def test_crc32_only_takes_one_arg_no_kwargs(self):
with pytest.raises(TypeError):
CRC32('d', 'c')
with pytest.raises(TypeError):
CRC32('d', something='wrong')
def test_crc32_only_takes_one_arg_no_kwargs(self):
with pytest.raises(TypeError):
CRC32("d", "c")
with pytest.raises(TypeError):
CRC32("d", something="wrong")
def test_crc32(self):
Alphabet.objects.create(d='AAAAAA')
ab = Alphabet.objects.annotate(crc=CRC32('d')).first()
# Precalculated this in MySQL prompt. Python's binascii.crc32 doesn't
# match - maybe sign issues?
assert ab.crc == 2854018686
def test_single_arg_doesnt_work(self):
with pytest.raises(ValueError):
CRC32('name')