def test_decode_aligned_int(self):
sint = Int(1, 'foo', None, align='4')
decoded = sint.decode(to_bin('0xb800 0000'), None)
self.assertEquals(decoded.int, -72)
self.assertEquals(decoded.hex, '0xb8')
self.assertEquals(len(decoded), 4)
self.assertEquals(decoded._raw, to_bin('0xb800 0000'))
def test_decode_little_endian_container(self):
container = self._2_byte_container()
decoded = container.decode(to_bin("0x0190"), little_endian=True)
self.assertEqual(1, decoded.oneBit.int)
self.assertEqual(1, decoded.threeBits.int)
self.assertEqual(1, decoded.twelveBits.int)
self.assertEquals(decoded._raw, to_bin("0x0190"))
def test_decode_aligned(self):
struct = get_struct_with_length_and_alignment()
decoded = struct.decode(to_bin('0x00010200'), {})
self.assertEqual(decoded.first.int, 1)
self.assertEqual(decoded.second.int, 2)
self.assertEqual(len(decoded), 4)
self.assertEqual(decoded._raw, to_bin('0x00010200'))
def test_decode_aligned_uint(self):
uint = UInt(1, 'foo', None, align='4')
decoded = uint.decode(to_bin('0xff00 0000'), None)
self.assertEquals(decoded.int, 255)
self.assertEquals(decoded.hex, '0xff')
self.assertEquals(len(decoded), 4)
self.assertEquals(decoded._raw, to_bin('0xff00 0000'))
def test_little_endian_struct_encode(self):
pair = _get_pair()
encoded = pair.encode({}, little_endian=True)
self.assertEquals(encoded.first.hex, '0x0001')
self.assertEquals(encoded.first._raw, to_bin('0x0100'))
self.assertEquals(encoded.second.hex, '0x0002')
self.assertEquals(encoded.second._raw, to_bin('0x0200'))
def test_little_endian_list_encode(self):
struct_list = _get_struct_list()
encoded = struct_list.encode({}, None, little_endian=True)
self.assertEquals(encoded[0].first.hex, '0x0001')
self.assertEquals(encoded[0].first._raw, to_bin('0x0100'))
self.assertEquals(encoded[0].second.hex, '0x0002')
self.assertEquals(encoded[0].second._raw, to_bin('0x0200'))
def _assert_align(self, value, length, raw):
field = Field('uint', 'name', to_bin(value), aligned_len=length)
self.assertEquals(field.int, int(value, 16))
self.assertEquals(field.hex, value)
self.assertEquals(field._raw, to_bin(raw))
self.assertEquals(field.bytes, to_bin(value))
if length:
self.assertEquals(len(field), length)
def test_decode_little_endian_header(self):
byte_stream = MockStream(to_bin('0x0500 0800 cafe babe'))
self._msg_stream = MessageStream(byte_stream, self._protocol, threading.RLock())
decoded = self._msg_stream.get(self.tmp)
self.assertEquals(decoded._header.msgId.hex, '0x0005')
self.assertEquals(decoded._header.msgId._raw, to_bin('0x0500'))
self.assertEquals(decoded.field_1.hex, '0xcafe')
self.assertEquals(decoded.field_1._raw, to_bin('0xcafe'))
self.assertEquals(decoded.field_2.hex, '0xbabe')
self.assertEquals(decoded.field_2._raw, to_bin('0xbabe'))
def test_validate_int(self):
field = Field('int', 'field', to_bin('0xffb8'))
self._should_pass(Int(2, 'field', -72).validate({'field': field}, {}))
self._should_pass(Int(2, 'field', '-72').validate({'field': field}, {}))
self._should_pass(Int(2, 'field', '-0x48').validate({'field': field}, {}))
self._should_pass(Int(2, 'field', '-0x0048').validate({'field': field}, {}))
self._should_pass(Int(2, 'field', '(0|-72)').validate({'field': field}, {}))
def test_encode_aligned_int(self):
sint = Int(1, 'foo', '-72', align='4')
encoded = sint.encode({}, {}, None)
self.assertEquals(encoded.int, -72)
self.assertEquals(encoded.hex, '0xb8')
self.assertEquals(len(encoded), 4)
self.assertEquals(encoded._raw, to_bin('0xb800 0000'))
def test_encode_aligned_uint(self):
