deckle-testing

name	deckle-testing
description	Testing posture — test behavior not implementation, stay sober, grow coverage per workstream. Invoke before writing a test or extending coverage.
type	skill

Deckle — Testing

Intent

Code is built to be testable; the drift to avoid is "testable but unusable". Coverage grows per workstream: test what you touch, layer by layer, never the whole past at once.

How

Test what the code does, not how it does it — so a test survives a refactor.

Test against the value the code uses, not a copy of it — so a test follows a re-tune; a literal is fair only when it is itself the contract.