# These are helper methods for running rspec tests that give english names to mathematical operators
module MathOperatorHelpers
  def less_than?(other)
    self < other
  end
  
  def less_than_or_equal_to?(other)
    self <= other
  end
  
  def greater_than?(other)
    self > other
  end
  
  def greater_than_or_equal_to?(other)
    self >= other
  end
  
  def between?(first, second)
    first <= self && self <= second
  end
  
  alias_method :before?, :less_than?
  alias_method :before_or_on?, :less_than_or_equal_to?
  alias_method :after?, :greater_than?
  alias_method :after_or_on?, :greater_than_or_equal_to?
end

%w(Integer Float Date DateTime Time).each do |class_name|
  eval <<-EOS
    class #{class_name}
      include MathOperatorHelpers
    end
  EOS
end