Added another regression test which is currently commented out, since it

is not yet fixed.

regress/bin/sh/Makefile

@@ -1,4 +1,4 @@
-#	$NetBSD: Makefile,v 1.9 2005/12/10 14:22:17 yamt Exp $
+#	$NetBSD: Makefile,v 1.10 2006/05/12 00:05:59 rillig Exp $
 
 NOMAN=  	# defined
 
@@ -10,5 +10,6 @@ regress:
 	sh ${.CURDIR}/fsplit.sh
 	sh ${.CURDIR}/here.sh
 	sh ${.CURDIR}/set_e.sh
+	#sh ${.CURDIR}/expand.sh	# First needs to be fixed.
 
 .include <bsd.prog.mk>

regress/bin/sh/expand.sh

@@ -0,0 +1,29 @@
+#! /bin/sh
+# $NetBSD: expand.sh,v 1.1 2006/05/12 00:05:59 rillig Exp $
+#
+
+#
+# This file tests the functions in expand.c.
+#
+
+set -e
+
+# usage: assert_equals <testname> <expected> <got>
+assert_equals() {
+  if test "$2" != "$3"; then
+    echo "FAIL in testcase $1: expected [$2], got [$3]" 1>&2
+    false
+  fi
+}
+
+#
+# Somewhere between 2.0.2 and 3.0 the expansion of the $@ variable had
+# been broken.
+#
+
+got=`echo "" "" | sed 's,$,EOL,'`	# This one should work everywhere.
+assert_equals "1" " EOL" "$got"
+
+set -- "" ""				# This code triggered the bug.
+got=`echo "$@" | sed 's,$,EOL,'`
+assert_equals "2" " EOL" "$got"