tests: added new unit test for api capabilities

tests/integration/api-capabilities.sh

@@ -0,0 +1,47 @@
+#!/bin/bash
+#
+# Integration test for remote API
+#
+# @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
+# @copyright 2017-2018, 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
+
+FETCHED_CONF=$(mktemp)
+
+# Start without a configuration
+villas-node &
+PID=$!
+
+# Wait for node to complete init
+sleep 1
+
+# Fetch capabilities
+echo '{ "action" : "capabilities", "id" : "1" }' | nc -U /usr/local/var/lib/villas/node-*.sock > ${FETCHED_CONF}
+
+kill $PID
+wait
+
+jq -e '.response.apis | index( "capabilities" ) != null' < ${FETCHED_CONF}
+RC=$?
+
+rm ${FETCHED_CONF}
+
+exit $RC