set -e
if [ -n "$V" ]; then
    set -x
fi
DIFF=${DIFF-diff}
TEST_SHELL=${TEST_SHELL-gash}

t="$1"
s=tests/$(basename "$t" .sh)

# This is a hack to make sure we can build from an external directory.
# We move into the source directory, and then send all of our output
# back to the build directory.
export TEST_TMP=$(pwd)
b=$(pwd)/$s
cd $(dirname "$t")/..

set +e
timeout 10 $TEST_SHELL -e "$s".sh -s --long file0 file1 > "$b".1 2> "$b".2
r=$?
set -e
if [ -f "$s".exit ]; then
    e=$(cat "$s".exit)
else
    e=0
fi
[ $r = $e ] || exit 1
if [ -f "$s".stdout ]; then
        $DIFF -u "$s".stdout $b.1
fi
if [ -f "$s".stderr ]; then
    $DIFF -u "$s".stderr "$b".2
fi