Show that the selftests are executed from a fairly "normal" userspace context.
Signed-off-by: Thomas Weißschuh thomas.weissschuh@linutronix.de --- lib/kunit/kunit-uapi-example.c | 40 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 39 insertions(+), 1 deletion(-)
diff --git a/lib/kunit/kunit-uapi-example.c b/lib/kunit/kunit-uapi-example.c index 4ec4b924f29b089cce9ca5b2b08a6ee0117b8ae9..f7376e524b4c76a9c6d474e6ace80a8e2517b84b 100644 --- a/lib/kunit/kunit-uapi-example.c +++ b/lib/kunit/kunit-uapi-example.c @@ -6,13 +6,51 @@ * Author: Thomas Weißschuh thomas.weissschuh@linutronix.de */
+#ifndef NOLIBC +#include <fcntl.h> +#include <unistd.h> +#include <string.h> +#endif + #include "../../tools/testing/selftests/kselftest.h"
+static void test_procfs(void) +{ + char buf[256]; + ssize_t r; + int fd; + + fd = open("/proc/self/comm", O_RDONLY); + if (fd == -1) { + ksft_test_result_fail("procfs: open() failed: %s\n", strerror(errno)); + return; + } + + r = read(fd, buf, sizeof(buf)); + if (r == -1) { + close(fd); + ksft_test_result_fail("procfs: read() failed: %s\n", strerror(errno)); + return; + } + + close(fd); + + if (r > 0 && buf[r - 1] == '\n') + buf[r - 1] = '\0'; + + if (strncmp("kunit-uapi-exam", buf, sizeof(buf)) != 0) { + ksft_test_result_fail("procfs: incorrect comm: %s\n", buf); + return; + } + + ksft_test_result_pass("procfs\n"); +} + int main(void) { ksft_print_header(); ksft_set_plan(4); - ksft_test_result_pass("userspace test 1\n"); + test_procfs(); ksft_test_result_pass("userspace test 2\n"); ksft_test_result_skip("userspace test 3: some reason\n"); ksft_test_result_pass("userspace test 4\n");