Zeeg pushes back: per-test setup is duplicated code and especially bad for AI agents
zeeg · x · 2026-10-29
Zeeg lays out the opposing side of the testing debate:
- He argues that wanting "implicit correctness"-free, per-test resource management creates excessive amounts of duplicated code
- The beforeEach vs global setup dispute matters especially for AI agents: agents keep duplicating the same boilerplate setup across a codebase, semi-broken here and semi-broken there
- He notes pytest handles variable-dependent fixtures exceptionally well and wishes vitest had more of them
The real stakes: whether explicit resource management or implicit fixture mechanisms work better in human-and-agent codebases.
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