test/volume_oscillator.c


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#include <stddef.h>
#include "ts.h"

bool ts_test_volume_oscillator( void )
{
    fp_t const v[] = { 100, 200, 300, 400, 500 };

    fp_t const * const x[] = { v };

    fp_t fast = 2;
    fp_t slow = 4;
    fp_t a_fast = 2.0 / (fast + 1);
    fp_t a_slow = 2.0 / (slow + 1);

    fp_t ema_f = v[0];
    fp_t ema_s = v[0];
    fp_t e[2] = { 0 };

    uint_t idx = 0;
    for( uint_t i = 1; i < 5; ++i )
    {
        ema_f = ema_f + a_fast * ( v[i] - ema_f );
        ema_s = ema_s + a_slow * ( v[i] - ema_s );
        if (i >= 3) {
            e[idx++] = ema_s != 0 ? ( ema_f - ema_s ) / ema_s * 100 : 0;
        }
    }

    fp_t const * const e_arr[1] = { e };

    fp_t constants[2] = { fast, slow };

    return ts_test(ts_volume_oscillator, ts_volume_oscillator_offset, x, e_arr, 5, (ts_constant_t *)constants, &ts_volume_oscillator_p);
}