ReferenceError: test is not defined with Jest
10,667
Seems related to this issue: https://github.com/facebook/jest/issues/9538
Try upgrading your node version to at least v10.14.2 or downgrading jest to at most v25.2.2.
Author by
Wolf Fivousix
Updated on June 14, 2022Comments
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Wolf Fivousix almost 2 years
I am trying to run the most basic example with Jest, yet I don't seem to be able to. Followed the instructions here: https://jestjs.io/docs/en/getting-started.html
- npm init -y (for a base project)
- npm install --save-dev jest
- create sum.js file.
- create sum.test.js file.
- update "test" script.
- npm run test.
Boom, reference error. What am I missing here?
- npm v6.13.7
- node v10.13.0
- jest v26.0.1
This is my console output:
FAIL ./sum.test.js ● Test suite failed to run ReferenceError: test is not defined 1 | const sum = require('./sum'); 2 | > 3 | test('adds 1 + 2 to equal 3', () => { | ^ 4 | expect(sum(1, 2)).toBe(3); 5 | }); at Object.<anonymous> (sum.test.js:3:1) Test Suites: 1 failed, 1 total Tests: 0 total Snapshots: 0 total Time: 0.957 s Ran all test suites. (node:21384) ExperimentalWarning: The fs.promises API is experimental npm ERR! code ELIFECYCLE npm ERR! errno 1 npm ERR! [email protected] test: `jest` npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the [email protected] test script. npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
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Wolf Fivousix almost 4 yearsFriend, thank you so much! I don't know why I had such an older version of Node, but after updating it to v12.17, everything works! =)