happner/test/d7-event-off-by-handle-and path.js

distributed application engine with evented storage and mesh services

/**
 * Created by C Calitz on 8/25/2015.
 */


var Mesh = require('../');
var should = require('chai').should();
var path = require('path');

var config = {
  dataLayer: {
    port: 8080
  },
  modules: {},
  components: {
    "data": {}
  }
};

describe('d7 - Issue #113 - Event off by handle', function () {
  this.timeout(10000);
  var mesh;
  before(function (done) {
    mesh = new Mesh();
    mesh.initialize(config, function (initErr) {
      mesh.start(function (startErr) {
        done(initErr || startErr);
      });
    });
  });

  after(function (done) {
    mesh.stop();
    done();
  });


  it('01 - should subscribe to an event then unsubscribe by path', function (done) {
    var event_count = 0;
    var path = "test1/path";
    mesh.event.data.on(path, event_handler, function (err) {
      should.not.exist(err);

      mesh.exchange.data.set(path, 10);
    });

    function event_handler(message, _meta) {
      event_count++;

      mesh.event.data.off(path, function (err) {
        should.not.exist(err);
        mesh.exchange.data.set(path, 20, function () {
          setTimeout(checkCount, 500);
        });
      })
    }

    function checkCount() {
      event_count.should.be.eql(1);
      done();
    }
  });

  it('02 - should subscribe to an event then unsubscribe by handle', function (done) {
    var event_count = 0;
    var path = "test2/path";
    var handle = null;
    mesh.event.data.on(path, event_handler, function (err, _handle) {
      should.not.exist(err);
      handle = _handle;

      mesh.exchange.data.set(path, 10);
    });

    function event_handler(message, _meta) {
      event_count++;

      mesh.event.data.off(handle, function (err) {
        should.not.exist(err);
        mesh.exchange.data.set(path, event_count, function () {
          setTimeout(checkCount, 500);
        });
      })
    }

    function checkCount() {
      event_count.should.be.eql(1);
      done();
    }
  });

  it('02 - should subscribe to an event then unsubscribe by path', function (done) {
    var event_count = 0;
    var path = "test2/path";
    var handle = null;

    mesh.event.data.on(path, event_handler, function (err, _handle) {
      should.not.exist(err);
      handle = _handle;

      mesh.exchange.data.set(path, 10);
    });

    function event_handler(message, _meta) {
      event_count++;

      mesh.event.data.offPath(path, function (err) {
        should.not.exist(err);
        mesh.exchange.data.set(path, event_count, function () {
          setTimeout(checkCount, 500);
        });
      })
    }

    function checkCount() {
      event_count.should.be.eql(1);
      done();
    }
  });


});