javascript - How to exclude CSS module files from jest test suites? -


i have react component test, import css using webpack following.

 import styles '../../node_modules/openlayers/css/ol.css' // eslint-disable-line no-unused-vars

after running jest error:

c:\users\...\node_modules\openlayers\css\ol.css:1     ({"object.<anonymous>":function(module,exports,require,__dirname,__filename,global,jest){.ol-box {                                                                                              ^     syntaxerror: unexpected token .

how exclude css files jest test suites?

you can create own mock in jest prevent processing of css files.

// __mocks__/stylemock.js  module.exports = {};

then in package.json can map css files stylemock.js file under modulenamemapper option:

"jest": {   ...   "modulenamemapper": {     ...     "\\.(css|less)$": "<rootdir>/__mocks__/stylemock.js"   },   .. },

see https://facebook.github.io/jest/docs/en/webpack.html#handling-static-assets more info.


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