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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 pickle |
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13 import tempfile |
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14 import unittest |
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15 import warnings |
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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 class Indexable: |
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21 def __init__(self, value=0): |
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22 self.value = value |
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23 def __index__(self): |
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24 return self.value |
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25 |
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26 |
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27 class BaseBytesTest(unittest.TestCase): |
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28 |
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29 def setUp(self): |
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30 self.warning_filters = warnings.filters[:] |
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31 |
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32 def tearDown(self): |
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33 warnings.filters = self.warning_filters |
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34 |
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35 def test_basics(self): |
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36 b = self.type2test() |
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37 self.assertEqual(type(b), self.type2test) |
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38 self.assertEqual(b.__class__, self.type2test) |
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39 |
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40 def test_empty_sequence(self): |
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41 b = self.type2test() |
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42 self.assertEqual(len(b), 0) |
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43 self.assertRaises(IndexError, lambda: b[0]) |
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44 self.assertRaises(IndexError, lambda: b[1]) |
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45 self.assertRaises(IndexError, lambda: b[sys.maxint]) |
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46 self.assertRaises(IndexError, lambda: b[sys.maxint+1]) |
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47 self.assertRaises(IndexError, lambda: b[10**100]) |
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48 self.assertRaises(IndexError, lambda: b[-1]) |
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49 self.assertRaises(IndexError, lambda: b[-2]) |
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50 self.assertRaises(IndexError, lambda: b[-sys.maxint]) |
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51 self.assertRaises(IndexError, lambda: b[-sys.maxint-1]) |
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52 self.assertRaises(IndexError, lambda: b[-sys.maxint-2]) |
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53 self.assertRaises(IndexError, lambda: b[-10**100]) |
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54 |
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55 def test_from_list(self): |
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56 ints = list(range(256)) |
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57 b = self.type2test(i for i in ints) |
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58 self.assertEqual(len(b), 256) |
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59 self.assertEqual(list(b), ints) |
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60 |
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61 def test_from_index(self): |
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62 b = self.type2test([Indexable(), Indexable(1), Indexable(254), |
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63 Indexable(255)]) |
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64 self.assertEqual(list(b), [0, 1, 254, 255]) |
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65 self.assertRaises(ValueError, bytearray, [Indexable(-1)]) |
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66 self.assertRaises(ValueError, bytearray, [Indexable(256)]) |
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67 |
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68 def test_from_ssize(self): |
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69 self.assertEqual(bytearray(0), b'') |
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70 self.assertEqual(bytearray(1), b'\x00') |
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71 self.assertEqual(bytearray(5), b'\x00\x00\x00\x00\x00') |
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72 self.assertRaises(ValueError, bytearray, -1) |
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73 |
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74 self.assertEqual(bytearray('0', 'ascii'), b'0') |
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75 self.assertEqual(bytearray(b'0'), b'0') |
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76 |
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77 def test_constructor_type_errors(self): |
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78 self.assertRaises(TypeError, self.type2test, 0.0) |
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79 class C: |
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80 pass |
