Mercurial > cpython-lru_cache-weakref
annotate Lib/test/test_bytes.py @ 80661:94de77bd0b4b 2.7
Issue #16194: document imp.load_dynamic problems
when read several extension modules from the same binary object file.
| author | Andrew Svetlov <andrew.svetlov@gmail.com> |
|---|---|
| date | Thu, 29 Nov 2012 19:51:28 +0200 |
| parents | 1bd2b272c568 |
| children | 523f309cf558 |
| rev | line source |
|---|---|
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1 """Unit tests for the bytes and bytearray types. |
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2 |
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3 XXX This is a mess. Common tests should be moved to buffer_tests.py, |
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4 which itself ought to be unified with string_tests.py (and the latter |
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5 should be modernized). |
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6 """ |
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7 |
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8 import os |
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9 import re |
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10 import sys |
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11 import copy |
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12 import functools |
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13 import pickle |
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14 import tempfile |
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15 import unittest |
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16 import test.test_support |
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17 import test.string_tests |
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18 import test.buffer_tests |
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19 |
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20 |
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21 if sys.flags.bytes_warning: |
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22 def check_bytes_warnings(func): |
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23 @functools.wraps(func) |
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24 def wrapper(*args, **kw): |
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25 with test.test_support.check_warnings(('', BytesWarning)): |
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26 return func(*args, **kw) |
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27 return wrapper |
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28 else: |
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29 # no-op |
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30 def check_bytes_warnings(func): |
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31 return func |
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32 |
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33 |
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34 class Indexable: |
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35 def __init__(self, value=0): |
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36 self.value = value |
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37 def __index__(self): |
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38 return self.value |
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39 |
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40 |
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41 class BaseBytesTest(unittest.TestCase): |
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42 |
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43 def test_basics(self): |
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44 b = self.type2test() |
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45 self.assertEqual(type(b), self.type2test) |
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46 self.assertEqual(b.__class__, self.type2test) |
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47 |
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48 def test_empty_sequence(self): |
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49 b = self.type2test() |
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50 self.assertEqual(len(b), 0) |
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51 self.assertRaises(IndexError, lambda: b[0]) |
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52 self.assertRaises(IndexError, lambda: b[1]) |
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53 self.assertRaises(IndexError, lambda: b[sys.maxint]) |
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54 self.assertRaises(IndexError, lambda: b[sys.maxint+1]) |
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55 self.assertRaises(IndexError, lambda: b[10**100]) |
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56 self.assertRaises(IndexError, lambda: b[-1]) |
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57 self.assertRaises(IndexError, lambda: b[-2]) |
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58 self.assertRaises(IndexError, lambda: b[-sys.maxint]) |
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59 self.assertRaises(IndexError, lambda: b[-sys.maxint-1]) |
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60 self.assertRaises(IndexError, lambda: b[-sys.maxint-2]) |
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61 self.assertRaises(IndexError, lambda: b[-10**100]) |
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62 |
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63 def test_from_list(self): |
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64 ints = list(range(256)) |
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65 b = self.type2test(i for i in ints) |
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66 self.assertEqual(len(b), 256) |
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67 self.assertEqual(list(b), ints) |
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68 |
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69 def test_from_index(self): |
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70 b = self.type2test([Indexable(), Indexable(1), Indexable(254), |
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71 Indexable(255)]) |
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72 self.assertEqual(list(b), [0, 1, 254, 255]) |
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73 self.assertRaises(ValueError, self.type2test, [Indexable(-1)]) |
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74 self.assertRaises(ValueError, self.type2test, [Indexable(256)]) |
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76 def test_from_ssize(self): |
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77 self.assertEqual(self.type2test(0), b'') |
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78 self.assertEqual(self.type2test(1), b'\x00') |
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79 self.assertEqual(self.type2test(5), b'\x00\x00\x00\x00\x00') |
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80 self.assertRaises(ValueError, self.type2test, -1) |
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82 self.assertEqual(self.type2test('0', 'ascii'), b'0') |
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83 self.assertEqual(self.type2test(b'0'), b'0') |
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84 self.assertRaises(OverflowError, self.type2test, sys.maxsize + 1) |
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86 def test_constructor_type_errors(self): |
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87 self.assertRaises(TypeError, self.type2test, 0.0) |
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88 class C: |
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89 pass |
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90 # allowed in 2.x |
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91 #self.assertRaises(TypeError, self.type2test, ["0"]) |
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92 self.assertRaises(TypeError, self.type2test, [0.0]) |
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93 self.assertRaises(TypeError, self.type2test, [None]) |
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94 self.assertRaises(TypeError, self.type2test, [C()]) |
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96 def test_constructor_value_errors(self): |
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97 self.assertRaises(ValueError, self.type2test, [-1]) |
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98 self.assertRaises(ValueError, self.type2test, [-sys.maxint]) |
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99 self.assertRaises(ValueError, self.type2test, [-sys.maxint-1]) |
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100 self.assertRaises(ValueError, self.type2test, [-sys.maxint-2]) |
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101 self.assertRaises(ValueError, self.type2test, [-10**100]) |
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102 self.assertRaises(ValueError, self.type2test, [256]) |
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103 self.assertRaises(ValueError, self.type2test, [257]) |
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104 self.assertRaises(ValueError, self.type2test, [sys.maxint]) |
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105 self.assertRaises(ValueError, self.type2test, [sys.maxint+1]) |
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106 self.assertRaises(ValueError, self.type2test, [10**100]) |
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108 def test_compare(self): |
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109 b1 = self.type2test([1, 2, 3]) |
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110 b2 = self.type2test([1, 2, 3]) |
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111 b3 = self.type2test([1, 3]) |
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113 self.assertEqual(b1, b2) |
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114 self.assertTrue(b2 != b3) |
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115 self.assertTrue(b1 <= b2) |
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116 self.assertTrue(b1 <= b3) |
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117 self.assertTrue(b1 < b3) |
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118 self.assertTrue(b1 >= b2) |
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119 self.assertTrue(b3 >= b2) |
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120 self.assertTrue(b3 > b2) |
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122 self.assertFalse(b1 != b2) |
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123 self.assertFalse(b2 == b3) |
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124 self.assertFalse(b1 > b2) |
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125 self.assertFalse(b1 > b3) |
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126 self.assertFalse(b1 >= b3) |
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127 self.assertFalse(b1 < b2) |
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128 self.assertFalse(b3 < b2) |
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129 self.assertFalse(b3 <= b2) |
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131 @check_bytes_warnings |
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132 def test_compare_to_str(self): |
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133 # Byte comparisons with unicode should always fail! |
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134 # Test this for all expected byte orders and Unicode character sizes |
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135 self.assertEqual(self.type2test(b"\0a\0b\0c") == u"abc", False) |
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136 self.assertEqual(self.type2test(b"\0\0\0a\0\0\0b\0\0\0c") == u"abc", False) |
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137 self.assertEqual(self.type2test(b"a\0b\0c\0") == u"abc", False) |
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138 self.assertEqual(self.type2test(b"a\0\0\0b\0\0\0c\0\0\0") == u"abc", False) |
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139 self.assertEqual(self.type2test() == unicode(), False) |
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140 self.assertEqual(self.type2test() != unicode(), True) |
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141 |
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142 def test_reversed(self): |
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143 input = list(map(ord, "Hello")) |
