Tests failure

[seblu]

Hello,

I used to run py.test test during the packaging of this package on Archlinux. Since last version (0.4.2), tests fail with 2 overflows. Is that something expected? Could we expect a runnable test suite in futher versions?

============================= test session starts ==============================
platform linux -- Python 3.4.0 -- py-1.4.20 -- pytest-2.5.2
collected 81 items

test/test_buffer.py ..
test/test_case.py .............
test/test_except.py ...
test/test_extension.py ...
test/test_format.py ..........
test/test_limits.py .FF
test/test_newspec.py .....
test/test_obj.py ........
test/test_pack.py ................
test/test_read_size.py ......
test/test_seq.py .
test/test_sequnpack.py .....
test/test_subtype.py .
test/test_unpack.py ...
test/test_unpack_raw.py ..

=================================== FAILURES ===================================
______________________________ test_array_header _______________________________

    def test_array_header():
        packer = Packer()
        packer.pack_array_header(2**32-1)
        with pytest.raises(ValueError):
>           packer.pack_array_header(2**32)

test/test_limits.py:25:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

>   ???
E   OverflowError: Python int too large to convert to C unsigned long

_packer.pyx:240: OverflowError
_______________________________ test_map_header ________________________________

    def test_map_header():
        packer = Packer()
        packer.pack_map_header(2**32-1)
        with pytest.raises(ValueError):
>           packer.pack_array_header(2**32)

test/test_limits.py:32:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

>   ???
E   OverflowError: Python int too large to convert to C unsigned long

_packer.pyx:240: OverflowError
===================== 2 failed, 79 passed in 0.36 seconds ======================
==> ERROR: A failure occurred in check().
    Aborting...

==> ERROR: Build failed, check /var/lib/archbuild/extra-i686/seblu/build

[methane]

fixed via 7d0e145