source/tests/secure_random.test.c


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#include "../kit/secure_random.h"
#include <string.h>

#define KIT_TEST_FILE secure_random
#include "../kit/test.h"

TEST("secure random") {
  i32 v[20];
  memset(v, 0, sizeof v);

  REQUIRE_EQ(secure_random(40, v), KIT_OK);
  REQUIRE_EQ(secure_random(40, v + 10), KIT_OK);

  int repeats = 0;

  for (i32 i = 1; i < (i32) (sizeof v / sizeof *v); i++)
    for (i32 j = 0; j < i; j++)
      if (v[i] == v[j])
        repeats++;

  REQUIRE_EQ(repeats, 0);
}

#undef KIT_TEST_FILE