2014: Added tests provided in patch attached to issue

As offered, I have added at least the tests provided in the patch for the issue.
As the tests now pass without the changes made, I have not put work into porting them to master so far.
Tuples, lists, sets and frozensets are now all working to provide equations.

Regards
     Torsten

P.S.: Please give me feedback if I did something wrong with the pull request, as it is my first.