Organization ROI: Communication between developers and product owners become easier.
Engineer ROI: Instantly know why each test exists and what code to change when requirements change.
This change series allows you to make untestable code become easy to test, by decreasing coupling. Low-coupling code is easier to move incrementally between systems and share between teams.
Organization ROI: Communication between developers and product owners become easier.
Engineer ROI: Instantly know why each test exists and what code to change when requirements change.
Organization ROI: Tests tell you where you will pay costs on future stories.
Engineer ROI: Refactoring never requires updating tests.
Organization ROI: Begin automatically verifying your most important chunks of code. Reduce the cost of future changes.
Engineer ROI: Test responsibilities independently, even when they are in the same method.
Organization ROI: Tests speed up, have fewer false positives, and cover more of the code.
Engineer ROI: Every test passes 100% of the time when the code is right, fails 100% of the time when it is wrong, and executes in <1ms, in parallel with any other tests.
Organization ROI: Tests tell you where stories will cause non-local interaction bugs.
Engineer ROI: When the product is broken a test will fail. No longer have 2 parts of the code have different expectations.
Organization ROI: Reduce regression bugs and surprising interactions. New features no longer destabilize existing capabilities.
Engineer ROI: Test behaviors that arise from functionality split into different units.