From 73cde90c8badbeba32524c2708d26fea805fba1e Mon Sep 17 00:00:00 2001 From: Heinrich Schuchardt Date: Sat, 29 Jan 2022 16:33:16 +0100 Subject: [PATCH] test: test field truncation in snprint() The output size for snprint() should not only be respected for whole fields but also with fields. Add more tests. Signed-off-by: Heinrich Schuchardt --- test/print_ut.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/test/print_ut.c b/test/print_ut.c index a133907674..247011f2db 100644 --- a/test/print_ut.c +++ b/test/print_ut.c @@ -370,6 +370,18 @@ static int snprint(struct unit_test_state *uts) char buf[10] = "xxxxxxxxx"; int ret; + ret = snprintf(buf, 5, "%d", 12345678); + ut_asserteq_str("1234", buf); + ut_asserteq(8, ret); + ret = snprintf(buf, 5, "0x%x", 0x1234); + ut_asserteq_str("0x12", buf); + ut_asserteq(6, ret); + ret = snprintf(buf, 5, "0x%08x", 0x1234); + ut_asserteq_str("0x00", buf); + ut_asserteq(10, ret); + ret = snprintf(buf, 3, "%s", "abc"); + ut_asserteq_str("ab", buf); + ut_asserteq(3, ret); ret = snprintf(buf, 4, "%s:%s", "abc", "def"); ut_asserteq(0, buf[3]); ut_asserteq(7, ret); -- 2.39.5