denoland-deno/tests/node_compat/test/sequential/test-net-response-size.js

// deno-fmt-ignore-file
// deno-lint-ignore-file

// Copyright Joyent and Node contributors. All rights reserved. MIT license.
// Taken from Node 20.11.1
// This file is automatically generated by `tests/node_compat/runner/setup.ts`. Do not modify this file manually.

// Copyright Joyent, Inc. and other Node contributors.
//
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// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
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//
// The above copyright notice and this permission notice shall be included
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'use strict';
const common = require('../common');

// Make sure the net module's server doesn't throw an error when handling
// responses that are either too long or too small (especially on Windows)
// https://github.com/nodejs/node-v0.x-archive/issues/1697

const net = require('net');
const cp = require('child_process');

if (process.argv[2] === 'server') {
  // Server

  const server = net.createServer(function(conn) {
    conn.on('data', function(data) {
      console.log(`server received ${data.length} bytes`);
    });

    conn.on('close', function() {
      server.close();
    });
  });

  server.listen(common.PORT, '127.0.0.1', function() {
    console.log('Server running.');
  });

} else {
  // Client

  const serverProcess = cp.spawn(process.execPath, [process.argv[1], 'server']);
  serverProcess.stdout.pipe(process.stdout);
  serverProcess.stderr.pipe(process.stdout);

  serverProcess.stdout.once('data', function() {
    const client = net.createConnection(common.PORT, '127.0.0.1');
    client.on('connect', function() {
      const alot = Buffer.allocUnsafe(1024);
      const alittle = Buffer.allocUnsafe(1);

      for (let i = 0; i < 100; i++) {
        client.write(alot);
      }

      // Block the event loop for 1 second
      const start = (new Date()).getTime();
      while ((new Date()).getTime() < start + 1000);

      client.write(alittle);

      client.destroySoon();
    });
  });
}