diff options
Diffstat (limited to 'src/test/test-time.c')
| -rw-r--r-- | src/test/test-time.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/src/test/test-time.c b/src/test/test-time.c index ca44f81f9c..9062c3f3c1 100644 --- a/src/test/test-time.c +++ b/src/test/test-time.c @@ -1,5 +1,3 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - /*** This file is part of systemd. @@ -191,7 +189,21 @@ static void test_usec_add(void) { assert_se(usec_add(USEC_INFINITY, 2) == USEC_INFINITY); } +static void test_usec_sub(void) { + assert_se(usec_sub(0, 0) == 0); + assert_se(usec_sub(4, 1) == 3); + assert_se(usec_sub(4, 4) == 0); + assert_se(usec_sub(4, 5) == 0); + assert_se(usec_sub(USEC_INFINITY-3, -3) == USEC_INFINITY); + assert_se(usec_sub(USEC_INFINITY-3, -3) == USEC_INFINITY); + assert_se(usec_sub(USEC_INFINITY-3, -4) == USEC_INFINITY); + assert_se(usec_sub(USEC_INFINITY-3, -5) == USEC_INFINITY); + assert_se(usec_sub(USEC_INFINITY, 5) == USEC_INFINITY); +} + int main(int argc, char *argv[]) { + uintmax_t x; + test_parse_sec(); test_parse_time(); test_parse_nsec(); @@ -201,6 +213,15 @@ int main(int argc, char *argv[]) { test_timezone_is_valid(); test_get_timezones(); test_usec_add(); + test_usec_sub(); + + /* Ensure time_t is signed */ + assert_cc((time_t) -1 < (time_t) 1); + + /* Ensure TIME_T_MAX works correctly */ + x = (uintmax_t) TIME_T_MAX; + x ++; + assert((time_t) x < 0); return 0; } |