Enforce Rails-style (line-count-based) block style

test/action_controller/serialization_test.rb

@@ -400,25 +400,25 @@ module ActionController
       end
 
       def test_warn_overridding_use_adapter_as_falsy_on_controller_instance
-        controller = Class.new(ImplicitSerializationTestController) {
+        controller = Class.new(ImplicitSerializationTestController) do
           def use_adapter?
             false
           end
-        }.new
-        assert_match(/adapter: false/, (capture(:stderr) {
+        end.new
+        assert_match(/adapter: false/, (capture(:stderr) do
           controller.get_serializer(Profile.new)
-        }))
+        end))
       end
 
       def test_dont_warn_overridding_use_adapter_as_truthy_on_controller_instance
-        controller = Class.new(ImplicitSerializationTestController) {
+        controller = Class.new(ImplicitSerializationTestController) do
           def use_adapter?
             true
           end
-        }.new
-        assert_equal '', (capture(:stderr) {
+        end.new
+        assert_equal '', (capture(:stderr) do
           controller.get_serializer(Profile.new)
-        })
+        end)
       end
     end
   end

test/capture_warnings.rb

@@ -28,9 +28,9 @@ class CaptureWarnings
 
   # rubocop:disable Metrics/AbcSize
   def after_tests(lines)
-    app_warnings, other_warnings = lines.partition { |line|
+    app_warnings, other_warnings = lines.partition do |line|
       line.include?(app_root) && !line.include?(bundle_dir)
-    }
+    end
 
     header = "#{'-' * 22} app warnings: #{'-' * 22}"
     output.puts