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Diffstat (limited to 'actionpack/lib/action_dispatch/system_test_case.rb')
| -rw-r--r-- | actionpack/lib/action_dispatch/system_test_case.rb | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/actionpack/lib/action_dispatch/system_test_case.rb b/actionpack/lib/action_dispatch/system_test_case.rb new file mode 100644 index 0000000000..1bf47d2556 --- /dev/null +++ b/actionpack/lib/action_dispatch/system_test_case.rb @@ -0,0 +1,124 @@ +require "capybara/dsl" +require "action_controller" +require "action_dispatch/system_testing/driver" +require "action_dispatch/system_testing/server" +require "action_dispatch/system_testing/test_helpers/screenshot_helper" +require "action_dispatch/system_testing/test_helpers/setup_and_teardown" + +module ActionDispatch + # = System Testing + # + # System tests let you test applications in the browser. Because system + # tests use a real browser experience, you can test all of your JavaScript + # easily from your test suite. + # + # To create a system test in your application, extend your test class + # from <tt>ApplicationSystemTestCase</tt>. System tests use Capybara as a + # base and allow you to configure the settings through your + # <tt>application_system_test_case.rb</tt> file that is generated with a new + # application or scaffold. + # + # Here is an example system test: + # + # require 'application_system_test_case' + # + # class Users::CreateTest < ApplicationSystemTestCase + # test "adding a new user" do + # visit users_path + # click_on 'New User' + # + # fill_in 'Name', with: 'Arya' + # click_on 'Create User' + # + # assert_text 'Arya' + # end + # end + # + # When generating an application or scaffold, an +application_system_test_case.rb+ + # file will also be generated containing the base class for system testing. + # This is where you can change the driver, add Capybara settings, and other + # configuration for your system tests. + # + # require "test_helper" + # + # class ApplicationSystemTestCase < ActionDispatch::SystemTestCase + # driven_by :selenium, using: :chrome, screen_size: [1400, 1400] + # end + # + # By default, <tt>ActionDispatch::SystemTestCase</tt> is driven by the + # Selenium driver, with the Chrome browser, and a browser size of 1400x1400. + # + # Changing the driver configuration options are easy. Let's say you want to use + # the Firefox browser instead of Chrome. In your +application_system_test_case.rb+ + # file add the following: + # + # require "test_helper" + # + # class ApplicationSystemTestCase < ActionDispatch::SystemTestCase + # driven_by :selenium, using: :firefox + # end + # + # +driven_by+ has a required argument for the driver name. The keyword + # arguments are +:using+ for the browser and +:screen_size+ to change the + # size of the browser screen. These two options are not applicable for + # headless drivers and will be silently ignored if passed. + # + # To use a headless driver, like Poltergeist, update your Gemfile to use + # Poltergeist instead of Selenium and then declare the driver name in the + # +application_system_test_case.rb+ file. In this case you would leave out the +:using+ + # option because the driver is headless. + # + # require "test_helper" + # require "capybara/poltergeist" + # + # class ApplicationSystemTestCase < ActionDispatch::SystemTestCase + # driven_by :poltergeist + # end + # + # Because <tt>ActionDispatch::SystemTestCase</tt> is a shim between Capybara + # and Rails, any driver that is supported by Capybara is supported by system + # tests as long as you include the required gems and files. + class SystemTestCase < IntegrationTest + include Capybara::DSL + include SystemTesting::TestHelpers::SetupAndTeardown + include SystemTesting::TestHelpers::ScreenshotHelper + + def initialize(*) # :nodoc: + super + self.class.superclass.driver.use + end + + def self.start_application # :nodoc: + Capybara.app = Rack::Builder.new do + map "/" do + run Rails.application + end + end + + SystemTesting::Server.new.run + end + + # System Test configuration options + # + # The default settings are Selenium, using Chrome, with a screen size + # of 1400x1400. + # + # Examples: + # + # driven_by :poltergeist + # + # driven_by :selenium, using: :firefox + # + # driven_by :selenium, screen_size: [800, 800] + def self.driven_by(driver, using: :chrome, screen_size: [1400, 1400]) + @driver = SystemTesting::Driver.new(driver, using: using, screen_size: screen_size) + end + + # Returns the driver object for the initialized system test + def self.driver + @driver ||= SystemTestCase.driven_by(:selenium) + end + end + + SystemTestCase.start_application +end |