describe Post do
   it { should validate_uniqueness_of :title }
   it { should validate_presence_of :body, :message => /wtf/ }
   it { should validate_presence_of :title }
   it { should validate_numericality_of :user_id }
end

describe User do
   it { should not_allow_values_for :email, "blah", "b lah" }
   it { should allow_values_for :email, "a@b.com", "asdf@asdf.com" }
   it { should ensure_length_in_range :email, 1..100 }
   it { should ensure_value_in_range :age, 1..100 }
   it { should not_allow_mass_assignment_of :password }
 end