TTCircularEaseInFunction.test.cpp

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/** @file
 *
 * @ingroup dspFunctionLib
 *
 * @brief Unit tests for the Jamoma DSP #TTCircularEaseInFunction of the #TTFunctionLib
 *
 * @details Derived from Sam Hocevar's public domain C/C++ implementation of Robert Penner easing functions
 *
 * @authors Trond Lossius
 *
 * @copyright Copyright © 2014 by Trond Lossius @n
 * This code is licensed under the terms of the "New BSD License" @n
 * http://creativecommons.org/licenses/BSD/
 */


#include "TTFunction.h"
#include "TTCircularEaseInFunction.h"


/*
 * coefficients calculated in Octave using:

 x = linspace(0,1,128);
 y = 1 - sqrt(1 - (x .* x));
 printf("%.16e,\n", y);
 plot(x,y);
 
 */

TTErr TTCircularEaseInFunction::test(TTValue& returnedTestInfo)
{
    int                 errorCount = 0;
    int                 testAssertionCount = 0;
    int                 badSampleCount = 0;
    TTAudioSignalPtr    input = NULL;
    TTAudioSignalPtr    output = NULL;
    int                 N = 128;
    TTValue             v;
    

    TTFloat64 inputSignal1[128] = {
        0.0000000000000000e+00,
        7.8740157480314960e-03,
        1.5748031496062992e-02,
        2.3622047244094488e-02,
        3.1496062992125984e-02,
        3.9370078740157480e-02,
        4.7244094488188976e-02,
        5.5118110236220472e-02,
        6.2992125984251968e-02,
        7.0866141732283464e-02,
        7.8740157480314960e-02,
        8.6614173228346455e-02,
        9.4488188976377951e-02,
        1.0236220472440945e-01,
        1.1023622047244094e-01,
        1.1811023622047244e-01,
        1.2598425196850394e-01,
        1.3385826771653542e-01,
        1.4173228346456693e-01,
        1.4960629921259844e-01,
        1.5748031496062992e-01,
        1.6535433070866140e-01,
        1.7322834645669291e-01,
        1.8110236220472442e-01,
        1.8897637795275590e-01,
        1.9685039370078738e-01,
        2.0472440944881889e-01,
        2.1259842519685040e-01,
        2.2047244094488189e-01,
        2.2834645669291337e-01,
        2.3622047244094488e-01,
        2.4409448818897639e-01,
        2.5196850393700787e-01,
        2.5984251968503935e-01,
        2.6771653543307083e-01,
        2.7559055118110237e-01,
        2.8346456692913385e-01,
        2.9133858267716534e-01,
        2.9921259842519687e-01,
        3.0708661417322836e-01,
        3.1496062992125984e-01,
        3.2283464566929132e-01,
        3.3070866141732280e-01,
        3.3858267716535434e-01,
        3.4645669291338582e-01,
        3.5433070866141730e-01,
        3.6220472440944884e-01,
        3.7007874015748032e-01,
        3.7795275590551181e-01,
        3.8582677165354329e-01,
        3.9370078740157477e-01,
        4.0157480314960631e-01,
        4.0944881889763779e-01,
        4.1732283464566927e-01,
        4.2519685039370081e-01,
        4.3307086614173229e-01,
        4.4094488188976377e-01,
        4.4881889763779526e-01,
        4.5669291338582674e-01,
        4.6456692913385828e-01,
        4.7244094488188976e-01,
        4.8031496062992124e-01,
        4.8818897637795278e-01,
        4.9606299212598426e-01,
        5.0393700787401574e-01,
        5.1181102362204722e-01,
        5.1968503937007871e-01,
        5.2755905511811019e-01,
        5.3543307086614167e-01,
        5.4330708661417326e-01,
        5.5118110236220474e-01,
        5.5905511811023623e-01,
        5.6692913385826771e-01,
        5.7480314960629919e-01,
        5.8267716535433067e-01,
        5.9055118110236215e-01,
        5.9842519685039375e-01,
        6.0629921259842523e-01,
        6.1417322834645671e-01,
        6.2204724409448819e-01,
        6.2992125984251968e-01,
        6.3779527559055116e-01,
        6.4566929133858264e-01,
        6.5354330708661412e-01,
        6.6141732283464560e-01,
        6.6929133858267720e-01,
        6.7716535433070868e-01,
        6.8503937007874016e-01,
        6.9291338582677164e-01,
        7.0078740157480313e-01,
        7.0866141732283461e-01,
        7.1653543307086609e-01,
        7.2440944881889768e-01,
        7.3228346456692917e-01,
        7.4015748031496065e-01,
        7.4803149606299213e-01,
        7.5590551181102361e-01,
        7.6377952755905509e-01,
        7.7165354330708658e-01,
        7.7952755905511806e-01,
        7.8740157480314954e-01,
        7.9527559055118113e-01,
        8.0314960629921262e-01,
        8.1102362204724410e-01,
        8.1889763779527558e-01,
        8.2677165354330706e-01,
        8.3464566929133854e-01,
        8.4251968503937003e-01,
        8.5039370078740162e-01,
        8.5826771653543310e-01,
        8.6614173228346458e-01,
        8.7401574803149606e-01,
        8.8188976377952755e-01,
        8.8976377952755903e-01,
        8.9763779527559051e-01,
        9.0551181102362199e-01,
        9.1338582677165348e-01,
        9.2125984251968507e-01,
        9.2913385826771655e-01,
        9.3700787401574803e-01,
        9.4488188976377951e-01,
        9.5275590551181100e-01,
        9.6062992125984248e-01,
        9.6850393700787396e-01,
        9.7637795275590555e-01,
        9.8425196850393704e-01,
        9.9212598425196852e-01,
        1.0000000000000000e+00
    };

