Uninitialized constant CashSlot (NameError)

Ruby
1

Hi all,

I am trying an exercise from ‘The Cucumber Book’ - it’s the Cash
withdrawal one with the basic web page hook up.

I have a file C:\Ruby2\features\support\world_extentions with:

require ‘sinatra’

class UserInterface
include Capybara::DSL

def withdraw_from(account, amount)
Sinatra::Application.account = account
visit ‘/’
fill_in ‘Amount’, :with => amount
click_button ‘Withdraw’
end
end

CAPTURE_CASH_AMOUNT = Transform /^$(\d+)$/ do |digits|
digits.to_i
end
class CashSlot
Sinatra::Application.cash_slot
def initialize(cash_slot)
@cash_slot = cash_slot
end
def contents
@contents or raise(“I’m empty!”)
end
def dispense(amount)
@contents = amount
end
end

class Account
def deposit(amount)
@balance = amount
end
def balance
@balance
end
def debit(amount)
@balance -= amount
end
def credit(amount)
@balance =+ amount
end
end

class Teller
def withdraw_from(account, amount)
account.debit(amount)
@cash_slot.dispense(amount)
end
def make_a_deposit(account, amount)
account.credit(amount)
end
end

module KnowsTheUserInterface
class UserInterface
def withdraw_from(account, amount)
end
end
def my_account
@my_account ||= Account.new
end
def cash_slot
Sinatra::Application.cash_slot
end
def teller
@teller ||= UserInterface.new
end
end
World(KnowsTheUserInterface)

And then C:\Ruby2\lib\nice_bank with

encoding: utf-8

require ‘sinatra’

get ‘/’ do
‘Welcome to our Jons bank.’
end
cash_slot = CashSlot.new
#set :cash_slot, CashSlot.new

set :account do
fail ‘account has not been set’
end

post ‘/withdraw’ do
teller = Teller.new(settings.cash_slot)
teller.withdraw_from(settings.account, params[:amount].to_i)
end

get ‘/’ do
%{

Amount Withdraw } end

set :account do
fail ‘account has not been set’
end

and when I run: bundle exec cucumber features\cashwithdrawal.feature -r
features

I get error:
uninitialized constant CashSlot (NameError)
C:/Ruby2/lib/nice_bank.rb:7:in <top (required)>' C:/Ruby2/features/support/env.rb:1:inrequire’
C:/Ruby2/features/support/env.rb:1:in <top (required)>' C:/Ruby2/lib/ruby/gems/2.0.0/gems/cucumber-2.3.2/lib/cucumber/rb_support/rb_language.rb:96:inload’
C:/Ruby2/lib/ruby/gems/2.0.0/gems/cucumber-2.3.2/lib/cucumber/rb_support/rb_language.rb:96:in
`load_code_file’
etc…

I have spent hours looking up forums etc and can’t figure what is wrong

  • can anyone help please.

Many thanks