueTest::AudioSampleValueTest (TestSuite* s)
: SampleValueTest ("AudioSampleValue", s)
{
ADDTESTCATEGORY (AudioSampleValueTest, testDistance) ;
ADDTESTCATEGORY (AudioSampleValueTest, testIsNeighbour) ;
}
void AudioSampleValueTest::setup ()
{
UnitTest::setup() ;
Globs.reset() ;
f_AuMuLaw = CvrStgFile::readFile (std::string(DATADIR) + "mulaw_std.au") ;
sv_AuMuLaw_0 = new AuMuLawSampleValue (0) ;
sv_AuMuLaw_1 = new AuMuLawSampleValue (1) ;
sv_AuMuLaw_45 = new AuMuLawSampleValue (45) ;
gl_AuMuLaw = Globs ;
Globs.reset() ;
f_AuPCM16 = CvrStgFile::readFile (std::string(DATADIR) + "pcm16_std.au") ;
sv_AuPCM16_m32768 = new AuPCM16SampleValue (-32768) ;
sv_AuPCM16_32767 = new AuPCM16SampleValue (32767) ;
sv_AuPCM16_0 = new AuPCM16SampleValue (0) ;
sv_AuPCM16_15 = new AuPCM16SampleValue (15) ;
gl_AuPCM16 = Globs ;
}
void AudioSampleValueTest::cleanup ()
{
UnitTest::cleanup() ;
delete f_AuMuLaw ; delete f_AuPCM16 ;
delete sv_AuMuLaw_0 ; delete sv_AuMuLaw_1 ; delete sv_AuMuLaw_45 ;
delete sv_AuPCM16_m32768 ; delete sv_AuPCM16_32767 ; delete sv_AuPCM16_0 ; delete sv_AuPCM16_15 ;
}
void AudioSampleValueTest::testDistance ()
{
Globs = gl_AuMuLaw ;
addTestResult (genericTestDistance (sv_AuMuLaw_0, sv_AuMuLaw_1, 1)) ;
addTestResult (genericTestDistance (sv_AuMuLaw_1, sv_AuMuLaw_45, 44)) ;
Globs = gl_AuPCM16 ;
addTestResult (genericTestDistance (sv_AuPCM16_0, sv_AuPCM16_15, 15)) ;
addTestResult (genericTestDistance (sv_AuPCM16_15, sv_AuPCM16_32767, 32752)) ;
addTestResult (genericTestDistance (sv_AuPCM16_m32768, sv_AuPCM16_32767, 65535)) ;
}
void AudioSampleValueTest::testIsNeighbour ()
{
Globs = gl_AuMuLaw ;
addTestResult (genericTestIsNeighbour (sv_AuMuLaw_0, sv_AuMuLaw_1, true)) ;
addTestResult (genericTestIsNeighbour (sv_AuMuLaw_0, sv_AuMuLaw_45, false)) ;
Globs = gl_AuPCM16 ;
addTestResult (genericTestIsNeighbour (sv_AuPCM16_0, sv_AuPCM16_15, true)) ;
addTestResult (genericTestIsNeighbour (sv_AuPCM16_m32768, sv_AuPCM16_0, false)) ;
addTestResult (genericTestIsNeighbour (sv_AuPCM16_m32768, sv_AuPCM16_32767, false)) ;
}
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