        
    TTFloat64 expectedSignal1[128] = { 
        0.0000000000000000e+00,
        3.1000542516923524e-05,
        1.2400793698474910e-04,
        2.7903948951946145e-04,
        4.9612406154420086e-04,
        7.7530209667364680e-04,
        1.1166256584350664e-03,
        1.5201584789065192e-03,
        1.9859760183806863e-03,
        2.5141655361817783e-03,
        3.1048261727940618e-03,
        3.7580690434828590e-03,
        4.4740173436133013e-03,
        5.2528064659050910e-03,
        6.0945841298823966e-03,
        6.9995105238144228e-03,
        7.9677584594659567e-03,
        8.9995135400142701e-03,
        1.0094974341518181e-02,
        1.1254352608361495e-02,
        1.2477873463130562e-02,
        1.3765775631422006e-02,
        1.5118311682118857e-02,
        1.6535748283716845e-02,
        1.8018366477327019e-02,
        1.9566461967031157e-02,
        2.1180345428315261e-02,
        2.2860342835365643e-02,
        2.4606795808067128e-02,
        2.6420061979607445e-02,
        2.8300515385658587e-02,
        3.0248546876179394e-02,
        3.2264564550958497e-02,
        3.4348994220101292e-02,
        3.6502279890754830e-02,
        3.8724884281458039e-02,
        4.1017289365611886e-02,
        4.3379996945673072e-02,
        4.5813529259798313e-02,
        4.8318429622795089e-02,
        5.0895263103379551e-02,
        5.3544617239891679e-02,
        5.6267102796791035e-02,
        5.9063354564431125e-02,
        6.1934032204813527e-02,
        6.4879821146234806e-02,
        6.7901433529975241e-02,
        7.0999609212432979e-02,
        7.4175116826389997e-02,
        7.7428754905397801e-02,
        8.0761353075611830e-02,
        8.4173773319766165e-02,
        8.7666911318388330e-02,
        9.1241697873794769e-02,
        9.4899100422899396e-02,
        9.8640124645405725e-02,
        1.0246581617454686e-01,
        1.0637726241819789e-01,
        1.1037559449891121e-01,
        1.1446198932223317e-01,
        1.1863767178355800e-01,
        1.2290391712476723e-01,
        1.2726205345301578e-01,
        1.3171346443526166e-01,
        1.3625959218351713e-01,
        1.4090194034734760e-01,
        1.4564207743187652e-01,
        1.5048164036150058e-01,
        1.5542233831171370e-01,
        1.6046595683389986e-01,
        1.6561436230074955e-01,
        1.7086950670310652e-01,
        1.7623343283262927e-01,
        1.8170827988871929e-01,
        1.8729628955280264e-01,
        1.9299981257833343e-01,
        1.9882131595094998e-01,
        2.0476339068015137e-01,
        2.1082876029185460e-01,
        2.1702029010040613e-01,
        2.2334099734927892e-01,
        2.2979406232204824e-01,
        2.3638284053962455e-01,
        2.4311087617650928e-01,
        2.4998191684850013e-01,
        2.5699992994737331e-01,
        2.6416912072530840e-01,
        2.7149395236407070e-01,
        2.7897916830227476e-01,
        2.8662981713977165e-01,
        2.9445128049298308e-01,
        3.0244930424094163e-01,
        3.1063003368154996e-01,
        3.1900005321449909e-01,
        3.2756643128573015e-01,
        3.3633677147384322e-01,
        3.4531927077871427e-01,
        3.5452278639624579e-01,
        3.6395691254316875e-01,
        3.7363206924877657e-01,
        3.8355960547874535e-01,
        3.9375191953007382e-01,
        4.0422260037710411e-01,
        4.1498659461396192e-01,
        4.2606040490891584e-01,
        4.3746232757506287e-01,
        4.4921273913314441e-01,
        4.6133444483505281e-01,
        4.7385310638462641e-01,
        4.8679777206928121e-01,
        5.0020154102178427e-01,
        5.1410240565223586e-01,
        5.2854433449062355e-01,
        5.4357868515938768e-01,
        5.5926607971160525e-01,
        5.7567894219503990e-01,
        5.9290500930045453e-01,
        6.1105231385107195e-01,
        6.3025647616145208e-01,
        6.5069176357765623e-01,
        6.7258861596390873e-01,
        6.9626296815770217e-01,
        7.2216883835626211e-01,
        7.5100175904185962e-01,
        7.8393035064547667e-01,
        8.2322878487682194e-01,
        8.7475611243632412e-01,
        1.0000000000000000e+00
    };  
    
