@openzeppelin/solidity-loader/test/compiler.js

Webpack Solidity Hot Loader

import path from 'path';
import webpack from 'webpack';
import Memoryfs from 'memory-fs';

export default (fixture, options = {}) => {
  const compiler = webpack({
    context: __dirname,
    entry: `./${fixture}`,
    output: {
      path: path.resolve(__dirname),
      filename: 'bundle.js',
    },
    module: {
      rules: [
        {
          test: /\.sol$/,
          use: [
            { loader: 'json-loader' },
            {
              loader: path.resolve(__dirname, '../index.js'),
              options,
            },
          ],
        },
      ],
    },
  });

  compiler.outputFileSystem = new Memoryfs();

  return new Promise((resolve, reject) => {
    compiler.run((err, stats) => {
      if (err || stats.hasErrors()) reject(err);

      resolve(stats);
    });
  });
};