Response to http://stackoverflow.com/questions/29320055/rspec-test-to-check-input-is-within-range-1-4-works-once-then-fails/29320707#comment46833132_29320707

order_spec.rb

require_relative '../order.rb'

describe Order do
  def new_order(input)
    order = Order.new
    allow(order).to receive(:input).and_return(input)
    order
  end

  it 'gets dish number as input' do
    expect(new_order("1").dish_number).to eq(1)
  end

  it 'checks valid dish' do
    expect(new_order("1")).to be_valid_dish
  end 
end