#!/bin/sh

# Copyright (C) 2011-2020 Internet Systems Consortium, Inc. ("ISC")
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

# Checks that the initLogger() call uses for unit tests respects the setting of
# the environment variables.

# Exit with error if commands exit with non-zero and if undefined variables are
# used.
set -eu

# Include common test library.
# shellcheck disable=SC1091
# SC1091: Not following: ... was not specified as input (see shellcheck -x).
. "@abs_top_builddir@/src/lib/testutils/dhcp_test_lib.sh"

tempfile="@abs_builddir@/init_logger_test_tempfile_$$"
destfile_tmp="@abs_builddir@/init_logger_test_destfile_tmp_$$"
destfile="@abs_builddir@/init_logger_test_destfile_$$"

printf '1. Checking that KEA_LOGGER_SEVERITY/KEA_LOGGER_DBGLEVEL work:\n'

test_start 'init-logger.severity=DEBUG,dbglevel=99'
cat > $tempfile << .
DEBUG [kea.log] LOG_BAD_DESTINATION unrecognized log destination: debug-0
DEBUG [kea.log] LOG_BAD_DESTINATION unrecognized log destination: debug-50
DEBUG [kea.log] LOG_BAD_DESTINATION unrecognized log destination: debug-99
INFO  [kea.log] LOG_BAD_SEVERITY unrecognized log severity: info
WARN  [kea.log] LOG_BAD_STREAM bad log console output stream: warn
ERROR [kea.log] LOG_DUPLICATE_MESSAGE_ID duplicate message ID (error) in compiled code
FATAL [kea.log] LOG_NO_MESSAGE_ID line fatal: message definition line found without a message ID
.
KEA_LOGGER_DESTINATION=stdout KEA_LOGGER_SEVERITY=DEBUG KEA_LOGGER_DBGLEVEL=99 ./init_logger_test | \
    sed -e 's/\[\([a-z0-9\.]\{1,\}\)\/\([0-9]\{1,\}\)\.\(0x\)\{0,1\}\([0-9A-Fa-f]\{1,\}\)\]/[\1]/' | \
    cut -d' ' -f3- | diff $tempfile -
test_finish $?

test_start 'init-logger.severity=DEBUG,dbglevel=50'
cat > $tempfile << .
DEBUG [kea.log] LOG_BAD_DESTINATION unrecognized log destination: debug-0
DEBUG [kea.log] LOG_BAD_DESTINATION unrecognized log destination: debug-50
INFO  [kea.log] LOG_BAD_SEVERITY unrecognized log severity: info
WARN  [kea.log] LOG_BAD_STREAM bad log console output stream: warn
ERROR [kea.log] LOG_DUPLICATE_MESSAGE_ID duplicate message ID (error) in compiled code
FATAL [kea.log] LOG_NO_MESSAGE_ID line fatal: message definition line found without a message ID
.
KEA_LOGGER_DESTINATION=stdout KEA_LOGGER_SEVERITY=DEBUG KEA_LOGGER_DBGLEVEL=50 ./init_logger_test | \
    sed -e 's/\[\([a-z0-9\.]\{1,\}\)\/\([0-9]\{1,\}\)\.\(0x\)\{0,1\}\([0-9A-Fa-f]\{1,\}\)\]/[\1]/' | \
    cut -d' ' -f3- | diff $tempfile -
test_finish $?

test_start 'init-logger.severity=WARN'
cat > $tempfile << .
WARN  [kea.log] LOG_BAD_STREAM bad log console output stream: warn
ERROR [kea.log] LOG_DUPLICATE_MESSAGE_ID duplicate message ID (error) in compiled code
FATAL [kea.log] LOG_NO_MESSAGE_ID line fatal: message definition line found without a message ID
.
KEA_LOGGER_DESTINATION=stdout KEA_LOGGER_SEVERITY=WARN ./init_logger_test | \
    sed -e 's/\[\([a-z0-9\.]\{1,\}\)\/\([0-9]\{1,\}\)\.\(0x\)\{0,1\}\([0-9A-Fa-f]\{1,\}\)\]/[\1]/' | \
    cut -d' ' -f3- | diff $tempfile -
test_finish $?

printf '2. Checking that KEA_LOGGER_DESTINATION works:\n'

test_start 'init-logger.stdout'
cat > $tempfile << .
FATAL [kea.log] LOG_NO_MESSAGE_ID line fatal: message definition line found without a message ID
.
rm -f $destfile_tmp $destfile
KEA_LOGGER_SEVERITY=FATAL KEA_LOGGER_DESTINATION=stdout ./init_logger_test 1> $destfile_tmp
sed -e 's/\[\([a-z0-9\.]\{1,\}\)\/\([0-9]\{1,\}\)\.\(0x\)\{0,1\}\([0-9A-Fa-f]\{1,\}\)\]/[\1]/' < $destfile_tmp > $destfile
cut -d' ' -f3- $destfile | diff $tempfile -
test_finish $?

test_start 'init-logger.stderr'
rm -f $destfile_tmp $destfile
KEA_LOGGER_SEVERITY=FATAL KEA_LOGGER_DESTINATION=stderr ./init_logger_test 2> $destfile_tmp
sed -e 's/\[\([a-z0-9\.]\{1,\}\)\/\([0-9]\{1,\}\)\.\(0x\)\{0,1\}\([0-9A-Fa-f]\{1,\}\)\]/[\1]/' < $destfile_tmp > $destfile
cut -d' ' -f3- $destfile | diff $tempfile -
test_finish $?

test_start 'init-logger.file'
rm -f $destfile_tmp $destfile
KEA_LOGGER_SEVERITY=FATAL KEA_LOGGER_DESTINATION=$destfile_tmp ./init_logger_test
sed -e 's/\[\([a-z0-9\.]\{1,\}\)\/\([0-9]\{1,\}\)\.\(0x\)\{0,1\}\([0-9A-Fa-f]\{1,\}\)\]/[\1]/' < $destfile_tmp > $destfile
cut -d' ' -f3- $destfile | diff $tempfile -
test_finish $?

# Note: can't automatically test syslog output.

# Tidy up.
rm -f $tempfile $destfile_tmp $destfile