#! /bin/sh
#
# SPDX-License-Identifier: BSD-2-Clause
#
# Copyright (c) 2018-2020 Gavin D. Howard and contributors.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this
#   list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright notice,
#   this list of conditions and the following disclaimer in the documentation
#   and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#

set -e

script="$0"
testdir=$(dirname "$script")

. "$testdir/../functions.sh"

if [ "$#" -ge 1 ]; then
	d="$1"
	shift
else
	err_exit "usage: $script dir [run_extra_tests] [run_stack_tests] [gen_tests] [time_tests] [exec args...]" 1
fi

if [ "$#" -lt 1 ]; then
	extra=1
else
	extra="$1"
	shift
fi

if [ "$#" -lt 1 ]; then
	run_stack_tests=1
else
	run_stack_tests="$1"
	shift
fi

if [ "$#" -lt 1 ]; then
	generate_tests=1
else
	generate_tests="$1"
	shift
fi

if [ "$#" -lt 1 ]; then
	time_tests=0
else
	time_tests="$1"
	shift
fi

if [ "$#" -lt 1 ]; then
	exe="$testdir/../bin/$d"
else
	exe="$1"
	shift
fi

stars="***********************************************************************"
printf '%s\n' "$stars"

if [ "$d" = "bc" ]; then
	halt="quit"
else
	halt="q"
fi

unset BC_ENV_ARGS
unset BC_LINE_LENGTH
unset DC_ENV_ARGS
unset DC_LINE_LENGTH

printf '\nRunning %s tests...\n\n' "$d"

while read t; do

	if [ "$extra" -eq 0  ]; then
		if [ "$t" = "trunc" ] || [ "$t" = "places" ] || [ "$t" = "shift" ] || \
		   [ "$t" = "lib2" ] || [ "$t" = "scientific" ] || [ "$t" = "rand" ] || \
		   [ "$t" = "engineering" ]
		then
			printf 'Skipping %s %s\n' "$d" "$t"
			continue
		fi
	fi

	sh "$testdir/test.sh" "$d" "$t" "$generate_tests" "$time_tests" "$exe" "$@"

done < "$testdir/$d/all.txt"

sh "$testdir/stdin.sh" "$d" "$exe" "$@"

sh "$testdir/scripts.sh" "$d" "$extra" "$run_stack_tests" "$generate_tests" "$time_tests" "$exe" "$@"
sh "$testdir/read.sh" "$d" "$exe" "$@"
sh "$testdir/errors.sh" "$d" "$exe" "$@"

num=100000000000000000000000000000000000000000000000000000000000000000000000000000
numres="$num"
num70="10000000000000000000000000000000000000000000000000000000000000000000\\
0000000000"

if [ "$d" = "bc" ]; then
	halt="halt"
	opt="x"
	lopt="extended-register"
	line_var="BC_LINE_LENGTH"
else
	halt="q"
	opt="l"
	lopt="mathlib"
	line_var="DC_LINE_LENGTH"
	num="$num pR"
fi

printf '\nRunning %s quit test...' "$d"

printf '%s\n' "$halt" | "$exe" "$@" > /dev/null 2>&1

if [ "$d" = bc ]; then
	printf '%s\n' "quit" | "$exe" "$@" > /dev/null 2>&1
	two=$("$exe" "$@" -e 1+1 -e quit)
	if [ "$two" != "2" ]; then
		err_exit "$d failed a quit test" 1
	fi
fi

printf 'pass\n'

base=$(basename "$exe")

if [ "$base" != "bc" -a "$base" != "dc" ]; then
	exit 0
fi

printf 'Running %s environment var tests...' "$d"

if [ "$d" = "bc" ]; then
	export BC_ENV_ARGS=" '-l' '' -q"
	export BC_EXPR_EXIT="1"
	printf 's(.02893)\n' | "$exe" "$@" > /dev/null
	"$exe" -e 4 "$@" > /dev/null
else
	export DC_ENV_ARGS="'-x'"
	export DC_EXPR_EXIT="1"
	printf '4s stuff\n' | "$exe" "$@" > /dev/null
	"$exe" -e 4pR "$@" > /dev/null
fi

printf 'pass\n'

out1="$testdir/../.log_$d.txt"
out2="$testdir/../.log_${d}_test.txt"

