Roman Calculator Kata

The goal of this lesson is to practice test-driven development by implementing a calculator that adds Roman numerals.

Setup

• Install nvm or nvm-windows for windows
• Install yarn
• In the root directory of the project, run the following commands:
  • nvm use
  • yarn install

Running tests

• To run tests, run the command yarn test
• To run in watch mode, run yarn test:watch

How do I write tests in Jest?

The Jest API is a good resource.