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81 # allowed in 2.6 |
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82 #self.assertRaises(TypeError, self.type2test, ["0"]) |
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83 self.assertRaises(TypeError, self.type2test, [0.0]) |
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84 self.assertRaises(TypeError, self.type2test, [None]) |
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85 self.assertRaises(TypeError, self.type2test, [C()]) |
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86 |
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87 def test_constructor_value_errors(self): |
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88 self.assertRaises(ValueError, self.type2test, [-1]) |
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89 self.assertRaises(ValueError, self.type2test, [-sys.maxint]) |
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90 self.assertRaises(ValueError, self.type2test, [-sys.maxint-1]) |
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91 self.assertRaises(ValueError, self.type2test, [-sys.maxint-2]) |
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92 self.assertRaises(ValueError, self.type2test, [-10**100]) |
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93 self.assertRaises(ValueError, self.type2test, [256]) |
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94 self.assertRaises(ValueError, self.type2test, [257]) |
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95 self.assertRaises(ValueError, self.type2test, [sys.maxint]) |
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96 self.assertRaises(ValueError, self.type2test, [sys.maxint+1]) |
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97 self.assertRaises(ValueError, self.type2test, [10**100]) |
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98 |
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99 def test_compare(self): |
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100 b1 = self.type2test([1, 2, 3]) |
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101 b2 = self.type2test([1, 2, 3]) |
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102 b3 = self.type2test([1, 3]) |
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103 |
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104 self.assertEqual(b1, b2) |
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105 self.failUnless(b2 != b3) |
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106 self.failUnless(b1 <= b2) |
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107 self.failUnless(b1 <= b3) |
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108 self.failUnless(b1 < b3) |
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109 self.failUnless(b1 >= b2) |
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110 self.failUnless(b3 >= b2) |
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111 self.failUnless(b3 > b2) |
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112 |
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113 self.failIf(b1 != b2) |
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114 self.failIf(b2 == b3) |
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115 self.failIf(b1 > b2) |
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116 self.failIf(b1 > b3) |
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117 self.failIf(b1 >= b3) |
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118 self.failIf(b1 < b2) |
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119 self.failIf(b3 < b2) |
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120 self.failIf(b3 <= b2) |
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121 |
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122 def test_compare_to_str(self): |
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123 warnings.simplefilter('ignore', BytesWarning) |
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124 # Byte comparisons with unicode should always fail! |
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125 # Test this for all expected byte orders and Unicode character sizes |
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126 self.assertEqual(self.type2test(b"\0a\0b\0c") == u"abc", False) |
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127 self.assertEqual(self.type2test(b"\0\0\0a\0\0\0b\0\0\0c") == u"abc", False) |
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128 self.assertEqual(self.type2test(b"a\0b\0c\0") == u"abc", False) |
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129 self.assertEqual(self.type2test(b"a\0\0\0b\0\0\0c\0\0\0") == u"abc", False) |
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130 self.assertEqual(self.type2test() == unicode(), False) |
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131 self.assertEqual(self.type2test() != unicode(), True) |
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132 |
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133 def test_reversed(self): |
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134 input = list(map(ord, "Hello")) |
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135 b = self.type2test(input) |
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136 output = list(reversed(b)) |
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137 input.reverse() |
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138 self.assertEqual(output, input) |
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139 |
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140 def test_getslice(self): |
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141 def by(s): |
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142 return self.type2test(map(ord, s)) |
