Tests for module 'vdprintf'.

* modules/vdprintf-tests: New file.
* tests/test-vdprintf.c: New file.

1 files changed, 56 insertions, 0 deletions

diff --git a/tests/test-vdprintf.c b/tests/test-vdprintf.c
new file mode 100644
index 0000000000..f860c66161
--- /dev/null
+++ b/tests/test-vdprintf.c
@@ -0,0 +1,56 @@
+/* Test of vdprintf() function.
+   Copyright (C) 2011 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 <stdio.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (vdprintf, int, (int, const char *, va_list));
+
+#include <errno.h>
+
+#include "macros.h"
+
+static int
+my_dprintf (int fd, const char *format, ...)
+{
+  va_list args;
+  int ret;
+
+  va_start (args, format);
+  ret = vdprintf (fd, format, args);
+  va_end (args);
+  return ret;
+}
+
+int
+main (int argc, char *argv[])
+{
+  /* Test behaviour for invalid file descriptors.  */
+  {
+    errno = 0;
+    ASSERT (my_dprintf (-1, "test") == -1);
+    ASSERT (errno == EBADF);
+  }
+  {
+    errno = 0;
+    ASSERT (my_dprintf (99, "test") == -1);
+    ASSERT (errno == EBADF);
+  }
+
+  return 0;
+}