Mercurial > repos > shellac > guppy_basecaller

annotate env/lib/python3.7/site-packages/webencodings/tests.py @ 3:758bc20232e8 draft

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
"planemo upload commit 2a0fe2cc28b09e101d37293e53e82f61762262ec"
author shellac
date Thu, 14 May 2020 16:20:52 -0400
parents 26e78fe6e8c4
children
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0
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1 # coding: utf-8
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2 """
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3
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4 webencodings.tests
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5 ~~~~~~~~~~~~~~~~~~
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6
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7 A basic test suite for Encoding.
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8
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9 :copyright: Copyright 2012 by Simon Sapin
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10 :license: BSD, see LICENSE for details.
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11
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12 """
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13
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14 from __future__ import unicode_literals
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15
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16 from . import (lookup, LABELS, decode, encode, iter_decode, iter_encode,
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17 IncrementalDecoder, IncrementalEncoder, UTF8)
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18
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19
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20 def assert_raises(exception, function, *args, **kwargs):
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21 try:
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22 function(*args, **kwargs)
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23 except exception:
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24 return
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25 else: # pragma: no cover
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26 raise AssertionError('Did not raise %s.' % exception)
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27
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28
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29 def test_labels():
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30 assert lookup('utf-8').name == 'utf-8'
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31 assert lookup('Utf-8').name == 'utf-8'
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32 assert lookup('UTF-8').name == 'utf-8'
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33 assert lookup('utf8').name == 'utf-8'
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34 assert lookup('utf8').name == 'utf-8'
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35 assert lookup('utf8 ').name == 'utf-8'
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36 assert lookup(' \r\nutf8\t').name == 'utf-8'
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37 assert lookup('u8') is None # Python label.
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38 assert lookup('utf-8 ') is None # Non-ASCII white space.
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39
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40 assert lookup('US-ASCII').name == 'windows-1252'
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41 assert lookup('iso-8859-1').name == 'windows-1252'
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42 assert lookup('latin1').name == 'windows-1252'
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43 assert lookup('LATIN1').name == 'windows-1252'
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44 assert lookup('latin-1') is None
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45 assert lookup('LATİN1') is None # ASCII-only case insensitivity.
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46
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47
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48 def test_all_labels():
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49 for label in LABELS:
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50 assert decode(b'', label) == ('', lookup(label))
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51 assert encode('', label) == b''
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52 for repeat in [0, 1, 12]:
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53 output, _ = iter_decode([b''] * repeat, label)
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54 assert list(output) == []
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55 assert list(iter_encode([''] * repeat, label)) == []
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56 decoder = IncrementalDecoder(label)
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57 assert decoder.decode(b'') == ''
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58 assert decoder.decode(b'', final=True) == ''
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59 encoder = IncrementalEncoder(label)
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60 assert encoder.encode('') == b''
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61 assert encoder.encode('', final=True) == b''
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62 # All encoding names are valid labels too:
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63 for name in set(LABELS.values()):
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64 assert lookup(name).name == name
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65
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66
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67 def test_invalid_label():
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68 assert_raises(LookupError, decode, b'\xEF\xBB\xBF\xc3\xa9', 'invalid')
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69 assert_raises(LookupError, encode, 'é', 'invalid')
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70 assert_raises(LookupError, iter_decode, [], 'invalid')
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71 assert_raises(LookupError, iter_encode, [], 'invalid')
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72 assert_raises(LookupError, IncrementalDecoder, 'invalid')
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73 assert_raises(LookupError, IncrementalEncoder, 'invalid')
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74
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75
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76 def test_decode():
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77 assert decode(b'\x80', 'latin1') == ('€', lookup('latin1'))
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78 assert decode(b'\x80', lookup('latin1')) == ('€', lookup('latin1'))
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79 assert decode(b'\xc3\xa9', 'utf8') == ('é', lookup('utf8'))
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80 assert decode(b'\xc3\xa9', UTF8) == ('é', lookup('utf8'))
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81 assert decode(b'\xc3\xa9', 'ascii') == ('é', lookup('ascii'))
