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E2E Tests are dangerous
Many companies try to replace Manual QA by E2E Tests. The result? Disaster.
Nov 20
•
Valentina Jemuović
9
1
3
TDD: High Coupling vs. Low Coupling Tests
When writing tests, it’s not enough to “just have tests.”
Nov 14
•
Valentina Jemuović
11
2
2
Manifesto for Deadline Driven Development
The result? Burnout and fragile systems.
Nov 11
•
Valentina Jemuović
9
7
3
Hexagonal Architecture - External World (The "outside")
Our system interacts with the external world through adapters
Nov 7
•
Valentina Jemuović
11
4
4
October 2025
Clean Architecture on the Backend: Data Flow
How does data flow through the system?
Oct 31
•
Valentina Jemuović
18
2
4
Superstar Developer is your greatest risk
Does delivery stop when someone’s out of office?
Oct 28
•
Valentina Jemuović
10
2
4
TDD in Legacy Code - Component Tests - Backend
How can Backend & Frontend teams get isolated feedback whether their part works, without waiting for the slow Acceptance Tests?
Oct 23
•
Valentina Jemuović
6
6
2
TDD is NOT about high code coverage
Code Coverage shows you what you haven't tested, not how good your tests are
Oct 17
•
Valentina Jemuović
9
2
3
Technical Debt
The hidden cost of copy-paste code
Oct 14
•
Valentina Jemuović
6
16
2
Hexagonal Architecture - Internal World (The "inside")
Our system core logic shouldn’t be affected by anything external
Oct 9
•
Valentina Jemuović
10
6
4
TDD: 1 unit test ≠ 1 class
TDD misconception: The class is the unit of isolation. That's wrong! Instead, the behavior is the unit of isolation.
Oct 3
•
Valentina Jemuović
15
6
4
September 2025
ATDD: Don’t skip tests even for simple code
Learning the hard way: even “simple” code needs tests. Automated testing isn't just for big complex projects.
Sep 30
•
Valentina Jemuović
10
6
3
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