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144 b = self.type2test(input) |
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145 output = list(reversed(b)) |
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146 input.reverse() |
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147 self.assertEqual(output, input) |
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149 def test_getslice(self): |
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150 def by(s): |
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151 return self.type2test(map(ord, s)) |
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152 b = by("Hello, world") |
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153 |
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154 self.assertEqual(b[:5], by("Hello")) |
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155 self.assertEqual(b[1:5], by("ello")) |
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156 self.assertEqual(b[5:7], by(", ")) |
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157 self.assertEqual(b[7:], by("world")) |
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158 self.assertEqual(b[7:12], by("world")) |
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159 self.assertEqual(b[7:100], by("world")) |
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160 |
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161 self.assertEqual(b[:-7], by("Hello")) |
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162 self.assertEqual(b[-11:-7], by("ello")) |
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163 self.assertEqual(b[-7:-5], by(", ")) |
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164 self.assertEqual(b[-5:], by("world")) |
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165 self.assertEqual(b[-5:12], by("world")) |
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166 self.assertEqual(b[-5:100], by("world")) |
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167 self.assertEqual(b[-100:5], by("Hello")) |
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168 |
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169 def test_extended_getslice(self): |
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170 # Test extended slicing by comparing with list slicing. |
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171 L = list(range(255)) |
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172 b = self.type2test(L) |
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173 indices = (0, None, 1, 3, 19, 100, -1, -2, -31, -100) |
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174 for start in indices: |
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175 for stop in indices: |
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176 # Skip step 0 (invalid) |
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177 for step in indices[1:]: |
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178 self.assertEqual(b[start:stop:step], self.type2test(L[start:stop:step])) |
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179 |
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180 def test_encoding(self): |
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181 sample = u"Hello world\n\u1234\u5678\u9abc\udef0" |
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182 for enc in ("utf8", "utf16"): |
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183 b = self.type2test(sample, enc) |
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184 self.assertEqual(b, self.type2test(sample.encode(enc))) |
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185 self.assertRaises(UnicodeEncodeError, self.type2test, sample, "latin1") |
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186 b = self.type2test(sample, "latin1", "ignore") |
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187 self.assertEqual(b, self.type2test(sample[:-4], "utf-8")) |
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188 |
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189 def test_decode(self): |
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190 sample = u"Hello world\n\u1234\u5678\u9abc\def0\def0" |
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191 for enc in ("utf8", "utf16"): |
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192 b = self.type2test(sample, enc) |
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193 self.assertEqual(b.decode(enc), sample) |
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194 sample = u"Hello world\n\x80\x81\xfe\xff" |
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195 b = self.type2test(sample, "latin1") |
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196 self.assertRaises(UnicodeDecodeError, b.decode, "utf8") |
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197 self.assertEqual(b.decode("utf8", "ignore"), "Hello world\n") |
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198 self.assertEqual(b.decode(errors="ignore", encoding="utf8"), |
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199 "Hello world\n") |
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200 |
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201 def test_from_int(self): |
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202 b = self.type2test(0) |
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203 self.assertEqual(b, self.type2test()) |
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204 b = self.type2test(10) |
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205 self.assertEqual(b, self.type2test([0]*10)) |
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206 b = self.type2test(10000) |
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207 self.assertEqual(b, self.type2test([0]*10000)) |
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208 |
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209 def test_concat(self): |
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210 b1 = self.type2test(b"abc") |
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211 b2 = self.type2test(b"def") |
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212 self.assertEqual(b1 + b2, b"abcdef") |
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213 self.assertEqual(b1 + bytes(b"def"), b"abcdef") |
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214 self.assertEqual(bytes(b"def") + b1, b"defabc") |
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215 self.assertRaises(TypeError, lambda: b1 + u"def") |
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216 self.assertRaises(TypeError, lambda: u"abc" + b2) |
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217 |
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218 def test_repeat(self): |
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219 for b in b"abc", self.type2test(b"abc"): |
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220 self.assertEqual(b * 3, b"abcabcabc") |
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221 self.assertEqual(b * 0, b"") |
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222 self.assertEqual(b * -1, b"") |
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223 self.assertRaises(TypeError, lambda: b * 3.14) |
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224 self.assertRaises(TypeError, lambda: 3.14 * b) |
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225 # XXX Shouldn't bytes and bytearray agree on what to raise? |
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226 self.assertRaises((OverflowError, MemoryError), |
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227 lambda: b * sys.maxsize) |
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228 |
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229 def test_repeat_1char(self): |
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230 self.assertEqual(self.type2test(b'x')*100, self.type2test([ord('x')]*100)) |
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231 |
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232 def test_contains(self): |
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233 b = self.type2test(b"abc") |
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234 self.assertIn(ord('a'), b) |
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235 self.assertIn(int(ord('a')), b) |
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236 self.assertNotIn(200, b) |
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237 self.assertRaises(ValueError, lambda: 300 in b) |
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238 self.assertRaises(ValueError, lambda: -1 in b) |
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239 self.assertRaises(TypeError, lambda: None in b) |
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240 self.assertRaises(TypeError, lambda: float(ord('a')) in b) |
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241 self.assertRaises(TypeError, lambda: u"a" in b) |
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242 for f in bytes, bytearray: |
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243 self.assertIn(f(b""), b) |
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244 self.assertIn(f(b"a"), b) |
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245 self.assertIn(f(b"b"), b) |
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246 self.assertIn(f(b"c"), b) |
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247 self.assertIn(f(b"ab"), b) |
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248 self.assertIn(f(b"bc"), b) |
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249 self.assertIn(f(b"abc"), b) |
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250 self.assertNotIn(f(b"ac"), b) |
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251 self.assertNotIn(f(b"d"), b) |
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252 self.assertNotIn(f(b"dab"), b) |
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253 self.assertNotIn(f(b"abd"), b) |
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254 |
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255 def test_fromhex(self): |
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256 self.assertRaises(TypeError, self.type2test.fromhex) |
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257 self.assertRaises(TypeError, self.type2test.fromhex, 1) |
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258 self.assertEqual(self.type2test.fromhex(u''), self.type2test()) |
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259 b = bytearray([0x1a, 0x2b, 0x30]) |
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260 self.assertEqual(self.type2test.fromhex(u'1a2B30'), b) |
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261 self.assertEqual(self.type2test.fromhex(u' 1A 2B 30 '), b) |
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262 self.assertEqual(self.type2test.fromhex(u'0000'), b'\0\0') |
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263 self.assertRaises(ValueError, self.type2test.fromhex, u'a') |
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264 self.assertRaises(ValueError, self.type2test.fromhex, u'rt') |
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265 self.assertRaises(ValueError, self.type2test.fromhex, u'1a b cd') |
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266 self.assertRaises(ValueError, self.type2test.fromhex, u'\x00') |
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267 self.assertRaises(ValueError, self.type2test.fromhex, u'12 \x00 34') |
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268 |
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269 def test_join(self): |
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270 self.assertEqual(self.type2test(b"").join([]), b"") |
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271 self.assertEqual(self.type2test(b"").join([b""]), b"") |
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272 for lst in [[b"abc"], [b"a", b"bc"], [b"ab", b"c"], [b"a", b"b", b"c"]]: |
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273 lst = list(map(self.type2test, lst)) |
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274 self.assertEqual(self.type2test(b"").join(lst), b"abc") |
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275 self.assertEqual(self.type2test(b"").join(tuple(lst)), b"abc") |
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276 self.assertEqual(self.type2test(b"").join(iter(lst)), b"abc") |
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277 self.assertEqual(self.type2test(b".").join([b"ab", b"cd"]), b"ab.cd") |
