1 /*
2 * steghide 0.5.1 - a steganography program
3 * Copyright (C) 1999-2003 Stefan Hetzl <shetzl@chello.at>
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 *
19 */
20
21 #include "WavPCMSampleValueTest.h"
22 #include "utcommon.h"
23
24 #include "WavPCMSampleValue.h"
25 #include "CvrStgFile.h"
26
WavPCMSampleValueTest(TestSuite * s)27 WavPCMSampleValueTest::WavPCMSampleValueTest (TestSuite* s)
28 : SampleValueTest ("WavPCMSampleValue", s)
29 {
30 ADDTESTCATEGORY (WavPCMSampleValueTest, testDistance) ;
31 ADDTESTCATEGORY (WavPCMSampleValueTest, testIsNeighbour) ;
32 }
33
setup()34 void WavPCMSampleValueTest::setup ()
35 {
36 UnitTest::setup() ;
37
38 Globs.reset() ;
39 f_WavPCM8 = CvrStgFile::readFile (std::string(DATADIR) + "pcm8_std.wav") ;
40 sv_WavPCM8_0 = new WavPCMSampleValue (0) ;
41 sv_WavPCM8_1 = new WavPCMSampleValue (1) ;
42 sv_WavPCM8_45 = new WavPCMSampleValue (45) ;
43 gl_WavPCM8 = Globs ;
44
45 Globs.reset() ;
46 f_WavPCM16 = CvrStgFile::readFile (std::string(DATADIR) + "pcm16_std.wav") ;
47 sv_WavPCM16_m32768 = new WavPCMSampleValue (-32768) ;
48 sv_WavPCM16_32767 = new WavPCMSampleValue (32767) ;
49 sv_WavPCM16_0 = new WavPCMSampleValue (0) ;
50 sv_WavPCM16_15 = new WavPCMSampleValue (15) ;
51 gl_WavPCM16 = Globs ;
52 }
53
cleanup()54 void WavPCMSampleValueTest::cleanup ()
55 {
56 UnitTest::cleanup() ;
57
58 delete f_WavPCM8 ; delete f_WavPCM16 ;
59 delete sv_WavPCM8_0 ; delete sv_WavPCM8_1 ; delete sv_WavPCM8_45 ;
60 delete sv_WavPCM16_m32768 ; delete sv_WavPCM16_32767 ; delete sv_WavPCM16_0 ; delete sv_WavPCM16_15 ;
61 }
62
testDistance()63 void WavPCMSampleValueTest::testDistance ()
64 {
65 Globs = gl_WavPCM8 ;
66 addTestResult (genericTestDistance (sv_WavPCM8_0, sv_WavPCM8_1, 1)) ;
67 addTestResult (genericTestDistance (sv_WavPCM8_1, sv_WavPCM8_45, 44)) ;
68
69 Globs = gl_WavPCM16 ;
70 addTestResult (genericTestDistance (sv_WavPCM16_0, sv_WavPCM16_15, 15)) ;
71 addTestResult (genericTestDistance (sv_WavPCM16_15, sv_WavPCM16_32767, 32752)) ;
72 addTestResult (genericTestDistance (sv_WavPCM16_m32768, sv_WavPCM16_32767, 65535)) ;
73 }
74
testIsNeighbour()75 void WavPCMSampleValueTest::testIsNeighbour ()
76 {
77 Globs = gl_WavPCM8 ;
78 addTestResult (genericTestIsNeighbour (sv_WavPCM8_0, sv_WavPCM8_1, true)) ;
79 addTestResult (genericTestIsNeighbour (sv_WavPCM8_0, sv_WavPCM8_45, false)) ;
80
81 Globs = gl_WavPCM16 ;
82 addTestResult (genericTestIsNeighbour (sv_WavPCM16_0, sv_WavPCM16_15, true)) ;
83 addTestResult (genericTestIsNeighbour (sv_WavPCM16_m32768, sv_WavPCM16_0, false)) ;
84 addTestResult (genericTestIsNeighbour (sv_WavPCM16_m32768, sv_WavPCM16_32767, false)) ;
85 }
86