1 files changed, 16 insertions, 0 deletions

diff --git a/spec/ruby/shared/file/writable.rb b/spec/ruby/shared/file/writable.rb
index 4bb8aedce6..65ea2c1781 100644
--- a/spec/ruby/shared/file/writable.rb
+++ b/spec/ruby/shared/file/writable.rb
@@ -19,6 +19,22 @@ describe :file_writable, shared: true do
   it "accepts an object that has a #to_path method" do
     File.open(@file,'w') { @object.send(@method, mock_to_path(@file)).should == true }
   end
+
+  platform_is_not :windows do
+    as_superuser do
+      context "when run by a superuser" do
+        it "returns true unconditionally" do
+          file = tmp('temp.txt')
+          touch file
+
+          File.chmod(0555, file)
+          @object.send(@method, file).should == true
+
+          rm_r file
+        end
+      end
+    end
+  end
 end
 
 describe :file_writable_missing, shared: true do