Test an object without a method

use_case.rb

  
  # https://github.com/rogercampos/armot/blob/master/test/armot_test.rb#L514
  test "should work if the I18n backend has not fallbacks" do
    with_no_method(I18n.singleton_class, :fallbacks) do
      assert_equal false, I18n.respond_to?(:fallbacks)

      post = Post.last
      I18n.locale = :pt
      assert_equal nil, post.title
    end
  end

with_no_method.rb

def with_no_method(target, name)
  target.send(:alias_method, :method_backup, name)
  target.send(:remove_method, name)
  yield

ensure
  target.send(:alias_method, name, :method_backup)
end

nice!

Thanks! Was playing a bit with how to do this and it's the best I could get. Do you have any advice?