Upgrade with-jest-typescript example to next 6.0.0 #4543
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lependu
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Jun 19, 2018
Hello! I ran into an issue using typescript and jest with next 6.0.0. I was able to work through fixing it and I wanted to share my solution back to next.js, by upgrading the with-jest-typescript example to next 6.0.0. The steps I followed were: 1. `npx babel-upgrade --write` which added babel-core@^7.0.0-bridge.0 to allow jest's babel 6 to play nice with next's babel 7 2. Remove `ts-jest` and replace with `babel-jest` to use babel to transform the typescript code, as is done when the dev and production builds run 3. Update the babelrc to use commonjs modules in test mode to be compatible with jest Also, I removed the `NODE_ENV=test` on the jest task, because jest sets the env to test anyways, and I'm on windows where this code is incorrect. The other option is to use `cross-env` but I felt it was simpler to just remove the environment override. To my knowledge, this PR would help on the following issues: vercel#3663 vercel#4227 vercel#4531 vercel#4528 vercel#4239
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Hello! I ran into an issue using typescript and jest with next 6.0.0. I was able to work through fixing it and I wanted to share my solution back to next.js, by upgrading the with-jest-typescript example to next 6.0.0.
The steps I followed were:
npx babel-upgrade --writewhich added babel-core@^7.0.0-bridge.0 to allow jest's babel 6 to play nice with next's babel 7ts-jestand replace withbabel-jestto use babel to transform the typescript code, as is done when the dev and production builds runAlso, I removed the
NODE_ENV=teston the jest task, because jest sets the env to test anyways, and I'm on windows where this code is incorrect. The other option is to usecross-envbut I felt it was simpler to just remove the environment override.To my knowledge, this PR would help on the following issues:
#3663 #4227 #4531 #4528 #4239