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');
  
  var assert = require('assert');
  var fs = require('fs');
  var addListener = process.addAsyncListener;
  var removeListener = process.removeAsyncListener;
  
  var caught = 0;
  var expectCaught = 0;
  
  function asyncL() { }
  
  var callbacksObj = {
    error: function(domain, er) {
      caught++;
  
      switch (er.message) {
        case 'fs - nested file does not exist':
          return true;
  
        default:
          return false;
      }
    }
  };
  
  process.on('exit', function() {
    console.log('caught:', caught);
    console.log('expected:', expectCaught);
    assert.equal(caught, expectCaught, 'caught all expected errors');
    console.log('ok');
  });
  
  var listener = process.createAsyncListener(asyncL, callbacksObj);
  
  // Nested FS
  process.nextTick(function() {
    addListener(listener);
  
    setTimeout(function() {
      fs.stat('does not exist', function() {
        throw new Error('fs - nested file does not exist');
      });
      expectCaught++;
    });
  
    removeListener(listener);
  });
  