| 1 | # Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
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| 2 | #
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| 3 | # Permission to use, copy, modify, and distribute this software and its
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| 4 | # documentation for any purpose with or without fee is hereby granted,
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| 5 | # provided that the above copyright notice and this permission notice
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| 6 | # appear in all copies.
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| 7 | #
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| 8 | # THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
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| 9 | # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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| 10 | # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
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| 11 | # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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| 12 | # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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| 13 | # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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| 14 | # OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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| 15 |
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| 16 | import unittest
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| 17 |
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| 18 | import dns.exception
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| 19 | import dns.tokenizer
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| 20 |
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| 21 | Token = dns.tokenizer.Token
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| 22 |
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| 23 | class TokenizerTestCase(unittest.TestCase):
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| 24 |
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| 25 | def testQuotedString1(self):
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| 26 | tok = dns.tokenizer.Tokenizer(r'"foo"')
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| 27 | token = tok.get()
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| 28 | self.failUnless(token == Token(dns.tokenizer.QUOTED_STRING, 'foo'))
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| 29 |
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| 30 | def testQuotedString2(self):
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| 31 | tok = dns.tokenizer.Tokenizer(r'""')
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| 32 | token = tok.get()
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| 33 | self.failUnless(token == Token(dns.tokenizer.QUOTED_STRING, ''))
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| 34 |
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| 35 | def testQuotedString3(self):
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| 36 | tok = dns.tokenizer.Tokenizer(r'"\"foo\""')
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| 37 | token = tok.get()
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| 38 | self.failUnless(token == Token(dns.tokenizer.QUOTED_STRING, '"foo"'))
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| 39 |
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| 40 | def testQuotedString4(self):
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| 41 | tok = dns.tokenizer.Tokenizer(r'"foo\010bar"')
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| 42 | token = tok.get()
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| 43 | self.failUnless(token == Token(dns.tokenizer.QUOTED_STRING, 'foo\x0abar'))
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| 44 |
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| 45 | def testQuotedString5(self):
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| 46 | def bad():
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| 47 | tok = dns.tokenizer.Tokenizer(r'"foo')
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| 48 | token = tok.get()
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| 49 | self.failUnlessRaises(dns.exception.UnexpectedEnd, bad)
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| 50 |
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| 51 | def testQuotedString6(self):
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| 52 | def bad():
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| 53 | tok = dns.tokenizer.Tokenizer(r'"foo\01')
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| 54 | token = tok.get()
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| 55 | self.failUnlessRaises(dns.exception.SyntaxError, bad)
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| 56 |
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| 57 | def testQuotedString7(self):
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| 58 | def bad():
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| 59 | tok = dns.tokenizer.Tokenizer('"foo\nbar"')
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| 60 | token = tok.get()
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| 61 | self.failUnlessRaises(dns.exception.SyntaxError, bad)
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| 62 |
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| 63 | def testEmpty1(self):
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| 64 | tok = dns.tokenizer.Tokenizer('')
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| 65 | token = tok.get()
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| 66 | self.failUnless(token.is_eof())
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| 67 |
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| 68 | def testEmpty2(self):
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| 69 | tok = dns.tokenizer.Tokenizer('')
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| 70 | token1 = tok.get()
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| 71 | token2 = tok.get()
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| 72 | self.failUnless(token1.is_eof() and token2.is_eof())
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| 73 |
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| 74 | def testEOL(self):
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| 75 | tok = dns.tokenizer.Tokenizer('\n')
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| 76 | token1 = tok.get()
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| 77 | token2 = tok.get()
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| 78 | self.failUnless(token1.is_eol() and token2.is_eof())
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| 79 |
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| 80 | def testWS1(self):
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| 81 | tok = dns.tokenizer.Tokenizer(' \n')
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| 82 | token1 = tok.get()
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| 83 | self.failUnless(token1.is_eol())
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| 84 |
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| 85 | def testWS2(self):
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| 86 | tok = dns.tokenizer.Tokenizer(' \n')
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| 87 | token1 = tok.get(want_leading=True)
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| 88 | self.failUnless(token1.is_whitespace())
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| 89 |
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| 90 | def testComment1(self):
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| 91 | tok = dns.tokenizer.Tokenizer(' ;foo\n')
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| 92 | token1 = tok.get()
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| 93 | self.failUnless(token1.is_eol())
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| 94 |
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| 95 | def testComment2(self):
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| 96 | tok = dns.tokenizer.Tokenizer(' ;foo\n')
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| 97 | token1 = tok.get(want_comment = True)