printf 'Running %s line length tests...' "$d"

printf '%s\n' "$numres" > "$out1"

export "$line_var"=80
printf '%s\n' "$num" | "$exe" "$@" > "$out2"

diff "$out1" "$out2"

printf '%s\n' "$num70" > "$out1"

export "$line_var"=2147483647
printf '%s\n' "$num" | "$exe" "$@" > "$out2"

diff "$out1" "$out2"

printf 'pass\n'

printf 'Running %s arg tests...' "$d"

f="$testdir/$d/add.txt"
exprs=$(cat "$f")
results=$(cat "$testdir/$d/add_results.txt")

printf '%s\n%s\n%s\n%s\n' "$results" "$results" "$results" "$results" > "$out1"

"$exe" "$@" -e "$exprs" -f "$f" --expression "$exprs" --file "$f" -e "$halt" > "$out2"

diff "$out1" "$out2"

printf '%s\n' "$halt" | "$exe" "$@" -- "$f" "$f" "$f" "$f" > "$out2"

diff "$out1" "$out2"

if [ "$d" = "bc" ]; then
	printf '%s\n' "$halt" | "$exe" "$@" -i > /dev/null 2>&1
fi

printf '%s\n' "$halt" | "$exe" "$@" -h > /dev/null
printf '%s\n' "$halt" | "$exe" "$@" -P > /dev/null
printf '%s\n' "$halt" | "$exe" "$@" -v > /dev/null
printf '%s\n' "$halt" | "$exe" "$@" -V > /dev/null

set +e

"$exe" "$@" -f "saotehasotnehasthistohntnsahxstnhalcrgxgrlpyasxtsaosysxsatnhoy.txt" > /dev/null 2> "$out2"
err="$?"

checktest "$d" "$err" "invalid file argument" "$out2" "$d"

"$exe" "$@" "-$opt" -e "$exprs" > /dev/null 2> "$out2"
err="$?"

checktest "$d" "$err" "invalid option argument" "$out2" "$d"

"$exe" "$@" "--$lopt" -e "$exprs" > /dev/null 2> "$out2"
err="$?"

checktest "$d" "$err" "invalid long option argument" "$out2" "$d"

"$exe" "$@" "-u" -e "$exprs" > /dev/null 2> "$out2"
err="$?"

checktest "$d" "$err" "unrecognized option argument" "$out2" "$d"

"$exe" "$@" "--uniform" -e "$exprs" > /dev/null 2> "$out2"
err="$?"

checktest "$d" "$err" "unrecognized long option argument" "$out2" "$d"

"$exe" "$@" -f > /dev/null 2> "$out2"
err="$?"

checktest "$d" "$err" "missing required argument to short option" "$out2" "$d"

"$exe" "$@" --file > /dev/null 2> "$out2"
err="$?"

checktest "$d" "$err" "missing required argument to long option" "$out2" "$d"

"$exe" "$@" --version=5 > /dev/null 2> "$out2"
err="$?"

checktest "$d" "$err" "given argument to long option with no argument" "$out2" "$d"

printf 'pass\n'

printf 'Running %s directory test...' "$d"

"$exe" "$@" "$testdir" > /dev/null 2> "$out2"
err="$?"

checktest "$d" "$err" "directory" "$out2" "$d"

printf 'pass\n'

printf 'Running %s binary file test...' "$d"

bin="/bin/sh"

"$exe" "$@" "$bin" > /dev/null 2> "$out2"
err="$?"

checktest "$d" "$err" "binary file" "$out2" "$d"

printf 'pass\n'

printf 'Running %s binary stdin test...' "$d"

cat "$bin" | "$exe" "$@" > /dev/null 2> "$out2"
err="$?"

checktest "$d" "$err" "binary stdin" "$out2" "$d"

printf 'pass\n'

if [ "$d" = "bc" ]; then

	printf 'Running %s limits tests...' "$d"
	printf 'limits\n' | "$exe" "$@" > "$out2" /dev/null 2>&1

	if [ ! -s "$out2" ]; then
		err_exit "$d did not produce output on the limits test" 1
	fi

	printf 'pass\n'

fi

printf '\nAll %s tests passed.\n' "$d"

printf '\n%s\n' "$stars"