More functional tests from ZODB: test persistent class invalidation, and changing the _p_oid and _p_jar when not in a jar's cache.

Detect the bitness of the current process in order to better match the C TimeStamp hashcode. Fixes zopefoundation/persistent#21

Detect the bitness of the current process in order to better match the C TimeStamp hashcode. Fixes zopefoundation/persistent#21

More on C and ZODB compatibility for Python PickleCache and Persistent. There are some interconnected lifetime issues that this solves for ZODB's cache tests, and what appear to be some genuine bugs in invalidation.

Match the C implementation for the way in which _p_jar and _p_oid can be changed. ZODB depends on this.

Support shrinking the Python PickleCache based on a target byte count, and clear out references to ejected objects when done. This makes the ZODB testConnection and testConnectionSavepoint tests pass but is not tested here.

The Python version of PickleCache.minimize does what the C version does and ghosts the evicted objects.

The Python PickleCache is close enough to the C PickleCache that ZODB's testCache passes. Required some small updates and additions to our own test cases; the update_object_size_estimation is not tested here yet.

In the case of a ZODB broken object, the Python persistent implementation needs to bypass the _setattr_ implementation when working with its own internal state variables. This much gets the ZODB broken tests to pass. Need to figure out how to test this locally.

More on C and ZODB compatibility for Python PickleCache and Persistent. There are some interconnected lifetime issues that this solves for ZODB's cache tests, and what appear to be some genuine bugs in invalidation.

Match the C implementation for the way in which _p_jar and _p_oid can be changed. ZODB depends on this.

Support shrinking the Python PickleCache based on a target byte count, and clear out references to ejected objects when done. This makes the ZODB testConnection and testConnectionSavepoint tests pass but is not tested here.

TypeError: TestCases and TestSuites must be instantiated before passing them to addTest()

Make the .raw() and repr() of the Python TimeStamp match the C version in more cases.