add controller tests

test/test_helper.rb

@@ -4,8 +4,8 @@ require "rails/test_help"
 
 module ActiveSupport
   class TestCase
-    # Run tests in parallel with specified workers
-    parallelize(workers: :number_of_processors)
+    # Run tests serially to avoid sqlite/FTS5 conflicts in test setup.
+    parallelize(workers: 1)
 
     # Setup all fixtures in test/fixtures/*.yml for all tests in alphabetical order.
     fixtures :all
@@ -13,3 +13,20 @@ module ActiveSupport
     # Add more helper methods to be used by all tests here...
   end
 end
+
+module ActionDispatch
+  class IntegrationTest
+    # Helper method to login as a user in integration tests
+    def login_as(user, password: "password123456")
+      post login_path, params: {
+        email: user.email,
+        password: password
+      }
+    end
+
+    # Helper method to logout
+    def logout
+      delete logout_path
+    end
+  end
+end