Unit tests

[dreamchasersuon]

Unit Tests:
for TDD (a.k.a. Tests first, to drive design)
Cover every little detail, aim for 100% coverage
“Dev to dev” documentation: What should this class do?
Test individual classes in isolation, very fast

Cover every little detail and tend to cover 100% with unit tests will give us a hell of re-working every piece of test each time logic is changed))