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Diffstat (limited to '')
-rw-r--r-- | fluent-bit/tests/internal/random.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/fluent-bit/tests/internal/random.c b/fluent-bit/tests/internal/random.c new file mode 100644 index 00000000..236eaa57 --- /dev/null +++ b/fluent-bit/tests/internal/random.c @@ -0,0 +1,33 @@ +/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ + +#include <fluent-bit/flb_random.h> + +#include "flb_tests_internal.h" + +void test_random_bytes() +{ + int ret; + unsigned char buf1[64] = {0}; + unsigned char buf2[64] = {0}; + + /* The following tests check whether: + * + * (1) the random generator fills the buffer with numbers at all. + * (2) a successive call generates different numbers. + * + * These tests are probabilistic by nature; If we assume an ideal random + * generator, they are expected to fail once in 2^192 (= 10^57) runs. + */ + ret = flb_random_bytes(buf1, 64); + TEST_CHECK(ret == 0); + TEST_CHECK(memcmp(buf1, buf2, 64) != 0); + + ret = flb_random_bytes(buf2, 64); + TEST_CHECK(ret == 0); + TEST_CHECK(memcmp(buf1, buf2, 64) != 0); +} + +TEST_LIST = { + {"random_bytes", test_random_bytes}, + { 0 } +}; |