[for-linus][PATCH 1/5] selftests/user_events: Test struct size match cases

Steven Rostedt
2023-07-12T22:01:45Z

From: Beau Belgrave <beaub@linux.microsoft.com>

The self tests for user_events currently does not ensure that the edge
case for struct types work properly with size differences.

Add cases for mis-matching struct names and sizes to ensure they work
properly.

Link: https://lkml.kernel.org/r/20230629235049.581-3-beaub@linux.microsoft.com

Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: linux-kselftest@vger.kernel.org
Signed-off-by: Beau Belgrave <beaub@linux.microsoft.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
---
tools/testing/selftests/user_events/dyn_test.c | 12 ++++++++++++
1 file changed, 12 insertions(+)

diff --git a/tools/testing/selftests/user_events/dyn_test.c b/tools/testing/selftests/user_events/dyn_test.c
index d6979a48478f..91a4444ad42b 100644
--- a/tools/testing/selftests/user_events/dyn_test.c
+++ b/tools/testing/selftests/user_events/dyn_test.c
@@ -217,6 +217,18 @@ TEST_F(user, matching) {
/* Types don't match */
TEST_NMATCH("__test_event u64 a; u64 b",
"__test_event u32 a; u32 b");
+
+ /* Struct name and size matches */
+ TEST_MATCH("__test_event struct my_struct a 20",
+ "__test_event struct my_struct a 20");
+
+ /* Struct name don't match */
+ TEST_NMATCH("__test_event struct my_struct a 20",
+ "__test_event struct my_struct b 20");
+
+ /* Struct size don't match */
+ TEST_NMATCH("__test_event struct my_struct a 20",
+ "__test_event struct my_struct a 21");
}

int main(int argc, char **argv)
--
2.40.1