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278 # XXX more... |
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279 |
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280 def test_count(self): |
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281 b = self.type2test(b'mississippi') |
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282 self.assertEqual(b.count(b'i'), 4) |
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283 self.assertEqual(b.count(b'ss'), 2) |
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284 self.assertEqual(b.count(b'w'), 0) |
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285 |
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286 def test_startswith(self): |
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287 b = self.type2test(b'hello') |
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288 self.assertFalse(self.type2test().startswith(b"anything")) |
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289 self.assertTrue(b.startswith(b"hello")) |
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290 self.assertTrue(b.startswith(b"hel")) |
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291 self.assertTrue(b.startswith(b"h")) |
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292 self.assertFalse(b.startswith(b"hellow")) |
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293 self.assertFalse(b.startswith(b"ha")) |
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294 |
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295 def test_endswith(self): |
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296 b = self.type2test(b'hello') |
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297 self.assertFalse(bytearray().endswith(b"anything")) |
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298 self.assertTrue(b.endswith(b"hello")) |
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299 self.assertTrue(b.endswith(b"llo")) |
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300 self.assertTrue(b.endswith(b"o")) |
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301 self.assertFalse(b.endswith(b"whello")) |
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302 self.assertFalse(b.endswith(b"no")) |
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303 |
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304 def test_find(self): |
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305 b = self.type2test(b'mississippi') |
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306 self.assertEqual(b.find(b'ss'), 2) |
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307 self.assertEqual(b.find(b'ss', 3), 5) |
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308 self.assertEqual(b.find(b'ss', 1, 7), 2) |
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309 self.assertEqual(b.find(b'ss', 1, 3), -1) |
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310 self.assertEqual(b.find(b'w'), -1) |
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311 self.assertEqual(b.find(b'mississippian'), -1) |
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312 |
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313 def test_rfind(self): |
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314 b = self.type2test(b'mississippi') |
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315 self.assertEqual(b.rfind(b'ss'), 5) |
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316 self.assertEqual(b.rfind(b'ss', 3), 5) |
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317 self.assertEqual(b.rfind(b'ss', 0, 6), 2) |
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318 self.assertEqual(b.rfind(b'w'), -1) |
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319 self.assertEqual(b.rfind(b'mississippian'), -1) |
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320 |
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321 def test_index(self): |
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322 b = self.type2test(b'world') |
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323 self.assertEqual(b.index(b'w'), 0) |
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324 self.assertEqual(b.index(b'orl'), 1) |
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325 self.assertRaises(ValueError, b.index, b'worm') |
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326 self.assertRaises(ValueError, b.index, b'ldo') |
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327 |
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328 def test_rindex(self): |
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329 # XXX could be more rigorous |
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330 b = self.type2test(b'world') |
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331 self.assertEqual(b.rindex(b'w'), 0) |
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332 self.assertEqual(b.rindex(b'orl'), 1) |
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333 self.assertRaises(ValueError, b.rindex, b'worm') |
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334 self.assertRaises(ValueError, b.rindex, b'ldo') |
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335 |
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336 def test_replace(self): |
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337 b = self.type2test(b'mississippi') |
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338 self.assertEqual(b.replace(b'i', b'a'), b'massassappa') |
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339 self.assertEqual(b.replace(b'ss', b'x'), b'mixixippi') |
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340 |
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341 def test_split(self): |
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342 b = self.type2test(b'mississippi') |
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343 self.assertEqual(b.split(b'i'), [b'm', b'ss', b'ss', b'pp', b'']) |
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344 self.assertEqual(b.split(b'ss'), [b'mi', b'i', b'ippi']) |
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345 self.assertEqual(b.split(b'w'), [b]) |
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346 |
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347 def test_split_whitespace(self): |
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348 for b in (b' arf barf ', b'arf\tbarf', b'arf\nbarf', b'arf\rbarf', |
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349 b'arf\fbarf', b'arf\vbarf'): |
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350 b = self.type2test(b) |
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351 self.assertEqual(b.split(), [b'arf', b'barf']) |
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352 self.assertEqual(b.split(None), [b'arf', b'barf']) |
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353 self.assertEqual(b.split(None, 2), [b'arf', b'barf']) |
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354 for b in (b'a\x1Cb', b'a\x1Db', b'a\x1Eb', b'a\x1Fb'): |
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355 b = self.type2test(b) |
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356 self.assertEqual(b.split(), [b]) |
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357 self.assertEqual(self.type2test(b' a bb c ').split(None, 0), [b'a bb c ']) |
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358 self.assertEqual(self.type2test(b' a bb c ').split(None, 1), [b'a', b'bb c ']) |
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359 self.assertEqual(self.type2test(b' a bb c ').split(None, 2), [b'a', b'bb', b'c ']) |
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360 self.assertEqual(self.type2test(b' a bb c ').split(None, 3), [b'a', b'bb', b'c']) |
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361 |
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362 def test_split_string_error(self): |
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363 self.assertRaises(TypeError, self.type2test(b'a b').split, u' ') |
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364 |
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365 def test_split_unicodewhitespace(self): |
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366 b = self.type2test(b"\x09\x0A\x0B\x0C\x0D\x1C\x1D\x1E\x1F") |
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367 self.assertEqual(b.split(), [b'\x1c\x1d\x1e\x1f']) |
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368 |
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369 def test_rsplit(self): |
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370 b = self.type2test(b'mississippi') |
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371 self.assertEqual(b.rsplit(b'i'), [b'm', b'ss', b'ss', b'pp', b'']) |
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372 self.assertEqual(b.rsplit(b'ss'), [b'mi', b'i', b'ippi']) |
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373 self.assertEqual(b.rsplit(b'w'), [b]) |
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374 |
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375 def test_rsplit_whitespace(self): |
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376 for b in (b' arf barf ', b'arf\tbarf', b'arf\nbarf', b'arf\rbarf', |
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377 b'arf\fbarf', b'arf\vbarf'): |
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378 b = self.type2test(b) |
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379 self.assertEqual(b.rsplit(), [b'arf', b'barf']) |
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380 self.assertEqual(b.rsplit(None), [b'arf', b'barf']) |
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381 self.assertEqual(b.rsplit(None, 2), [b'arf', b'barf']) |
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382 self.assertEqual(self.type2test(b' a bb c ').rsplit(None, 0), [b' a bb c']) |
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383 self.assertEqual(self.type2test(b' a bb c ').rsplit(None, 1), [b' a bb', b'c']) |
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384 self.assertEqual(self.type2test(b' a bb c ').rsplit(None, 2), [b' a', b'bb', b'c']) |
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385 self.assertEqual(self.type2test(b' a bb c ').rsplit(None, 3), [b'a', b'bb', b'c']) |
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386 |
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387 def test_rsplit_string_error(self): |
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388 self.assertRaises(TypeError, self.type2test(b'a b').rsplit, u' ') |
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389 |
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390 def test_rsplit_unicodewhitespace(self): |
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391 b = self.type2test(b"\x09\x0A\x0B\x0C\x0D\x1C\x1D\x1E\x1F") |
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392 self.assertEqual(b.rsplit(), [b'\x1c\x1d\x1e\x1f']) |
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393 |
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394 def test_partition(self): |
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395 b = self.type2test(b'mississippi') |
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396 self.assertEqual(b.partition(b'ss'), (b'mi', b'ss', b'issippi')) |
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397 self.assertEqual(b.partition(b'w'), (b'mississippi', b'', b'')) |
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398 |
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399 def test_rpartition(self): |
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400 b = self.type2test(b'mississippi') |
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401 self.assertEqual(b.rpartition(b'ss'), (b'missi', b'ss', b'ippi')) |
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402 self.assertEqual(b.rpartition(b'i'), (b'mississipp', b'i', b'')) |
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403 self.assertEqual(b.rpartition(b'w'), (b'', b'', b'mississippi')) |
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404 |
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405 def test_pickling(self): |
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406 for proto in range(pickle.HIGHEST_PROTOCOL + 1): |
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407 for b in b"", b"a", b"abc", b"\xffab\x80", b"\0\0\377\0\0": |
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408 b = self.type2test(b) |
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409 ps = pickle.dumps(b, proto) |
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410 q = pickle.loads(ps) |
