1 files changed, 9 insertions, 0 deletions
diff --git a/spec/ruby/core/kernel/shared/require.rb b/spec/ruby/core/kernel/shared/require.rb
index b502476bc3..56377684fb 100644
--- a/spec/ruby/core/kernel/shared/require.rb
+++ b/spec/ruby/core/kernel/shared/require.rb
@@ -553,6 +553,15 @@ describe :kernel_require, shared: true do
         required = ruby_exe(code, options: '--disable-gems')
         required.should == "false\n" * provided.size
       end
+
+      it "unicode_normalize is part of core and not $LOADED_FEATURES" do
+        features = ruby_exe("puts $LOADED_FEATURES", options: '--disable-gems')
+        features.lines.each { |feature|
+          feature.should_not include("unicode_normalize")
+        }
+
+        -> { @object.require("unicode_normalize") }.should raise_error(LoadError)
+      end
     end
   end