1 files changed, 3 insertions, 2 deletions
diff --git a/activesupport/test/core_ext/kernel_test.rb b/activesupport/test/core_ext/kernel_test.rb
index e90b9d454f..99e4506be7 100644
--- a/activesupport/test/core_ext/kernel_test.rb
+++ b/activesupport/test/core_ext/kernel_test.rb
@@ -96,15 +96,16 @@ class KernelDebuggerTest < ActiveSupport::TestCase
   end
 
   def test_debugger_not_available_message_to_rails_logger
+    Object.send(:remove_const, :Rails) if Object.const_defined?(:Rails)
     rails = Class.new do
       def self.logger
         @logger ||= MockStdErr.new
       end
     end
-    Object.const_set("Rails", rails)
+    Object.const_set(:Rails, rails)
     debugger
     assert_match(/Debugger requested/, rails.logger.output.first)
   ensure
-    Object.send(:remove_const, "Rails")
+    Object.send(:remove_const, :Rails)
   end
 end