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describe 'ShoppingCart'
  var cart

  before_each
    cart = new ShoppingCart
  end
  
  describe 'addProducts'
    it 'should add several products'
      cart.addProduct('cookie')
      cart.addProduct('icecream')
      cart.should.have 2, 'products'
    end
  end

  describe 'checkout'
    it 'throw an error when checking out with no products'
      -{ cart.clear().checkout() }.should.throw_error
    end
  end
end