def test_from_iterable(self):
subtree = (1, 3, 6, 1, 2, 1, 1, 1, 0)
obj = ObjectIdentifier.from_iterable(subtree)
self.assertEqual(str(obj), '.1.3.6.1.2.1.1.1.0')
subtree = (1, 2, 3, 4)
obj = ObjectIdentifier.from_iterable(subtree)
self.assertEqual(str(obj), '.1.2.3.4')
def test_oid_zero(self):
null_oid_ints = (0, 0, 0, 0)
null_oid_bytes = struct.pack('!BBBB', *null_oid_ints)
null_oid = ObjectIdentifier.from_bytes(null_oid_bytes, '!')
self.assertEqual(null_oid.n_subid, 0)
self.assertEqual(null_oid.prefix_, 0)
self.assertEqual(null_oid.include, 0)
self.assertEqual(null_oid.reserved, 0)
self.assertIs(null_oid.subids, ())
def test_getnextpdu_eth3_asic1(self):
# oid.include = 1
oid = ObjectIdentifier(12, 0, 1, 0,
(1, 0, 8802, 1, 1, 2, 1, 4, 1, 1, 7, 1, 9))
get_pdu = GetNextPDU(header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0,
0),
oids=[oid])
print("GetNextPDU sr=", get_pdu.sr)
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
print(response)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.OCTET_STRING)
print("test_getnextpdu_exactmatch: ", str(oid))
self.assertEqual(
str(value0.name),
str(
ObjectIdentifier(11, 0, 1, 0,
(1, 0, 8802, 1, 1, 2, 1, 4, 1, 1, 7, 1, 9))))
self.assertEqual(str(value0.data), "Ethernet3")
def test_high_speed(self):
"""
For a speed higher than 4,294,967,295 the retrun should be 4294967295
"""
oid = ObjectIdentifier(11, 0, 0, 0, (1, 3, 6, 1, 2, 1, 2, 2, 1, 5, 1))
get_pdu = GetNextPDU(header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0,
0),
oids=[oid])
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
print(response)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.GAUGE_32)
self.assertEqual(
str(value0.name),
str(
ObjectIdentifier(11, 0, 1, 0,
(1, 3, 6, 1, 2, 1, 2, 2, 1, 5, 5))))
self.assertEqual(value0.data, 4294967295)
def test_mgmt_iface_alias(self):
"""
Test that mgmt port alias
"""
oid = ObjectIdentifier(11, 0, 0, 0,
(1, 3, 6, 1, 2, 1, 31, 1, 1, 1, 1, 10001))
get_pdu = GetPDU(header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0, 0),
oids=[oid])
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
print(response)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.OCTET_STRING)
self.assertEqual(
str(value0.name),
str(
ObjectIdentifier(11, 0, 1, 0,
(1, 3, 6, 1, 2, 1, 31, 1, 1, 1, 1, 10001))))
self.assertEqual(str(value0.data), 'mgmt1')
def test_vlan_iface_description(self):
"""
Test vlan interface description (which is simply the name)
"""
oid = ObjectIdentifier(11, 0, 0, 0,
(1, 3, 6, 1, 2, 1, 2, 2, 1, 2, 3000))
get_pdu = GetPDU(header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0, 0),
oids=[oid])
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
print(response)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.OCTET_STRING)
self.assertEqual(
str(value0.name),
str(
ObjectIdentifier(11, 0, 1, 0,
(1, 3, 6, 1, 2, 1, 2, 2, 1, 2, 3000))))
self.assertEqual(str(value0.data), 'Vlan1000')
def test_mgmt_iface_description_ifMIB(self):
"""
Test mgmt port description (which is simply an alias) in the ifMIB OID path of the MIB
"""
oid = ObjectIdentifier(12, 0, 0, 0,
(1, 3, 6, 1, 2, 1, 31, 1, 1, 1, 18, 10001))
get_pdu = GetPDU(header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0, 0),
oids=[oid])
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
print(response)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.OCTET_STRING)
self.assertEqual(
str(value0.name),
str(
ObjectIdentifier(12, 0, 1, 0,
(1, 3, 6, 1, 2, 1, 31, 1, 1, 1, 18, 10001))))
self.assertEqual(str(value0.data), 'snowflake')
def test_getnextpdu_noneifindex(self):
# oid.include = 1
oid = ObjectIdentifier(10, 0, 1, 0, (1, 3, 6, 1, 2, 1, 2, 2, 1, 1))