uint = UInt(1, 'foo', '0xff', align='4')
encoded = uint.encode({}, {}, None)
self.assertEquals(encoded.int, 255)
self.assertEquals(encoded.hex, '0xff')
self.assertEquals(len(encoded), 4)
self.assertEquals(encoded._raw, to_bin('0xff00 0000'))
def test_decode_message(self):
list = ListTemplate('5', 'five', parent=None)
list.add(UInt(4, None, 3))
decoded = list.decode(to_bin('0x' + ('00000003' * 5)), {})
self.assertEquals(len(decoded[4]), 4)
self.assertEquals(len(decoded), 20)
self.assertEquals(decoded[0].int, 3)
def test_encode_little_endian_container(self):
container = self._2_byte_container()
encoded = container.encode({'foo.threeBits': 1, 'foo.twelveBits': 1}, little_endian=True)
self.assertEqual(1, encoded.oneBit.int)
self.assertEqual(1, encoded.threeBits.int)
self.assertEqual(1, encoded.twelveBits.int)
self.assertEquals(encoded._raw, to_bin("0x0190"))
def test_validate_uint(self):
field = Field('uint', 'field', to_bin('0x0004'))
self._should_pass(UInt(2, 'field', 4).validate({'field': field}, {}))
self._should_pass(UInt(2, 'field', '4').validate({'field': field}, {}))
self._should_pass(UInt(2, 'field', '0x04').validate({'field': field}, {}))
self._should_pass(UInt(2, 'field', '0x0004').validate({'field': field}, {}))
self._should_pass(UInt(2, 'field', '(0|4)').validate({'field': field}, {}))
def test_decode_raw_bytes_with_star_length(self):
container = TBCDContainerTemplate('tbcd', None)
container.add(TBCD('3', 'first', '123'))
container.add(TBCD('*', 'second', '6100000000001'))
decoded = container.decode(to_bin("0b0010000101100011000000010000000000000000000000000000000000010000"))
self.assertEquals('123', decoded.first.tbcd)
self.assertEquals('6100000000001', decoded.second.tbcd)
def test_conversions(self):
field = Field('unit', 'name', to_bin('0x00616200'))
self.assertEquals(field.int, 0x00616200)
self.assertEquals(field.hex, '0x00616200')
self.assertEquals(field.ascii, 'ab')
self.assertEquals(field.bytes, '\x00\x61\x62\x00')
self.assertEquals(field.chars, 'ab')
self.assertEquals(field.bin, '0b00000000' + '01100001' + '01100010' + '00000000')
def test_conversions(self):
field = Field("unit", "name", to_bin("0x00616200"))
self.assertEquals(field.int, 0x00616200)
self.assertEquals(field.hex, "0x00616200")
self.assertEquals(field.ascii, "ab")
self.assertEquals(field.bytes, "\x00\x61\x62\x00")
self.assertEquals(field.chars, "ab")
self.assertEquals(field.bin, "0b00000000" + "01100001" + "01100010" + "00000000")
def _matches(self, header, fields, header_filter):
if header_filter:
if header_filter not in fields:
raise AssertionError('Trying to filter messages by header field %s, but no value has been set for %s' %
(header_filter, header_filter))
if header[header_filter].bytes != to_bin(fields[header_filter]):
return False
return True
def test_encode_perfectly_aligned(self):
struct = get_struct_with_length_and_alignment()
struct.add(UInt(5, 'third', 3))
encoded = struct.encode({}, {})
self.assertEqual(encoded.first.int, 1)
self.assertEqual(encoded.second.int, 2)
self.assertEqual(encoded.third.int, 3)
self.assertEqual(len(encoded), 8)
self.assertEqual(encoded._raw, to_bin('0x00010200 00000003'))
def _matches(self, header, fields, header_filter):
# FIXME: Matching should not be assuming matching string presentation
if header_filter:
if header_filter not in fields:
raise AssertionError('Trying to filter messages by header field %s, but no value has been set for %s' %
(header_filter, header_filter))
if header[header_filter].bytes != to_bin(fields[header_filter]):