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411 self.assertEqual(b, q) |
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412 |
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413 def test_strip(self): |
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414 b = self.type2test(b'mississippi') |
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415 self.assertEqual(b.strip(b'i'), b'mississipp') |
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416 self.assertEqual(b.strip(b'm'), b'ississippi') |
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417 self.assertEqual(b.strip(b'pi'), b'mississ') |
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418 self.assertEqual(b.strip(b'im'), b'ssissipp') |
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419 self.assertEqual(b.strip(b'pim'), b'ssiss') |
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420 self.assertEqual(b.strip(b), b'') |
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421 |
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422 def test_lstrip(self): |
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423 b = self.type2test(b'mississippi') |
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424 self.assertEqual(b.lstrip(b'i'), b'mississippi') |
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425 self.assertEqual(b.lstrip(b'm'), b'ississippi') |
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426 self.assertEqual(b.lstrip(b'pi'), b'mississippi') |
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427 self.assertEqual(b.lstrip(b'im'), b'ssissippi') |
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428 self.assertEqual(b.lstrip(b'pim'), b'ssissippi') |
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429 |
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430 def test_rstrip(self): |
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431 b = self.type2test(b'mississippi') |
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432 self.assertEqual(b.rstrip(b'i'), b'mississipp') |
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433 self.assertEqual(b.rstrip(b'm'), b'mississippi') |
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434 self.assertEqual(b.rstrip(b'pi'), b'mississ') |
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435 self.assertEqual(b.rstrip(b'im'), b'mississipp') |
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436 self.assertEqual(b.rstrip(b'pim'), b'mississ') |
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437 |
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438 def test_strip_whitespace(self): |
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439 b = self.type2test(b' \t\n\r\f\vabc \t\n\r\f\v') |
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440 self.assertEqual(b.strip(), b'abc') |
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441 self.assertEqual(b.lstrip(), b'abc \t\n\r\f\v') |
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442 self.assertEqual(b.rstrip(), b' \t\n\r\f\vabc') |
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443 |
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444 def test_strip_bytearray(self): |
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445 self.assertEqual(self.type2test(b'abc').strip(memoryview(b'ac')), b'b') |
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446 self.assertEqual(self.type2test(b'abc').lstrip(memoryview(b'ac')), b'bc') |
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447 self.assertEqual(self.type2test(b'abc').rstrip(memoryview(b'ac')), b'ab') |
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448 |
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449 def test_strip_string_error(self): |
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450 self.assertRaises(TypeError, self.type2test(b'abc').strip, u'b') |
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451 self.assertRaises(TypeError, self.type2test(b'abc').lstrip, u'b') |
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452 self.assertRaises(TypeError, self.type2test(b'abc').rstrip, u'b') |
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453 |
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454 def test_ord(self): |
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455 b = self.type2test(b'\0A\x7f\x80\xff') |
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456 self.assertEqual([ord(b[i:i+1]) for i in range(len(b))], |
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457 [0, 65, 127, 128, 255]) |
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458 |
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459 def test_none_arguments(self): |
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460 # issue 11828 |
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461 b = self.type2test(b'hello') |
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462 l = self.type2test(b'l') |
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463 h = self.type2test(b'h') |
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464 x = self.type2test(b'x') |
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465 o = self.type2test(b'o') |
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466 |
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467 self.assertEqual(2, b.find(l, None)) |
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468 self.assertEqual(3, b.find(l, -2, None)) |
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469 self.assertEqual(2, b.find(l, None, -2)) |
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470 self.assertEqual(0, b.find(h, None, None)) |
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471 |
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472 self.assertEqual(3, b.rfind(l, None)) |
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473 self.assertEqual(3, b.rfind(l, -2, None)) |
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474 self.assertEqual(2, b.rfind(l, None, -2)) |
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475 self.assertEqual(0, b.rfind(h, None, None)) |
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476 |
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477 self.assertEqual(2, b.index(l, None)) |
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478 self.assertEqual(3, b.index(l, -2, None)) |
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479 self.assertEqual(2, b.index(l, None, -2)) |
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480 self.assertEqual(0, b.index(h, None, None)) |
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481 |
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482 self.assertEqual(3, b.rindex(l, None)) |
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483 self.assertEqual(3, b.rindex(l, -2, None)) |
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484 self.assertEqual(2, b.rindex(l, None, -2)) |
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485 self.assertEqual(0, b.rindex(h, None, None)) |
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486 |
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487 self.assertEqual(2, b.count(l, None)) |
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488 self.assertEqual(1, b.count(l, -2, None)) |
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489 self.assertEqual(1, b.count(l, None, -2)) |
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490 self.assertEqual(0, b.count(x, None, None)) |
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491 |
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492 self.assertEqual(True, b.endswith(o, None)) |
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493 self.assertEqual(True, b.endswith(o, -2, None)) |
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494 self.assertEqual(True, b.endswith(l, None, -2)) |
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495 self.assertEqual(False, b.endswith(x, None, None)) |
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496 |
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497 self.assertEqual(True, b.startswith(h, None)) |
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498 self.assertEqual(True, b.startswith(l, -2, None)) |
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499 self.assertEqual(True, b.startswith(h, None, -2)) |
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500 self.assertEqual(False, b.startswith(x, None, None)) |
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501 |
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502 def test_find_etc_raise_correct_error_messages(self): |
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503 # issue 11828 |
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504 b = self.type2test(b'hello') |
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505 x = self.type2test(b'x') |
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506 self.assertRaisesRegexp(TypeError, r'\bfind\b', b.find, |
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507 x, None, None, None) |
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508 self.assertRaisesRegexp(TypeError, r'\brfind\b', b.rfind, |
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509 x, None, None, None) |
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510 self.assertRaisesRegexp(TypeError, r'\bindex\b', b.index, |
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511 x, None, None, None) |
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512 self.assertRaisesRegexp(TypeError, r'\brindex\b', b.rindex, |
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513 x, None, None, None) |
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514 self.assertRaisesRegexp(TypeError, r'\bcount\b', b.count, |
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515 x, None, None, None) |
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516 self.assertRaisesRegexp(TypeError, r'\bstartswith\b', b.startswith, |
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517 x, None, None, None) |
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518 self.assertRaisesRegexp(TypeError, r'\bendswith\b', b.endswith, |
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519 x, None, None, None) |
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520 |
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521 |
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522 class ByteArrayTest(BaseBytesTest): |
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523 type2test = bytearray |
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524 |
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525 def test_nohash(self): |
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526 self.assertRaises(TypeError, hash, bytearray()) |
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527 |
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528 def test_bytearray_api(self): |
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529 short_sample = b"Hello world\n" |
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530 sample = short_sample + b"\0"*(20 - len(short_sample)) |
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531 tfn = tempfile.mktemp() |
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532 try: |
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533 # Prepare |
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534 with open(tfn, "wb") as f: |
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535 f.write(short_sample) |
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536 # Test readinto |
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537 with open(tfn, "rb") as f: |
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538 b = bytearray(20) |
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539 n = f.readinto(b) |
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540 self.assertEqual(n, len(short_sample)) |
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541 # Python 2.x |
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542 b_sample = (ord(s) for s in sample) |
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543 self.assertEqual(list(b), list(b_sample)) |
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544 # Test writing in binary mode |
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545 with open(tfn, "wb") as f: |
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546 f.write(b) |
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547 with open(tfn, "rb") as f: |
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548 self.assertEqual(f.read(), sample) |
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549 # Text mode is ambiguous; don't test |