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143 b = by("Hello, world") |
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144 |
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145 self.assertEqual(b[:5], by("Hello")) |
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146 self.assertEqual(b[1:5], by("ello")) |
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147 self.assertEqual(b[5:7], by(", ")) |
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148 self.assertEqual(b[7:], by("world")) |
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149 self.assertEqual(b[7:12], by("world")) |
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150 self.assertEqual(b[7:100], by("world")) |
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151 |
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152 self.assertEqual(b[:-7], by("Hello")) |
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153 self.assertEqual(b[-11:-7], by("ello")) |
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154 self.assertEqual(b[-7:-5], by(", ")) |
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155 self.assertEqual(b[-5:], by("world")) |
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156 self.assertEqual(b[-5:12], by("world")) |
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157 self.assertEqual(b[-5:100], by("world")) |
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158 self.assertEqual(b[-100:5], by("Hello")) |
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159 |
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160 def test_extended_getslice(self): |
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161 # Test extended slicing by comparing with list slicing. |
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162 L = list(range(255)) |
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163 b = self.type2test(L) |
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164 indices = (0, None, 1, 3, 19, 100, -1, -2, -31, -100) |
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165 for start in indices: |
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166 for stop in indices: |
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167 # Skip step 0 (invalid) |
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168 for step in indices[1:]: |
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169 self.assertEqual(b[start:stop:step], self.type2test(L[start:stop:step])) |
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170 |
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171 def test_encoding(self): |
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172 sample = u"Hello world\n\u1234\u5678\u9abc\udef0" |
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173 for enc in ("utf8", "utf16"): |
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174 b = self.type2test(sample, enc) |
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175 self.assertEqual(b, self.type2test(sample.encode(enc))) |
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176 self.assertRaises(UnicodeEncodeError, self.type2test, sample, "latin1") |
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177 b = self.type2test(sample, "latin1", "ignore") |
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178 self.assertEqual(b, self.type2test(sample[:-4], "utf-8")) |
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179 |
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180 def test_decode(self): |
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181 sample = u"Hello world\n\u1234\u5678\u9abc\def0\def0" |
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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.decode(enc), sample) |
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185 sample = u"Hello world\n\x80\x81\xfe\xff" |
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186 b = self.type2test(sample, "latin1") |
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187 self.assertRaises(UnicodeDecodeError, b.decode, "utf8") |
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188 self.assertEqual(b.decode("utf8", "ignore"), "Hello world\n") |
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189 |
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190 def test_from_int(self): |
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191 b = self.type2test(0) |
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192 self.assertEqual(b, self.type2test()) |
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193 b = self.type2test(10) |
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194 self.assertEqual(b, self.type2test([0]*10)) |
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195 b = self.type2test(10000) |
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196 self.assertEqual(b, self.type2test([0]*10000)) |
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197 |
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198 def test_concat(self): |
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199 b1 = self.type2test(b"abc") |
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200 b2 = self.type2test(b"def") |
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201 self.assertEqual(b1 + b2, b"abcdef") |
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202 self.assertEqual(b1 + bytes(b"def"), b"abcdef") |
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203 self.assertEqual(bytes(b"def") + b1, b"defabc") |
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204 self.assertRaises(TypeError, lambda: b1 + u"def") |
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205 self.assertRaises(TypeError, lambda: u"abc" + b2) |
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206 |
