From: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Date: Sat, 29 Jan 2022 15:33:16 +0000 (+0100)
Subject: test: test field truncation in snprint()
X-Git-Url: http://git.dujemihanovic.xyz/%22http:/www.sics.se/static/git-logo.png?a=commitdiff_plain;h=73cde90c8badbeba32524c2708d26fea805fba1e;p=u-boot.git

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 <heinrich.schuchardt@canonical.com>
---

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);