test: Add lvmetad_talk and lvmetad_dump to aux.

test/lib/aux.sh

@@ -86,6 +86,22 @@ prepare_lvmetad() {
 	echo ok
 }
 
+lvmetad_talk() {
+    if type -p socat >& /dev/null; then
+	socat "unix-connect:$TESTDIR/lvmetad.socket" -
+    elif echo | nc -U "$TESTDIR/lvmetad.socket"; then
+	nc -U "$TESTDIR/lvmetad.socket"
+    else
+	echo "WARNING: Neither socat nor nc -U seems to be available." 1>&2
+	echo "# failed to contact lvmetad"
+	return 1
+    fi | tee -a lvmetad-talk.txt
+}
+
+lvmetad_dump() {
+    (echo 'request="dump"'; echo '##') | lvmetad_talk "$@"
+}
+
 notify_lvmetad() {
 	if test -e LOCAL_LVMETAD; then
 		pvscan --cache "$@" || true

test/shell/lvmetad-dump.sh

@@ -16,24 +16,8 @@ aux prepare_pvs 2
 vgcreate $vg1 $dev1 $dev2
 lvcreate -n bar -l 1 $vg1
 
-lvmetad_talk() {
-    if type -p socat >& /dev/null; then
-	socat "unix-connect:$1" -
-    elif echo | nc -U "$1"; then
-	nc -U "$1"
-    else
-	echo "WARNING: Neither socat nor nc -U seems to be available." 1>&2
-	echo "# DUMP FAILED"
-	return 1
-    fi
-}
-
-lvmetad_dump() {
-    (echo 'request="dump"'; echo '##') | lvmetad_talk "$@"
-}
-
-(echo | lvmetad_talk ./lvmetad.socket) || skip
-lvmetad_dump ./lvmetad.socket | tee lvmetad.txt
+(echo | aux lvmetad_talk) || skip
+aux lvmetad_dump | tee lvmetad.txt
 
 grep $vg1 lvmetad.txt