1 files changed, 72 insertions, 0 deletions
diff --git a/tests/test-posix_spawn_file_actions_adddup2.c b/tests/test-posix_spawn_file_actions_adddup2.c
new file mode 100644
index 0000000..fe33c02
--- /dev/null
+++ b/tests/test-posix_spawn_file_actions_adddup2.c
@@ -0,0 +1,72 @@
+/* Test posix_spawn_file_actions_adddup2() function.
+   Copyright (C) 2011-2013 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include <spawn.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (posix_spawn_file_actions_adddup2, int,
+                 (posix_spawn_file_actions_t *, int, int));
+
+#include <errno.h>
+#include <limits.h>
+#include <unistd.h>
+
+#include "macros.h"
+
+/* Return a file descriptor that is too big to use.
+   Prefer the smallest such fd, except use OPEN_MAX if it is defined
+   and is greater than getdtablesize (), as that's how OS X works.  */
+static int
+big_fd (void)
+{
+  int fd = getdtablesize ();
+#ifdef OPEN_MAX
+  if (fd < OPEN_MAX)
+    fd = OPEN_MAX;
+#endif
+  return fd;
+}
+
+int
+main (void)
+{
+  int bad_fd = big_fd ();
+  posix_spawn_file_actions_t actions;
+
+  ASSERT (posix_spawn_file_actions_init (&actions) == 0);
+
+  /* Test behaviour for invalid file descriptors.  */
+  {
+    errno = 0;
+    ASSERT (posix_spawn_file_actions_adddup2 (&actions, -1, 2) == EBADF);
+  }
+  {
+    errno = 0;
+    ASSERT (posix_spawn_file_actions_adddup2 (&actions, bad_fd, 2) == EBADF);
+  }
+  {
+    errno = 0;
+    ASSERT (posix_spawn_file_actions_adddup2 (&actions, 2, -1) == EBADF);
+  }
+  {
+    errno = 0;
+    ASSERT (posix_spawn_file_actions_adddup2 (&actions, 2, bad_fd) == EBADF);
+  }
+
+  return 0;
+}