Rspec and should have_many through

Hi,
Anyone can help me with rspec shoulda validations please.
I can’t get the syntax right for these validations. Please correct me

it { should have_one :tradable, :through => :trade_order}
it { should belong_to :source,   :polymorphic => true }
it { should have_many :transfers, :as => :source }

this is for Rspec 2, rails 3.1,

gem “rspec-rails”
gem “remarkable_activerecord”, “~> 4.0.0.alpha4”
gem ‘rspec-rails-ext’
gem ‘rspec-rails-matchers’
gem “shoulda-matchers”

On Tue, Sep 13, 2011 at 8:53 PM, slavix [email protected] wrote:

gem “rspec-rails”

I believe remarkable_activerecord and shoulda-matchers have conflicting
API’s? Also, looks like you need to use methods, rather than symbols as
arguments:

it { should have_one(:tradable).through(:trade_order) }