output.txt

The first context
Creating Person with name Nick

✗ Errored » callback not fired 
      in Create a Person via JavaScript: When a person has a name, 
      in Creating a Person 
      in undefined✗ Errored » 1 errored ∙ 1 dropped

person.coffee

vows_bdd  = require "vows-bdd"
assert    = require "assert"


class Person
  constructor: (@name) ->
    console.log "Creating Person with name #{@name}"

  greeting: ->
    "Hello, #{@name}"


vows_bdd
  .Feature("Creating a Person")
    .scenario("Create a Person via JavaScript")

    .when "a person has a name", ->
      console.log "The first context"
      @callback(new Person "Nick")

    .then "the person can be greeted", (person) ->
      console.log "person is a #{typeof person} = [#{person}]"
      assert.equal person.greeting(), "Hello, Nick"

    .complete()
    .finish(module)