Jest: SyntaxError: Unexpected token at _load_jsdom

[jpmock]

Tried all of the above and using a brand new empty project with nothing but the sum getting started code.

Do you want to request a _feature_ or report a _bug_?

Bug

What is the current behavior?

When running npm test, I get the following:

FAIL ./sum.test.js
● Test suite failed to run

SyntaxError: Unexpected token {

  at _load_jsdom (node_modules/jest/node_modules/jest-cli/node_modules/jest-environment-jsdom/build/index.js:17:41)

If the current behavior is a bug, please provide the steps to reproduce and
either a repl.it demo through https://repl.it/languages/jest or a minimal
repository on GitHub that we can yarn install and yarn test.

1. Express Generate a fresh node.js app with all defaults.
2. npm install (to update all dependencies)
3. npm install jest --save (jest is 1.11.0)
4. Add sum.js and code from sample
5. Add sum.test.js and code from sample
6. Update package.json with
   "scripts": {
   "test": "jest"
   }
7. npm test

this is where I get the error:

SyntaxError: Unexpected token {

  at _load_jsdom (node_modules/jest/node_modules/jest-cli/node_modules/jest-environment-jsdom/build/index.js:17:41)

---

Sorry I do not have time for repl, but this could make or break my fortune 100 (Sorry, cannot disclose publicly) company's adoption of using this.

[ryanbagwell]

@jpmock running into the same issue. did you solve?

[ryanbagwell]

Answered my own question: the jest dependency jest-environment-jsdom is by default incompatible with node versions < 10. To fix, add the following to your jest config in package.json:

  "jest": {
    "testEnvironment": "node",
    ...other config
  },