added system tests

bin/tests/system/run.sh

@@ -0,0 +1,22 @@
+#!/bin/sh
+#
+# Run a system test.
+#
+. ./conf.sh
+
+test $# -gt 0 || { echo "usage: runtest.sh test-directory" >&2; exit 1; }
+
+test=$1
+shift
+
+test -d $test || { echo "$0: $test: no such test" >&2; exit 1; }
+
+# Set up any dynamically generated test data
+if test -f $test/setup.sh
+then
+   ( cd $test && sh setup.sh "$@" )
+fi
+
+# Start name servers running
+sh start.sh $test
+