text: const fs = require('fs-extra');
  const looksSame = require('looks-same');
  
  function getImageDiff(path1, path2, diffPath, tolerance) {
    return new Promise(async (resolve, reject) => {
      const [reference, current] = (await Promise.all([
        fs.readFile(path1),
        fs.readFile(path2),
      ])).map(Buffer.from);
  
      if (current.equals(reference)) {
        return resolve(true);
      }
      if (reference.length === 0) {
        return reject(new Error('Reference image is empty'));
      }
      if (current.length === 0) {
        return reject(new Error('Current image is empty'));
      }
  
      return looksSame(reference, current, { tolerance }, (err, isSame) => {
        if (err) {
          reject(err);
        } else if (isSame) {
          resolve(isSame);
        } else {
          looksSame.createDiff(
            {
              reference,
              current,
              diff: diffPath,
              tolerance,
              highlightColor: '#ff00ff',
            },
            diffErr => {
              if (diffErr) {
                reject(diffErr);
              }
              resolve(false);
            }
          );
        }
      });
    });
  }
  
  module.exports = getImageDiff;
  