1 files changed, 32 insertions, 0 deletions
diff --git a/unittest/tesno_est.c b/unittest/tesno_est.c
new file mode 100644
index 0000000..8937b1b
--- /dev/null
+++ b/unittest/tesno_est.c
@@ -0,0 +1,32 @@
+/*---------------------------------------------------------------------------*\
+
+  FILE........: tesno_est.c
+  AUTHORS.....: David Rowe
+  DATE CREATED: Mar 2021
+
+  Test for C port of Es/No estimator.
+
+\*---------------------------------------------------------------------------*/
+
+#include <assert.h>
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "ofdm_internal.h"
+
+int main(int argc, char *argv[]) {
+  FILE *fin = fopen(argv[1], "rb");
+  assert(fin != NULL);
+  size_t nsym = atoi(argv[2]);
+  assert(nsym >= 0);
+  complex float rx_sym[nsym];
+  size_t nread = fread(rx_sym, sizeof(complex float), nsym, fin);
+  assert(nread == nsym);
+  fclose(fin);
+
+  float EsNodB = ofdm_esno_est_calc(rx_sym, nsym);
+  printf("%f\n", EsNodB);
+
+  return 0;
+}