Fix a false positive for Layout/DefEndAlignment

CHANGELOG.md

@@ -6,6 +6,7 @@
 
 * [#8627](https://github.com/rubocop-hq/rubocop/issues/8627): Fix a false positive for `Lint/DuplicateRequire` when same feature argument but different require method. ([@koic][])
 * [#8572](https://github.com/rubocop-hq/rubocop/issues/8572): Fix a false positive for `Style/RedundantParentheses` when parentheses are used like method argument parentheses. ([@koic][])
+* [#8653](https://github.com/rubocop-hq/rubocop/pull/8653): Fix a false positive for `Layout/DefEndAlignment` when using refinements and `private def`. ([@koic][])
 
 ### Changes
 

lib/rubocop/cop/layout/def_end_alignment.rb

@@ -46,7 +46,7 @@ def on_def(node)
         alias on_defs on_def
 
         def on_send(node)
-          return unless node.def_modifier?
+          return if !node.def_modifier? || node.method?(:using)
 
           method_def = node.each_descendant(:def, :defs).first
           expr = node.source_range

spec/rubocop/cop/layout/def_end_alignment_spec.rb

@@ -66,6 +66,21 @@ def Test.test
         RUBY
       end
     end
+
+    context 'when using refinements and `private def`' do
+      it 'does not register an offense' do
+        expect_no_offenses(<<~RUBY)
+          using Module.new {
+            refine Hash do
+              class << Hash
+                private def _ruby2_keywords_hash(*args)
+                end
+              end
+            end
+          }
+        RUBY
+      end
+    end
   end
 
   context 'when EnforcedStyleAlignWith is def' do