Current File : //lib/python3/dist-packages/twisted/test/test_abstract.py
# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.
"""
Tests for generic file descriptor based reactor support code.
"""
from socket import AF_IPX
from twisted.internet.abstract import isIPAddress
from twisted.trial.unittest import TestCase
class AddressTests(TestCase):
"""
Tests for address-related functionality.
"""
def test_decimalDotted(self) -> None:
"""
L{isIPAddress} should return C{True} for any decimal dotted
representation of an IPv4 address.
"""
self.assertTrue(isIPAddress("0.1.2.3"))
self.assertTrue(isIPAddress("252.253.254.255"))
def test_shortDecimalDotted(self) -> None:
"""
L{isIPAddress} should return C{False} for a dotted decimal
representation with fewer or more than four octets.
"""
self.assertFalse(isIPAddress("0"))
self.assertFalse(isIPAddress("0.1"))
self.assertFalse(isIPAddress("0.1.2"))
self.assertFalse(isIPAddress("0.1.2.3.4"))
def test_invalidLetters(self) -> None:
"""
L{isIPAddress} should return C{False} for any non-decimal dotted
representation including letters.
"""
self.assertFalse(isIPAddress("a.2.3.4"))
self.assertFalse(isIPAddress("1.b.3.4"))
def test_invalidPunctuation(self) -> None:
"""
L{isIPAddress} should return C{False} for a string containing
strange punctuation.
"""
self.assertFalse(isIPAddress(","))
self.assertFalse(isIPAddress("1,2"))
self.assertFalse(isIPAddress("1,2,3"))
self.assertFalse(isIPAddress("1.,.3,4"))
def test_emptyString(self) -> None:
"""
L{isIPAddress} should return C{False} for the empty string.
"""
self.assertFalse(isIPAddress(""))
def test_invalidNegative(self) -> None:
"""
L{isIPAddress} should return C{False} for negative decimal values.
"""
self.assertFalse(isIPAddress("-1"))
self.assertFalse(isIPAddress("1.-2"))
self.assertFalse(isIPAddress("1.2.-3"))
self.assertFalse(isIPAddress("1.2.-3.4"))
def test_invalidPositive(self) -> None:
"""
L{isIPAddress} should return C{False} for a string containing
positive decimal values greater than 255.
"""
self.assertFalse(isIPAddress("256.0.0.0"))
self.assertFalse(isIPAddress("0.256.0.0"))
self.assertFalse(isIPAddress("0.0.256.0"))
self.assertFalse(isIPAddress("0.0.0.256"))
self.assertFalse(isIPAddress("256.256.256.256"))
def test_unicodeAndBytes(self) -> None:
"""
L{isIPAddress} evaluates ASCII-encoded bytes as well as text.
"""
# we test passing bytes but don't support bytes in the type annotation
self.assertFalse(isIPAddress(b"256.0.0.0")) # type: ignore[arg-type]
self.assertFalse(isIPAddress("256.0.0.0"))
self.assertTrue(isIPAddress(b"252.253.254.255")) # type: ignore[arg-type]
self.assertTrue(isIPAddress("252.253.254.255"))
def test_nonIPAddressFamily(self) -> None:
"""
All address families other than C{AF_INET} and C{AF_INET6} result in a
L{ValueError} being raised.
"""
self.assertRaises(ValueError, isIPAddress, b"anything", AF_IPX)
def test_nonASCII(self) -> None:
"""
All IP addresses must be encodable as ASCII; non-ASCII should result in
a L{False} result.
"""
# we test passing bytes but don't support bytes in the type annotation
self.assertFalse(isIPAddress(b"\xff.notascii")) # type: ignore[arg-type]
self.assertFalse(isIPAddress("\u4321.notascii"))
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