def data_compose(self, request):
pattern = request.param
flags = tuple(bool(int(bit)) for bit in pattern) if pattern else ()
result = Bits(''.join(reversed(pattern)), 2) if pattern else Bits()
return 0, flags, Bits(result)
def test_extract_duplicate_markers(self, method):
extract = getattr(Bits(42), method)
with raises(ValueError):
extract('11-21')
def test_extract_empty(self, method, res_type):
extract = getattr(Bits(42), method)
assert extract('') == res_type()
assert extract('---') == res_type()
assert extract('@') == res_type()
def test_mask_empty(self):
result = Bits(42).mask('')
assert result == Bits(42)
assert type(result) is Bits
def test_mask_invalid(self, mask):
with raises(TypeError):
Bits(42).mask(mask)
def data_mask_delim(self, request):
operand, mask, result = request.param.strip().split()
if '-' in mask:
mask = mask.replace('-', choice(self.delimiters))
return int(operand, 2), mask, Bits(result, 2)
def data_mask(self, request):
operand, mask, result = request.param.strip().split()
return int(operand, 2), mask, Bits(result, 2)
def test_clear_no_args(self):
result = Bits(42).clear()
assert result == Bits(42)
assert type(result) is Bits
