var path = require('path'); module.exports = { entry: './test/build/index.js', output: { filename: './test/build/coverage.js' }, bail: true, module: { loaders: [ { test: /\.json$/, loader: 'json-loader' }, { test: /\.css$/, loader: 'style-loader!css-loader' }, ], preLoaders: [ // instrument only testing sources with Istanbul { test: /\.js$/, include: path.resolve('lib/'), loader: 'istanbul-instrumenter' } ] } }