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Add a unit test for fluid_ct2hz_real()

This commit is contained in:
derselbst 2019-10-17 22:37:24 +02:00
parent 5919be2ceb
commit 3c4861c752
2 changed files with 37 additions and 0 deletions
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1
test/CMakeLists.txt
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@ -16,6 +16,7 @@ ADD_FLUID_TEST(test_seqbind_unregister)
ADD_FLUID_TEST(test_synth_chorus_reverb)
ADD_FLUID_TEST(test_snprintf)
ADD_FLUID_TEST(test_synth_process)
ADD_FLUID_TEST(test_ct2hz)
# if ( LIBSNDFILE_HASVORBIS )
# ADD_FLUID_TEST(test_sf3_sfont_loading)

36
test/test_ct2hz.c Normal file
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@ -0,0 +1,36 @@
#include "test.h"
#include "utils/fluid_conv.h"
#include "utils/fluid_sys.h"
// this test makes sure FLUID_SNPRINTF uses a proper C99 compliant implementation
int float_eq(fluid_real_t x, fluid_real_t y)
{
static const float EPS = 1e-5;
return fabs(x-y) < EPS;
}
int main(void)
{
// 440 * 2^((x-6900)/1200) where x is the cent value given to ct2hz()
TEST_ASSERT(float_eq(fluid_ct2hz_real(13500), 19912.12696));
TEST_ASSERT(float_eq(fluid_ct2hz_real(12900), 14080));
TEST_ASSERT(float_eq(fluid_ct2hz_real(12899), 14071.86942));
TEST_ASSERT(float_eq(fluid_ct2hz_real(12700), 12543.85395));
TEST_ASSERT(float_eq(fluid_ct2hz_real(6900), 440));
TEST_ASSERT(float_eq(fluid_ct2hz_real(5700), 220));
TEST_ASSERT(float_eq(fluid_ct2hz_real(4500), 110));
TEST_ASSERT(float_eq(fluid_ct2hz_real(901), 13.75794461));
TEST_ASSERT(float_eq(fluid_ct2hz_real(900), 13.75));
TEST_ASSERT(float_eq(fluid_ct2hz_real(899), 13.74205998));
TEST_ASSERT(float_eq(fluid_ct2hz_real(1), 8.180522806));
TEST_ASSERT(float_eq(fluid_ct2hz_real(0), 8.175798916)); // often referred to as Absolute zero in the SF2 spec
return EXIT_SUCCESS;
}