@tsbb/jest/lib/transform/css.js

TSBB is a zero-config CLI that helps you develop, test, and publish modern TypeScript project.

// This is a custom Jest transformer turning style imports into empty objects.
// http://facebook.github.io/jest/docs/en/webpack.html
export default {
    process() {
        return {
            code: 'module.exports = {};',
        };
    },
    getCacheKey() {
        // The output is always the same.
        return 'cssTransform';
    },
};