diff --git a/tests/integration/relay.sh b/tests/integration/relay.sh
new file mode 100644
index 000000000..b094f4662
--- /dev/null
+++ b/tests/integration/relay.sh
@@ -0,0 +1,84 @@
+#!/bin/bash
+#
+# Integration test for villas relay
+#
+# @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
+# @copyright 2014-2021, Institute for Automation of Complex Power Systems, EONERC
+# @license GNU General Public License (version 3)
+#
+# VILLASnode
+#
+# This program 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 3 of the License, or
+# any later version.
+#
+# This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+##################################################################################
+
+set -e
+
+DIR=$(mktemp -d)
+pushd ${DIR}
+
+function finish {
+	popd
+	rm -rf ${DIR}
+}
+trap finish EXIT
+
+NUM_SAMPLES=100
+
+cat > config.json << EOF
+{
+	"nodes": {
+		"relay1": {
+			"type": "websocket",
+
+            "destinations": [
+                "http://localhost:8123/node"
+            ]
+		}
+
+        "relay2": {
+			"type": "websocket",
+
+            "destinations": [
+                "http://localhost:8123/node"
+            ]
+		}
+	}
+}
+EOF
+
+villas signal -l ${NUM_SAMPLES} -n random > input.dat
+
+# Test with loopback
+
+villas relay -l -p 8123 &
+
+villas pipe config.json relay1 < input.dat > output.dat
+
+villas compare input.dat output.dat
+
+kill %%
+wait %%
+
+rm output.dat
+
+# Test without loopback
+villas relay -p 8123 &
+
+villas pipe config.json -s relay1 < input.dat &
+villas pipe config.json -r relay2 > output.dat
+
+kill %1 %2
+wait %1 %2
+
+villas compare input.dat output.dat