def test_parsing(self):
length_bytes = [0x01]
length = Length.parse(ConstBitStream(bytes=length_bytes))
self.assertEqual(length.value, 1)
length_bytes = [0x40, 0x41]
length = Length.parse(ConstBitStream(bytes=length_bytes))
self.assertEqual(length.value, 65)
length_bytes = [0xC0, 0x41, 0x10, 0x00]
length = Length.parse(ConstBitStream(bytes=length_bytes))
self.assertEqual(length.value, 4263936)
def parse(s):
type = QueryType(s.read("uint:3"))
assert (type == QueryType.ARITH_COMP_WITH_VALUE
) # TODO implement other types
mask_present = s.read("bool")
assert (mask_present is False) # TODO implement this
params = ArithQueryParams.parse(s)
compare_length = Length.parse(s)
compare_value = map(ord, s.read("bytes:" + str(compare_length.value)))
file_a_offset = Offset.parse(s)
return QueryOperand(type=type,
mask_present=mask_present,
params=params,
compare_length=compare_length,
compare_value=compare_value,
file_a_offset=file_a_offset)
def parse(s):
id = s.read("uint:8")
offset = Length.parse(s)
return Offset(id=id, offset=offset)
def parse_alp_return_file_data_operand(self, s):
offset = self.parse_offset(s)
length = Length.parse(s)
data = s.read("bytes:" + str(length.value))
return Data(offset=offset, data=map(ord, data))
def parse_alp_file_data_request_operand(self, s):
offset = self.parse_offset(s)
length = Length.parse(s)
return DataRequest(length=length.value, offset=offset)
