intertwingly

Here is a simple set of tests for verifying that an aggregator properly handles various combinations of international characters and character references.  The desired result is that the title of every entry should be displayed as Iñtërnâtiônàlizætiøn.

This is not meant to be comprehensive, in particular, it focuses only on one encoding (utf-8, which is guaranteed to be supported by any conformant XML parser), and doesn't do mode base64.