How to write tests (with Spring)

Why do we write test?

• We want to know that our code works
• We want to go faster (less debugging, knows that our code keeps working, ...)

How do we do this?

1. Expressive, Readable, Reveal intention, ...
2. Fast

Parts:

1. Naming Methods
2. ValueObjects
3. Use Assertj
4. Test Builders/Creating test objects - fragile tests
5. Pure functions
6. Adapter - Onion architecture
7. Extensions
8. Spring
   • Spring Context Caching
   • MockBean
   • Stubs
   • Annotations / Profiles

Great videos to watch on this topic

• Effective Unit Testing by Eliotte Rusty Harold
• Unit Testing like a Pro: The Circle of Purity by Victor Rentea