get_pdu = GetNextPDU(header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0,
0),
oids=[oid])
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
print(response)
n = len(response.values)
# self.assertEqual(n, 7)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.INTEGER)
self.assertEqual(
str(value0.name),
str(
ObjectIdentifier(11, 0, 1, 0,
(1, 3, 6, 1, 2, 1, 2, 2, 1, 1, 1))))
self.assertEqual(value0.data, 0)
def test_mgmt_iface_admin_status(self):
"""
Test mgmt port admin status
"""
oid = ObjectIdentifier(11, 0, 0, 0,
(1, 3, 6, 1, 2, 1, 2, 2, 1, 7, 10001))
get_pdu = GetPDU(header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0, 0),
oids=[oid])
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
print(response)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.INTEGER)
self.assertEqual(
str(value0.name),
str(
ObjectIdentifier(11, 0, 1, 0,
(1, 3, 6, 1, 2, 1, 2, 2, 1, 7, 10001))))
self.assertEqual(value0.data, 1)
def test_if_type_eth(self):
"""
For ethernet the type shpuld be 6
"""
oid = ObjectIdentifier(11, 0, 0, 0, (1, 3, 6, 1, 2, 1, 2, 2, 1, 3, 1))
get_pdu = GetNextPDU(header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0,
0),
oids=[oid])
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
print(response)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.INTEGER)
self.assertEqual(
str(value0.name),
str(
ObjectIdentifier(11, 0, 1, 0,
(1, 3, 6, 1, 2, 1, 2, 2, 1, 3, 5))))
self.assertEqual(value0.data, 6)
def test_low_speed(self):
"""
For an interface with a speed inside the 32 bit counter returns the speed of the interface in bps
"""
oid = ObjectIdentifier(11, 0, 0, 0, (1, 3, 6, 1, 2, 1, 2, 2, 1, 5, 9))
get_pdu = GetNextPDU(header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0,
0),
oids=[oid])
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
print(response)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.GAUGE_32)
self.assertEqual(
str(value0.name),
str(
ObjectIdentifier(11, 0, 1, 0,
(1, 3, 6, 1, 2, 1, 2, 2, 1, 5, 13))))
self.assertEqual(value0.data, 1000000000)
def test_getnextpdu_empty(self):
get_pdu = GetNextPDU(
header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0, 0),
oids=(ObjectIdentifier(12, 0, 0, 0,
(1, 3, 6, 1, 2, 1, 4, 24, 4, 1, 1, 255)), ))
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
print(response)
n = len(response.values)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.END_OF_MIB_VIEW)
def test_getpdu_internal_noinstance(self):
get_pdu = GetPDU(header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0, 0),
oids=(ObjectIdentifier(
20, 0, 0, 0, (1, 3, 6, 1, 2, 1, 4, 24, 4, 1, 1, 0,
0, 0, 0, 0, 10, 10, 0, 5)), ))
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
print(response)
n = len(response.values)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.NO_SUCH_INSTANCE)
def test_vlan_iface(self):
"""
Test that vlan interface is present in the MIB
"""
oid = ObjectIdentifier(11, 0, 0, 0,
(1, 3, 6, 1, 2, 1, 2, 2, 1, 1, 2999))
get_pdu = GetNextPDU(header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0,
0),
oids=[oid])
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
print(response)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.INTEGER)
self.assertEqual(
str(value0.name),
str(
ObjectIdentifier(11, 0, 1, 0,
(1, 3, 6, 1, 2, 1, 2, 2, 1, 1, 3000))))
self.assertEqual(value0.data, 2999)
def test_getnextpdu_local_port_identification(self):
# oid.include = 1
oid = ObjectIdentifier(11, 0, 1, 0,
(1, 0, 8802, 1, 1, 2, 1, 3, 7, 1, 3))
get_pdu = GetNextPDU(header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0,
0),
oids=[oid])
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.OCTET_STRING)
self.assertEqual(str(value0.data), "etp1")
