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import unittest
import unittest.mock as mock
import os
import re
import socket
import ipaddress
from datetime import timedelta
from snimpy import mib, basictypes
from pysnmp.proto import rfc1902
class TestBasicTypes(unittest.TestCase):
def setUp(self):
mib.load(os.path.join(os.path.dirname(os.path.abspath(__file__)),
"SNIMPY-MIB.mib"))
def tearDown(self):
mib.reset()
def testInteger(self):
"""Test integer basic type"""
a = basictypes.build("SNIMPY-MIB", "snimpyInteger", 18)
self.assertTrue(isinstance(a, basictypes.Integer))
self.assertEqual(a, 18)
self.assertEqual(a + 10, 28)
a = basictypes.build("SNIMPY-MIB", "snimpyInteger", 4)
self.assertEqual(a, 4)
self.assertEqual(a * 4, 16)
a = basictypes.build("SNIMPY-MIB", "snimpyInteger", 5)
self.assertEqual(a, 5)
self.assertTrue(a < 6)
# self.assertTrue(a > 4.6) # type coercion does not work
self.assertTrue(a > 4)
self.assertRaises(TypeError,
basictypes.build, ("SNIMPY-MIB",
"snimpyInteger", [1, 2, 3]))
def testString(self):
"""Test string basic type"""
a = basictypes.build("SNIMPY-MIB", "snimpyString", b"hello")
self.assertTrue(isinstance(a, basictypes.String))
self.assertEqual(a, "hello")
self.assertEqual(a + " john", "hello john")
self.assertEqual(a * 2, "hellohello")
a = basictypes.build("SNIMPY-MIB", "snimpyString", b"hello john")
self.assertTrue("john" in a)
self.assertTrue("steve" not in a)
self.assertEqual(a[1], 'e')
self.assertEqual(a[1:4], 'ell')
self.assertEqual(len(a), 10)
def testStringFromBytes(self):
"""Test string basic type when built from bytes"""
a = basictypes.build("SNIMPY-MIB", "snimpyString", b"hello")
self.assertTrue(isinstance(a, basictypes.String))
self.assertEqual(a, "hello")
self.assertEqual(a + " john", "hello john")
self.assertEqual(a * 2, "hellohello")
def testStringEncoding(self):
"""Test we can create an UTF-8 encoded string"""
a = basictypes.build("SNIMPY-MIB", "snimpyString", "hello")
self.assertEqual(a, "hello")
a = basictypes.build(
"SNIMPY-MIB",
"snimpyUnicodeString",
"\U0001F60E Hello")
self.assertEqual(a, "\U0001F60E Hello")
a = basictypes.build(
"SNIMPY-MIB",
"snimpyUnicodeString",
b'\xf0\x9f\x98\x8e Hello')
self.assertEqual(a, "\U0001F60E Hello")
self.assertRaises(UnicodeError,
basictypes.build, "SNIMPY-MIB", "snimpyString",
b'\xf0\x9f\x98\x8e Hello')
def testOctetString(self):
"""Test octet string basic type"""
a = basictypes.build("SNIMPY-MIB", "snimpyOctetString", b"hello\x41")
self.assertTrue(isinstance(a, basictypes.OctetString))
self.assertEqual(a, b"hello\x41")
self.assertEqual(len(a), 6)
def testIpAddress(self):
"""Test IP address basic type"""
a = basictypes.build(
"SNIMPY-MIB",
"snimpyIpAddress",
socket.inet_aton("10.0.4.5"))
self.assertTrue(isinstance(a, basictypes.IpAddress))
self.assertEqual(a, "10.0.4.5")
self.assertEqual(a, [10, 0, 4, 5])
self.assertEqual(a[2], 4)
self.assertTrue(a < "10.1.2.4")
self.assertTrue(a > "10.0.0.1")
a = basictypes.build("SNIMPY-MIB", "snimpyIpAddress", [1, 2, 3, 5])
self.assertEqual(a, "1.2.3.5")
a = basictypes.build("SNIMPY-MIB", "snimpyIpAddress", "10.0.4.5")
self.assertEqual(a, "10.0.4.5")
self.assertEqual(a, [10, 0, 4, 5])
a = basictypes.build("SNIMPY-MIB", "snimpyIpAddress", b"1001")
self.assertEqual(a, [49, 48, 48, 49])
a = basictypes.build("SNIMPY-MIB", "snimpyIpAddress", b"0101")
self.assertEqual(a, [48, 49, 48, 49])
a = basictypes.build("SNIMPY-MIB", "snimpyIpAddress",
ipaddress.IPv4Address("1.2.3.4"))
self.assertEqual(a, [1, 2, 3, 4])
@unittest.expectedFailure
def testIpAddressXFail(self):
"""Test incomplete IP addresses."""
