Topic: testing fabricators with rspec

I have done this in all my models but this one is giving me a error.

require 'spec_helper'

describe Contact do
  it "has a valid factory" do
    Fabricate.build(:contact).should be_valid
  end
end

this one is working just fine

require 'spec_helper'

describe Account do
  it "has a valid factory" do
    Fabricate.build(:account).should be_valid
  end
end

Re: testing fabricators with rspec

What's the error text?