The Money example

Example of typical model code driven completely by tests took from the famous Kent Beck's book: Test Driven Development: By Example.

The aim of this repo was to track the progress made through the reading of such a book.

The TDD cycle followed

1. Add a little test
2. Run all tests and fail
3. Make a change
4. Run the tests and succeed
5. Refactor to remove duplication

Keys when applying TDD

• The three approaches to making a test work cleanly: fake it, triangulation and obvious implementation
• Removing duplication between test and code as a way to drive the design
• The ability to control the gap between tests to increase traction when the road gets slippery and cruise faster when conditions are clear