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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 rrclass part of the pydnspp module  
#  
  
import unittest  
import os  
from pydnspp import *  
  
class RRClassTest(unittest.TestCase):  
    def setUp(self):  
        self.c1 = RRClass.IN()  
        self.c2 = RRClass.CH()  
  
    def test_init(self):  
        self.assertRaises(InvalidRRClass, RRClass, "wrong")  
        self.assertRaises(TypeError, RRClass, Exception())  
        b = bytearray(1)  
        b[0] = 123  
        self.assertRaises(TypeError, RRClass, b)  
        self.assertEqual(self.c1, RRClass(1))  
        b = bytearray()  
        self.c1.to_wire(b)  
        self.assertEqual(self.c1, RRClass(b))  
        # Range check.  We need to do this at the binding level, so we need  
        # explicit tests for it.  
        self.assertRaises(ValueError, RRClass, 65536)  
        self.assertRaises(TypeError, RRClass, -1)  
        self.assertEqual(RRClass(65535).get_code(), 65535)  
        self.assertEqual(RRClass(0).get_code(), 0)  
  
    def test_rrclass_to_text(self):  
        self.assertEqual("IN", self.c1.to_text())  
        self.assertEqual("IN", str(self.c1))  
        self.assertEqual("CH", self.c2.to_text())  
  
    def test_rrclass_to_wire(self):  
        b = bytearray()  
        self.c1.to_wire(b)  
        self.assertEqual(b'\x00\x01', b)  
        b = bytearray()  
        self.c2.to_wire(b)  
        self.assertEqual(b'\x00\x03', b)  
  
        mr = MessageRenderer()  
        self.c1.to_wire(mr)  
        self.assertEqual(b'\x00\x01', mr.get_data())  
  
        self.assertRaises(TypeError, self.c1.to_wire, "wrong")  
  
    def test_richcmp(self):  
        self.assertTrue(self.c1 != self.c2)  
        self.assertTrue(self.c1 < self.c2)  
        self.assertTrue(self.c1 <= self.c2)  
        self.assertFalse(self.c1 > self.c2)  
        self.assertFalse(self.c1 >= self.c2)  
        other_rrclass = RRClass("IN")  
        self.assertTrue(self.c1 == other_rrclass)  
  
        self.assertFalse(self.c1 == self.c2)  
        self.assertFalse(self.c1 > self.c2)  
        self.assertFalse(self.c1 >= self.c2)  
        self.assertTrue(self.c1 < self.c2)  
        self.assertTrue(self.c1 <= self.c2)  
        self.assertFalse(self.c1 != other_rrclass)  
  
    def test_statics(self):  
        self.assertEqual(RRClass.IN(), RRClass("IN"))  
        self.assertEqual(RRClass.CH(), RRClass("CH"))  
        self.assertEqual(RRClass.HS(), RRClass("HS"))  
        self.assertEqual(254, RRClass.NONE().get_code())  
        self.assertEqual(255, RRClass.ANY().get_code())  
  
exitif __name__ == '__main__':  
    unittest.main()  
                
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