teamcapybara--capybara/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