#!/usr/bin/env bash
# vim: ts=4 sw=4 noet:
#==================================================================================
#       Copyright (c) 2020 Nokia
#       Copyright (c) 2020 AT&T Intellectual Property.
#
#   Licensed under the Apache License, Version 2.0 (the "License");
#   you may not use this file except in compliance with the License.
#   You may obtain a copy of the License at
#
#       http://www.apache.org/licenses/LICENSE-2.0
#
#   Unless required by applicable law or agreed to in writing, software
#   distributed under the License is distributed on an "AS IS" BASIS,
#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#   See the License for the specific language governing permissions and
#   limitations under the License.
#==================================================================================

#
#	Mnemonic:	unit_test.sh
#	Abstract:	This drives the unit tests and combs out the needed .gcov
#				files which are by some magic collected for Sonar.
#
#	Date:		23 March 2020
#	Author:		E. Scott Daniels
# -----------------------------------------------------------------------------


# Make a list of our modules under test so that we don't look at gcov
# files that are generated for system lib headers in /usr/*
# (bash makes the process of building a list of names  harder than it
# needs to be, so use caution with the printf() call.)
#
function mk_list {
	grep -l "Source:\.\./src"  *.gcov | while read f
	do
		printf "$f "		# do NOT use echo or add \n!
	done
}

function abort_if_error {
	if (( $1 == 0 ))
	then
		return
	fi

	if [[ -n /tmp/PID$$.log ]]
	then
		$spew /tmp/PID$$.log
	fi
	echo "abort: $2"

	rm -f /tmp/PID$$.*
	exit 1
}

# -------------------------------------------------------------------------

spew="cat"					# default to dumping all make output on failure (-q turns it to ~40 lines)

if [[ -d ../.build ]]
then
	build_dir="../.build"
else
	if [[ -d ../build ]]
	then
		build_dir="../build"
	fi
fi

while [[ $1 == "-"* ]]
do
	case $1 in
		-q) spew="head -40";;
		-v)	spew="cat";;
	esac

	shift
done

while [[ $1 == *"="* ]]
do
	case ${1%%=*} in
		CMBUILD)
			export build_dir=${1##*=}
			;;
	esac

	shift
done

echo "## INFO ##"
echo "build dir=$build_dir"
if ! find $build_dir | grep "libricxfcpp.*"	# find returns good even if none; must grep to see error
then
	echo "building first..."
	(
		cd $build_dir
		make package
	)

	echo "build finished"
	find $build_dir -name "libricxfcpp.*"
fi
echo "## INFO ##"

export LD_LIBRARY_PATH=$build_dir:/usr/local/lib:$LD_LIBRARY_PATH
export LIBRARY_PATH=$build_dir:/usr/local/lib:$LIBRARY_PATH

cp config1.json config-file.json						# ensure default named file is there too

make nuke >/dev/null
make tests >/tmp/PID$$.log 2>&1
abort_if_error $? "unable to make"
echo "tests successfully built" >&2

spew="cat"

# order here is important to ensure coverage files accumulate
tests="metrics_test jhash_test config_test  unit_test"

#run everything, then generate coverage stats after all have run
for x in $tests
do
	./$x >/tmp/PID$$.log 2>&1
	abort_if_error $? "test failed: $x"
	grep SUMMARY /tmp/PID$$.log
done

# it seems that we loose coverage reporting if metrics_test's gcov file is generated
# after unit test.  Very strange. To be safe, run unit_test last.
#
for x in $tests
do
	gcov $x.c >/dev/null 2>&1
done

# wrapper_test is driven by jhash_test, but must be covered explicitly
gcov jwrapper_test.c >/dev/null 2>&1

./scrub_gcov.sh								# remove cruft

list=$( mk_list )
echo ""
echo "[INFO] coverage stats, discounted (raw), for the various modules:"
./parse_gcov.sh $list						# generate simple, short, coverage stats

rm -f /tmp/PID$$.*