Test drive your bus.io apps with bus.io-driver.

var Message = require('bus.io-common').Message;
var driver = require('bus.io-driver');
var bus = require('bus.io')();
bus.on(function (msg, next) {
  msg.content(msg.content().toUpperCase());
});
driver(bus)
  .on(Message().content('hi'))
  .done(function (err, msg) {
    if (err) throw err;
    assert.equal(msg.content(), 'HI');
  });

Examples

Say you want to test this bus.io app.

var bus = require('bus.io')();

bus.in('shout', function (msg, sock) {
  msg.target('everyone').deliver();
});

bus.on('shout', function (msg) {
  msg.content(msg.content().toUpperCase()).deliver();
});

bus.out('shout', function (msg) {
  msg.content(msg.content() + '!!!').deliver();
});

You would do it like this with driver.

var driver = require('bus.io-driver');
var assert = require('assert');
var Message = require('bus.io-common').Message;
var bus = require('./my-bus.io-app.js');

// test the "shout" message handler when going from the socekt to the bus

driver(bus)
  .on(Message().action('shout').content('hi'))
  .done(function (err, mesage) { 
    if (err) throw err;
    assert.equal(msg.target(), 'everyone');
  });

// test the "shout" message handler when processing on the bus

driver(bus)
  .on(Message().action('shout').content('hi'))
  .done(function (err, ms) {
    if (err) throw err;
    assert.equal(msg.content(), 'HI');
  });

// test the "shout" message handler when going from the bus to the socket

driver(bus)
  .on(Message().action('shout').content('HI'))
  .done(function (err, msg) {
    if (err) throw err;
    assert.equal(msg.content(), 'HI!!!');
  });

Test the whole trip.

var msg = Message().action('shout').content('hi');

driver(bus)
  .in(msg).on(msg).out(msg)
  .done(function (err, msg) {
    if (err) throw err;
    assert.equal(msg.target(), 'everyone');
    assert.equal(message.content(), 'HI!!!');
  });

Installation and Environment Setup

Install node.js (See download and install instructions here: http://nodejs.org/).

Clone this repository

> git clone git@github.com:turbonetix/bus.io-driver.git

cd into the directory and install the dependencies

> cd bus.io-driver
> npm install && npm shrinkwrap --dev

API

Driver

Driver#(bus:Bus)

var driver = require('bus.io-driver');
var bus = require('./bus.js');

var instance = driver(bus);

Driver#(bus:Bus, sock:EventEmitter)

var events = require('events');
var sock = new events.EventEmitter;
var driver = require('bus.io-driver');
var bus = require('./bus.js');
var instance = driver(bus, sock);

Driver#in(msg:Message)

Pipes the message through the in() receiver stack of middleware.

driver(bus).in(Message().action('shout'));

Driver#on(msg:Message)

Pipes the message through the on() receiver stack of middleware.

driver(bus).on(Message().action('shout'));

Driver#out(msg:Message)

Pipes the message through the out() receiver stack of middleware.

driver(bus).out(Message().action('shout'));

Driver#done(cb:Function)

driver.done(function (err, msg) {
  if (err) throw nerr;
  assert.equal(msg.content(), 'HI!!!');
});

Running Tests

Install coffee-script

> npm install coffee-script -g

Tests are run using grunt. You must first globally install the grunt-cli with npm.

> sudo npm install -g grunt-cli

Unit Tests

To run the tests, just run grunt

> grunt spec

Examples

Examples are under the examples/ directory.

TODO