- The solution uses the Money gem. The gem can be installed by running
bundle install - Bundler version is 2.1.4
- The Checkout class is initialised with an array of promotional rules, for example
-
checkout = Checkout.new([Rule1, Rule2]) - Rule1 and Rule2 are class names of the promotional rules
- Product codes are scanned, for example checkout.scan('001')
- The app reads from data.csv to obtain the list of products