webpack.test.config.js

module.exports = {
	// mode: 'development',
	module: {
		rules: [
			{
				test: /\.jsx?$/,
				exclude: /node_modules/,
				loader: 'babel-loader',
				options: {
					presets: [
						['es2015', { modules: false }],
						'react',
						'stage-2',
					],
				},
			},
		],
	},
};