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