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82 assert decode(b'\xEF\xBB\xBF\xc3\xa9', 'ascii') == ('é', lookup('utf8')) # UTF-8 with BOM
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83
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84 assert decode(b'\xFE\xFF\x00\xe9', 'ascii') == ('é', lookup('utf-16be')) # UTF-16-BE with BOM
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85 assert decode(b'\xFF\xFE\xe9\x00', 'ascii') == ('é', lookup('utf-16le')) # UTF-16-LE with BOM
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86 assert decode(b'\xFE\xFF\xe9\x00', 'ascii') == ('\ue900', lookup('utf-16be'))
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87 assert decode(b'\xFF\xFE\x00\xe9', 'ascii') == ('\ue900', lookup('utf-16le'))
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88
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89 assert decode(b'\x00\xe9', 'UTF-16BE') == ('é', lookup('utf-16be'))
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90 assert decode(b'\xe9\x00', 'UTF-16LE') == ('é', lookup('utf-16le'))
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91 assert decode(b'\xe9\x00', 'UTF-16') == ('é', lookup('utf-16le'))
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92
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93 assert decode(b'\xe9\x00', 'UTF-16BE') == ('\ue900', lookup('utf-16be'))
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94 assert decode(b'\x00\xe9', 'UTF-16LE') == ('\ue900', lookup('utf-16le'))
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95 assert decode(b'\x00\xe9', 'UTF-16') == ('\ue900', lookup('utf-16le'))
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96
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97
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98 def test_encode():
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99 assert encode('é', 'latin1') == b'\xe9'
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100 assert encode('é', 'utf8') == b'\xc3\xa9'
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101 assert encode('é', 'utf8') == b'\xc3\xa9'
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102 assert encode('é', 'utf-16') == b'\xe9\x00'
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103 assert encode('é', 'utf-16le') == b'\xe9\x00'
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104 assert encode('é', 'utf-16be') == b'\x00\xe9'
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105
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106
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107 def test_iter_decode():
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108 def iter_decode_to_string(input, fallback_encoding):
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109 output, _encoding = iter_decode(input, fallback_encoding)
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110 return ''.join(output)
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111 assert iter_decode_to_string([], 'latin1') == ''
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112 assert iter_decode_to_string([b''], 'latin1') == ''
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113 assert iter_decode_to_string([b'\xe9'], 'latin1') == 'é'
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114 assert iter_decode_to_string([b'hello'], 'latin1') == 'hello'
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115 assert iter_decode_to_string([b'he', b'llo'], 'latin1') == 'hello'
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116 assert iter_decode_to_string([b'hell', b'o'], 'latin1') == 'hello'
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117 assert iter_decode_to_string([b'\xc3\xa9'], 'latin1') == 'é'
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118 assert iter_decode_to_string([b'\xEF\xBB\xBF\xc3\xa9'], 'latin1') == 'é'
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119 assert iter_decode_to_string([
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120 b'\xEF\xBB\xBF', b'\xc3', b'\xa9'], 'latin1') == 'é'
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121 assert iter_decode_to_string([
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122 b'\xEF\xBB\xBF', b'a', b'\xc3'], 'latin1') == 'a\uFFFD'
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123 assert iter_decode_to_string([
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124 b'', b'\xEF', b'', b'', b'\xBB\xBF\xc3', b'\xa9'], 'latin1') == 'é'
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125 assert iter_decode_to_string([b'\xEF\xBB\xBF'], 'latin1') == ''
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126 assert iter_decode_to_string([b'\xEF\xBB'], 'latin1') == 'ï»'
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127 assert iter_decode_to_string([b'\xFE\xFF\x00\xe9'], 'latin1') == 'é'
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128 assert iter_decode_to_string([b'\xFF\xFE\xe9\x00'], 'latin1') == 'é'
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129 assert iter_decode_to_string([
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130 b'', b'\xFF', b'', b'', b'\xFE\xe9', b'\x00'], 'latin1') == 'é'
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131 assert iter_decode_to_string([
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132 b'', b'h\xe9', b'llo'], 'x-user-defined') == 'h\uF7E9llo'
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133
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134
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135 def test_iter_encode():
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136 assert b''.join(iter_encode([], 'latin1')) == b''
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137 assert b''.join(iter_encode([''], 'latin1')) == b''
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138 assert b''.join(iter_encode(['é'], 'latin1')) == b'\xe9'
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139 assert b''.join(iter_encode(['', 'é', '', ''], 'latin1')) == b'\xe9'
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140 assert b''.join(iter_encode(['', 'é', '', ''], 'utf-16')) == b'\xe9\x00'
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141 assert b''.join(iter_encode(['', 'é', '', ''], 'utf-16le')) == b'\xe9\x00'
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142 assert b''.join(iter_encode(['', 'é', '', ''], 'utf-16be')) == b'\x00\xe9'
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143 assert b''.join(iter_encode([
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144 '', 'h\uF7E9', '', 'llo'], 'x-user-defined')) == b'h\xe9llo'
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145
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146
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147 def test_x_user_defined():
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148 encoded = b'2,\x0c\x0b\x1aO\xd9#\xcb\x0f\xc9\xbbt\xcf\xa8\xca'
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149 decoded = '2,\x0c\x0b\x1aO\uf7d9#\uf7cb\x0f\uf7c9\uf7bbt\uf7cf\uf7a8\uf7ca'
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150 encoded = b'aa'
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151 decoded = 'aa'
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152 assert decode(encoded, 'x-user-defined') == (decoded, lookup('x-user-defined'))
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153 assert encode(decoded, 'x-user-defined') == encoded