tests: add lvmetad shutdown on idle test

test/shell/lvmetad-autoshutdown.sh

@@ -0,0 +1,56 @@
+#!/bin/sh
+# Copyright (C) 2015 Red Hat, Inc. All rights reserved.
+#
+# This copyrighted material is made available to anyone wishing to use,
+# modify, copy, or redistribute it subject to the terms and conditions
+# of the GNU General Public License v.2.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+. lib/inittest
+
+test -e LOCAL_LVMETAD || skip
+test -e LOCAL_LVMPOLLD && skip
+
+kill -0 $(< LOCAL_LVMETAD) || die "lvmetad is already dead"
+
+lvmetad_timeout=3
+
+aux prepare_pvs 1
+
+vgcreate $vg1 "$dev1"
+
+kill $(< LOCAL_LVMETAD)
+aux prepare_lvmetad -t $lvmetad_timeout
+
+sleep $lvmetad_timeout
+
+# lvmetad should die after timeout, but give it some time to do so
+i=0
+while kill -0 $(< LOCAL_LVMETAD) 2>/dev/null; do
+	test $i -ge $((lvmetad_timeout*10)) && die "lvmetad didn't shutdown with optional timeout: $lvmetad_timeout seconds"
+	sleep .1
+	i=$((i+1))
+done
+
+aux prepare_lvmetad -t 0
+sleep 1
+# lvmetad must not die with -t 0 option
+kill -0 $(< LOCAL_LVMETAD) || die "lvmetad died"
+
+kill $(< LOCAL_LVMETAD)
+aux prepare_lvmetad -t $lvmetad_timeout
+
+sleep 1
+vgs
+sleep 1
+vgs
+sleep 1
+vgs
+
+# check that connection to lvmetad resets the timeout
+kill -0 $(< LOCAL_LVMETAD) || die "lvmetad died too soon"
+
+vgremove -ff $vg1