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| author | Mike Perry <mikeperry-git@torproject.org> | 2018-04-02 07:12:15 +0000 |
|---|---|---|
| committer | Mike Perry <mikeperry-git@torproject.org> | 2018-04-16 21:46:31 +0000 |
| commit | 0e06a9c3e76620881db95718f60441ce7de0f3c9 (patch) | |
| tree | 4a6c07b250da82aefe90a18bd5a5f0d5cf0ec8e1 /src/test | |
| parent | dfa6808f57e5856edd4e25a957f3f06707264199 (diff) | |
| download | tor-0e06a9c3e76620881db95718f60441ce7de0f3c9.tar.gz tor-0e06a9c3e76620881db95718f60441ce7de0f3c9.zip | |
Helper function to add u32 without overflow.
Diffstat (limited to 'src/test')
| -rw-r--r-- | src/test/test_util.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/test/test_util.c b/src/test/test_util.c index 24b43c899b..350273bf4c 100644 --- a/src/test/test_util.c +++ b/src/test/test_util.c @@ -6050,6 +6050,23 @@ test_util_monotonic_time_add_msec(void *arg) } static void +test_util_nowrap_math(void *arg) +{ + (void)arg; + + tt_u64_op(0, OP_EQ, tor_add_u32_nowrap(0, 0)); + tt_u64_op(1, OP_EQ, tor_add_u32_nowrap(0, 1)); + tt_u64_op(1, OP_EQ, tor_add_u32_nowrap(1, 0)); + tt_u64_op(4, OP_EQ, tor_add_u32_nowrap(2, 2)); + tt_u64_op(UINT32_MAX, OP_EQ, tor_add_u32_nowrap(UINT32_MAX-1, 2)); + tt_u64_op(UINT32_MAX, OP_EQ, tor_add_u32_nowrap(2, UINT32_MAX-1)); + tt_u64_op(UINT32_MAX, OP_EQ, tor_add_u32_nowrap(UINT32_MAX, UINT32_MAX)); + + done: + ; +} + +static void test_util_htonll(void *arg) { (void)arg; @@ -6243,6 +6260,7 @@ struct testcase_t util_tests[] = { UTIL_TEST(listdir, 0), UTIL_TEST(parent_dir, 0), UTIL_TEST(ftruncate, 0), + UTIL_TEST(nowrap_math, 0), UTIL_TEST(num_cpus, 0), UTIL_TEST_WIN_ONLY(load_win_lib, 0), UTIL_TEST_NO_WIN(exit_status, 0), |