// 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 cluster = require('cluster');
const net = require('net');

if (cluster.isMaster) {
  // Master opens and binds the socket and shares it with the worker.
  cluster.schedulingPolicy = cluster.SCHED_NONE;
  // Hog the TCP port so that when the worker tries to bind, it'll fail.
  const server = net.createServer(common.mustNotCall());

  server.listen(0, common.mustCall(() => {
    const worker = cluster.fork({ PORT: server.address().port });
    worker.on('exit', common.mustCall((exitCode) => {
      assert.strictEqual(exitCode, 0);
      server.close();
    }));
  }));
} else {
  assert(process.env.PORT);
  const s = net.createServer(common.mustNotCall());
  s.listen(process.env.PORT, common.mustNotCall('listen should have failed'));
  s.on('error', common.mustCall((err) => {
    assert.strictEqual(err.code, 'EADDRINUSE');
    process.disconnect();
  }));
}