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# 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): """ 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): """ 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): """ 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): """ 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): """ L{isIPAddress} should return C{False} for the empty string. """ self.assertFalse(isIPAddress("")) def test_invalidNegative(self): """ 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): """ 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): """ L{isIPAddress} evaluates ASCII-encoded bytes as well as text. """ self.assertFalse(isIPAddress(b"256.0.0.0")) self.assertFalse(isIPAddress("256.0.0.0")) self.assertTrue(isIPAddress(b"252.253.254.255")) self.assertTrue(isIPAddress("252.253.254.255")) def test_nonIPAddressFamily(self): """ 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): """ All IP addresses must be encodable as ASCII; non-ASCII should result in a L{False} result. """ self.assertFalse(isIPAddress(b"\xff.notascii")) self.assertFalse(isIPAddress("\u4321.notascii"))