emilybache/DiscountApplier-TestDesign-Kata

the code has bugs and needs some unit tests. You'll need a test double too.

Discount Applier Test Design Kata

Exercise Instructions

The code in DiscountApplier contains bugs, marked with comments. Write tests that fail because of these bugs.

There is a video about this exercise The Undercover Agent in Unit Testing: Spy Test Doubles

Acknowledgements

This exercise was invented by Dimitri Merejkowsky and his original code is in his repo kata-doppelganger