1 files changed, 120 insertions, 0 deletions
diff --git a/tests/src/test-mathutils.c b/tests/src/test-mathutils.c
new file mode 100644
index 0000000..0a6eedf
--- /dev/null
+++ b/tests/src/test-mathutils.c
@@ -0,0 +1,120 @@
+#define AUBIO_UNSTABLE 1
+#include "aubio.h"
+#include "utils_tests.h"
+
+int test_next_power_of_two (void);
+int test_miditofreq (void);
+int test_freqtomidi (void);
+int test_aubio_window (void);
+
+int test_next_power_of_two (void)
+{
+  uint_t a, b;
+  a = 15; b = aubio_next_power_of_two(a); assert(b == 16);
+  fprintf(stdout, "aubio_next_power_of_two(%d) = %d\n", a, b);
+
+  a = 17; b = aubio_next_power_of_two(a); assert(b == 32);
+  fprintf(stdout, "aubio_next_power_of_two(%d) = %d\n", a, b);
+
+  a = 31; b = aubio_next_power_of_two(a); assert(b == 32);
+  fprintf(stdout, "aubio_next_power_of_two(%d) = %d\n", a, b);
+
+  a = 32; b = aubio_next_power_of_two(a); assert(b == 32);
+  fprintf(stdout, "aubio_next_power_of_two(%d) = %d\n", a, b);
+
+  a = 33; b = aubio_next_power_of_two(a); assert(b == 64);
+  fprintf(stdout, "aubio_next_power_of_two(%d) = %d\n", a, b);
+
+  return 0;
+}
+
+int test_miditofreq (void)
+{
+  smpl_t a, b;
+  fprintf(stdout, "b = aubio_miditofreq(a): [");
+  for ( a = -123.; a < 400.; a += 20. ) {
+    b = aubio_miditofreq(a);
+    fprintf(stdout, "(%.2f,  %.2f), ", a, b);
+  }
+  b = aubio_miditofreq(a);
+  fprintf(stdout, "(%.2f,  %.2f), ", a, b);
+  a = -69.5;
+  b = aubio_miditofreq(a);
+  fprintf(stdout, "(%.2f,  %.2f), ", a, b);
+  a = -169.5;
+  b = aubio_miditofreq(a);
+  fprintf(stdout, "(%.2f,  %.2f), ", a, b);
+  a = 140.;
+  b = aubio_miditofreq(a);
+  fprintf(stdout, "(%.2f,  %.2f), ", a, b);
+  a = 0;
+  b = aubio_miditofreq(a);
+  fprintf(stdout, "(%.2f,  %.2f), ", a, b);
+  a = 8.2e10;
+  b = aubio_miditofreq(a);
+  fprintf(stdout, "(%.2f,  %.2f), ", a, b);
+  a = -5.e10;
+  fprintf(stdout, "(%.2f,  %.2f)", a, b);
+  fprintf(stdout, "]\n");
+  return 0;
+}
+
+int test_freqtomidi (void)
+{
+  smpl_t midi, freq;
+  fprintf(stdout, "b = aubio_freqtomidi(a): [");
+  for ( freq = 0.; freq < 30000.; freq += 440. ) {
+    midi = aubio_freqtomidi(freq);
+    fprintf(stdout, "(%.2f,  %.2f), ", freq, midi);
+  }
+  freq = 69.5;
+  midi = aubio_freqtomidi(freq);
+  fprintf(stdout, "(%.2f,  %.2f), ", freq, midi);
+  freq = -69.5;
+  midi = aubio_freqtomidi(freq);
+  fprintf(stdout, "(%.2f,  %.2f), ", freq, midi);
+  freq = -169.5;
+  midi = aubio_freqtomidi(freq);
+  fprintf(stdout, "(%.2f,  %.2f), ", freq, midi);
+  freq = 140.;
+  midi = aubio_freqtomidi(freq);
+  fprintf(stdout, "(%.2f,  %.2f), ", freq, midi);
+  freq = 0;
+  midi = aubio_freqtomidi(freq);
+  fprintf(stdout, "(%.2f,  %.2f), ", freq, midi);
+  freq = 8.2e10;
+  midi = aubio_freqtomidi(freq);
+  fprintf(stdout, "(%.2f,  %.2f), ", freq, midi);
+  freq = -5.;
+  midi = aubio_freqtomidi(freq);
+  fprintf(stdout, "(%.2f,  %.2f)]\n", freq, midi);
+  return 0;
+}
+
+int test_aubio_window (void)
+{
+  uint_t window_size = 16;
+  fvec_t * window = new_aubio_window("default", window_size);
+  del_fvec(window);
+
+  window = new_fvec(window_size);
+  fvec_set_window(window, "rectangle");
+  fvec_print(window);
+
+  window_size /= 2.;
+  window = new_aubio_window("triangle", window_size);
+  fvec_print(window);
+  del_fvec(window);
+
+  window = new_aubio_window("rectangle", 16);
+  del_fvec (window);
+  return 0;
+}
+
+int main (void)
+{
+  test_next_power_of_two();
+  test_miditofreq();
+  test_freqtomidi();
+  return 0;
+}