# While 100 could be expanded to 0.0.0.100,
# ipaddress.IPv4Address does not accept it. It's not our job
# to be more Pythonic than Python.
a = basictypes.build("SNIMPY-MIB", "snimpyIpAddress", "100")
self.assertEqual(a, [0, 0, 0, 100])
def testIncorrectIpAddress(self):
"""Test inappropriate IP addresses"""
self.assertRaises(ValueError,
basictypes.build,
"SNIMPY-MIB", "snimpyIpAddress", "999.5.6.4")
self.assertRaises(ValueError,
basictypes.build,
"SNIMPY-MIB", "snimpyIpAddress", "AAA")
self.assertRaises(ValueError,
basictypes.build,
"SNIMPY-MIB", "snimpyIpAddress", "AAACC")
def testEnum(self):
"""Test enum basic type"""
a = basictypes.build("SNIMPY-MIB", "snimpyEnum", 1)
self.assertTrue(isinstance(a, basictypes.Enum))
self.assertEqual(a, 1)
self.assertEqual(a, "up")
a = basictypes.build("SNIMPY-MIB", "snimpyEnum", "down")
self.assertEqual(a, "down")
self.assertTrue(a != "up")
self.assertEqual(a, 2)
self.assertEqual(str(a), "down(2)")
self.assertRaises(ValueError,
basictypes.build,
"SNIMPY-MIB", "snimpyEnum", "unknown")
self.assertEqual(str(a), "down(2)")
a = basictypes.build("SNIMPY-MIB", "snimpyEnum", 54)
self.assertEqual(a, 54)
def testOid(self):
"""Test OID basic type"""
a = basictypes.build("SNIMPY-MIB", "snimpyObjectId",
mib.get("SNIMPY-MIB", "snimpyInteger"))
self.assertTrue(isinstance(a, basictypes.Oid))
self.assertEqual(a, mib.get("SNIMPY-MIB", "snimpyInteger"))
self.assertEqual(a, mib.get("SNIMPY-MIB", "snimpyInteger").oid)
# Suboid
self.assertTrue((list(mib.get("SNIMPY-MIB",
"snimpyInteger").oid) + [2, 3]) in a)
self.assertTrue((list(mib.get("SNIMPY-MIB",
"snimpyInteger").oid)[:-1] +
[29, 3]) not in a)
# Ability to extract a component
self.assertEqual(a[0], 1)
self.assertEqual(a[1], 3)
self.assertEqual(a[-3], 45121)
self.assertEqual(a[-1], 3)
self.assertEqual(a[:3], (1, 3, 6))
# Also accepts list
a = basictypes.build("SNIMPY-MIB", "snimpyObjectId",
(1, 2, 3, 4))
self.assertEqual(a, (1, 2, 3, 4))
self.assertTrue((1, 2, 3, 4, 5) in a)
self.assertTrue((3, 4, 5, 6) not in a)
def testBoolean(self):
"""Test boolean basic type"""
a = basictypes.build("SNIMPY-MIB", "snimpyBoolean", True)
self.assertTrue(isinstance(a, basictypes.Boolean))
self.assertEqual(a, True)
self.assertTrue(a)
self.assertTrue(not not a)
self.assertEqual(not a, False)
a = basictypes.build("SNIMPY-MIB", "snimpyBoolean", "false")
self.assertEqual(a, False)
b = basictypes.build("SNIMPY-MIB", "snimpyBoolean", True)
self.assertEqual(a or b, True)
self.assertEqual(a and b, False)
def testTimeticks(self):
"""Test timeticks basic type"""
a = basictypes.build("SNIMPY-MIB", "snimpyTimeticks", 676544)
self.assertTrue(isinstance(a, basictypes.Timeticks))
# We can compare to int but otherwise, this is a timedelta
self.assertEqual(a, 676544)
self.assertEqual(str(a), '1:52:45.440000')
self.assertEqual(a, timedelta(0, 6765, 440000))
a = basictypes.build("SNIMPY-MIB", "snimpyTimeticks",
timedelta(1, 3))
self.assertEqual(str(a), '1 day, 0:00:03')
self.assertEqual(a, (3 + 3600 * 24) * 100)
self.assertTrue(a != (3 + 3600 * 24) * 100 + 1)
self.assertTrue(a < timedelta(1, 4))
self.assertTrue(a > timedelta(1, 1))
self.assertTrue(a > 654)
