diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/strscpy_kunit.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/lib/strscpy_kunit.c b/lib/strscpy_kunit.c index 98523f828d3a..a6b6344354ed 100644 --- a/lib/strscpy_kunit.c +++ b/lib/strscpy_kunit.c @@ -81,6 +81,8 @@ static void tc(struct kunit *test, char *src, int count, int expected, static void strscpy_test(struct kunit *test) { + char dest[8]; + /* * tc() uses a destination buffer of size 6 and needs at * least 2 characters spare (one for null and one to check for @@ -111,6 +113,17 @@ static void strscpy_test(struct kunit *test) tc(test, "ab", 4, 2, 2, 1, 1); tc(test, "a", 4, 1, 1, 1, 2); tc(test, "", 4, 0, 0, 1, 3); + + /* Compile-time-known source strings. */ + KUNIT_EXPECT_EQ(test, strscpy(dest, "", ARRAY_SIZE(dest)), 0); + KUNIT_EXPECT_EQ(test, strscpy(dest, "", 3), 0); + KUNIT_EXPECT_EQ(test, strscpy(dest, "", 1), 0); + KUNIT_EXPECT_EQ(test, strscpy(dest, "", 0), -E2BIG); + KUNIT_EXPECT_EQ(test, strscpy(dest, "Fixed", ARRAY_SIZE(dest)), 5); + KUNIT_EXPECT_EQ(test, strscpy(dest, "Fixed", 3), -E2BIG); + KUNIT_EXPECT_EQ(test, strscpy(dest, "Fixed", 1), -E2BIG); + KUNIT_EXPECT_EQ(test, strscpy(dest, "Fixed", 0), -E2BIG); + KUNIT_EXPECT_EQ(test, strscpy(dest, "This is too long", ARRAY_SIZE(dest)), -E2BIG); } static struct kunit_case strscpy_test_cases[] = { |