1# Defends: implement a function from a stub until its test passes (Exercism/HumanEval style).
 2- id: roman-numerals
 3  fixture: roman
 4  turns:
 5    - implement to_roman in roman.rb so that `ruby roman_test.rb` passes
 6  expect:
 7    verify: ruby roman_test.rb
 8    files:
 9      roman.rb:
10        not_contains: ["NotImplementedError"]