module RSpectacular
  module ActiveRecord
    module Matchers
      class TruthfulnessMatcher < Shoulda::ActiveRecord::Matchers::ValidationMatcher
        def matches?(truthable)
          super(truthable)

          allows_true &&
          allows_false &&
          disallows_nil
        end

        def allows_true
          allows_value_of(true)
        end

        def allows_false
          allows_value_of(false)
        end

        def disallows_nil
          disallows_value_of(nil)
        end

        def description
          "should accept only boolean true or false values"
        end
      end

      def validate_truthfulness_of(truthteller)
        TruthfulnessMatcher.new(truthteller)
      end
    end
  end
end