class Capybara::Driver::Base def current_url raise NotImplementedError end def visit(path) raise NotImplementedError end def find(query) raise NotImplementedError end def source raise NotImplementedError end def body raise NotImplementedError end def execute_script(script) raise Capybara::NotSupportedByDriverError end def evaluate_script(script) raise Capybara::NotSupportedByDriverError end def save_screenshot(path, options={}) raise Capybara::NotSupportedByDriverError end def response_headers raise Capybara::NotSupportedByDriverError end def status_code raise Capybara::NotSupportedByDriverError end def within_frame(frame_id) raise Capybara::NotSupportedByDriverError end def within_window(handle) raise Capybara::NotSupportedByDriverError end def invalid_element_errors [] end def wait? false end def reset! end end