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89 lines
1.3 KiB
89 lines
1.3 KiB
#include <assert.h>
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#include "../../../src/ck_ec_timeutil.h"
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#include "fuzz_harness.h"
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#if ULONG_MAX > 4294967295
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typedef unsigned __int128 dword_t;
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#else
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typedef uint64_t dword_t;
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#endif
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struct example {
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struct timespec ts;
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uint32_t ns;
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};
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static const struct example examples[] = {
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{
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{
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42,
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100
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},
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1
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},
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{
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{
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42,
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100
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},
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2 * NSEC_MAX
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},
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{
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{
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42,
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NSEC_MAX
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},
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NSEC_MAX
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},
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{
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{
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TIME_MAX - 1,
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1000
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},
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2 * NSEC_MAX
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}
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};
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static inline int test_timespec_add_ns(const struct example *example)
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{
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struct timespec ts = {
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.tv_sec = example->ts.tv_sec,
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.tv_nsec = example->ts.tv_nsec
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};
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const uint32_t ns = example->ns;
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if (ts.tv_sec < 0) {
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ts.tv_sec = ~ts.tv_sec;
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}
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if (ts.tv_nsec < 0) {
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ts.tv_nsec = ~ts.tv_nsec;
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}
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ts.tv_nsec %= NSEC_MAX + 1;
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const struct timespec actual = timespec_add_ns(ts, ns);
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dword_t nanos =
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(dword_t)ts.tv_sec * (NSEC_MAX + 1) + ts.tv_nsec;
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if (ns > NSEC_MAX) {
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nanos += NSEC_MAX + 1;
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} else {
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nanos += ns;
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}
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if (nanos / (NSEC_MAX + 1) > TIME_MAX) {
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assert(actual.tv_sec == TIME_MAX);
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assert(actual.tv_nsec == NSEC_MAX);
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} else {
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assert(actual.tv_sec == (time_t)(nanos / (NSEC_MAX + 1)));
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assert(actual.tv_nsec == (long)(nanos % (NSEC_MAX + 1)));
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}
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return 0;
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}
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TEST(test_timespec_add_ns, examples)
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