tests: added integration test for print hook

tests/integration/hook-print.sh

@@ -0,0 +1,43 @@
+#!/bin/bash
+#
+# Integration test for print hook.
+#
+# @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/>.
+##################################################################################
+
+INPUT_FILE=$(mktemp)
+OUTPUT_FILE1=$(mktemp)
+OUTPUT_FILE2=$(mktemp)
+
+NUM_SAMPLES=${NUM_SAMPLES:-100}
+
+# Prepare some test data
+villas-signal random -v 1 -r 10 -l ${NUM_SAMPLES} -n > ${INPUT_FILE}
+
+villas-hook print -o format=villas -o output=${OUTPUT_FILE1} < ${INPUT_FILE} > ${OUTPUT_FILE2}
+
+# Compare only the data values
+villas-test-cmp ${OUTPUT_FILE1} ${INPUT_FILE} && \
+villas-test-cmp ${OUTPUT_FILE2} ${INPUT_FILE}
+RC=$?
+
+rm -f ${INPUT_FILE} ${OUTPUT_FILE1} ${OUTPUT_FILE2}
+
+exit $RC