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What are these changes?
Adds Jest and some basic unit tests to this project.
Why are these changes being made?
"To me, legacy code is simply code without tests." -Michael Feathers
Introducing a testing framework is an easy quality improvement add for any software project. This change does just that by adding the
test
script with Jest, as well as some simple tests for the primary components of this project.Checklist
pnpm run ci
succeeds.pnpm run test
succeeds.Additional notes:
estree-walker
andis-reference
do not have a CJS distribution, causing Jest to error. Following the ECMAScript Modules guide and setting--experimental-vm-modules
andextensionsToTreatAsEsm
resolved this.@gera2ld/plaid-test
andcross-env
have prior use in vm-shortcut and violentmonkey.