gistfile1.txt

require 'test/unit'

module GetterSetter
  def getter_setter(attribute)
    instance_variable = "@#{instance_variable}"

    define_method("#{attribute}=") do |value|
      instance_variable_set(instance_variable,value)
    end

    define_method(attribute) do
      instance_variable_get(instance_variable)
    end
  end
end

class Thing
  extend GetterSetter

  getter_setter :foo
end


class GetterSetterTest < Test::Unit::TestCase

  def test_thing_should_have_foo_setter
    a = Thing.new
    assert_nothing_raised do
      a.foo = 42
    end
  end

  def test_thing_should_have_a_foo_getter
    a = Thing.new
    a.foo = 42
    
    assert a.foo == 42
  end
end