def test_high_speed(self):
"""
should return the speed of the interface
"""
oid = ObjectIdentifier(12, 0, 0, 0,
(1, 3, 6, 1, 2, 1, 31, 1, 1, 1, 15, 1))
get_pdu = GetNextPDU(header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0,
0),
oids=[oid])
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
print(response)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.GAUGE_32)
self.assertEqual(
str(value0.name),
str(
ObjectIdentifier(12, 0, 1, 0,
(1, 3, 6, 1, 2, 1, 31, 1, 1, 1, 15, 5))))
self.assertEqual(value0.data, 100000)
def test_getpdu_noinstance_eth0_docker0(self):
oid = ObjectIdentifier(
20, 0, 1, 0, (1, 3, 6, 1, 2, 1, 4, 22, 1, 2, 9, 240, 127, 1, 1))
get_pdu = GetPDU(header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0, 0),
oids=[oid])
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
print(response)
n = len(response.values)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.NO_SUCH_INSTANCE)
def test_no_speed(self):
"""
For a port with no speed in the db the result should be 0
"""
oid = ObjectIdentifier(11, 0, 0, 0,
(1, 3, 6, 1, 2, 1, 2, 2, 1, 5, 9004))
get_pdu = GetNextPDU(header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0,
0),
oids=[oid])
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
print(response)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.GAUGE_32)
self.assertEqual(
str(value0.name),
str(
ObjectIdentifier(11, 0, 1, 0,
(1, 3, 6, 1, 2, 1, 2, 2, 1, 5, 9008))))
self.assertEqual(value0.data, 0)
def test_getpdu_disappeared(self):
oid = ObjectIdentifier(
20, 0, 0, 0, (1, 3, 6, 1, 4, 1, 9, 9, 187, 1, 2, 5, 1, 3, 2, 16,
252, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x10))
get_pdu = GetPDU(header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0, 0),
oids=[oid])
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
print(response)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.NO_SUCH_INSTANCE)
def test_getPsu2Status(self):
oid = ObjectIdentifier(2, 0, 0, 0,
(1, 3, 6, 1, 4, 1, 9, 9, 117, 1, 1, 2, 1, 2, 2))
get_pdu = GetPDU(header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0, 0),
oids=[oid])
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.INTEGER)
self.assertEqual(str(value0.name), str(oid))
self.assertEqual(value0.data, 2)
def test_getnextpdu_firstifalias(self):
# oid.include = 1
oid = ObjectIdentifier(10, 0, 1, 0,
(1, 3, 6, 1, 2, 1, 31, 1, 1, 1, 18))
get_pdu = GetNextPDU(header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0,
0),
oids=[oid])
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
print(response)
n = len(response.values)
# self.assertEqual(n, 7)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.OCTET_STRING)
self.assertEqual(
str(value0.name),
str(
ObjectIdentifier(11, 0, 1, 0,
(1, 3, 6, 1, 2, 1, 31, 1, 1, 1, 18, 1))))
self.assertEqual(str(value0.data), 'Ethernet0')
def test_no_description(self):
"""
For a port with no description in the db the result should be ian empty string
"""
oid = ObjectIdentifier(12, 0, 0, 0,
(1, 3, 6, 1, 2, 1, 31, 1, 1, 1, 18, 113))
get_pdu = GetNextPDU(header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0,
0),
oids=[oid])
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
print(response)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.OCTET_STRING)
self.assertEqual(
str(value0.name),
str(
ObjectIdentifier(12, 0, 1, 0,
(1, 3, 6, 1, 2, 1, 31, 1, 1, 1, 18, 117))))
self.assertEqual(str(value0.data), '')
def test_getnextpdu(self):
get_pdu = GetNextPDU(
header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0, 0),
oids=(ObjectIdentifier(
20, 0, 0, 0, (1, 3, 6, 1, 2, 1, 17, 7, 1, 2, 2, 1, 2, 999)), ))
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
print(response)
