这是由attr_accessible引起的吗？

attr_accessible

context \"when user buys a game item\" do
  let(:inventory) {@user.inventory << Factory(:inventory)}

  it \"should present an error if the id ...\" do
    GameItem.stub(:find_by_id).and_return(Factory(:game_item))
    @user.inventory.should == 1  # TEST
    post :buy, :id => (game_item.id + 1)
    flash[:error].should == I18n.t(\'error.invalid_post\')
    response.should redirect_to melee_url(\'Weapon\')
  end
end

@user.inventory.should == 1

<<

let

inventory

@user.inventory

let

it