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550 finally: |
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551 try: |
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552 os.remove(tfn) |
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553 except os.error: |
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554 pass |
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555 |
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556 def test_reverse(self): |
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557 b = bytearray(b'hello') |
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558 self.assertEqual(b.reverse(), None) |
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559 self.assertEqual(b, b'olleh') |
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560 b = bytearray(b'hello1') # test even number of items |
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561 b.reverse() |
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562 self.assertEqual(b, b'1olleh') |
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563 b = bytearray() |
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564 b.reverse() |
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565 self.assertFalse(b) |
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566 |
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567 def test_regexps(self): |
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568 def by(s): |
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569 return bytearray(map(ord, s)) |
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570 b = by("Hello, world") |
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571 self.assertEqual(re.findall(r"\w+", b), [by("Hello"), by("world")]) |
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572 |
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573 def test_setitem(self): |
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574 b = bytearray([1, 2, 3]) |
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575 b[1] = 100 |
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576 self.assertEqual(b, bytearray([1, 100, 3])) |
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577 b[-1] = 200 |
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578 self.assertEqual(b, bytearray([1, 100, 200])) |
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579 b[0] = Indexable(10) |
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580 self.assertEqual(b, bytearray([10, 100, 200])) |
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581 try: |
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582 b[3] = 0 |
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583 self.fail("Didn't raise IndexError") |
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584 except IndexError: |
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585 pass |
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586 try: |
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587 b[-10] = 0 |
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588 self.fail("Didn't raise IndexError") |
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589 except IndexError: |
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590 pass |
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591 try: |
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592 b[0] = 256 |
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593 self.fail("Didn't raise ValueError") |
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594 except ValueError: |
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595 pass |
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596 try: |
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597 b[0] = Indexable(-1) |
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598 self.fail("Didn't raise ValueError") |
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599 except ValueError: |
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600 pass |
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601 try: |
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602 b[0] = None |
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603 self.fail("Didn't raise TypeError") |
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604 except TypeError: |
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605 pass |
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606 |
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607 def test_delitem(self): |
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608 b = bytearray(range(10)) |
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609 del b[0] |
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610 self.assertEqual(b, bytearray(range(1, 10))) |
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611 del b[-1] |
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612 self.assertEqual(b, bytearray(range(1, 9))) |
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613 del b[4] |
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614 self.assertEqual(b, bytearray([1, 2, 3, 4, 6, 7, 8])) |
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615 |
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616 def test_setslice(self): |
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617 b = bytearray(range(10)) |
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618 self.assertEqual(list(b), list(range(10))) |
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619 |
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620 b[0:5] = bytearray([1, 1, 1, 1, 1]) |
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621 self.assertEqual(b, bytearray([1, 1, 1, 1, 1, 5, 6, 7, 8, 9])) |
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622 |
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623 del b[0:-5] |
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624 self.assertEqual(b, bytearray([5, 6, 7, 8, 9])) |
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625 |
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626 b[0:0] = bytearray([0, 1, 2, 3, 4]) |
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627 self.assertEqual(b, bytearray(range(10))) |
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628 |
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629 b[-7:-3] = bytearray([100, 101]) |
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630 self.assertEqual(b, bytearray([0, 1, 2, 100, 101, 7, 8, 9])) |
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631 |
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632 b[3:5] = [3, 4, 5, 6] |
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633 self.assertEqual(b, bytearray(range(10))) |
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634 |
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635 b[3:0] = [42, 42, 42] |
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636 self.assertEqual(b, bytearray([0, 1, 2, 42, 42, 42, 3, 4, 5, 6, 7, 8, 9])) |
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637 |
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80207
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638 b[3:] = b'foo' |
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639 self.assertEqual(b, bytearray([0, 1, 2, 102, 111, 111])) |
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640 |
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641 b[:3] = memoryview(b'foo') |
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642 self.assertEqual(b, bytearray([102, 111, 111, 102, 111, 111])) |
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643 |
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644 b[3:4] = [] |
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645 self.assertEqual(b, bytearray([102, 111, 111, 111, 111])) |
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646 |
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647 b[1:] = list(b'uuuu') # this works only on Python2 |
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648 self.assertEqual(b, bytearray([102, 117, 117, 117, 117])) |
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649 |
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650 for elem in [5, -5, 0, long(10e20), u'str', 2.3, [u'a', u'b'], [[]]]: |
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651 with self.assertRaises(TypeError): |
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652 b[3:4] = elem |
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653 |
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654 for elem in [[254, 255, 256], [-256, 9000]]: |
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655 with self.assertRaises(ValueError): |
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656 b[3:4] = elem |
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657 |
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658 def test_extended_set_del_slice(self): |
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659 indices = (0, None, 1, 3, 19, 300, 1<<333, -1, -2, -31, -300) |
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660 for start in indices: |
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661 for stop in indices: |
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662 # Skip invalid step 0 |
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663 for step in indices[1:]: |
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664 L = list(range(255)) |
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665 b = bytearray(L) |
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666 # Make sure we have a slice of exactly the right length, |
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667 # but with different data. |
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668 data = L[start:stop:step] |
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669 data.reverse() |
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670 L[start:stop:step] = data |
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671 b[start:stop:step] = data |
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672 self.assertEqual(b, bytearray(L)) |
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673 |
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674 del L[start:stop:step] |
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675 del b[start:stop:step] |
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676 self.assertEqual(b, bytearray(L)) |
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677 |
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678 def test_setslice_trap(self): |
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679 # This test verifies that we correctly handle assigning self |
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680 # to a slice of self (the old Lambert Meertens trap). |
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681 b = bytearray(range(256)) |
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682 b[8:] = b |
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683 self.assertEqual(b, bytearray(list(range(8)) + list(range(256)))) |
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684 |
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685 def test_iconcat(self): |
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686 b = bytearray(b"abc") |
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687 b1 = b |
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688 b += b"def" |
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689 self.assertEqual(b, b"abcdef") |
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690 self.assertEqual(b, b1) |
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691 self.assertTrue(b is b1) |
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692 b += b"xyz" |
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693 self.assertEqual(b, b"abcdefxyz") |
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694 try: |
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695 b += u"" |
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696 except TypeError: |
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697 pass |
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698 else: |
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699 self.fail("bytes += unicode didn't raise TypeError") |
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700 |
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701 def test_irepeat(self): |
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702 b = bytearray(b"abc") |
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703 b1 = b |
