tests: add simple testcase for getttyname_malloc()

diff --git a/src/test/test-terminal-util.c b/src/test/test-terminal-util.c
index 958d369..e510b73 100644 (file)
--- a/src/test/test-terminal-util.c
+++ b/src/test/test-terminal-util.c
@@ -6,6 +6,7 @@
 #include "alloc-util.h"
 #include "fd-util.h"
 #include "macro.h"
+#include "path-util.h"
 #include "strv.h"
 #include "terminal-util.h"
 #include "tests.h"
@@ -52,7 +53,16 @@ static void test_read_one_char(void) {
         rewind(file);
         assert_se(read_one_char(file, &r, 1000000, &need_nl) < 0);
 
-        unlink(name);
+        assert_se(unlink(name) >= 0);
+}
+
+static void test_getttyname_malloc(void) {
+        _cleanup_free_ char *ttyname = NULL;
+        _cleanup_close_ int master = -1;
+
+        assert_se((master = posix_openpt(O_RDWR|O_NOCTTY)) >= 0);
+        assert_se(getttyname_malloc(master, &ttyname) >= 0);
+        assert_se(PATH_IN_SET(ttyname, "ptmx", "pts/ptmx"));
 }
 
 int main(int argc, char *argv[]) {
@@ -60,6 +70,7 @@ int main(int argc, char *argv[]) {
 
         test_default_term_for_tty();
         test_read_one_char();
+        test_getttyname_malloc();
 
         return 0;
 }