zynaddsubfx

commit d0ebdea1b7f9c2cf0d13333132addacae2d6abea
parent 0b21a89b9f4bb9d283b4be57fc745e17130d0102
Author: fundamental <mark.d.mccurry@gmail.com>
Date:   Wed, 10 Aug 2011 23:32:22 -0400

Oscilgen: Adding basic test to verify behavior

Diffstat:
M
src/Synth/OscilGen.cpp
 | 
2
++
M
src/Tests/CMakeLists.txt
 | 
1
+
A
src/Tests/OscilGenTest.h
 | 
94
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

3 files changed, 97 insertions(+), 0 deletions(-)
diff --git a/src/Synth/OscilGen.cpp b/src/Synth/OscilGen.cpp
@@ -36,6 +36,8 @@ OscilGen::OscilGen(FFTwrapper *fft_, Resonance *res_):Presets()
     fft     = fft_;
     res     = res_;
 
+    assert(fft);
+
     tmpsmps = new float[OSCIL_SIZE];
     newFFTFREQS(&outoscilFFTfreqs, OSCIL_SIZE / 2);
     newFFTFREQS(&oscilFFTfreqs, OSCIL_SIZE / 2);
diff --git a/src/Tests/CMakeLists.txt b/src/Tests/CMakeLists.txt
@@ -5,3 +5,4 @@ unit_test(MicrotonalTest MicrotonalTest.h ../Misc/Microtonal.h)
 unit_test(XMLwrapperTest XMLwrapperTest.h ../Misc/XMLwrapper.h)
 unit_test(ADnoteTest AdNoteTest.h ../Synth/ADnote.h)
 unit_test(SUBnoteTest SubNoteTest.h ../Synth/SUBnote.h)
+unit_test(OscilGenTest OscilGenTest.h ../Synth/OscilGen.h)
diff --git a/src/Tests/OscilGenTest.h b/src/Tests/OscilGenTest.h
@@ -0,0 +1,94 @@
+#include <cxxtest/TestSuite.h>
+#include <string>
+#include "../Synth/OscilGen.h"
+
+using namespace std;
+
+class OscilGenTest:public CxxTest::TestSuite
+{
+    public:
+        float freq;
+        float *outR, *outL;
+        FFTwrapper *fft;
+        OscilGen  *oscil;
+
+        void setUp() {
+            //First the sensible settings and variables that have to be set:
+            SOUND_BUFFER_SIZE = 256;
+            OSCIL_SIZE        = 1024;
+
+            outL = new float[OSCIL_SIZE];
+            outR = new float[OSCIL_SIZE];
+            memset(outL, 0, sizeof(float) * OSCIL_SIZE);
+            memset(outR, 0, sizeof(float) * OSCIL_SIZE);
+
+            //next the bad global variables that for some reason have not been properly placed in some
+            //initialization routine, but rather exist as cryptic oneliners in main.cpp:
+            denormalkillbuf = new float[SOUND_BUFFER_SIZE];
+            for(int i = 0; i < SOUND_BUFFER_SIZE; i++)
+                denormalkillbuf[i] = 0;
+
+            //prepare the default settings
+            fft   = new FFTwrapper(OSCIL_SIZE);
+            oscil = new OscilGen(fft, NULL);
+
+            //Assert defaults [TODO]
+
+
+            XMLwrapper *wrap = new XMLwrapper();
+            wrap->loadXMLfile(string(SOURCE_DIR)
+                              + string("/Tests/guitar-adnote.xmz"));
+            TS_ASSERT(wrap->enterbranch("MASTER"));
+            TS_ASSERT(wrap->enterbranch("PART", 0));
+            TS_ASSERT(wrap->enterbranch("INSTRUMENT"));
+            TS_ASSERT(wrap->enterbranch("INSTRUMENT_KIT"));
+            TS_ASSERT(wrap->enterbranch("INSTRUMENT_KIT_ITEM", 0));
+            TS_ASSERT(wrap->enterbranch("ADD_SYNTH_PARAMETERS"));
+            TS_ASSERT(wrap->enterbranch("VOICE", 0));
+            TS_ASSERT(wrap->enterbranch("OSCIL"));
+            oscil->getfromXML(wrap);
+            delete wrap;
+
+            //verify xml was loaded [TODO]
+
+            //lets go with.... 50! as a nice note
+            const char testnote = 50;
+            freq = 440.0 * pow(2.0, (testnote - 69.0) / 12.0);
+        }
+        
+        void tearDown() {
+            delete oscil;
+            delete fft;
+            delete[] outL;
+            delete[] outR;
+            delete[] denormalkillbuf;
+        }
+
+        //verifies that initialization occurs
+        void testInit(void)
+        {
+            oscil->get(outL, freq);
+        }
+
+        void testOutput(void)
+        {
+            oscil->get(outL, freq);
+            TS_ASSERT_DELTA(outL[23],  -0.014717, 0.0001);
+            TS_ASSERT_DELTA(outL[129], -0.567502, 0.0001);
+            TS_ASSERT_DELTA(outL[586], -0.030894, 0.0001);
+            TS_ASSERT_DELTA(outL[1023], -0.080001, 0.0001);
+        }
+
+        void testSpectrum(void)
+        {
+            oscil->getspectrum(OSCIL_SIZE / 2, outR, 1);
+            TS_ASSERT_DELTA(outR[0], 350.698059, 0.0001);
+            TS_ASSERT_DELTA(outR[1], 228.889267, 0.0001);
+            TS_ASSERT_DELTA(outR[2], 62.187931, 0.0001);
+            TS_ASSERT_DELTA(outR[3], 22.295225, 0.0001);
+            TS_ASSERT_DELTA(outR[4], 6.942001, 0.0001);
+            TS_ASSERT_DELTA(outR[26], 0.015110, 0.0001);
+            TS_ASSERT_DELTA(outR[47], 0.003425, 0.0001);
+            TS_ASSERT_DELTA(outR[65], 0.001293, 0.0001);
+        }
+};