return False
return True
def test_pretty_print_primitive_list(self):
decoded = _get_list_of_three().decode(to_bin('0x' + ('0003' * 3)), {})
self.assertEquals('\n' + repr(decoded),
"""
uint topthree[]
0 = 3 (0x0003)
1 = 3 (0x0003)
2 = 3 (0x0003)
""")
def test_decode_dynamic_list(self):
tmp = MessageTemplate('Dymagic', self._protocol, {})
tmp.add(UInt(2, 'len', None))
lst = ListTemplate('len', 'foo', parent=None)
lst.add(UInt(1, 'bar', None))
tmp.add(lst)
decoded = tmp.decode(to_bin('0x 00 04 6162 6364'))
self.assertEquals(decoded.len.int, 4)
self.assertEquals(decoded.foo[0].hex, '0x61')
def test_binary_to_bin(self):
self.assertEquals(to_bin("0b0"), "\x00")
self.assertEquals(to_bin("0b1"), "\x01")
self.assertEquals(to_bin("0b1111 1111"), "\xff")
self.assertEquals(to_bin("0b1 0000 0000"), "\x01\x00")
self.assertEquals(to_bin("0b01 0b01 0b01"), "\x15")
self.assertEquals(to_bin("0b11" * 32), "\xff\xff\xff\xff\xff\xff\xff\xff")
self.assertEquals(to_bin("0b11" * 1024), "\xff\xff\xff\xff\xff\xff\xff\xff" * 32)
def test_decode_dynamic_primitive(self):
tmp = MessageTemplate('Dymagic', self._protocol, {})
tmp.add(UInt(1, 'len', None))
tmp.add(Char('len', 'chars', None))
tmp.add(UInt(1, 'len2', None))
tmp.add(Char('len2', 'chars2', None))
decoded = tmp.decode(to_bin('0x 04 6162 6364 02 6566'))
self.assertEquals(decoded.len.int, 4)
self.assertEquals(decoded.chars.ascii, 'abcd')
self.assertEquals(decoded.chars2.ascii, 'ef')
def setUp(self):
self._protocol = Protocol("Test")
self._protocol.add(UInt(1, "id", 1))
self._protocol.add(UInt(2, "length", None))
self._protocol.add(PDU("length-2"))
self._msg = MessageTemplate("FooRequest", self._protocol, {"id": "0xaa"})
self._msg.add(UInt(1, "field_1", None))
self._msg.add(UInt(1, "field_2", None))
byte_stream = MockStream(to_bin("0xff0004cafe aa0004dead dd0004beef"))
self._msg_stream = MessageStream(byte_stream, self._protocol, threading.RLock())
def setUp(self):
self._protocol = Protocol('Test')
self._protocol.add(UInt(1, 'id', 1))
self._protocol.add(UInt(2, 'length', None))
self._protocol.add(PDU('length-2'))
self._msg = MessageTemplate('FooRequest', self._protocol, {'id': '0xaa'})
self._msg.add(UInt(1, 'field_1', None))
self._msg.add(UInt(1, 'field_2', None))
byte_stream = MockStream(to_bin('0xff0004cafe aa0004dead dd0004beef'))
self._msg_stream = MessageStream(byte_stream, self._protocol)
def test_pretty_print_list_list(self):
decoded = _get_list_list().decode(to_bin('0x' + ('0003' * 4)), {})
self.assertEquals('\n' + repr(decoded),
"""
List listlist[]
uint 0[]
0 = 3 (0x0003)
1 = 3 (0x0003)
uint 1[]
0 = 3 (0x0003)
1 = 3 (0x0003)
""")
def test_hex_to_bin(self):
self.assertEquals(to_bin("0x0"), "\x00")
self.assertEquals(to_bin("0x00"), "\x00")
self.assertEquals(to_bin("0x5"), "\x05")
self.assertEquals(to_bin("0xff"), "\xff")
self.assertEquals(to_bin("0x100"), "\x01\x00")
self.assertEquals(to_bin("0x01 0x02 0x03"), "\x01\x02\x03")
def test_to_tbcd_binary(self):
self.assertEquals(to_bin("0b11110001"), to_tbcd_binary("1"))
self.assertEquals(to_bin("0b00010001"), to_tbcd_binary("11"))
self.assertEquals(to_bin("0b11110010"), to_tbcd_binary("2"))
self.assertEquals(to_bin("0b00110010"), to_tbcd_binary("23"))
self.assertEquals(to_bin("0b0010000111110011"), to_tbcd_binary("123"))
self.assertEquals(
to_bin("0b0110001000010010000000100000000000000000000000000000000011110001"),
to_tbcd_binary("262120000000001"),
)
def _matches(self, header, fields, header_filter):
if header_filter:
if header_filter not in fields:
raise AssertionError('Trying to filter messages by header field %s, but no value has been set for %s' %
(header_filter, header_filter))
field = header[header_filter]
if field._type == 'chars':
if fields[header_filter].startswith('REGEXP:'):
try:
regexp = fields[header_filter].split(':')[1].strip()
return bool(re.match(regexp, field.ascii))
except re.error as e:
raise Exception("Invalid RegEx Error : " + str(e))
return field.ascii == fields[header_filter]
if field._type == 'uint':
return field.uint == to_int(fields[header_filter])
if header[header_filter].bytes != to_bin(fields[header_filter]):
return False
return True
def test_validate_union(self):
union = self._get_foo_union()
decoded = union.decode(to_bin('0xcafebabe'))
self._should_pass(union.validate({'foo': decoded}, {'foo.small': '', 'foo.medium': ''}))
self._should_fail(union.validate({'foo': decoded}, {'foo.small': '0xff', 'foo.medium': ''}), 1)
def test_validate_struct_union(self):
struct = get_pair()
union = self._get_foo_union()
struct.add(union)
decoded = struct.decode(to_bin('0xcafebabe f00dd00d'))
self._should_fail(struct.validate({'pair': decoded}, {}), 3)
def test_not_enough_data(self):
template = get_list_of_three()
self.assertRaises(Exception, template.decode, to_bin('0x00010002'))
def test_decode_union(self):
union = self._get_foo_union()
decoded = union.decode(to_bin('0xcafebabe'))
self.assertEquals(decoded.small.hex, '0xca')
self.assertEquals(decoded.medium.hex, '0xcafe')
self.assertEquals(decoded.large.hex, '0xcafebabe')
def test_conversions(self):
self.assertEqual(self.cont.seven.int, 42)
self.assertEqual(self.cont.seven.bytes, to_bin(42))
self.assertEqual(self.cont.seven.ascii, '*')
def test_little_endian_with_align(self):
field = Field('uint', 'name', to_bin('0x0100'), aligned_len=5, little_endian=True)
self.assertEquals(field._raw, to_bin('0x0100000000'))
self.assertEquals(field.int, 1)
self.assertEquals(field.bytes, to_bin('0x0001'))
self.assertEquals(field.hex, '0x0001')
def test_decode_several_structs(self):
str_list = get_struct_list()
decoded = str_list.decode(to_bin('0xcafebabe d00df00d'), {})
self.assertEquals(decoded[0].first.hex, '0xcafe')
self.assertEquals(decoded[1].second.hex, '0xf00d')
def test_encode_union_with_param(self):
union = self._get_foo_union()
encoded = union.encode({'foo': 'small', 'foo.small': '0xff'}, {})
self.assertEquals(encoded._raw, to_bin('0xff00 0000'))
def test_get_bytes_from_decoded_union(self):
union = self._get_foo_union()
decoded = union.decode(to_bin('0xcafebabe'))
self.assertEquals(decoded._raw, to_bin('0xcafebabe'))
def test_fail_validating_uint(self):
template = UInt(2, 'field', 4)
field = Field('uint', 'field', to_bin('0x0004'))
self._should_fail(template.validate({'field': field}, {'field': '42'}), 1)
def _bin_container(self, little_endian=False):
cont = BinaryContainer('foo', little_endian=little_endian)
cont['three'] = BinaryField(3, 'three', to_bin('0b101'))
cont['six'] = BinaryField(6, 'six', to_bin('0b101010'))
cont['seven'] = BinaryField(7, 'seven', to_bin('0b0101010'))
return cont
def test_little_endian_int_encode(self):
template = Int(2, 'field', -72)
field = template.encode({}, {}, None, little_endian=True)
self.assertEquals(field._raw, to_bin('0xb8ff'))
self.assertEquals(field.int, -72)
self.assertEquals(field.bytes, to_bin('0xffb8'))
def test_little_endian_uint_encode(self):
template = UInt(2, 'field', 1)
field = template.encode({}, {}, None, little_endian=True)
self.assertEquals(field._raw, to_bin('0x0100'))