n = len(response.values)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.INTEGER)
self.assertEqual(value0.data, 113)
def test_getPduIndicationForPort(self):
oid = ObjectIdentifier(32, 0, 0, 0,
(1, 3, 6, 1, 4, 1, 9, 9, 813, 1, 1, 1, 2, 1))
get_pdu = GetPDU(header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0, 0),
oids=[oid])
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut_port)
print(response)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.COUNTER_64)
self.assertEqual(str(value0.name), str(oid))
self.assertEqual(value0.data, 4)
def test_getnextpdu_noeth(self):
# oid.include = 1
oid = ObjectIdentifier(
12, 0, 1, 0, (1, 0, 8802, 1, 1, 2, 1, 4, 1, 1, 7, 18545, 126, 1))
get_pdu = GetNextPDU(header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0,
0),
oids=[oid])
print("GetNextPDU sr=", get_pdu.sr)
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
print(response)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.END_OF_MIB_VIEW)
def test_getpdu(self):
oid = ObjectIdentifier(
20, 0, 0, 0, (1, 3, 6, 1, 2, 1, 4, 22, 1, 2, 37, 10, 0, 0, 19))
get_pdu = GetPDU(header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0, 0),
oids=[oid])
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
print(response)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.OCTET_STRING)
self.assertEqual(str(value0.name), str(oid))
self.assertEqual(value0.data.string, b'\x52\x54\x00\x04\x52\x5d')
def _check_getpdu(self, sub_id, expected_mib):
oids = [
ObjectIdentifier(
12, 0, 1, 0,
(1, 3, 6, 1, 2, 1, 47, 1, 1, 1, 1, field_sub_id, sub_id))
for field_sub_id in expected_mib
]
get_pdu = GetNextPDU(header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0,
0),
oids=oids)
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
for mib_key, value in zip(expected_mib, response.values):
expected_oid = ObjectIdentifier(
12, 0, 1, 0,
(1, 3, 6, 1, 2, 1, 47, 1, 1, 1, 1, mib_key, sub_id))
expected_type, expected_value = expected_mib[mib_key]
self.assertEqual(str(value.name), str(expected_oid))
self.assertEqual(value.type_, expected_type)
self.assertEqual(str(value.data), str(expected_value))
def test_getpdu_established_asic2(self):
oid = ObjectIdentifier(
20, 0, 0, 0,
(1, 3, 6, 1, 4, 1, 9, 9, 187, 1, 2, 5, 1, 3, 1, 4, 10, 10, 0, 5))
get_pdu = GetPDU(header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0, 0),
oids=[oid])
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
print(response)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.INTEGER)
self.assertEqual(str(value0.name), str(oid))
self.assertEqual(value0.data, 6)
def test_getnextpdu(self):
get_pdu = GetNextPDU(
header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0, 0),
oids=(ObjectIdentifier(21, 0, 0, 0,
(1, 3, 6, 1, 2, 1, 4, 24, 4, 1, 1, 0)), ))
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
print(response)
n = len(response.values)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.IP_ADDRESS)
self.assertEqual(str(value0.data),
ipaddress.ip_address("0.0.0.0").packed.decode())
def test_getPduRequestForPriority(self):
oid = ObjectIdentifier(8, 0, 0, 0, (1, 3, 6, 1, 4, 1, 9, 9, 813, 1, 2, 1, 2, 9, 0))
get_pdu = GetPDU(
header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0, 0),
oids=[oid]
)
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut_prio)
print(response)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.COUNTER_64)
self.assertEqual(str(value0.name), str(oid))
self.assertEqual(value0.data, 209347219842134092490 % pow(2, 64)) # Test integer truncation
def test_roundtrip(self):
open_pdu = OpenPDU(
header=PDUHeader(1, 1, 16, 0, 0, 0, 0, 0),
timeout=42,
oid=ObjectIdentifier(4, 2, 0, 0, (1, 1, 1, 0)),
descr="HOWDY-HO, NEIGHBOR!"
