Simple functional testing with bash

output

1..4
ok 1 - scalar division
ok 2 - scalar multiplication
not ok 3 - multiply 1 BTC to the smallest unit
#
#    got '0 msat', expected '1 msat'
#
ok 4 - lots of msats

run

#!/usr/bin/env bash

n=1
c=$(wc -l < tests.csv)
fail=0

printf "1..%d\n" "$c"

while IFS=, read -r description args input expected
do
    output=$(../bcalc $args <<<"$input")
    if [ "$description" == "" ] || [ "$output" != "$expected" ]; then
        printf "not ok %d - %s\n" "$n" "$description"
        printf "#\n#    got '%s', expected '%s'\n#\n" "$output" "$expected"
        fail=1
    else
        printf "ok %d - %s\n" "$n" "$description"
    fi
    n=$((n + 1))
done < tests.csv

exit $fail

tests.csv

Made this for https://github.com/jb55/bcalc