text: // Copyright Joyent, Inc. and other Node contributors.
  //
  // Permission is hereby granted, free of charge, to any person obtaining a
  // copy of this software and associated documentation files (the
  // "Software"), to deal in the Software without restriction, including
  // without limitation the rights to use, copy, modify, merge, publish,
  // distribute, sublicense, and/or sell copies of the Software, and to permit
  // persons to whom the Software is furnished to do so, subject to the
  // following conditions:
  //
  // The above copyright notice and this permission notice shall be included
  // in all copies or substantial portions of the Software.
  //
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
  // NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
  // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  // USE OR OTHER DEALINGS IN THE SOFTWARE.
  
  'use strict';
  const common = require('../common');
  const assert = require('assert');
  const http = require('http');
  const net = require('net');
  
  // RFC 2616, section 10.2.5:
  //
  //   The 204 response MUST NOT contain a message-body, and thus is always
  //   terminated by the first empty line after the header fields.
  //
  // Likewise for 304 responses. Verify that no empty chunk is sent when
  // the user explicitly sets a Transfer-Encoding header.
  
  test(204);
  test(304);
  
  function test(statusCode) {
    const server = http.createServer(common.mustCall((req, res) => {
      res.writeHead(statusCode, { 'Transfer-Encoding': 'chunked' });
      res.end();
      server.close();
    }));
  
    server.listen(0, common.mustCall(() => {
      const conn = net.createConnection(
        server.address().port,
        common.mustCall(() => {
          conn.write('GET / HTTP/1.1\r\n\r\n');
  
          let resp = '';
          conn.setEncoding('utf8');
          conn.on('data', common.mustCall((data) => {
            resp += data;
          }));
  
          conn.on('end', common.mustCall(() => {
            // Connection: close should be in the response
            assert.strictEqual(/^Connection: close\r\n$/m.test(resp), true);
            // Make sure this doesn't end with 0\r\n\r\n
            assert.strictEqual(/^0\r\n$/m.test(resp), false);
          }));
        })
      );
    }));
  }
  