fix: rename set_current_user to assign_current_user (RuboCop compliance)

Author: Pepan

.rubocop.yml

@@ -1,8 +1,30 @@
 AllCops:
   TargetRubyVersion: 3.1
+  NewCops: enable
+  SuggestExtensions: false
+
+plugins:
+  - rubocop-minitest
+
+Layout/LineLength:
+  Max: 200
 
 Style/StringLiterals:
   EnforcedStyle: double_quotes
 
 Style/StringLiteralsInInterpolation:
   EnforcedStyle: double_quotes
+
+# Relax some metrics for reasonable code
+Metrics/ClassLength:
+  Max: 150
+
+Metrics/MethodLength:
+  Max: 30
+
+Metrics/AbcSize:
+  Max: 35
+
+# Allow development dependencies in gemspec for gems
+Gemspec/DevelopmentDependencies:
+  Enabled: false

lib/fast_mcp_jwt_auth/rack_transport_patch.rb

@@ -71,7 +71,7 @@ def authenticate_user_with_token(jwt_token)
         return unless token_valid?(decoded_token)
 
         user = find_user_from_token(decoded_token)
-        set_current_user(user) if user
+        assign_current_user(user) if user
       end
 
       def token_valid?(decoded_token)
@@ -88,7 +88,7 @@ def find_user_from_token(decoded_token)
         user
       end
 
-      def set_current_user(user)
+      def assign_current_user(user)
         FastMcpJwtAuth.config.current_user_setter&.call(user)
       end
 

test/rack_transport_patch_test.rb

@@ -17,11 +17,13 @@ def teardown
 
   def test_patch_is_applied
     create_configured_transport
+
     assert_predicate FastMcpJwtAuth::RackTransportPatch, :patch_applied?
   end
 
   def test_transport_has_patched_methods
     transport = create_configured_transport
+
     assert_respond_to transport, :handle_mcp_request
   end
 
@@ -51,6 +53,7 @@ def test_jwt_authentication_disabled_ignores_header
     # When disabled, patch is not applied at all
     FastMcpJwtAuth.configure { |c| c.enabled = false }
     FastMcpJwtAuth::RackTransportPatch.apply_patch!
+
     refute_predicate FastMcpJwtAuth::RackTransportPatch, :patch_applied?
   end