public/sh/tests/remake_test.sh

#!/usr/bin/env bash

IFS='
'

challenge () {
    if [[ $# -eq 1 && -d "$1" ]]; then
        submitted=$(bash student/remake.sh "$1")
        expected=$(bash solutions/remake.sh "$1"-expected)
        diff <(echo $submitted) <(echo $expected)
        diff <(ls -ltr $1) <(ls -ltr $1-expected)
    else
        diff <(bash student/remake.sh "$@") <(bash solutions/remake.sh "$@")
    fi
}

mkdir remake remake-expected
challenge remake 
challenge
challenge not-there
rm -rf remake remake-expected