A Capybara helper to fill in WYSIHTML5 editors. Works with multiple editors on a page.

fill_in_wysihtml5.rb

module FillInWysihtml5
  def fill_in_wysihtml5(label, opts={})
    page.execute_script <<-JAVASCRIPT
      var id = $("label:contains(#{label})").attr("for");
      $("#" + id).data("wysihtml5").editor.setValue("#{opts[:with]}");
    JAVASCRIPT
  end
end