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| 98 | token2 = tok.get()
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| 99 | self.failUnless(token1 == Token(dns.tokenizer.COMMENT, 'foo') and
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| 100 | token2.is_eol())
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| 101 |
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| 102 | def testComment3(self):
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| 103 | tok = dns.tokenizer.Tokenizer(' ;foo bar\n')
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| 104 | token1 = tok.get(want_comment = True)
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| 105 | token2 = tok.get()
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| 106 | self.failUnless(token1 == Token(dns.tokenizer.COMMENT, 'foo bar') and
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| 107 | token2.is_eol())
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| 108 |
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| 109 | def testMultiline1(self):
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| 110 | tok = dns.tokenizer.Tokenizer('( foo\n\n bar\n)')
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| 111 | tokens = list(iter(tok))
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| 112 | self.failUnless(tokens == [Token(dns.tokenizer.IDENTIFIER, 'foo'),
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| 113 | Token(dns.tokenizer.IDENTIFIER, 'bar')])
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| 114 |
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| 115 | def testMultiline2(self):
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| 116 | tok = dns.tokenizer.Tokenizer('( foo\n\n bar\n)\n')
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| 117 | tokens = list(iter(tok))
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| 118 | self.failUnless(tokens == [Token(dns.tokenizer.IDENTIFIER, 'foo'),
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| 119 | Token(dns.tokenizer.IDENTIFIER, 'bar'),
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| 120 | Token(dns.tokenizer.EOL, '\n')])
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| 121 | def testMultiline3(self):
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| 122 | def bad():
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| 123 | tok = dns.tokenizer.Tokenizer('foo)')
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| 124 | tokens = list(iter(tok))
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| 125 | self.failUnlessRaises(dns.exception.SyntaxError, bad)
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| 126 |
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| 127 | def testMultiline4(self):
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| 128 | def bad():
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| 129 | tok = dns.tokenizer.Tokenizer('((foo)')
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| 130 | tokens = list(iter(tok))
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| 131 | self.failUnlessRaises(dns.exception.SyntaxError, bad)
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| 132 |
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| 133 | def testUnget1(self):
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| 134 | tok = dns.tokenizer.Tokenizer('foo')
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| 135 | t1 = tok.get()
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| 136 | tok.unget(t1)
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| 137 | t2 = tok.get()
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| 138 | self.failUnless(t1 == t2 and t1.ttype == dns.tokenizer.IDENTIFIER and \
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| 139 | t1.value == 'foo')
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| 140 |
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| 141 | def testUnget2(self):
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| 142 | def bad():
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| 143 | tok = dns.tokenizer.Tokenizer('foo')
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| 144 | t1 = tok.get()
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| 145 | tok.unget(t1)
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| 146 | tok.unget(t1)
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| 147 | self.failUnlessRaises(dns.tokenizer.UngetBufferFull, bad)
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| 148 |
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| 149 | def testGetEOL1(self):
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| 150 | tok = dns.tokenizer.Tokenizer('\n')
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| 151 | t = tok.get_eol()
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| 152 | self.failUnless(t == '\n')
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| 153 |
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| 154 | def testGetEOL2(self):
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| 155 | tok = dns.tokenizer.Tokenizer('')
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| 156 | t = tok.get_eol()
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| 157 | self.failUnless(t == '')
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| 158 |
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| 159 | def testEscapedDelimiter1(self):
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| 160 | tok = dns.tokenizer.Tokenizer(r'ch\ ld')
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| 161 | t = tok.get()
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| 162 | self.failUnless(t.ttype == dns.tokenizer.IDENTIFIER and t.value == r'ch\ ld')
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| 163 |
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| 164 | def testEscapedDelimiter2(self):
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| 165 | tok = dns.tokenizer.Tokenizer(r'ch\032ld')
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| 166 | t = tok.get()
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| 167 | self.failUnless(t.ttype == dns.tokenizer.IDENTIFIER and t.value == r'ch\032ld')
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| 168 |
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| 169 | def testEscapedDelimiter3(self):
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| 170 | tok = dns.tokenizer.Tokenizer(r'ch\ild')
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| 171 | t = tok.get()
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| 172 | self.failUnless(t.ttype == dns.tokenizer.IDENTIFIER and t.value == r'ch\ild')
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| 173 |
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| 174 | def testEscapedDelimiter1u(self):
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| 175 | tok = dns.tokenizer.Tokenizer(r'ch\ ld')
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| 176 | t = tok.get().unescape()
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| 177 | self.failUnless(t.ttype == dns.tokenizer.IDENTIFIER and t.value == r'ch ld')
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| 178 |
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| 179 | def testEscapedDelimiter2u(self):
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| 180 | tok = dns.tokenizer.Tokenizer(r'ch\032ld')
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| 181 | t = tok.get().unescape()
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| 182 | self.failUnless(t.ttype == dns.tokenizer.IDENTIFIER and t.value == 'ch ld')
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| 183 |
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| 184 | def testEscapedDelimiter3u(self):
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| 185 | tok = dns.tokenizer.Tokenizer(r'ch\ild')
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| 186 | t = tok.get().unescape()
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| 187 | self.failUnless(t.ttype == dns.tokenizer.IDENTIFIER and t.value == r'child')
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| 188 |
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| 189 | if __name__ == '__main__':
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| 190 | unittest.main()
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