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# Copyright (c) 2007 Twisted Matrix Laboratories.
# See LICENSE for details.
"""
Tests for generic file descriptor based reactor support code.
"""
from twisted.trial.unittest import TestCase
from twisted.internet.abstract import isIPAddress
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'))
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