Jest SVG and CSS modules mocks

global.d.ts

declare module '*.svg' {
  const content: any;
  export default content;
}

declare module '*.css' {
  const classNames: { [className: string]: string };
  export default classNames;
}

jest.config.js

module.exports = {
  moduleNameMapper: {
    '\\.svg': '<rootDir>/__mocks__/svgMock.js',
    '\\.css': 'identity-obj-proxy',
  },
};

svgMock.js

module.exports = 'svg-file';