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.
  
  
  if (!process.addAsyncListener) require('../index.js');
  if (!global.setImmediate) global.setImmediate = setTimeout;
  
  var assert = require('assert');
  
  function onAsync0() {
    return 0;
  }
  
  var set = 0;
  var asyncNoHandleError = {
    before : function () {
      set ++;
    },
    after : function () {
      set ++;
    }
  };
  
  var key = process.addAsyncListener(onAsync0, asyncNoHandleError);
  
  process.removeAsyncListener(key);
  
  setImmediate(function () {
    return 1;
  });
  
  process.on('exit', function () {
    // the async handler should never be called
    assert.equal(set, 0);
  
    console.log('ok');
  });
  