a counterexample to an rspec example

gistfile1.rb

class OrderTest < Test::Unit::TestCase
  setup do
    @order = Order.new
    @order.customer.confirmed = confirmed
    @order.save!
  end

  test "when customer is confirmed, it should be delivered" do
    @order.confirmed = true
    assert @order.confirmed.delivered
  end

  test when customer is not confirmed, it should not be delivered" do
    @order.confirmed = false
    assert_false @order.confirmed.delivered.should
  end
end