Carla/source/backend/native/zynaddsubfx/Tests/PluginTest.h

/*
  ZynAddSubFX - a software synthesizer

  PluginTest.h - CxxTest for embedding zyn
  Copyright (C) 2013-2013 Mark McCurry
  Authors: Mark McCurry

  This program is free software; you can redistribute it and/or modify
  it under the terms of version 2 of the GNU General Public License
  as published by the Free Software Foundation.

  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 (version 2 or later) for more details.

  You should have received a copy of the GNU General Public License (version 2)
  along with this program; if not, write to the Free Software Foundation,
  Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA

*/
#include <cxxtest/TestSuite.h>
#include <cmath>
#include <cstdlib>
#include <iostream>
#include <fstream>
#include <string>
#include "../Misc/Master.h"
#include "../Misc/Util.h"
#include "../globals.h"
SYNTH_T *synth;

using namespace std;

char *instance_name=(char*)"";

class PluginTest:public CxxTest::TestSuite
{
    public:
        void setUp() {
            synth = new SYNTH_T;
            synth->buffersize = 256;
            synth->samplerate = 48000;
            synth->alias();

            outL  = new float[1024];
            for(int i = 0; i < synth->buffersize; ++i)
                outL[i] = 0.0f;
            outR = new float[1024];
            for(int i = 0; i < synth->buffersize; ++i)
                outR[i] = 0.0f;

            //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[synth->buffersize];
            for(int i = 0; i < synth->buffersize; ++i)
                denormalkillbuf[i] = 0;

            for(int i = 0; i < 16; ++i)
                master[i] = new Master();
        }

        void tearDown() {
            for(int i = 0; i < 16; ++i)
                delete master[i];

            delete[] outL;
            delete[] outR;
            delete synth;
        }


        void testInit() {

            for(int x=0; x<100; ++x)
                for(int i=0; i<16; ++i)
                    master[i]->GetAudioOutSamples(rand()%1025,
                            synth->samplerate, outL, outR);
        }

        void testPanic()
        {
            master[0]->setController(0, 0x64, 0);
            master[0]->noteOn(0,64,64);
            master[0]->AudioOut(outL, outR);

            float sum = 0.0f;
            for(int i = 0; i < synth->buffersize; ++i)
                sum += fabs(outL[i]);

            TS_ASSERT_LESS_THAN(0.1f, sum);
        }

        string loadfile(string fname) const
        {
            std::ifstream t(fname.c_str());
            std::string str((std::istreambuf_iterator<char>(t)),
                                     std::istreambuf_iterator<char>());
            return str;
        }


        void testLoadSave(void)
        {
            const string fname = string(SOURCE_DIR) + "/guitar-adnote.xmz";
            const string fdata = string("\n") + loadfile(fname);
            char *result = NULL;
            master[0]->putalldata((char*)fdata.c_str(), fdata.length());
            int res = master[0]->getalldata(&result);

            TS_ASSERT_EQUALS(fdata.length()+1, res);
            TS_ASSERT(fdata == result);
        }


    private:
        float *outR, *outL;
        Master *master[16];
};