diff --git a/test/rubygems/test_gem_commands_setup_command.rb b/test/rubygems/test_gem_commands_setup_command.rb
index f7d738a816..7d33c0c6d7 100644
--- a/test/rubygems/test_gem_commands_setup_command.rb
+++ b/test/rubygems/test_gem_commands_setup_command.rb
@@ -254,15 +254,8 @@ class TestGemCommandsSetupCommand < Gem::TestCase
     # expect to remove normal gem that was same version. because it's promoted default gems.
     refute_path_exists File.join(Gem.default_dir, "specifications", "bundler-#{BUNDLER_VERS}.gemspec")
 
-    # expect to install default gems. It location was `site_ruby` directory on real world.
     assert_path_exists "default/gems/bundler-#{BUNDLER_VERS}"
-
-    # expect to not remove other versions of bundler on `site_ruby`
     assert_path_exists 'default/gems/bundler-1.15.4'
-
-    # TODO: We need to assert to remove same version of bundler on gem_dir directory(It's not site_ruby dir)
-
-    # expect to not remove bundler-* directory.
     assert_path_exists 'default/gems/bundler-audit-1.0.0'
   end