set -euo pipefail

# Test for the `sep` option
echo 'ok!'

# Test for the `sep` function
echo 'ok!'

# Test for the `prefix` function
echo 'ok!'

# Test for the `quote` function
echo 'ok!'

# Test for the `squote` function
echo 'ok!'

# Test for the `suffix` function
echo 'ok!'

# Test for string concatenation
echo 'ok!'

# Ensure we can read each file
cat 'a.txt'
cat 'b.txt'
cat 'c.txt'