    // setup Function 
    this->setAttributeValue(TT("function"), TT("easeInCircular"));

    
    // create 1 channel audio signal objects
    TTObjectBaseInstantiate(kTTSym_audiosignal, &input, 1);
    TTObjectBaseInstantiate(kTTSym_audiosignal, &output, 1);
    input->allocWithVectorSize(N);
    output->allocWithVectorSize(N);
    
    // create a signal to be transformed and then process it)
    input->clear(); 
    for (int i=0; i<N; i++)
        input->mSampleVectors[0][i] = inputSignal1[i]; 
    
    this->process(input, output);
    
    // now test the output
    for (int n=0; n<N; n++)
    {
        TTBoolean result = !TTTestFloatEquivalence(output->mSampleVectors[0][n], expectedSignal1[n]);
        badSampleCount += result;
        if (result) 
            TTTestLog("BAD SAMPLE @ n=%i ( value=%.10f  expected=%.10f )", n, output->mSampleVectors[0][n], expectedSignal1[n]);
    }
    
    TTTestAssertion("Produces correct function values", 
                    badSampleCount == 0,
                    testAssertionCount, 
                    errorCount);
    if (badSampleCount)
        TTTestLog("badSampleCount is %i", badSampleCount);
    
    
    TTObjectBaseRelease(&input);
    TTObjectBaseRelease(&output);
    
    // wrap up test results and pass back to whoever called test
    return TTTestFinish(testAssertionCount, errorCount, returnedTestInfo);
    
}