)
encoded = open_pdu.encode()
decoded = PDU.decode(encoded)
self.assertEqual(decoded.header.type_, PduTypes.OPEN)
self.assertIsInstance(open_pdu, OpenPDU)
self.assertEqual(open_pdu, decoded)
print(open_pdu)
def test_getMulticastQueueCounters(self):
oid = ObjectIdentifier(
8, 0, 0, 0,
(1, 3, 6, 1, 4, 1, 9, 9, 580, 1, 5, 5, 1, 4, 5, 2, 1, 9))
get_pdu = GetPDU(header=PDUHeader(1, PduTypes.GET, 16, 0, 42, 0, 0, 0),
oids=[oid])
encoded = get_pdu.encode()
response = get_pdu.make_response(self.lut)
print(response)
value0 = response.values[0]
self.assertEqual(value0.type_, ValueType.NO_SUCH_INSTANCE)
self.assertEqual(str(value0.name), str(oid))
self.assertEqual(value0.data, None)
def test_search_range(self):
oid_start = ObjectIdentifier(4, 2, 0, 0, (1, 1, 1, 0))
oid_end = ObjectIdentifier(0, 0, 0, 0, ())
sr1 = SearchRange(oid_start, oid_end)
sr2 = SearchRange.from_bytes(oid_start.to_bytes('!') + oid_end.to_bytes('!'), '!')
self.assertEqual(sr1, sr2)
self.assertEqual(sr1.size, 24)
print(sr1)
oid_start = ObjectIdentifier(4, 2, 0, 0, (1, 1, 1, 0))
oid_end = ObjectIdentifier(4, 2, 0, 0, (2, 2, 2, 0))
sr1 = SearchRange(oid_start, oid_end)
sr2 = SearchRange.from_bytes(oid_start.to_bytes('!') + oid_end.to_bytes('!'), '!')
self.assertEqual(sr1, sr2)
self.assertEqual(sr1.size, 40)
print(sr1)
self.assertEqual(SearchRange.from_bytes(sr1.to_bytes('!'), '!'), sr1)
def test_bad_unpack(self):
with self.assertRaises(struct.error):
# garbage data. Don't assume '' -> 0, 0, 0...
ObjectIdentifier.from_bytes(b'', '')
with self.assertRaises(struct.error):
# n_subid = 4 -> should be at least 20 bytes -> input is too short.
ObjectIdentifier.from_bytes(b'\x04\x00\x00\x00', '!')
with self.assertRaises(struct.error):
# Bad format specifier.
ObjectIdentifier.from_bytes(b'\x00\x00\x00\x00', '-')
def test_oid(self):
oid1 = ObjectIdentifier(4, 2, 0, 0, (1, 1, 1, 0))
self.assertEqual(str(oid1), '.1.3.6.1.2.1.1.1.0')
self.assertEqual(oid1.size, 20)
print(oid1)
oid2 = ObjectIdentifier.from_bytes(oid1.to_bytes('!'), '!') # round-trip
self.assertEqual(str(oid2), '.1.3.6.1.2.1.1.1.0')
self.assertEqual(oid2.size, 20)
oid_literal = ObjectIdentifier(4, 0, 0, 0, (1, 2, 3, 4))
self.assertEqual(str(oid_literal), '.1.2.3.4')
print(oid_literal)
oid_small = ObjectIdentifier(0, 0, 0, 0, ())
self.assertEqual(oid_small.size, 4)
dell_oid = ObjectIdentifier(n_subid=7, prefix_=4, include=0, reserved=0, subids=(1, 6027, 3, 10, 1, 2, 9))
check = ObjectIdentifier.from_bytes(dell_oid.to_bytes('!'), '!')
self.assertEqual(check, dell_oid)