small ash testsuite, adapted from bash
(only a small part of it, actually)
diff --git a/shell/ash_test/zecho.c b/shell/ash_test/zecho.c
new file mode 100644
index 0000000..621d06d
--- /dev/null
+++ b/shell/ash_test/zecho.c
@@ -0,0 +1,39 @@
+/* zecho - bare-bones echo */
+
+/* Copyright (C) 1996-2002 Free Software Foundation, Inc.
+
+ This file is part of GNU Bash, the Bourne Again SHell.
+
+ Bash 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 2, or (at your option) any later
+ version.
+
+ Bash 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 Bash; see the file COPYING. If not, write to the Free Software
+ Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+int
+main(argc, argv)
+int argc;
+char **argv;
+{
+ argv++;
+
+ while (*argv) {
+ (void)printf("%s", *argv);
+ if (*++argv)
+ putchar(' ');
+ }
+
+ putchar('\n');
+ exit(0);
+}