ValidAttribute macros

address.rb

require 'active_attr'

class Address
  include ActiveAttr::Model

  attribute :city
  attribute :country

  validates :city, presence: true
  validates :city, inclusion: { in: ["Vatican"] }, if: lambda { |address| address.country == 'Vatican' }
end

address_spec.rb

require 'spec_helper'

describe Address do
  should_have_valid     :city, when: ['NYC']
  should_not_have_valid :city, when: [nil, '']

  context 'Vatican' do
    subject { Address.new country: 'Vatican' }

    should_have_valid     :city, when: ['Vatican']
    should_not_have_valid :city, when: ['NYC']
  end
end

spec_helper.rb

require './lib/address'
require 'valid_attribute'

module HaveValidMacros
  def should_have_valid(attribute, options)
    it { should have_valid(attribute).when(*options[:when]) }
  end

  def should_not_have_valid(attribute, options)
    it { should_not have_valid(attribute).when(*options[:when]) }
  end
end

RSpec.configure do |config|
  config.extend HaveValidMacros
end