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207 def test_repeat(self): |
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208 for b in b"abc", self.type2test(b"abc"): |
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209 self.assertEqual(b * 3, b"abcabcabc") |
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210 self.assertEqual(b * 0, b"") |
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211 self.assertEqual(b * -1, b"") |
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212 self.assertRaises(TypeError, lambda: b * 3.14) |
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213 self.assertRaises(TypeError, lambda: 3.14 * b) |
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214 # XXX Shouldn't bytes and bytearray agree on what to raise? |
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215 self.assertRaises((OverflowError, MemoryError), |
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216 lambda: b * sys.maxsize) |
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217 |
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218 def test_repeat_1char(self): |
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219 self.assertEqual(self.type2test(b'x')*100, self.type2test([ord('x')]*100)) |
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220 |
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221 def test_contains(self): |
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222 b = self.type2test(b"abc") |
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223 self.failUnless(ord('a') in b) |
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224 self.failUnless(int(ord('a')) in b) |
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225 self.failIf(200 in b) |
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226 self.failIf(200 in b) |
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227 self.assertRaises(ValueError, lambda: 300 in b) |
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228 self.assertRaises(ValueError, lambda: -1 in b) |
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229 self.assertRaises(TypeError, lambda: None in b) |
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230 self.assertRaises(TypeError, lambda: float(ord('a')) in b) |
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231 self.assertRaises(TypeError, lambda: u"a" in b) |
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232 for f in bytes, bytearray: |
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233 self.failUnless(f(b"") in b) |
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234 self.failUnless(f(b"a") in b) |
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235 self.failUnless(f(b"b") in b) |
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236 self.failUnless(f(b"c") in b) |
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237 self.failUnless(f(b"ab") in b) |
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238 self.failUnless(f(b"bc") in b) |
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239 self.failUnless(f(b"abc") in b) |
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240 self.failIf(f(b"ac") in b) |
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241 self.failIf(f(b"d") in b) |
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242 self.failIf(f(b"dab") in b) |
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243 self.failIf(f(b"abd") in b) |
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244 |
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245 def test_fromhex(self): |
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246 self.assertRaises(TypeError, self.type2test.fromhex) |
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247 self.assertRaises(TypeError, self.type2test.fromhex, 1) |
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248 self.assertEquals(self.type2test.fromhex(u''), self.type2test()) |
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249 b = bytearray([0x1a, 0x2b, 0x30]) |
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250 self.assertEquals(self.type2test.fromhex(u'1a2B30'), b) |
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251 self.assertEquals(self.type2test.fromhex(u' 1A 2B 30 '), b) |
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252 self.assertEquals(self.type2test.fromhex(u'0000'), b'\0\0') |
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253 self.assertRaises(TypeError, self.type2test.fromhex, b'1B') |
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254 self.assertRaises(ValueError, self.type2test.fromhex, u'a') |
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255 self.assertRaises(ValueError, self.type2test.fromhex, u'rt') |
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256 self.assertRaises(ValueError, self.type2test.fromhex, u'1a b cd') |
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257 self.assertRaises(ValueError, self.type2test.fromhex, u'\x00') |
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258 self.assertRaises(ValueError, self.type2test.fromhex, u'12 \x00 34') |
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259 |
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260 def test_join(self): |
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261 self.assertEqual(self.type2test(b"").join([]), b"") |
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262 self.assertEqual(self.type2test(b"").join([b""]), b"") |
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263 for lst in [[b"abc"], [b"a", b"bc"], [b"ab", b"c"], [b"a", b"b", b"c"]]: |
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264 lst = list(map(self.type2test, lst)) |
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265 self.assertEqual(self.type2test(b"").join(lst), b"abc") |