self.assertTrue(a >= 654)
self.assertTrue(a < (3 + 3600 * 24) * 100 + 2)
self.assertEqual(a,
basictypes.build("SNIMPY-MIB", "snimpyTimeticks",
timedelta(1, 3)))
self.assertTrue(a < basictypes.build("SNIMPY-MIB", "snimpyTimeticks",
timedelta(100, 30)))
def testBits(self):
"""Test bit basic type"""
a = basictypes.build("SNIMPY-MIB", "snimpyBits", [1, 2])
self.assertTrue(isinstance(a, basictypes.Bits))
self.assertEqual(a, [2, 1])
self.assertEqual(a, (1, 2))
self.assertEqual(a, {1, 2})
self.assertEqual(a, ["second", "third"])
self.assertEqual(a, {"second", "third"})
self.assertEqual(a, ["second", 2])
self.assertTrue(a != ["second"])
self.assertFalse(a == ["second"])
self.assertFalse(a != ["second", 2])
a |= "last"
a |= ["last", "second"]
self.assertEqual(a, ["second", "last", "third"])
self.assertEqual(str(a), "second(1), third(2), last(7)")
a -= 1
a -= 1
self.assertEqual(a, ["last", "third"])
self.assertEqual(a & "last", True)
self.assertEqual(a & "second", False)
self.assertEqual(a & ["last", 2], True)
self.assertEqual(a & {"last", 2}, True)
self.assertEqual(a & ["last", 0], True)
self.assertEqual(a & ["second", 0], False)
a = basictypes.build("SNIMPY-MIB", "snimpyBits",
{"first", "second"})
self.assertEqual(a, [0, 1])
a = basictypes.build("SNIMPY-MIB", "snimpyBits", [])
self.assertEqual(a, [])
self.assertEqual(str(a), "")
def testInexistentBits(self):
"""Check we cannot set inexistent bits"""
a = basictypes.build("SNIMPY-MIB", "snimpyBits", [1, 2])
self.assertTrue(a & 1)
def nope(a):
a |= 3
self.assertRaises(ValueError, nope, a)
def testStringAsBits(self):
"""Test using bit specific operator with string"""
a = basictypes.build(
"SNIMPY-MIB",
"snimpyOctetString",
b"\x17\x00\x01")
self.assertTrue(isinstance(a, basictypes.OctetString))
b = [7, 6, 5, 3, 23]
for i in range(30):
if i in b:
self.assertTrue(a & i)
else:
self.assertTrue(not (a & i))
self.assertTrue(a & [5, 7])
self.assertTrue(not (a & [5, 9]))
a |= [2, 10]
a -= 22
a -= [23, 22]
self.assertTrue(a & [2, 10])
self.assertTrue(not (a & 23))
self.assertEqual(a, b"\x37\x20\x00")
a |= 31
self.assertEqual(a, b"\x37\x20\x00\x01")
def testPacking(self):
"""Test pack() function"""
self.assertEqual(basictypes.build("SNIMPY-MIB",
"snimpyString",
"Hello world").pack(),
rfc1902.OctetString("Hello world"))
self.assertEqual(basictypes.build("SNIMPY-MIB",
"snimpyInteger",
18).pack(),
rfc1902.Integer(18))
self.assertEqual(basictypes.build("SNIMPY-MIB",
"snimpyInteger",
1804).pack(),
rfc1902.Integer(1804))
self.assertEqual(basictypes.build("SNIMPY-MIB",
"snimpyEnum",
"testing").pack(),
rfc1902.Integer(3))
self.assertEqual(basictypes.build("SNIMPY-MIB",
"snimpyIpAddress",
"10.11.12.13").pack(),
rfc1902.IpAddress("10.11.12.13"))
self.assertEqual(basictypes.build("SNIMPY-MIB",
"snimpyObjectId",
(1, 2, 3, 4)).pack(),
rfc1902.univ.ObjectIdentifier((1, 2, 3, 4)))
self.assertEqual(basictypes.build("SNIMPY-MIB",
"snimpyTimeticks",
timedelta(3, 2)).pack(),
rfc1902.TimeTicks(3 * 3600 * 24 * 100 + 2 * 100))
self.assertEqual(basictypes.build("SNIMPY-MIB",
"snimpyBits",
[1, 7]).pack(),
rfc1902.Bits(b"\x41"))
def testOidConversion(self):
"""Test conversion to/from OID."""
