diff --git a/config/environments/test.rb b/config/environments/test.rb
index 0702df7..a7706f5 100644
--- a/config/environments/test.rb
+++ b/config/environments/test.rb
@@ -22,14 +22,15 @@ Rails.application.configure do
     "Cache-Control" => "public, max-age=#{1.hour.to_i}"
   }
 
-  # Show full error reports and disable caching.
-  config.consider_all_requests_local       = true
+  # Hide full error reports.
+  config.consider_all_requests_local     = false
+  # Render exception templates instead of raising exceptions.
+  config.action_dispatch.show_exceptions = true
+
+  # Disable caching.
   config.action_controller.perform_caching = false
   config.cache_store = :null_store
 
-  # Raise exceptions instead of rendering exception templates.
-  config.action_dispatch.show_exceptions = false
-
   # Disable request forgery protection in test environment.
   config.action_controller.allow_forgery_protection = false
 
diff --git a/test/application_system_test_case.rb b/test/application_system_test_case.rb
index 981223f..f3ac457 100644
--- a/test/application_system_test_case.rb
+++ b/test/application_system_test_case.rb
@@ -4,7 +4,7 @@ class ApplicationSystemTestCase < ActionDispatch::SystemTestCase
   # NOTE: remove when capabilities no longer used by Rails
   Selenium::WebDriver.logger.ignore(:capabilities)
 
-  driven_by :selenium, using: :headless_firefox, screen_size: [1600, 900]
+  driven_by :selenium, using: :headless_firefox, screen_size: [2400, 1600]
 
   def sign_in(user: users.select(&:confirmed?).sample, password: randomize_user_password!(user))
     visit new_user_session_url
diff --git a/test/system/users_test.rb b/test/system/users_test.rb
index 250691a..9510237 100644
--- a/test/system/users_test.rb
+++ b/test/system/users_test.rb
@@ -101,12 +101,11 @@ class UsersTest < ApplicationSystemTestCase
     end
   end
 
-  test "users index visible only for admin" do
+  test "users index forbidden for non admin" do
     sign_in user: users.reject(&:admin?).select(&:confirmed?).sample
-    assert_raise ApplicationController::AccessForbidden do
-      visit users_path
-    end
+    visit users_path
     assert has_no_link?t('layouts.application.users')
+    assert_title "Access is forbidden to this page (403)"
   end
 
   test "update e-mail" do