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Cache Clear Hook Killed a Test Suite

takeaway 2 connections

Audience war story: on joining a new company, the test suite took ~15 minutes. test-prof revealed that someone had configured RSpec to clear the Rails cache (and a few related lines) before every example. Removing that single configuration line cut the suite from 15 minutes to 40 seconds.

type
lesson-learned
takeaway Cache Clear Hook Killed a Test Suite
about
test-prof tool
The contributor used test-prof to identify the RSpec before-each Rails.cache.clear that was the root cause.
takeaway Cache Clear Hook Killed a Test Suite
from_talk
Ever shorter feedback loop talk
Audience war story shared during Q&A.

Provenance

Created in
Ever shorter feedback loop — Krzysztof Hasiński at wroclo... 2026-04-17 18:12
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2 extractions