tt = {("snimpySimpleIndex", 47, False): (47,),
("snimpyComplexFirstIP", "10.14.15.4", False): (10, 14, 15, 4),
("snimpyComplexSecondIP", (14, 15, 16, 17), False):
(14, 15, 16, 17),
("snimpyIndexOidVarLen", (47, 48, 49), False): (3, 47, 48, 49),
("snimpyIndexVarLen", "hello1", False):
tuple([len("hello1")] + [ord(a) for a in "hello1"]),
("snimpyIndexFixedLen", "hello2", False):
tuple(ord(a) for a in "hello2"),
("snimpyIndexImplied", "hello3", True):
tuple(ord(a) for a in "hello3"),
("snimpyIndexImplied", "hello3", False):
tuple([len("hello3")] + [ord(a) for a in "hello3"]),
}
for key in tt:
t, v, implied = key
oid = basictypes.build("SNIMPY-MIB",
t,
v).toOid(implied)
self.assertEqual(oid,
tt[key])
# Test double conversion
self.assertEqual(mib.get("SNIMPY-MIB", t).type.fromOid(
mib.get("SNIMPY-MIB", t), oid, implied),
(len(tt[key]), v))
def testTooLargeOid(self):
"""Handle the special case of octet string as OID with too
large octets.
See: https://github.com/vincentbernat/snimpy/pull/14
"""
self.assertEqual(mib.get("SNIMPY-MIB",
"snimpyIndexImplied").type.fromOid(
mib.get("SNIMPY-MIB",
"snimpyIndexImplied"),
(104, 0xff00 | 101, 108, 108, 111),
implied=True),
(5, basictypes.build("SNIMPY-MIB",
"snimpyIndexImplied",
"hello")))
def testOidGreedy(self):
"""Test greediness of fromOid."""
tt = {
("snimpyIndexVarLen", False):
((5, 104, 101, 108, 108, 111, 111, 111, 111),
(6, "hello")),
("snimpyIndexFixedLen", False):
((104, 101, 108, 108, 111, 49, 49, 111), (6, "hello1")),
("snimpyIndexImplied", True):
((104, 101, 108, 108, 111, 50), (6, "hello2")),
("snimpyIndexImplied", False):
((6, 104, 101, 108, 108, 111, 50), (7, "hello2")),
("snimpyComplexFirstIP", False):
((15, 15, 16, 100, 23, 74, 87), (4, "15.15.16.100")),
("snimpySimpleIndex", False): ((17, 19, 20), (1, 17)),
("snimpyIndexOidVarLen", False): ((3, 247, 145, 475568, 475, 263),
(4, (247, 145, 475568))),
}
for key in tt:
t, implied = key
self.assertEqual(mib.get("SNIMPY-MIB", t).type.fromOid(
mib.get("SNIMPY-MIB", t), tt[key][0], implied),
tt[key][1])
# Test if too short
tt = {"snimpyComplexFirstIP": ((17, 19, 20), False),
"snimpyIndexFixedLen": ((104, 101, 108), False),
"snimpyIndexVarLen": ((6, 102, 103, 104, 105), False),
"snimpyIndexOidVarLen": ((3, 247, 145), False),
"snimpyIndexImplied": ((3, 102, 103), False),
}
for t in tt:
self.assertRaises(ValueError,
mib.get("SNIMPY-MIB", t).type.fromOid,
mib.get("SNIMPY-MIB", t), tt[t][0], tt[t][1])
def testDisplay(self):
"""Test string transformation"""
self.assertEqual(str(basictypes.build("SNIMPY-MIB",
"snimpyInteger",
18)), "0.18")
self.assertEqual(str(basictypes.build("SNIMPY-MIB",
"snimpyInteger",
8)), "0.08")
self.assertEqual(str(basictypes.build("SNIMPY-MIB",
"snimpyInteger",
288)), "2.88")
self.assertEqual(str(basictypes.build("SNIMPY-MIB",
"snimpyInteger",
28801)), "288.01")
