tests: added stress test for API

tests/integration/api-stress.sh

@@ -0,0 +1,92 @@
+#!/bin/bash
+#
+# Stress test for remote API
+#
+# @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
+# @copyright 2017, 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/>.
+##################################################################################
+
+SCRIPT=$(realpath $0)
+SCRIPTPATH=$(dirname ${SCRIPT})
+
+LOCAL_CONF=${SCRIPTPATH}/../../etc/loopback.json
+
+
+# Start VILLASnode instance with local config (via advio)
+villas-node file://${LOCAL_CONF} &
+PID=$!
+
+# Wait for node to complete init
+sleep 1
+
+FAILED=0
+SUCCESS=0
+
+FIFO=$(mktemp -t fifo.XXXXXX)
+rm ${FIFO}
+mkfifo ${FIFO}
+
+# Fifo must be opened in both directions!
+# https://www.gnu.org/software/libc/manual/html_node/FIFO-Special-Files.html#FIFO-Special-Files
+# Quote: "However, it has to be open at both ends simultaneously before you can proceed to do any input or output operations on it"
+exec 5<>${FIFO}
+
+JOBS=""
+for J in {1..100}; do
+	(
+		set -e
+		trap "echo error-trap >> ${FIFO}" ERR
+
+		FETCHED_CONF=$(mktemp)
+		
+		curl -sX POST --data '{ "action" : "config", "id" : "'$(uuidgen)'" }' http://localhost/api/v1 > ${FETCHED_CONF}
+		diff -u <(jq -S .response < ${FETCHED_CONF}) <(jq -S . < ${LOCAL_CONF})
+		RC=$?
+		
+		if [ "$RC" -eq "0" ]; then
+			echo success >&5
+		else
+			echo error >&5
+		fi
+	) &
+	JOBS+=" $!"
+done
+
+echo "Waiting for jobs to complete: $JOBS"
+wait $JOBS
+kill $PID
+wait $PID
+
+echo "Check return codes"
+FAILED=0
+SUCCESS=0
+for J in {1..100}; do
+	read status <&5
+	
+	if [ "$status" == "success" ]; then
+		let SUCCESS++
+	else
+		let FAILED++
+	fi
+done
+
+echo "Success: ${SUCCESS} / 100"
+if [ "$FAILED" -gt "0" ]; then
+	exit 1;
+fi