Garajeando

Thursday, April 2, 2026

Books I read (January - March 2026)

January
- The Fraud, Zadie Smith
- Son de Mar, Manuel Vicent
- Alien Clay, Adrian Tchaikovsky
- Misterios de Madrid, Antonio Muñoz Molina
- Simple Rules: How to Thrive in a Complex World, Donald Sull, Kathleen M. Eisenhardt
- The war of art, Steven Pressfield
- Solving the procrastination puzzle, Timothy A. Pychyl

February
- Ava en la noche, Manuel Vicent
- Dream Count, Chimamanda Ngozi Adichie
- Saturday night and Sunday morning, Alan Sillitoe
- Vibe Coding, Gene Kim, Steve Yegge

March
- Conscious Coaching: The Art and Science of Building Buy-In, Brett Bartholomew
- How to Understand Almost Anything: A Practitioner's Guide to Domain Analysis, Markus Voelter
- Last and First Men: A Story of the Near and Far Future, Olaf Stapledon

Saturday, February 28, 2026

Relevant Mutants in a Flash

Relevant Mutants.

Not all surviving mutants indicate weaknesses in tests.
Not relevant surviving mutants (don’t signal any test weakness):
- Ignore these ones:
  - In dead code (unreachable code)
  - In legacy seams (intentionally excluded from test execution).
  - Code not used because of legacy seams (also intentional).
- Mutants in superfluous code:
  - They survive because the mutation did not change any behavior.
  - Still useful 💰: signal a possible simplification (refactoring opportunity).
Relevant surviving mutants 💰: reveal genuine gaps in the test suite
- e.g. missing boundaries, too lenient assertions, etc.
Read Relevant Mutants.