Test yesno in combination with closein.

* lib/yesno.c (yesno): Document use of stdin.
* modules/yesno-tests (Files): New module.
* tests/test-yesno.c (main): New file.
* tests/test-yesno.sh: Likewise.

1 files changed, 51 insertions, 0 deletions

diff --git a/tests/test-yesno.c b/tests/test-yesno.c
new file mode 100644
index 0000000000..1e15acddad
--- /dev/null
+++ b/tests/test-yesno.c
@@ -0,0 +1,51 @@
+/* Test of yesno module.
+   Copyright (C) 2007 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, 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 <stdlib.h>
+#include <unistd.h>
+
+#include "closein.h"
+#include "yesno.h"
+
+char *program_name;
+
+/* Test yesno.  Without arguments, read one line.  If first argument
+   is zero, close stdin before attempting to read one line.
+   Otherwise, read the number of lines specified by first
+   argument.  */
+int
+main (int argc, char **argv)
+{
+  int i = 1;
+  program_name = argv[0];
+  /* yesno recommends that all clients use close_stdin in main.  */
+  atexit (close_stdin);
+
+  if (1 < argc)
+    i = atoi (argv[1]);
+  if (!i)
+    {
+      i = 1;
+      close (0);
+    }
+  while (i--)
+    puts (yesno () ? "Y" : "N");
+  return 0;
+}