module ActiveSupport::Testing::Declarative

def self.describe(text)
  class_eval <<-RUBY_EVAL, __FILE__, __LINE__ + 1
    def self.name
      "#{text}"
    end
  RUBY_EVAL
end

def self.extended(klass)
  klass.class_eval do
    unless method_defined?(:describe)
      def self.describe(text)
        class_eval <<-RUBY_EVAL, __FILE__, __LINE__ + 1
          def self.name
            "#{text}"
          end
        RUBY_EVAL
      end
    end
  end
end

def test(name, &block)
  test_name = "test_#{name.gsub(/\s+/,'_')}".to_sym
  defined = instance_method(test_name) rescue false
  raise "#{test_name} is already defined in #{self}" if defined
  if block_given?
    define_method(test_name, &block)
  else
    define_method(test_name) do
      flunk "No implementation provided for #{name}"
    end
  end
end