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266 self.assertEqual(self.type2test(b"").join(tuple(lst)), b"abc") |
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267 self.assertEqual(self.type2test(b"").join(iter(lst)), b"abc") |
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268 self.assertEqual(self.type2test(b".").join([b"ab", b"cd"]), b"ab.cd") |
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269 # XXX more... |
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270 |
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271 def test_index(self): |
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272 b = self.type2test(b'parrot') |
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273 self.assertEqual(b.index('p'), 0) |
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274 self.assertEqual(b.index('rr'), 2) |
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275 self.assertEqual(b.index('t'), 5) |
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276 self.assertRaises(ValueError, lambda: b.index('w')) |
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277 |
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278 def test_count(self): |
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279 b = self.type2test(b'mississippi') |
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280 self.assertEqual(b.count(b'i'), 4) |
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281 self.assertEqual(b.count(b'ss'), 2) |
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282 self.assertEqual(b.count(b'w'), 0) |
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283 |
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284 def test_startswith(self): |
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285 b = self.type2test(b'hello') |
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286 self.assertFalse(self.type2test().startswith(b"anything")) |
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287 self.assertTrue(b.startswith(b"hello")) |
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288 self.assertTrue(b.startswith(b"hel")) |
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289 self.assertTrue(b.startswith(b"h")) |
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290 self.assertFalse(b.startswith(b"hellow")) |
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291 self.assertFalse(b.startswith(b"ha")) |
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292 |
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293 def test_endswith(self): |
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294 b = self.type2test(b'hello') |
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295 self.assertFalse(bytearray().endswith(b"anything")) |
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296 self.assertTrue(b.endswith(b"hello")) |
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297 self.assertTrue(b.endswith(b"llo")) |
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298 self.assertTrue(b.endswith(b"o")) |
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299 self.assertFalse(b.endswith(b"whello")) |
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300 self.assertFalse(b.endswith(b"no")) |
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301 |
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302 def test_find(self): |
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303 b = self.type2test(b'mississippi') |
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304 self.assertEqual(b.find(b'ss'), 2) |
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305 self.assertEqual(b.find(b'ss', 3), 5) |
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306 self.assertEqual(b.find(b'ss', 1, 7), 2) |
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307 self.assertEqual(b.find(b'ss', 1, 3), -1) |
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308 self.assertEqual(b.find(b'w'), -1) |
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309 self.assertEqual(b.find(b'mississippian'), -1) |
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310 |
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311 def test_rfind(self): |
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312 b = self.type2test(b'mississippi') |
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313 self.assertEqual(b.rfind(b'ss'), 5) |
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314 self.assertEqual(b.rfind(b'ss', 3), 5) |
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315 self.assertEqual(b.rfind(b'ss', 0, 6), 2) |
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316 self.assertEqual(b.rfind(b'w'), -1) |
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317 self.assertEqual(b.rfind(b'mississippian'), -1) |
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318 |
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319 def test_index(self): |
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320 b = self.type2test(b'world') |
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321 self.assertEqual(b.index(b'w'), 0) |
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322 self.assertEqual(b.index(b'orl'), 1) |
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323 self.assertRaises(ValueError, b.index, b'worm') |
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324 self.assertRaises(ValueError, b.index, b'ldo') |
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325 |
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326 def test_rindex(self): |
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327 # XXX could be more rigorous |
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328 b = self.type2test(b'world') |