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704 b *= 3 |
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705 self.assertEqual(b, b"abcabcabc") |
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706 self.assertEqual(b, b1) |
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707 self.assertTrue(b is b1) |
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708 |
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709 def test_irepeat_1char(self): |
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710 b = bytearray(b"x") |
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711 b1 = b |
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712 b *= 100 |
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713 self.assertEqual(b, b"x"*100) |
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714 self.assertEqual(b, b1) |
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715 self.assertTrue(b is b1) |
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716 |
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717 def test_alloc(self): |
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718 b = bytearray() |
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719 alloc = b.__alloc__() |
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720 self.assertTrue(alloc >= 0) |
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721 seq = [alloc] |
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722 for i in range(100): |
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723 b += b"x" |
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724 alloc = b.__alloc__() |
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725 self.assertTrue(alloc >= len(b)) |
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726 if alloc not in seq: |
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727 seq.append(alloc) |
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728 |
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729 def test_extend(self): |
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730 orig = b'hello' |
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731 a = bytearray(orig) |
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732 a.extend(a) |
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733 self.assertEqual(a, orig + orig) |
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734 self.assertEqual(a[5:], orig) |
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735 a = bytearray(b'') |
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736 # Test iterators that don't have a __length_hint__ |
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737 a.extend(map(ord, orig * 25)) |
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738 a.extend(ord(x) for x in orig * 25) |
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739 self.assertEqual(a, orig * 50) |
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740 self.assertEqual(a[-5:], orig) |
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741 a = bytearray(b'') |
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742 a.extend(iter(map(ord, orig * 50))) |
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743 self.assertEqual(a, orig * 50) |
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744 self.assertEqual(a[-5:], orig) |
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745 a = bytearray(b'') |
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746 a.extend(list(map(ord, orig * 50))) |
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747 self.assertEqual(a, orig * 50) |
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748 self.assertEqual(a[-5:], orig) |
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749 a = bytearray(b'') |
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750 self.assertRaises(ValueError, a.extend, [0, 1, 2, 256]) |
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751 self.assertRaises(ValueError, a.extend, [0, 1, 2, -1]) |
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752 self.assertEqual(len(a), 0) |
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753 a = bytearray(b'') |
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754 a.extend([Indexable(ord('a'))]) |
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755 self.assertEqual(a, b'a') |
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756 |
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757 def test_remove(self): |
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758 b = bytearray(b'hello') |
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759 b.remove(ord('l')) |
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760 self.assertEqual(b, b'helo') |
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761 b.remove(ord('l')) |
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762 self.assertEqual(b, b'heo') |
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763 self.assertRaises(ValueError, lambda: b.remove(ord('l'))) |
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764 self.assertRaises(ValueError, lambda: b.remove(400)) |
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765 self.assertRaises(TypeError, lambda: b.remove(u'e')) |
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766 # remove first and last |
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767 b.remove(ord('o')) |
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768 b.remove(ord('h')) |
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769 self.assertEqual(b, b'e') |
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770 self.assertRaises(TypeError, lambda: b.remove(u'e')) |
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771 b.remove(Indexable(ord('e'))) |
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772 self.assertEqual(b, b'') |
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773 |
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774 def test_pop(self): |
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775 b = bytearray(b'world') |
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776 self.assertEqual(b.pop(), ord('d')) |
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777 self.assertEqual(b.pop(0), ord('w')) |
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778 self.assertEqual(b.pop(-2), ord('r')) |
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779 self.assertRaises(IndexError, lambda: b.pop(10)) |
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780 self.assertRaises(IndexError, lambda: bytearray().pop()) |
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781 # test for issue #6846 |
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782 self.assertEqual(bytearray(b'\xff').pop(), 0xff) |
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783 |
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784 def test_nosort(self): |
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785 self.assertRaises(AttributeError, lambda: bytearray().sort()) |
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786 |
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787 def test_append(self): |
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788 b = bytearray(b'hell') |
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789 b.append(ord('o')) |
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790 self.assertEqual(b, b'hello') |
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791 self.assertEqual(b.append(100), None) |
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792 b = bytearray() |
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793 b.append(ord('A')) |
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794 self.assertEqual(len(b), 1) |
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795 self.assertRaises(TypeError, lambda: b.append(u'o')) |
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796 b = bytearray() |
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797 b.append(Indexable(ord('A'))) |
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798 self.assertEqual(b, b'A') |
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799 |
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800 def test_insert(self): |
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801 b = bytearray(b'msssspp') |
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802 b.insert(1, ord('i')) |
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803 b.insert(4, ord('i')) |
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804 b.insert(-2, ord('i')) |
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805 b.insert(1000, ord('i')) |
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806 self.assertEqual(b, b'mississippi') |
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807 # allowed in 2.x |
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808 #self.assertRaises(TypeError, lambda: b.insert(0, b'1')) |
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809 b = bytearray() |
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810 b.insert(0, Indexable(ord('A'))) |
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811 self.assertEqual(b, b'A') |
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812 |
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813 def test_copied(self): |
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814 # Issue 4348. Make sure that operations that don't mutate the array |
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815 # copy the bytes. |
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816 b = bytearray(b'abc') |
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817 self.assertFalse(b is b.replace(b'abc', b'cde', 0)) |
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818 |
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819 t = bytearray([i for i in range(256)]) |
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820 x = bytearray(b'') |
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821 self.assertFalse(x is x.translate(t)) |
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822 |
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823 def test_partition_bytearray_doesnt_share_nullstring(self): |
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824 a, b, c = bytearray(b"x").partition(b"y") |
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825 self.assertEqual(b, b"") |
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826 self.assertEqual(c, b"") |
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827 self.assertTrue(b is not c) |
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828 b += b"!" |
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829 self.assertEqual(c, b"") |
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830 a, b, c = bytearray(b"x").partition(b"y") |
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831 self.assertEqual(b, b"") |
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832 self.assertEqual(c, b"") |
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833 # Same for rpartition |
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834 b, c, a = bytearray(b"x").rpartition(b"y") |
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835 self.assertEqual(b, b"") |
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836 self.assertEqual(c, b"") |
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837 self.assertTrue(b is not c) |
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838 b += b"!" |
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839 self.assertEqual(c, b"") |
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840 c, b, a = bytearray(b"x").rpartition(b"y") |
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841 self.assertEqual(b, b"") |
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842 self.assertEqual(c, b"") |
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843 |
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844 def test_resize_forbidden(self): |
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845 # #4509: can't resize a bytearray when there are buffer exports, even |
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846 # if it wouldn't reallocate the underlying buffer. |
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847 # Furthermore, no destructive changes to the buffer may be applied |
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848 # before raising the error. |
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849 b = bytearray(range(10)) |
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850 v = memoryview(b) |
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851 def resize(n): |