self.assertEqual(str(basictypes.build("SNIMPY-MIB",
"snimpyString",
"test")), "test")
self.assertEqual(str(basictypes.build("SNIMPY-MIB",
"snimpyOctetString",
b"test")), str(b"test"))
self.assertEqual(str(basictypes.build("SNIMPY-MIB",
"snimpyOctetString",
b"tes\x05")), str(b"tes\x05"))
def testDisplayFormat(self):
"""Test display some with some formats"""
with mock.patch("snimpy.mib.Node.fmt",
new_callable=mock.PropertyMock) as e:
e.return_value = "255a"
a = basictypes.build("SNIMPY-MIB", "snimpyString", b"test")
self.assertEqual(str(a), "test")
a = basictypes.build("SNIMPY-MIB", "snimpyString", b"")
self.assertEqual(str(a), "")
e.return_value = "1x:"
a = basictypes.build("SNIMPY-MIB", "snimpyString", b"test")
self.assertEqual(str(a), "74:65:73:74")
e.return_value = "2a:"
a = basictypes.build("SNIMPY-MIB", "snimpyString", b"test")
self.assertEqual(str(a), "te:st")
e.return_value = "3a:"
a = basictypes.build("SNIMPY-MIB", "snimpyString", b"test")
self.assertEqual(str(a), "tes:t")
e.return_value = "4a"
a = basictypes.build("SNIMPY-MIB", "snimpyString", b"test")
self.assertEqual(str(a), "test")
e.return_value = "2o+1a"
a = basictypes.build("SNIMPY-MIB", "snimpyString", b"test")
self.assertEqual(str(a), "072145+st")
e.return_value = "*2a:+255a"
a = basictypes.build("SNIMPY-MIB", "snimpyString",
b"\x03testtest...")
self.assertEqual(str(a), "te:st:te+st...")
e.return_value = "2a1x:"
a = basictypes.build("SNIMPY-MIB", "snimpyString",
b"aatest")
self.assertEqual(str(a), "aa74:65:73:74")
e.return_value = "*2a+1a:-*3a?="
a = basictypes.build("SNIMPY-MIB", "snimpyString",
b"\x04testtestZ\x02testes\x03testestes")
self.assertEqual(str(a), "te+st+te+st+Z-tes?tes=tes?tes?tes")
def testInputFormat(self):
"""Test we can input a string with a given format"""
with mock.patch("snimpy.mib.Node.fmt",
new_callable=mock.PropertyMock) as e:
e.return_value = "255a"
a = basictypes.build("SNIMPY-MIB", "snimpyString", "test")
self.assertEqual(a.pack(), b"test")
a = basictypes.build("SNIMPY-MIB", "snimpyString", b"")
self.assertEqual(a.pack(), b"")
e.return_value = "1x:"
a = basictypes.build("SNIMPY-MIB", "snimpyString", "74:65:73:74")
self.assertEqual(a.pack(), b"test")
a = basictypes.build("SNIMPY-MIB", "snimpyString", "74:6:73:4")
self.assertEqual(a.pack(), b"t\x06s\x04")
e.return_value = "2a:"
a = basictypes.build("SNIMPY-MIB", "snimpyString", "te:st")
self.assertEqual(a.pack(), b"test")
e.return_value = "3a:"
a = basictypes.build("SNIMPY-MIB", "snimpyString", "tes:t")
self.assertEqual(a.pack(), b"test")
e.return_value = "4a"
a = basictypes.build("SNIMPY-MIB", "snimpyString", "test")
self.assertEqual(a.pack(), b"test")
e.return_value = "2o+1a"
a = basictypes.build("SNIMPY-MIB", "snimpyString", "072145+st")
self.assertEqual(a.pack(), b"test")
e.return_value = "*2a:+255a"
a = basictypes.build(
"SNIMPY-MIB",
"snimpyString",
"te:st:te+st...")
