Add configuration option for driver adapter

This allows any application to change the driver adapter based on the
config settings in the test env.

1 files changed, 14 insertions, 0 deletions

diff --git a/actionpack/lib/system_testing/railtie.rb b/actionpack/lib/system_testing/railtie.rb
new file mode 100644
index 0000000000..aa3df29344
--- /dev/null
+++ b/actionpack/lib/system_testing/railtie.rb
@@ -0,0 +1,14 @@
+module SystemTesting
+  class Railtie < Rails::Railtie
+    config.system_testing = ActiveSupport::OrderedOptions.new
+
+    initializer "system_testing.set_configs" do |app|
+      options = app.config.system_testing
+      options.driver_adapter ||= :capybara_rack_test_driver
+
+      ActiveSupport.on_load(:system_testing) do
+        options.each { |k,v| send("#{k}=", v) }
+      end
+    end
+  end
+end