Fix tests

test/application_system_test_case.rb

@@ -7,10 +7,29 @@ class ApplicationSystemTestCase < ActionDispatch::SystemTestCase
                        options: { browser: :remote,
                                   url: ENV.fetch("SELENIUM_REMOTE_URL", nil) })
 
-  def setup
+  setup do
     Capybara.server_host = "0.0.0.0" # bind to all interfaces
     Capybara.app_host = "http://#{IPSocket.getaddress(Socket.gethostname)}" if ENV["SELENIUM_REMOTE_URL"].present?
+  end
 
-    super
+  def app_host
+    "http://#{IPSocket.getaddress(Socket.gethostname)}"
+  end
+
+  def login(email, password)
+    visit "/login"
+    fill_in "Login", with: email
+    fill_in "Password", with: password
+    click_button "Login"
+  end
+
+  def logout
+    visit "/logout"
+    click_on "Log out"
+  end
+
+  def login_test
+    Account.create(email: "test@example.com", password: "password")
+    login("test@example.com", "password")
   end
 end