Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_source_encoding.py @ 86127:a3d09c19bb93

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merge with 3.3
author Georg Brandl <georg@python.org>
date Sun, 06 Oct 2013 19:24:00 +0200
parents 29e7f6a2dc0d
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 # -*- coding: koi8-r -*-
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2
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3 import unittest
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4 from test.support import TESTFN, unlink, unload
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5 import importlib
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6 import os
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7 import sys
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8
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9 class SourceEncodingTest(unittest.TestCase):
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10
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11 def test_pep263(self):
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12 self.assertEqual(
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13 "ðÉÔÏÎ".encode("utf-8"),
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14 b'\xd0\x9f\xd0\xb8\xd1\x82\xd0\xbe\xd0\xbd'
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15 )
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16 self.assertEqual(
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17 "\ð".encode("utf-8"),
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18 b'\\\xd0\x9f'
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19 )
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20
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21 def test_compilestring(self):
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22 # see #1882
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23 c = compile(b"\n# coding: utf-8\nu = '\xc3\xb3'\n", "dummy", "exec")
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24 d = {}
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25 exec(c, d)
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26 self.assertEqual(d['u'], '\xf3')
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27
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28 def test_issue2301(self):
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29 try:
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30 compile(b"# coding: cp932\nprint '\x94\x4e'", "dummy", "exec")
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31 except SyntaxError as v:
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32 self.assertEqual(v.text, "print '\u5e74'\n")
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33 else:
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34 self.fail()
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35
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36 def test_issue4626(self):
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37 c = compile("# coding=latin-1\n\u00c6 = '\u00c6'", "dummy", "exec")
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38 d = {}
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39 exec(c, d)
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40 self.assertEqual(d['\xc6'], '\xc6')
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41
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42 def test_issue3297(self):
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43 c = compile("a, b = '\U0001010F', '\\U0001010F'", "dummy", "exec")
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44 d = {}
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45 exec(c, d)
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46 self.assertEqual(d['a'], d['b'])
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47 self.assertEqual(len(d['a']), len(d['b']))
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48 self.assertEqual(ascii(d['a']), ascii(d['b']))
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49
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50 def test_issue7820(self):
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51 # Ensure that check_bom() restores all bytes in the right order if
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52 # check_bom() fails in pydebug mode: a buffer starts with the first
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53 # byte of a valid BOM, but next bytes are different
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54
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55 # one byte in common with the UTF-16-LE BOM
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56 self.assertRaises(SyntaxError, eval, b'\xff\x20')
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57
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58 # two bytes in common with the UTF-8 BOM
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59 self.assertRaises(SyntaxError, eval, b'\xef\xbb\x20')
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60
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61 def test_error_message(self):
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62 compile(b'# -*- coding: iso-8859-15 -*-\n', 'dummy', 'exec')
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63 compile(b'\xef\xbb\xbf\n', 'dummy', 'exec')
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64 compile(b'\xef\xbb\xbf# -*- coding: utf-8 -*-\n', 'dummy', 'exec')
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65 with self.assertRaisesRegex(SyntaxError, 'fake'):
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66 compile(b'# -*- coding: fake -*-\n', 'dummy', 'exec')
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67 with self.assertRaisesRegex(SyntaxError, 'iso-8859-15'):
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68 compile(b'\xef\xbb\xbf# -*- coding: iso-8859-15 -*-\n',
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69 'dummy', 'exec')
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70 with self.assertRaisesRegex(SyntaxError, 'BOM'):
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71 compile(b'\xef\xbb\xbf# -*- coding: iso-8859-15 -*-\n',
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72 'dummy', 'exec')
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73 with self.assertRaisesRegex(SyntaxError, 'fake'):
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74 compile(b'\xef\xbb\xbf# -*- coding: fake -*-\n', 'dummy', 'exec')
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75 with self.assertRaisesRegex(SyntaxError, 'BOM'):
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76 compile(b'\xef\xbb\xbf# -*- coding: fake -*-\n', 'dummy', 'exec')
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77
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78 def test_bad_coding(self):
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79 module_name = 'bad_coding'
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80 self.verify_bad_module(module_name)
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81
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82 def test_bad_coding2(self):
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83 module_name = 'bad_coding2'
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84 self.verify_bad_module(module_name)
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85
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86 def verify_bad_module(self, module_name):
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87 self.assertRaises(SyntaxError, __import__, 'test.' + module_name)
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88
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89 path = os.path.dirname(__file__)
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90 filename = os.path.join(path, module_name + '.py')
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91 with open(filename, "rb") as fp:
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92 bytes = fp.read()
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93 self.assertRaises(SyntaxError, compile, bytes, filename, 'exec')
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94
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95 def test_exec_valid_coding(self):
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96 d = {}
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97 exec(b'# coding: cp949\na = "\xaa\xa7"\n', d)
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98 self.assertEqual(d['a'], '\u3047')
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99
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100 def test_file_parse(self):
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101 # issue1134: all encodings outside latin-1 and utf-8 fail on
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102 # multiline strings and long lines (>512 columns)
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103 unload(TESTFN)
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104 filename = TESTFN + ".py"
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105 f = open(filename, "w", encoding="cp1252")
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106 sys.path.insert(0, os.curdir)
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107 try:
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108 with f:
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109 f.write("# -*- coding: cp1252 -*-\n")
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110 f.write("'''A short string\n")
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111 f.write("'''\n")
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112 f.write("'A very long string %s'\n" % ("X" * 1000))
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113
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114 importlib.invalidate_caches()
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115 __import__(TESTFN)
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116 finally:
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117 del sys.path[0]
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118 unlink(filename)
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119 unlink(filename + "c")
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120 unlink(filename + "o")
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121 unload(TESTFN)
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122
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123 def test_error_from_string(self):
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124 # See http://bugs.python.org/issue6289
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125 input = "# coding: ascii\n\N{SNOWMAN}".encode('utf-8')
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126 with self.assertRaises(SyntaxError) as c:
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127 compile(input, "<string>", "exec")
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128 expected = "'ascii' codec can't decode byte 0xe2 in position 16: " \
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129 "ordinal not in range(128)"
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130 self.assertTrue(c.exception.args[0].startswith(expected),
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131 msg=c.exception.args[0])
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132
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133
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134 if __name__ == "__main__":
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135 unittest.main()