text: /*
   *
   * Copyright 2015, Google Inc.
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are
   * met:
   *
   *     * Redistributions of source code must retain the above copyright
   * notice, this list of conditions and the following disclaimer.
   *     * Redistributions in binary form must reproduce the above
   * copyright notice, this list of conditions and the following disclaimer
   * in the documentation and/or other materials provided with the
   * distribution.
   *     * Neither the name of Google Inc. nor the names of its
   * contributors may be used to endorse or promote products derived from
   * this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   */
  
  'use strict';
  
  var assert = require('assert');
  
  var grpc = require('..');
  var math = grpc.load(__dirname + '/../../proto/math/math.proto').math;
  
  
  /**
   * Client to use to make requests to a running server.
   */
  var math_client;
  
  /**
   * Server to test against
   */
  var getServer = require('./math/math_server.js');
  
  var server = getServer();
  
  describe('Async functionality', function() {
    before(function(done) {
      var port_num = server.bind('0.0.0.0:0',
                                 grpc.ServerCredentials.createInsecure());
      server.start();
      math_client = new math.Math('localhost:' + port_num,
                                  grpc.credentials.createInsecure());
      done();
    });
    after(function() {
      server.forceShutdown();
    });
    it('should not hang', function(done) {
      var chunkCount=0;
      var call = math_client.sum(function handleSumResult(err, value) {
        assert.ifError(err);
        assert.equal(value.num, chunkCount);
      });
  
      var path = require('path');
      var fs = require('fs');
      var fileToRead = path.join(__dirname, 'numbers.txt');
      var readStream = fs.createReadStream(fileToRead);
  
      readStream.once('readable', function () {
        readStream.on('data', function (chunk) {
          call.write({'num': 1});
          chunkCount += 1;
        });
  
        readStream.on('end', function () {
          call.end();
        });
  
        readStream.on('error', function (error) {
        });
      });
  
      call.on('status', function checkStatus(status) {
        assert.strictEqual(status.code, grpc.status.OK);
        done();
      });
    });
  });
  