用于solr搜索的rspec：less_than / greater_than场景

Question

我正在为solr搜索编写控制器规范。 这是我的控制器

 @search = Plan.available_plans.search do
  fulltext params[:zip_code] do
  end

  all_of do
    with :status, "active"
    with(:price).greater_than(10)
    with(:end_date).greater_than Time.now
  end

规范是：

it "should list active plans" do  
 get :index
  Sunspot.session.should be_a_search_for(Plan)
  Sunspot.session.should_not have_search_params(:with, :status, "inactive")
end

it "should not list plans with price < 10" do
  get :index
  Sunspot.session.should be_a_search_for(Plan)
  Sunspot.session.should_not have_search_params(:with, :price, :less_than => 10)
end


it "should not list plans that have expired" do
  get :index
  Sunspot.session.should be_a_search_for(Plan)
  Sunspot.session.should_not have_search_params(:with, :end_date, :less_than => Date.today)
end

第一个工作正常。我搜索了很多但是找不到合适的语法来测试其他场景。 Plz帮助我。