Accessing jasmine with testRunner set to jest-circus results in: ReferenceError: jasmine is not defined

Question

On default jest allows you to simply access jasmine globally. But as soon as you switch the testRunner to jest-circus, jasmine is undefined. Following is a minimal, reproducible example:

babel.config.js

module.exports = {
  presets: [["@babel/preset-env", { targets: { node: "current" } }]],
};

jasmine.spec.js

it("check jasmine", () => {
  console.log(jasmine);
});

jest.config.js

module.exports = {
  rootDir: ".",
  testRunner: "jest-circus/runner",
};

package.json

{
  "name": "test-jest",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "jest"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "@babel/core": "^7.12.10",
    "@babel/preset-env": "^7.12.11",
    "babel-jest": "^26.6.3",
    "jest": "^26.6.3",
    "jest-circus": "^26.6.3"
  }
}

Running this test will cause following output:

$ npm test

> test-jest@1.0.0 test /Users/yusufaran/Projects/test/test-jest
> jest

 FAIL  ./jasmine.spec.js
  ✕ check jasmine (1 ms)

  ● check jasmine

    ReferenceError: jasmine is not defined

      1 | it("check jasmine", () => {
    > 2 |   console.log(jasmine);
        |               ^
      3 | });
      4 | 

      at Object.<anonymous> (jasmine.spec.js:2:15)

Test Suites: 1 failed, 1 total
Tests:       1 failed, 1 total
Snapshots:   0 total
Time:        1.01 s
Ran all test suites.
npm ERR! Test failed.  See above for more details.

If you remove/comment the testRunner line in jest.config.js (so it fallbacks to the default runner) it works as expected.

Question

How can I access global jasmine object with testRunner set to jest-circus/runner? If I can't, why?

score 17 · Accepted Answer · answered Feb 06 '21 at 04:05

You can’t access jasmine when you use jest-circus. This is by design. jest-circus is a new test runner that was built from scratch. It mimics jasmine functionality for defining tests (i.e., describe, it, everything except expect assertions and spies).

If you depend on jasmine, then npm install -D jest-jasmine2 and use it in your jest config:

{
  testRunner: 'jest-jasmine2'
}

Api · Answer 2 · 2021-12-01T16:03:15.433

5

Just adding testRunner: 'jasmine2' to jest.config.js did the trick for me

edited Dec 01 '21 at 16:03

answered Dec 01 '21 at 03:16

Api

1,582
1
14
16

that's literally what was suggested in the accepted answer.. – ysfaran Dec 01 '21 at 17:56
1

Nopes, my answer does not ask you to install jest-jasmine2 nor use jest-jasmine2 for testRunner – Api Dec 02 '21 at 02:35
I see i missed the `jest-` here, sorry – ysfaran Dec 02 '21 at 13:35
1

Note that this will not work with Jest 28 (upcoming version at the time of writing), and installing jest-jasmine2 is going to be required by then – Muizz Mahdy Jan 19 '22 at 12:51
This one solved the problem for me, the other one wth `jest-jasmine2` caused an error. – GarouDan Sep 28 '22 at 12:42
@GarouDan was the error "TypeError: Cannot read properties of undefined (reading 'enableGlobally')"? – Ivan Rubinson Aug 27 '23 at 08:45

Accessing jasmine with testRunner set to jest-circus results in: ReferenceError: jasmine is not defined

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