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852 b[1:-1] = range(n + 1, 2*n - 1) |
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853 resize(10) |
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854 orig = b[:] |
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855 self.assertRaises(BufferError, resize, 11) |
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856 self.assertEqual(b, orig) |
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857 self.assertRaises(BufferError, resize, 9) |
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858 self.assertEqual(b, orig) |
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859 self.assertRaises(BufferError, resize, 0) |
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860 self.assertEqual(b, orig) |
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861 # Other operations implying resize |
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862 self.assertRaises(BufferError, b.pop, 0) |
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863 self.assertEqual(b, orig) |
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864 self.assertRaises(BufferError, b.remove, b[1]) |
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865 self.assertEqual(b, orig) |
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866 def delitem(): |
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867 del b[1] |
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868 self.assertRaises(BufferError, delitem) |
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869 self.assertEqual(b, orig) |
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870 # deleting a non-contiguous slice |
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871 def delslice(): |
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872 b[1:-1:2] = b"" |
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873 self.assertRaises(BufferError, delslice) |
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874 self.assertEqual(b, orig) |
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875 |
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876 def test_empty_bytearray(self): |
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877 # Issue #7561: operations on empty bytearrays could crash in many |
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878 # situations, due to a fragile implementation of the |
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879 # PyByteArray_AS_STRING() C macro. |
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880 self.assertRaises(ValueError, int, bytearray(b'')) |
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882 |
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883 class AssortedBytesTest(unittest.TestCase): |
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884 # |
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885 # Test various combinations of bytes and bytearray |
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886 # |
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887 |
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888 @check_bytes_warnings |
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889 def test_repr_str(self): |
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890 for f in str, repr: |
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891 self.assertEqual(f(bytearray()), "bytearray(b'')") |
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892 self.assertEqual(f(bytearray([0])), "bytearray(b'\\x00')") |
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893 self.assertEqual(f(bytearray([0, 1, 254, 255])), |
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894 "bytearray(b'\\x00\\x01\\xfe\\xff')") |
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895 self.assertEqual(f(b"abc"), "b'abc'") |
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896 self.assertEqual(f(b"'"), '''b"'"''') # ''' |
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897 self.assertEqual(f(b"'\""), r"""b'\'"'""") # ' |
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898 |
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899 def test_compare_bytes_to_bytearray(self): |
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900 self.assertEqual(b"abc" == bytes(b"abc"), True) |
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901 self.assertEqual(b"ab" != bytes(b"abc"), True) |
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902 self.assertEqual(b"ab" <= bytes(b"abc"), True) |
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903 self.assertEqual(b"ab" < bytes(b"abc"), True) |
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904 self.assertEqual(b"abc" >= bytes(b"ab"), True) |
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905 self.assertEqual(b"abc" > bytes(b"ab"), True) |
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906 |
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907 self.assertEqual(b"abc" != bytes(b"abc"), False) |
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908 self.assertEqual(b"ab" == bytes(b"abc"), False) |
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909 self.assertEqual(b"ab" > bytes(b"abc"), False) |
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910 self.assertEqual(b"ab" >= bytes(b"abc"), False) |
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911 self.assertEqual(b"abc" < bytes(b"ab"), False) |
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912 self.assertEqual(b"abc" <= bytes(b"ab"), False) |
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913 |
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914 self.assertEqual(bytes(b"abc") == b"abc", True) |
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915 self.assertEqual(bytes(b"ab") != b"abc", True) |
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916 self.assertEqual(bytes(b"ab") <= b"abc", True) |
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917 self.assertEqual(bytes(b"ab") < b"abc", True) |
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918 self.assertEqual(bytes(b"abc") >= b"ab", True) |
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919 self.assertEqual(bytes(b"abc") > b"ab", True) |
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920 |
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921 self.assertEqual(bytes(b"abc") != b"abc", False) |
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922 self.assertEqual(bytes(b"ab") == b"abc", False) |
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923 self.assertEqual(bytes(b"ab") > b"abc", False) |
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924 self.assertEqual(bytes(b"ab") >= b"abc", False) |
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925 self.assertEqual(bytes(b"abc") < b"ab", False) |
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926 self.assertEqual(bytes(b"abc") <= b"ab", False) |
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927 |
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928 def test_doc(self): |
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929 self.assertIsNotNone(bytearray.__doc__) |
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930 self.assertTrue(bytearray.__doc__.startswith("bytearray("), bytearray.__doc__) |
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931 self.assertIsNotNone(bytes.__doc__) |
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932 self.assertTrue(bytes.__doc__.startswith("bytes("), bytes.__doc__) |
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933 |
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934 def test_from_bytearray(self): |
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935 sample = bytes(b"Hello world\n\x80\x81\xfe\xff") |
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936 buf = memoryview(sample) |
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937 b = bytearray(buf) |
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938 self.assertEqual(b, bytearray(sample)) |
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939 |
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940 @check_bytes_warnings |
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941 def test_to_str(self): |
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942 self.assertEqual(str(b''), "b''") |
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943 self.assertEqual(str(b'x'), "b'x'") |
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944 self.assertEqual(str(b'\x80'), "b'\\x80'") |
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945 self.assertEqual(str(bytearray(b'')), "bytearray(b'')") |
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946 self.assertEqual(str(bytearray(b'x')), "bytearray(b'x')") |
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947 self.assertEqual(str(bytearray(b'\x80')), "bytearray(b'\\x80')") |
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948 |
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949 def test_literal(self): |
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950 tests = [ |
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951 (b"Wonderful spam", "Wonderful spam"), |
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952 (br"Wonderful spam too", "Wonderful spam too"), |
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953 (b"\xaa\x00\000\200", "\xaa\x00\000\200"), |
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954 (br"\xaa\x00\000\200", r"\xaa\x00\000\200"), |
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955 ] |
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956 for b, s in tests: |
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957 self.assertEqual(b, bytearray(s, 'latin-1')) |
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958 for c in range(128, 256): |
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959 self.assertRaises(SyntaxError, eval, |
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960 'b"%s"' % chr(c)) |
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961 |
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962 def test_translate(self): |
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963 b = b'hello' |
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964 ba = bytearray(b) |
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965 rosetta = bytearray(range(0, 256)) |
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966 rosetta[ord('o')] = ord('e') |
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967 c = b.translate(rosetta, b'l') |
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968 self.assertEqual(b, b'hello') |
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969 self.assertEqual(c, b'hee') |
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970 c = ba.translate(rosetta, b'l') |
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971 self.assertEqual(ba, b'hello') |
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972 self.assertEqual(c, b'hee') |
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973 c = b.translate(None, b'e') |
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974 self.assertEqual(c, b'hllo') |
| 50330 | 975 c = ba.translate(None, b'e') |
| 976 self.assertEqual(c, b'hllo') | |
| 977 self.assertRaises(TypeError, b.translate, None, None) | |
| 978 self.assertRaises(TypeError, ba.translate, None, None) | |
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979 |
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980 def test_split_bytearray(self): |
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981 self.assertEqual(b'a b'.split(memoryview(b' ')), [b'a', b'b']) |
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982 |
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983 def test_rsplit_bytearray(self): |
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984 self.assertEqual(b'a b'.rsplit(memoryview(b' ')), [b'a', b'b']) |
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985 |
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986 # Optimizations: |
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987 # __iter__? (optimization) |
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988 # __reversed__? (optimization) |
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989 |
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990 # XXX More string methods? (Those that don't use character properties) |
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991 |
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992 # There are tests in string_tests.py that are more |
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993 # comprehensive for things like split, partition, etc. |