self.assertEqual(a.pack(), b"\x03testtest...")
e.return_value = "2a1x:"
a = basictypes.build("SNIMPY-MIB", "snimpyString",
"aa74:65:73:74")
self.assertEqual(a.pack(), b"aatest")
e.return_value = "*2a+@1a:-*3a?="
a = basictypes.build("SNIMPY-MIB", "snimpyString",
"te+st+te+st@Z-tes?tes=tes?tes?tes")
self.assertEqual(a.pack(), b"\x04testtestZ\x02testes\x03testestes")
e.return_value = "3a"
a = basictypes.build("SNIMPY-MIB", "snimpyString",
"a\n\r")
self.assertEqual(a.pack(), b"a\n\r")
def testRepr(self):
"""Test representation"""
self.assertEqual(repr(basictypes.build("SNIMPY-MIB",
"snimpyInteger",
18)), "<Integer: 0.18>")
self.assertEqual(repr(basictypes.build("SNIMPY-MIB",
"snimpyObjectId",
(1, 3, 6, 1, 4, 1,
45, 3, 52, 1))),
"<Oid: 1.3.6.1.4.1.45.3.52.1>")
self.assertEqual(repr(basictypes.build("SNIMPY-MIB",
"snimpyIpAddress",
"124.24.14.3")),
"<IpAddress: 124.24.14.3>")
self.assertEqual(repr(basictypes.build("SNIMPY-MIB",
"snimpyString",
"45754dfgf")),
"<String: 45754dfgf>")
self.assertEqual(repr(basictypes.build("SNIMPY-MIB",
"snimpyEnum",
2)),
"<Enum: down(2)>")
self.assertEqual(repr(basictypes.build("SNIMPY-MIB",
"snimpyBoolean",
False)),
"<Boolean: false(2)>")
self.assertEqual(repr(basictypes.build("SNIMPY-MIB",
"snimpyCounter",
4547)),
"<Unsigned32: 4547>")
self.assertEqual(repr(basictypes.build("SNIMPY-MIB",
"snimpyBits",
["first", "second"])),
"<Bits: first(0), second(1)>")
def testEqualityWithDisplay(self):
"""Test we can check for equality with displayed form"""
a = basictypes.build("SNIMPY-MIB", "snimpyString", "test")
self.assertEqual(a, "test")
with mock.patch("snimpy.mib.Node.fmt",
new_callable=mock.PropertyMock) as e:
e.return_value = "255a"
a = basictypes.build("SNIMPY-MIB", "snimpyString", b"test")
self.assertEqual(a, "test")
e.return_value = "1x:"
a = basictypes.build("SNIMPY-MIB", "snimpyString", b"test")
self.assertEqual(a, "74:65:73:74")
e.return_value = "2a:"
a = basictypes.build("SNIMPY-MIB", "snimpyString", b"test")
self.assertEqual(a, "te:st")
e.return_value = "3a:"
a = basictypes.build("SNIMPY-MIB", "snimpyString", b"test")
self.assertEqual(a, "tes:t")
e.return_value = "4a"
a = basictypes.build("SNIMPY-MIB", "snimpyString", b"test")
self.assertEqual(a, "test")
e.return_value = "2o+1a"
a = basictypes.build("SNIMPY-MIB", "snimpyString", b"test")
self.assertEqual(a, "072145+st")
self.assertNotEqual(a, "072145+sta")
self.assertFalse(a != "072145+st")
e.return_value = "*2a:+255a"
a = basictypes.build("SNIMPY-MIB",
"snimpyString",
b"\x03testtest...")
self.assertEqual(a, "te:st:te+st...")
def testEqualityUnicode(self):
"""Test that equality works for both unicode and bytes"""
a = basictypes.build("SNIMPY-MIB", "snimpyString", "test")
self.assertEqual(a, "test")
a = basictypes.build("SNIMPY-MIB", "snimpyString", "test")
self.assertEqual(a, "test")
def testLikeAString(self):
"""Test String is like str"""
a = basictypes.build("SNIMPY-MIB",
"snimpyString",
"4521dgf")
self.assertTrue(a.startswith("4521"))
self.assertEqual(a.upper(), "4521DGF")
self.assertTrue(re.match("[0-9]+[defg]+", a))
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