text: 'use strict';
  const common = require('../common');
  const assert = require('assert');
  const zlib = require('zlib');
  
  const data = Buffer.concat([
    zlib.gzipSync('abc'),
    zlib.gzipSync('def')
  ]);
  
  const resultBuffers = [];
  
  const unzip = zlib.createUnzip()
    .on('error', (err) => {
      assert.ifError(err);
    })
    .on('data', (data) => resultBuffers.push(data))
    .on('finish', common.mustCall(() => {
      assert.deepStrictEqual(Buffer.concat(resultBuffers).toString(), 'abcdef',
                             `'${Buffer.concat(resultBuffers).toString()}' ` +
                             'should match \'abcdef\' after ' +
                             'zipping and unzipping');
    }));
  
  for (let i = 0; i < data.length; i++) {
    // Write each single byte individually.
    unzip.write(Buffer.from([data[i]]));
  }
  
  unzip.end();
  