test-ttyname_r tests: EBADF tests.

* tests/test-ttyname_r.c (main): Add tests for EBADF.

diff --git a/ChangeLog b/ChangeLog
index 2ee54d8..8e970c2 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2011-09-20  Bruno Haible  <bruno@clisp.org>
 
+       test-ttyname_r tests: EBADF tests.
+       * tests/test-ttyname_r.c (main): Add tests for EBADF.
+
        Tests for module 'isatty'.
        * modules/isatty-tests: New file.
        * tests/test-isatty.c: New file.

diff --git a/tests/test-ttyname_r.c b/tests/test-ttyname_r.c
index 698eb87..c28fe30 100644 (file)
--- a/tests/test-ttyname_r.c
+++ b/tests/test-ttyname_r.c
@@ -47,5 +47,19 @@ main (void)
   ASSERT (ttyname_r (fd, buf, sizeof (buf)) == 0);
   ASSERT (memcmp (buf, "/dev/", 5) == 0);
 
+  /* Test behaviour for invalid file descriptors.  */
+  {
+    int err = ttyname_r (-1, buf, sizeof (buf));
+    ASSERT (err == EBADF
+            || err == ENOTTY /* seen on FreeBSD 6.4 */
+           );
+  }
+  {
+    int err = ttyname_r (99, buf, sizeof (buf));
+    ASSERT (err == EBADF
+            || err == ENOTTY /* seen on FreeBSD 6.4 */
+           );
+  }
+
   return 0;
 }