Solution Implemented in Python

[bowmanpete123]

Have I got it right here? I was unsure about implementing a full-on chain with an abstract interface because it would require changing the tests to pass, so I've built something that can pass the unit-tests outright

[den-t]

Hi Peter. I'd say go with the chain or the approach outlined below. Tests will most probably break/need to be extended and it's expected.
Currently, the two functions are not DRY (don't repeat yourself) and tests don't cover 'nomax' path.
There're no additional files in commits which is nice. Could you please close the first request?

A simpler solution without a chain would be to pass two parameters to the validation function:

1. the password to check
2. a dictionary with tests that should pass
   This way validation could be customised to skip max length or any other checks.