Project "package.json" file is overwritten while running "test"

[jacekk]

After migration from 1.1.1 to 1.3.0, running test task causes the project very package.json file to be overwritten by sth that jest-preset-coffeescript seems to be generating after last changes. Probably this one: b1dbe4f . Especially line 14 of jest-preset.coffee, where I can see fs.writeFileSync and package.json as the target file. I really doubt this is the expected behavior 🤔

Repo and branches comparison that reproduce the above issue: https://github.com/jacekk/jest-preset-coffeescript-override-issue-reproduce/compare/issue/jest-preset-coffeescript-1-3-0?expand=1

[danielbayley]

@jacekk See #46 (comment) …

[rposborne]

@danielbayley Not sure how #46 addesses this issue. It looks the file is using a relative path when loading the package json ( relative to jest-preset.cofffee but is writing to package.json which is unscoped and will write to the location where the node process originated from.

Long story short. https://github.com/danielbayley/jest-preset-coffeescript/blob/master/jest-preset.coffee#L14 will overwrite a projects package.json file. I would be happy to submit a PR but it is not clear why this code is here.