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 health = require('../health_check/health.js');
  
  var grpc = require('../');
  
  describe('Health Checking', function() {
    var statusMap = {
      '': {
        '': 'SERVING',
        'grpc.test.TestService': 'NOT_SERVING',
      },
      virtual_host: {
        'grpc.test.TestService': 'SERVING'
      }
    };
    var healthServer = new grpc.Server();
    healthServer.addProtoService(health.service,
                                 new health.Implementation(statusMap));
    var healthClient;
    before(function() {
      var port_num = healthServer.bind('0.0.0.0:0',
                                       grpc.ServerCredentials.createInsecure());
      healthServer.start();
      healthClient = new health.Client('localhost:' + port_num,
                                       grpc.Credentials.createInsecure());
    });
    after(function() {
      healthServer.shutdown();
    });
    it('should say an enabled service is SERVING', function(done) {
      healthClient.check({service: ''}, function(err, response) {
        assert.ifError(err);
        assert.strictEqual(response.status, 'SERVING');
        done();
      });
    });
    it('should say that a disabled service is NOT_SERVING', function(done) {
      healthClient.check({service: 'grpc.test.TestService'},
                         function(err, response) {
                           assert.ifError(err);
                           assert.strictEqual(response.status, 'NOT_SERVING');
                           done();
                         });
    });
    it('should say that a service on another host is SERVING', function(done) {
      healthClient.check({host: 'virtual_host', service: 'grpc.test.TestService'},
                         function(err, response) {
                           assert.ifError(err);
                           assert.strictEqual(response.status, 'SERVING');
                           done();
                         });
    });
    it('should get NOT_FOUND if the service is not registered', function(done) {
      healthClient.check({service: 'not_registered'}, function(err, response) {
        assert(err);
        assert.strictEqual(err.code, grpc.status.NOT_FOUND);
        done();
      });
    });
    it('should get NOT_FOUND if the host is not registered', function(done) {
      healthClient.check({host: 'wrong_host', service: 'grpc.test.TestService'},
                         function(err, response) {
                           assert(err);
                           assert.strictEqual(err.code, grpc.status.NOT_FOUND);
                           done();
                         });
    });
  });
  