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329 self.assertEqual(b.rindex(b'w'), 0) |
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330 self.assertEqual(b.rindex(b'orl'), 1) |
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331 self.assertRaises(ValueError, b.rindex, b'worm') |
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332 self.assertRaises(ValueError, b.rindex, b'ldo') |
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333 |
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334 def test_replace(self): |
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335 b = self.type2test(b'mississippi') |
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336 self.assertEqual(b.replace(b'i', b'a'), b'massassappa') |
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337 self.assertEqual(b.replace(b'ss', b'x'), b'mixixippi') |
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338 |
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339 def test_split(self): |
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340 b = self.type2test(b'mississippi') |
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341 self.assertEqual(b.split(b'i'), [b'm', b'ss', b'ss', b'pp', b'']) |
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342 self.assertEqual(b.split(b'ss'), [b'mi', b'i', b'ippi']) |
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343 self.assertEqual(b.split(b'w'), [b]) |
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344 |
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345 def test_split_whitespace(self): |
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346 for b in (b' arf barf ', b'arf\tbarf', b'arf\nbarf', b'arf\rbarf', |
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347 b'arf\fbarf', b'arf\vbarf'): |
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348 b = self.type2test(b) |
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349 self.assertEqual(b.split(), [b'arf', b'barf']) |
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350 self.assertEqual(b.split(None), [b'arf', b'barf']) |
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351 self.assertEqual(b.split(None, 2), [b'arf', b'barf']) |
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352 for b in (b'a\x1Cb', b'a\x1Db', b'a\x1Eb', b'a\x1Fb'): |
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353 b = self.type2test(b) |
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354 self.assertEqual(b.split(), [b]) |
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355 self.assertEqual(self.type2test(b' a bb c ').split(None, 0), [b'a bb c ']) |
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356 self.assertEqual(self.type2test(b' a bb c ').split(None, 1), [b'a', b'bb c ']) |
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357 self.assertEqual(self.type2test(b' a bb c ').split(None, 2), [b'a', b'bb', b'c ']) |
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358 self.assertEqual(self.type2test(b' a bb c ').split(None, 3), [b'a', b'bb', b'c']) |
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359 |
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360 def test_split_string_error(self): |
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361 self.assertRaises(TypeError, self.type2test(b'a b').split, u' ') |
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362 |
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363 def test_rsplit(self): |
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364 b = self.type2test(b'mississippi') |
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365 self.assertEqual(b.rsplit(b'i'), [b'm', b'ss', b'ss', b'pp', b'']) |
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366 self.assertEqual(b.rsplit(b'ss'), [b'mi', b'i', b'ippi']) |
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367 self.assertEqual(b.rsplit(b'w'), [b]) |
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368 |
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369 def test_rsplit_whitespace(self): |
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370 for b in (b' arf barf ', b'arf\tbarf', b'arf\nbarf', b'arf\rbarf', |
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371 b'arf\fbarf', b'arf\vbarf'): |
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372 b = self.type2test(b) |
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373 self.assertEqual(b.rsplit(), [b'arf', b'barf']) |
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374 self.assertEqual(b.rsplit(None), [b'arf', b'barf']) |
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375 self.assertEqual(b.rsplit(None, 2), [b'arf', b'barf']) |
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376 self.assertEqual(self.type2test(b' a bb c ').rsplit(None, 0), [b' a bb c']) |
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377 self.assertEqual(self.type2test(b' a bb c ').rsplit(None, 1), [b' a bb', b'c']) |
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378 self.assertEqual(self.type2test(b' a bb c ').rsplit(None, 2), [b' a', b'bb', b'c']) |
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379 self.assertEqual(self.type2test(b' a bb c ').rsplit(None, 3), [b'a', b'bb', b'c']) |
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380 |
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381 def test_rsplit_string_error(self): |
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382 self.assertRaises(TypeError, self.type2test(b'a b').rsplit, u' ') |
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383 |
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384 def test_rsplit_unicodewhitespace(self): |
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385 b = self.type2test(b"\x09\x0A\x0B\x0C\x0D\x1C\x1D\x1E\x1F") |
