Installed authentication-zero

test/application_system_test_case.rb

@@ -1,5 +1,15 @@
 require "test_helper"
 
 class ApplicationSystemTestCase < ActionDispatch::SystemTestCase
-  driven_by :selenium, using: :headless_chrome, screen_size: [ 1400, 1400 ]
+  driven_by :selenium, using: :headless_chrome, screen_size: [1400, 1400]
+
+  def sign_in_as(user)
+    visit sign_in_url
+    fill_in :email, with: user.email
+    fill_in :password, with: "Secret1*3*5*"
+    click_on "Sign in"
+
+    assert_current_path root_url
+    user
+  end
 end