Test suites for the implementation of Python?


I have implemented a subset of Python, and I need to find some test suites that are used to testing the implementation of Python (yeah, the language itself), something like the test suites used by SpiderMonkey to test the implementation of Javascript, so I am expecting some authoritative, or open sourced that are widely (or actually) used ones....

If you download the CPython source from http://hg.python.org/cpython/, you'll find a massive suite of tests in Lib/tests. These might be of some use.