Jest tests are failing due to some node_modules not being transpiled before loading

[academo]

Similar to #108 other dependencies like react-colorful or esm-browser are causing problems because they need to be transpiled before jest can loaded.

Context

When jest load tests it also needs to load the code dependencies from node_modules. Those dependencies sometimes need transformation before jest can load them otherwise nodejs can't run them. e.g.: because they are written in typescript or they are ESM that some nodejs version don't understand.

Jest has a configuration list of regex that tells it which packages should not transform, by default jest won't transform any module inside node_modules.

This previous PR created an exception for the package ol: open layers but there are much more packages that will have this problem and fail to run inside jest.

Suggested solutions:

• Create and maintain a list of packages that should be transformed by jest and keep the list up to date
• Ask jest to transform all packages regardless if they need transformation or not
• Let the users maintain the list of packages on their own

[grafanabot]

🚀 Issue was released in @grafana/create-plugin@0.5.3 🚀