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Fixes: #3827
Summary
Makes jest ignore directories that start with a
.
by default in addition to ignoringnode_modules
. Ex:.cache
Motivation
When
$HOME
is the same as the application directory yarn will default to putting its cache directory at$APP_DIR/.cache/yarn/v1/...
and Jest will pick up tests in dependencies.This happens to users trying to use Jest with Heroku CI, where
$HOME
is/app
. Currently any user using both yarn and jest will hit this issue in that environment.Test plan
yarn test