Flag to prevent Jest from using babel.

I have a post on stack overflow about having jest ignore the babel config.

I just also upgraded to babel-7 and I am getting issues. I saw this doc about using babel-jest.

Again as I state below, my code runs in node 9 I don’t need babel to run my tests, why is jest forcing me to use it?

From StackOverflow:

I am getting this error:

Couldn’t find preset “env” relative to directory

I have jest in a package with babel, the babel dependencies are not installed, which is why I am getting this error, but the file I am testing is the source, and with the version of node that I’m running I don’t need to compile, I only have babel in the project to ship the code I’m building as a postinstall script on lesser-versions of node then authored.

How can I shut off jest from forcing babel dependencies from being installed?

Now I’m getting

TypeError: Cannot read property 'loose' of undefined (While processing preset: "/Users/thomas/Project/node_modules/@babel/preset-env/lib/index.js")

[reggi]

Could I just use this:

{
  "jest": {
    "transform": {}
  }
}

[SimenB]

Jest will use babel anyways - it’s how we do coverage.

There are many issues and SO posts containing information on how to turn of the normal transform - please use search.