self.assertEquals(field.int, 1)
self.assertEquals(field.bytes, to_bin('0x0001'))
def _binary_substring(self, bin_str, data_index, field):
return to_bin("0b" +
bin_str[data_index:data_index + field.length.value])
def test_little_endian_bin_container(self):
little = self._bin_container(little_endian=True)
self.assertEqual(little.three.bin, '0b101')
self.assertEqual(little.six.bin, '0b101010')
self.assertEqual(little.seven.bin, '0b0101010')
self.assertEqual(little._raw, to_bin('0b0010 1010 1011 0101'))
def test_binary_to_bin(self):
print(to_bin('0b0'))
print(to_bin('0b1'))
print(to_bin('0b1111 1111'))
print(to_bin('0b1 0000 0000'))
print(to_bin('0b01 0b01 0b01'))
self.assertEqual(to_bin('0b0'), b'\x00')
self.assertEqual(to_bin('0b1'), b'\x01')
self.assertEqual(to_bin('0b1111 1111'), b'\xff')
self.assertEqual(to_bin('0b1 0000 0000'), b'\x01\x00')
self.assertEqual(to_bin('0b01 0b01 0b01'), b'\x15')
self.assertEqual(to_bin('0b11' * 32),
b'\xff\xff\xff\xff\xff\xff\xff\xff')
self.assertEqual(to_bin('0b11' * 1024),
b'\xff\xff\xff\xff\xff\xff\xff\xff' * 32)
def test_encode_union(self):
union = self._get_foo_union()
encoded = union.encode({'foo': 'medium'}, {})
self.assertEquals(encoded._raw, to_bin('0xf00d 0000'))
def test_little_endian(self):
field = Field('uint', 'name', to_bin('0x0100'), little_endian=True)
self.assertEqual(field._raw, to_bin('0x0100'))
self.assertEqual(field.int, 1)
self.assertEqual(field.bytes, to_bin('0x0001'))
self.assertEqual(field.hex, '0x0001')
def __init__(self, length, name, default_value=None, terminator=None):
_TemplateField.__init__(self, name, default_value)
self._terminator = to_bin(terminator)
self.length = Length(length)
def test_read_header_and_pdu(self):
stream = MockStream(to_bin('0xff0004cafe'))
header, data = self._protocol.read(stream)
self.assertEquals(header.id.hex, '0xff')
self.assertEquals(data, b'\xca\xfe')
def test_decode_struct(self):
pair = get_pair()
decoded = pair.decode(to_bin('0xcafebabe'), {})
self.assertEquals(decoded.first.hex, '0xcafe')
self.assertEquals(decoded.second.hex, '0xbabe')
def test_conditional_decode_has_element(self):
cond = self._get_conditional()
decoded = cond.decode(to_bin('0x0001 000a 0043'))
self.assertEquals(decoded.mycondition.exists, True)
self.assertEquals(decoded.mycondition.myvalue.int, 10)
def test_union_length(self):
union = self._get_foo_union()
decoded = union.decode(to_bin('0xcafebabe'))
self.assertEquals(4, len(decoded))
def test_conditional_decode(self):
cond = self._get_conditional()
decoded = cond.decode(to_bin('0x00004242'))
self.assertEquals(decoded.mycondition.exists, False)
def test_empty_values_to_bin(self):
self.assertEqual('', to_bin(None))
self.assertEqual('', to_bin(''))
def uint_field(value='0x00'):
return Field('uint', 'name', to_bin(value))
def test_hex_larger_than_8_bytes_works(self):
self.assertEqual(to_bin('0xcafebabe f00dd00d deadbeef'),
'\xca\xfe\xba\xbe\xf0\x0d\xd0\x0d\xde\xad\xbe\xef')
def test_integer_larger_than_8_bytes_works(self):
self.assertEqual(to_bin('18446744073709551616'),
'\x01\x00\x00\x00\x00\x00\x00\x00\x00')
def test_get_binary_container_bytes(self):
self.assertEqual(self.cont._raw, to_bin('0b1011 0101 0010 1010'))
def test_to_tbcd_value(self):
self.assertEqual('1', to_tbcd_value(to_bin('0b11110001')))
self.assertEqual('11', to_tbcd_value(to_bin('0b00010001')))
self.assertEqual('2', to_tbcd_value(to_bin('0b11110010')))
self.assertEqual('23', to_tbcd_value(to_bin('0b00110010')))
self.assertEqual('123', to_tbcd_value(to_bin('0b0010000111110011')))
