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 # Copyright (C) 2010  Internet Systems Consortium.  
#  
# Permission to use, copy, modify, and distribute this software for any  
# purpose with or without fee is hereby granted, provided that the above  
# copyright notice and this permission notice appear in all copies.  
#  
# THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SYSTEMS CONSORTIUM  
# DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL  
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL  
# INTERNET SYSTEMS CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,  
# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING  
# FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,  
# NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION  
# WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.  
  
#  
# Tests for the rdata part of the pydnspp module  
#  
  
import unittest  
import os  
from pydnspp import *  
  
class RdataTest(unittest.TestCase):  
    def setUp(self):  
        c = RRClass("IN")  
        t = RRType("A")  
        self.rdata1 = Rdata(t, c, "192.0.2.98")  
        self.rdata2 = Rdata(t, c, "192.0.2.99")  
        t = RRType("TXT")  
        self.rdata3 = Rdata(t, c, "asdfasdfasdf")  
        self.rdata4 = Rdata(t, c, "foo")  
  
    def test_init(self):  
        self.assertRaises(TypeError, Rdata, "wrong", RRClass("IN"), "192.0.2.99")  
        self.assertRaises(TypeError, Rdata, RRType("A"), "wrong", "192.0.2.99")  
        self.assertRaises(TypeError, Rdata, RRType("A"), RRClass("IN"), 1)  
        self.assertRaises(InvalidRdataText, Rdata, RRType("A"), RRClass("IN"),  
                          "Invalid Rdata Text")  
        self.assertRaises(CharStringTooLong, Rdata, RRType("TXT"),  
                          RRClass("IN"), ' ' * 256)  
        self.assertRaises(InvalidRdataLength, Rdata, RRType("TXT"),  
                          RRClass("IN"), bytes(65536))  
        self.assertRaises(DNSMessageFORMERR, Rdata, RRType("TXT"),  
                          RRClass("IN"), b"\xff")  
  
    def test_rdata_to_wire(self):  
        b = bytearray()  
        self.rdata1.to_wire(b)  
        self.assertEqual(b'\xc0\x00\x02b', b)  
        b = bytearray()  
        self.rdata2.to_wire(b)  
        self.assertEqual(b'\xc0\x00\x02c', b)  
        b = bytearray()  
        self.rdata3.to_wire(b)  
        self.assertEqual(b'\x0casdfasdfasdf', b)  
        b = bytearray()  
        self.rdata4.to_wire(b)  
        self.assertEqual(b'\x03foo', b)  
        self.assertRaises(TypeError, self.rdata1.to_wire, 1)  
  
        renderer = MessageRenderer()  
        self.rdata1.to_wire(renderer)  
        self.assertEqual(b'\xc0\x00\x02b', renderer.get_data())  
  
        renderer = MessageRenderer()  
        self.rdata3.to_wire(renderer)  
        self.assertEqual(b'\x0casdfasdfasdf', renderer.get_data())  
  
    def test_rdata_to_text(self):  
        self.assertEqual("192.0.2.98", self.rdata1.to_text())  
        self.assertEqual("192.0.2.99", self.rdata2.to_text())  
        self.assertEqual("\"asdfasdfasdf\"", self.rdata3.to_text())  
        self.assertEqual("\"foo\"", self.rdata4.to_text())  
        self.assertEqual("\"foo\"", str(self.rdata4))  
  
    def test_richcmp(self):  
        self.assertTrue(self.rdata1 < self.rdata2);  
        self.assertTrue(self.rdata1 <= self.rdata2);  
        self.assertFalse(self.rdata1 > self.rdata2);  
        self.assertFalse(self.rdata1 >= self.rdata2);  
        self.assertTrue(self.rdata3 != self.rdata4)  
        other_rdata = Rdata(RRType("TXT"), RRClass("IN"), "foo")  
        self.assertTrue(self.rdata4 == other_rdata)  
  
        self.assertFalse(self.rdata1 > self.rdata2);  
        self.assertFalse(self.rdata1 >= self.rdata2);  
        self.assertTrue(self.rdata1 < self.rdata2);  
        self.assertTrue(self.rdata1 <= self.rdata2);  
        self.assertFalse(self.rdata3 == self.rdata4)  
        self.assertFalse(self.rdata4 != other_rdata)  
  
  
exitif __name__ == '__main__':  
    unittest.main()  
                
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