midUnit Testing
What is integration testing vs unit testing?
Updated May 6, 2026
Short answer
Unit tests isolate components; integration tests test combined modules.
Deep explanation
Unit tests are fast and isolated, while integration tests ensure components work together correctly.
Real-world example
Testing API + database interaction.
Common mistakes
- Mixing both types in same test.
Follow-up questions
- Which is faster?
- Which is more reliable?