1 files changed, 32 insertions, 3 deletions
diff --git a/actionpack/test/system_testing/capybara_driver_test.rb b/actionpack/test/system_testing/capybara_driver_test.rb
index b409fdfab0..a6be63ba7f 100644
--- a/actionpack/test/system_testing/capybara_driver_test.rb
+++ b/actionpack/test/system_testing/capybara_driver_test.rb
@@ -1,10 +1,39 @@
 require 'abstract_unit'
 
 class CapybaraDriverTest < ActiveSupport::TestCase
-  def test_setting_useragent
+  def setup
+    Rails::SystemTestCase.driver = :poltergeist
+  end
+
+  def test_default_driver_adapter
+    assert_kind_of SystemTesting::DriverAdapters::CapybaraDriver, Rails::SystemTestCase.driver
+  end
+
+  def test_default_settings
+    assert_equal :poltergeist, Rails::SystemTestCase.driver.name
+    assert_equal :puma, Rails::SystemTestCase.driver.server
+    assert_equal 28100, Rails::SystemTestCase.driver.port
+  end
+
+  def test_setting_driver
+    Rails::SystemTestCase.driver = :webkit
+
+    assert_equal :webkit, Rails::SystemTestCase.driver.name
+  end
+
+  def test_setting_server
     Rails::SystemTestCase.driver = SystemTesting::DriverAdapters::CapybaraDriver.new(
-      :rack_test
+      server: :webrick
     )
-    assert_equal :rack_test, Rails::SystemTestCase.driver.name
+
+    assert_equal :webrick, Rails::SystemTestCase.driver.server
+  end
+
+  def test_setting_port
+    Rails::SystemTestCase.driver = SystemTesting::DriverAdapters::CapybaraDriver.new(
+      port: 3000
+    )
+
+    assert_equal 3000, Rails::SystemTestCase.driver.port
   end
 end