lib/capybara/spec/session/evaluate_script_spec.rb
# frozen_string_literal: true Capybara::SpecHelper.spec "#evaluate_script", requires: [:js] do it "should evaluate the given script and return whatever it produces" do @session.visit('/with_js') expect(@session.evaluate_script("1+3")).to eq(4) end it "should pass arguments to the script", requires: %i[js es_args] do @session.visit('/with_js') @session.evaluate_script("document.getElementById('change').textContent = arguments[0]", "Doodle Funk") expect(@session).to have_css('#change', text: 'Doodle Funk') end it "should support passing elements as arguments to the script", requires: %i[js es_args] do @session.visit('/with_js') el = @session.find(:css, '#change') @session.evaluate_script("arguments[0].textContent = arguments[1]", el, "Doodle Funk") expect(@session).to have_css('#change', text: 'Doodle Funk') end it "should support returning elements", requires: %i[js es_args] do @session.visit('/with_js') @session.find(:css, '#change') # ensure page has loaded and element is available el = @session.evaluate_script("document.getElementById('change')") expect(el).to be_instance_of(Capybara::Node::Element) expect(el).to eq(@session.find(:css, '#change')) end end