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994 # Unfortunately they are all bundled with tests that |
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995 # are not appropriate for bytes |
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996 |
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997 # I've started porting some of those into bytearray_tests.py, we should port |
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998 # the rest that make sense (the code can be cleaned up to use modern |
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999 # unittest methods at the same time). |
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1000 |
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1001 class BytearrayPEP3137Test(unittest.TestCase, |
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1002 test.buffer_tests.MixinBytesBufferCommonTests): |
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1003 def marshal(self, x): |
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1004 return bytearray(x) |
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1005 |
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1006 def test_returns_new_copy(self): |
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1007 val = self.marshal(b'1234') |
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1008 # On immutable types these MAY return a reference to themselves |
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1009 # but on mutable types like bytearray they MUST return a new copy. |
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1010 for methname in ('zfill', 'rjust', 'ljust', 'center'): |
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1011 method = getattr(val, methname) |
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1012 newval = method(3) |
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1013 self.assertEqual(val, newval) |
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1014 self.assertTrue(val is not newval, |
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1015 methname+' returned self on a mutable object') |
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1016 for expr in ('val.split()[0]', 'val.rsplit()[0]', |
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1017 'val.partition(".")[0]', 'val.rpartition(".")[2]', |
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1018 'val.splitlines()[0]', 'val.replace("", "")'): |
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1019 newval = eval(expr) |
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1020 self.assertEqual(val, newval) |
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1021 self.assertTrue(val is not newval, |
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1022 expr+' returned val on a mutable object') |
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1023 |
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1024 class FixedStringTest(test.string_tests.BaseTest): |
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1025 |
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1026 def fixtype(self, obj): |
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1027 if isinstance(obj, str): |
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1028 return obj.encode("utf-8") |
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1029 return super(FixedStringTest, self).fixtype(obj) |
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1030 |
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1031 # Currently the bytes containment testing uses a single integer |
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1032 # value. This may not be the final design, but until then the |
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1033 # bytes section with in a bytes containment not valid |
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1034 def test_contains(self): |
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1035 pass |
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1036 def test_expandtabs(self): |
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1037 pass |
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1038 def test_upper(self): |
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1039 pass |
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1040 def test_lower(self): |
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1041 pass |
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1042 def test_hash(self): |
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1043 # XXX check this out |
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1045 |
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1046 |
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1047 class ByteArrayAsStringTest(FixedStringTest): |
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1048 type2test = bytearray |
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1049 |
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1050 |
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1051 class ByteArraySubclass(bytearray): |
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1053 |
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1054 class ByteArraySubclassTest(unittest.TestCase): |
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1055 |
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1056 def test_basic(self): |
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1057 self.assertTrue(issubclass(ByteArraySubclass, bytearray)) |
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1058 self.assertIsInstance(ByteArraySubclass(), bytearray) |
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1059 |
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1060 a, b = b"abcd", b"efgh" |
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1061 _a, _b = ByteArraySubclass(a), ByteArraySubclass(b) |
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1062 |
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1063 # test comparison operators with subclass instances |
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1064 self.assertTrue(_a == _a) |
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1065 self.assertTrue(_a != _b) |
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1066 self.assertTrue(_a < _b) |
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1067 self.assertTrue(_a <= _b) |
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1068 self.assertTrue(_b >= _a) |
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1069 self.assertTrue(_b > _a) |
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1070 self.assertTrue(_a is not a) |
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1071 |
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1072 # test concat of subclass instances |
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1073 self.assertEqual(a + b, _a + _b) |
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1074 self.assertEqual(a + b, a + _b) |
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1075 self.assertEqual(a + b, _a + b) |
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1076 |
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1077 # test repeat |
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1078 self.assertTrue(a*5 == _a*5) |
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1079 |
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1080 def test_join(self): |
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1081 # Make sure join returns a NEW object for single item sequences |
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1082 # involving a subclass. |
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1083 # Make sure that it is of the appropriate type. |
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1084 s1 = ByteArraySubclass(b"abcd") |
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1085 s2 = bytearray().join([s1]) |
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1086 self.assertTrue(s1 is not s2) |
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1087 self.assertTrue(type(s2) is bytearray, type(s2)) |
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1088 |
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1089 # Test reverse, calling join on subclass |
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1090 s3 = s1.join([b"abcd"]) |
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1091 self.assertTrue(type(s3) is bytearray) |
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1092 |
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1093 def test_pickle(self): |
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1094 a = ByteArraySubclass(b"abcd") |
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1095 a.x = 10 |
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1096 a.y = ByteArraySubclass(b"efgh") |
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1097 for proto in range(pickle.HIGHEST_PROTOCOL + 1): |
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1098 b = pickle.loads(pickle.dumps(a, proto)) |
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1099 self.assertNotEqual(id(a), id(b)) |
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1100 self.assertEqual(a, b) |
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1101 self.assertEqual(a.x, b.x) |
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1102 self.assertEqual(a.y, b.y) |
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1103 self.assertEqual(type(a), type(b)) |
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1104 self.assertEqual(type(a.y), type(b.y)) |
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1105 |
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1106 def test_copy(self): |
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1107 a = ByteArraySubclass(b"abcd") |
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1108 a.x = 10 |
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1109 a.y = ByteArraySubclass(b"efgh") |
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1110 for copy_method in (copy.copy, copy.deepcopy): |
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1111 b = copy_method(a) |
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1112 self.assertNotEqual(id(a), id(b)) |
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1113 self.assertEqual(a, b) |
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1114 self.assertEqual(a.x, b.x) |
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1115 self.assertEqual(a.y, b.y) |
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1116 self.assertEqual(type(a), type(b)) |
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1117 self.assertEqual(type(a.y), type(b.y)) |
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1118 |
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1119 def test_init_override(self): |
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1120 class subclass(bytearray): |
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1121 def __init__(self, newarg=1, *args, **kwargs): |
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1122 bytearray.__init__(self, *args, **kwargs) |
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1123 x = subclass(4, source=b"abcd") |
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1124 self.assertEqual(x, b"abcd") |
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1125 x = subclass(newarg=4, source=b"abcd") |
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1126 self.assertEqual(x, b"abcd") |
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1127 |
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1128 def test_main(): |
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1129 #test.test_support.run_unittest(BytesTest) |
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1130 #test.test_support.run_unittest(AssortedBytesTest) |
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1131 #test.test_support.run_unittest(BytesAsStringTest) |
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1132 test.test_support.run_unittest( |
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1133 ByteArrayTest, |
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1134 ByteArrayAsStringTest, |
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1135 ByteArraySubclassTest, |
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1136 BytearrayPEP3137Test) |
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1137 |
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1138 if __name__ == "__main__": |
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1139 test_main() |