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Unit tests for monotonic time

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This commit is contained in:
Nick Mathewson 2016-07-13 10:23:00 -04:00
parent 2a217ef723
commit abcb8ce25d
1 changed files with 125 additions and 0 deletions
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125
src/test/test_util.c
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@ -5,6 +5,7 @@
#include "orconfig.h"
#define COMPAT_PRIVATE
#define COMPAT_TIME_PRIVATE
#define CONTROL_PRIVATE
#define UTIL_PRIVATE
#include "or.h"
@ -5285,6 +5286,128 @@ test_util_calloc_check(void *arg)
;
}
static void
test_util_monotonic_time(void *arg)
{
(void)arg;
monotime_t mt1, mt2;
monotime_coarse_t mtc1, mtc2;
uint64_t nsec1, nsec2, usec1, msec1;
uint64_t nsecc1, nsecc2, usecc1, msecc1;
monotime_get(&mt1);
monotime_coarse_get(&mtc1);
nsec1 = monotime_absolute_nsec();
usec1 = monotime_absolute_usec();
msec1 = monotime_absolute_msec();
nsecc1 = monotime_coarse_absolute_nsec();
usecc1 = monotime_coarse_absolute_usec();
msecc1 = monotime_coarse_absolute_msec();
tor_sleep_msec(200);
monotime_get(&mt2);
monotime_coarse_get(&mtc2);
nsec2 = monotime_absolute_nsec();
nsecc2 = monotime_coarse_absolute_nsec();
/* We need to be a little careful here since we don't know the system load.
*/
tt_i64_op(monotime_diff_msec(&mt1, &mt2), OP_GE, 175);
tt_i64_op(monotime_diff_msec(&mt1, &mt2), OP_LT, 1000);
tt_i64_op(monotime_coarse_diff_msec(&mtc1, &mtc2), OP_GE, 125);
tt_i64_op(monotime_coarse_diff_msec(&mtc1, &mtc2), OP_LT, 1000);
tt_u64_op(nsec2-nsec1, OP_GE, 175000000);
tt_u64_op(nsec2-nsec1, OP_LT, 1000000000);
tt_u64_op(nsecc2-nsecc1, OP_GE, 125000000);
tt_u64_op(nsecc2-nsecc1, OP_LT, 1000000000);
tt_u64_op(msec1, OP_GE, nsec1 / 1000000);
tt_u64_op(usec1, OP_GE, nsec1 / 1000);
tt_u64_op(msecc1, OP_GE, nsecc1 / 1000000);
tt_u64_op(usecc1, OP_GE, nsecc1 / 1000);
tt_u64_op(msec1, OP_LE, nsec1 / 1000000 + 1);
tt_u64_op(usec1, OP_LE, nsec1 / 1000 +10);
tt_u64_op(msecc1, OP_LE, nsecc1 / 1000000 + 1);
tt_u64_op(usecc1, OP_LE, nsecc1 / 1000 + 10);
done:
;
}
static void
test_util_monotonic_time_ratchet(void *arg)
{
(void)arg;
monotime_reset_ratchets_for_testing();
/* win32, performance counter ratchet. */
tt_i64_op(100, OP_EQ, ratchet_performance_counter(100));
tt_i64_op(101, OP_EQ, ratchet_performance_counter(101));
tt_i64_op(2000, OP_EQ, ratchet_performance_counter(2000));
tt_i64_op(2000, OP_EQ, ratchet_performance_counter(100));
tt_i64_op(2005, OP_EQ, ratchet_performance_counter(105));
tt_i64_op(3005, OP_EQ, ratchet_performance_counter(1105));
tt_i64_op(3005, OP_EQ, ratchet_performance_counter(1000));
tt_i64_op(3010, OP_EQ, ratchet_performance_counter(1005));
/* win32, GetTickCounts32 ratchet-and-rollover-detector. */
const int64_t R = ((int64_t)1) << 32;
tt_i64_op(5, OP_EQ, ratchet_coarse_performance_counter(5));
tt_i64_op(1000, OP_EQ, ratchet_coarse_performance_counter(1000));
tt_i64_op(5+R, OP_EQ, ratchet_coarse_performance_counter(5));
tt_i64_op(10+R, OP_EQ, ratchet_coarse_performance_counter(10));
tt_i64_op(4+R*2, OP_EQ, ratchet_coarse_performance_counter(4));
/* gettimeofday regular ratchet. */
struct timeval tv_in = {0,0}, tv_out;
tv_in.tv_usec = 9000;
ratchet_timeval(&tv_in, &tv_out);
tt_int_op(tv_out.tv_usec, OP_EQ, 9000);
tt_i64_op(tv_out.tv_sec, OP_EQ, 0);
tv_in.tv_sec = 1337;
tv_in.tv_usec = 0;
ratchet_timeval(&tv_in, &tv_out);
tt_int_op(tv_out.tv_usec, OP_EQ, 0);
tt_i64_op(tv_out.tv_sec, OP_EQ, 1337);
tv_in.tv_sec = 1336;
tv_in.tv_usec = 500000;
ratchet_timeval(&tv_in, &tv_out);
tt_int_op(tv_out.tv_usec, OP_EQ, 0);
tt_i64_op(tv_out.tv_sec, OP_EQ, 1337);
tv_in.tv_sec = 1337;
tv_in.tv_usec = 0;
ratchet_timeval(&tv_in, &tv_out);
tt_int_op(tv_out.tv_usec, OP_EQ, 500000);
tt_i64_op(tv_out.tv_sec, OP_EQ, 1337);
tv_in.tv_sec = 1337;
tv_in.tv_usec = 600000;
ratchet_timeval(&tv_in, &tv_out);
tt_int_op(tv_out.tv_usec, OP_EQ, 100000);
tt_i64_op(tv_out.tv_sec, OP_EQ, 1338);
tv_in.tv_sec = 1000;
tv_in.tv_usec = 1000;
ratchet_timeval(&tv_in, &tv_out);
tt_int_op(tv_out.tv_usec, OP_EQ, 100000);
tt_i64_op(tv_out.tv_sec, OP_EQ, 1338);
tv_in.tv_sec = 2000;
tv_in.tv_usec = 2000;
ratchet_timeval(&tv_in, &tv_out);
tt_int_op(tv_out.tv_usec, OP_EQ, 101000);
tt_i64_op(tv_out.tv_sec, OP_EQ, 2338);
done:
;
}
#define UTIL_LEGACY(name) \
{ #name, test_util_ ## name , 0, NULL, NULL }
@ -5373,6 +5496,8 @@ struct testcase_t util_tests[] = {
UTIL_TEST(touch_file, 0),
UTIL_TEST_NO_WIN(pwdb, TT_FORK),
UTIL_TEST(calloc_check, 0),
UTIL_TEST(monotonic_time, 0),
UTIL_TEST(monotonic_time_ratchet, TT_FORK),
END_OF_TESTCASES
};