Test sources should be named:

  t????-function.c

where ???? is a four digit code.  The first two digits classify
the test into a major category; the final two digits indicate the
sequence of the test within that category.  The function part of
the test name should give a rough indication of what it does.

Categories
----------

00__: Core library routines based only on the standard library,
      and that are essential for everything else to run.  E.g.
      errno and malloc.

01__: Basic hashing functions, needed to handle the content
      addressable store.

02__: Basic object read access.
