forwarder/spec/ForwarderInClass_spec.coffee

Forwarding of messages to different objects (mostly properties of the receiver)

{ expect } = require "chai"
{ forward } = require "../src/forwarder"
_ = require "underscore"

class F
  constructor: ->
    @name = "no name so far"
    forward @, 'split', to: "name"
    forward @, 'seperate', to: 'name', as: 'split'
    forward @, 'splitByOes', to: 'name', as: 'split', with: ['o']

describe "forwarder", ->
  obj = new F()

  it "forwards", ->
    expect( obj.split ' ' ).to.deep.equal ['no', 'name', 'so', 'far']

  it "forwards with translations", ->
    expect( obj.seperate ' ' ).to.deep.equal ['no', 'name', 'so', 'far']

  it "raises an error for unforwarded messages", ->
    expect( 
      -> obj.undefinedMethod()
    ).to.throw TypeError

  it "sets arguments", ->
    expect(
      obj.splitByOes()
    ).to.deep.equal ['n', ' name s', ' far']