test.sh

#!/bin/sh

# Just a small bash script to run for all files under tests that end in .test
# To add execute permissions make sure you call `chmod +rwx test.sh`

if [ ! -d "tests/bin" ]; then
	echo "Creating bin folder under tests/bin"
	cd tests && mkdir bin
fi

for file in $(cd tests && ls); do
	if [ $file = '*.test' ]; then
		# Do file work
		filename="${file##*/}"
		echo == Test $filename ==
		sort -n < tests/$file > tests/bin/{$filename}_expected
		./usel < tests/$file > tests/bin/{$filename}_observed
		diff tests/bin/{$filename}_expected tests/bin/{$filename}_observed
	fi
done
rm tests/bin/*

To install you can just call the following;

wget https://gist.githubusercontent.com/BraedonWooding/2d3c33850c639bd80fe4f252a71b7e24/raw/4866a1c17adf2bf745f429a34a25987c871d2c0c/test.sh && chmod +rwx test.sh