node/test/simple/test-asynclistener-pushlistener.js

// Copyright Joyent, Inc. and other Node contributors.
//
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//
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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var common = require('../common');
var assert = require('assert');
var net = require('net');

var listener0 = process.createAsyncListener({ create: function() { } });
var listener1 = process.createAsyncListener({ create: function() { } });

process.on('exit', function() {
  assert.ok(listened);
  console.log('ok');
});

var server = net.createServer(function(c) { });

var listened = false;
server.listen(common.PORT, function() {
  var handle = server._handle;

  handle.addAsyncListener(listener0);
  handle.addAsyncListener(listener0);
  handle.addAsyncListener(listener1);
  handle.addAsyncListener(listener1);

  assert.equal(handle._asyncQueue.length, 2);
  assert.deepEqual(handle._asyncQueue[0], listener0);
  assert.deepEqual(handle._asyncQueue[1], listener1);

  listened = true;

  server.close();
});