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386 self.assertEqual(b.split(), [b'\x1c\x1d\x1e\x1f']) |
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387 self.assertEqual(b.rsplit(), [b'\x1c\x1d\x1e\x1f']) |
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388 |
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389 def test_partition(self): |
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390 b = self.type2test(b'mississippi') |
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391 self.assertEqual(b.partition(b'ss'), (b'mi', b'ss', b'issippi')) |
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392 self.assertEqual(b.rpartition(b'w'), (b'', b'', b'mississippi')) |
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393 |
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394 def test_rpartition(self): |
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395 b = self.type2test(b'mississippi') |
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396 self.assertEqual(b.rpartition(b'ss'), (b'missi', b'ss', b'ippi')) |
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397 self.assertEqual(b.rpartition(b'i'), (b'mississipp', b'i', b'')) |
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398 |
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399 def test_pickling(self): |
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400 for proto in range(pickle.HIGHEST_PROTOCOL + 1): |
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401 for b in b"", b"a", b"abc", b"\xffab\x80", b"\0\0\377\0\0": |
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402 b = self.type2test(b) |
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403 ps = pickle.dumps(b, proto) |
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404 q = pickle.loads(ps) |
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405 self.assertEqual(b, q) |
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406 |
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407 def test_strip(self): |
|
408 b = self.type2test(b'mississippi') |
|
409 self.assertEqual(b.strip(b'i'), b'mississipp') |
|
410 self.assertEqual(b.strip(b'm'), b'ississippi') |
|
411 self.assertEqual(b.strip(b'pi'), b'mississ') |
|
412 self.assertEqual(b.strip(b'im'), b'ssissipp') |
|
413 self.assertEqual(b.strip(b'pim'), b'ssiss') |
|
414 self.assertEqual(b.strip(b), b'') |
|
415 |
|
416 def test_lstrip(self): |
|
417 b = self.type2test(b'mississippi') |
|
418 self.assertEqual(b.lstrip(b'i'), b'mississippi') |
|
419 self.assertEqual(b.lstrip(b'm'), b'ississippi') |
|
420 self.assertEqual(b.lstrip(b'pi'), b'mississippi') |
|
421 self.assertEqual(b.lstrip(b'im'), b'ssissippi') |
|
422 self.assertEqual(b.lstrip(b'pim'), b'ssissippi') |
|
423 |
|
424 def test_rstrip(self): |
|
425 b = self.type2test(b'mississippi') |
|
426 self.assertEqual(b.rstrip(b'i'), b'mississipp') |
|
427 self.assertEqual(b.rstrip(b'm'), b'mississippi') |
|
428 self.assertEqual(b.rstrip(b'pi'), b'mississ') |
|
429 self.assertEqual(b.rstrip(b'im'), b'mississipp') |
|
430 self.assertEqual(b.rstrip(b'pim'), b'mississ') |
|
431 |
|
432 def test_strip_whitespace(self): |
|
433 b = self.type2test(b' \t\n\r\f\vabc \t\n\r\f\v') |
|
434 self.assertEqual(b.strip(), b'abc') |
|
435 self.assertEqual(b.lstrip(), b'abc \t\n\r\f\v') |
|
436 self.assertEqual(b.rstrip(), b' \t\n\r\f\vabc') |
|
437 |
|
438 def XXXtest_strip_bytearray(self): |
|
439 # XXX memoryview not available |
|
440 self.assertEqual(self.type2test(b'abc').strip(memoryview(b'ac')), b'b') |
|
441 self.assertEqual(self.type2test(b'abc').lstrip(memoryview(b'ac')), b'bc') |
|
442 self.assertEqual(self.type2test(b'abc').rstrip(memoryview(b'ac')), b'ab') |
|
443 |
|
444 def test_strip_string_error(self): |
|
445 self.assertRaises(TypeError, self.type2test(b'abc').strip, u'b') |
|
446 self.assertRaises(TypeError, self.type2test(b'abc').lstrip, u'b') |
|
447 self.assertRaises(TypeError, self.type2test(b'abc').rstrip, u'b') |
|
448 |
|
449 def test_ord(self): |
|
450 b = self.type2test(b'\0A\x7f\x80\xff') |
|
451 self.assertEqual([ord(b[i:i+1]) for i in range(len(b))], |
|
452 [0, 65, 127, 128, 255]) |
|
453 |
|
454 |
|
455 class ByteArrayTest(BaseBytesTest): |
|
456 type2test = bytearray |
|
457 |
|
458 def test_nohash(self): |
|
459 self.assertRaises(TypeError, hash, bytearray()) |
|
460 |
|
461 def test_bytearray_api(self): |
|
462 short_sample = b"Hello world\n" |
|
463 sample = short_sample + b"\0"*(20 - len(short_sample)) |
|
464 tfn = tempfile.mktemp() |
|
465 try: |
|
466 # Prepare |
|
467 with open(tfn, "wb") as f: |
|
468 f.write(short_sample) |
|
469 # Test readinto |
|
470 with open(tfn, "rb") as f: |
|
471 b = bytearray(20) |
|
472 n = f.readinto(b) |
|
473 self.assertEqual(n, len(short_sample)) |
|
474 # Python 2.x |
|
475 b_sample = (ord(s) for s in sample) |
|
476 self.assertEqual(list(b), list(b_sample)) |
|
477 # Test writing in binary mode |
|
478 with open(tfn, "wb") as f: |
|
479 f.write(b) |
|
480 with open(tfn, "rb") as f: |
|
481 self.assertEqual(f.read(), sample) |
|
482 # Text mode is ambiguous; don't test |
|
483 finally: |
|
484 try: |
|
485 os.remove(tfn) |
|
486 except os.error: |
|
487 pass |
|
488 |
|
489 def test_reverse(self): |
|
490 b = bytearray(b'hello') |
|
491 self.assertEqual(b.reverse(), None) |
|
492 self.assertEqual(b, b'olleh') |
|
493 b = bytearray(b'hello1') # test even number of items |
|
494 b.reverse() |
|
495 self.assertEqual(b, b'1olleh') |
|
496 b = bytearray() |
|
497 b.reverse() |
|
498 self.assertFalse(b) |
|
499 |
|
500 def test_regexps(self): |
|
501 def by(s): |
|
502 return bytearray(map(ord, s)) |
|
503 b = by("Hello, world") |
|
504 self.assertEqual(re.findall(r"\w+", b), [by("Hello"), by("world")]) |
|
505 |
|
506 def test_setitem(self): |
|
507 b = bytearray([1, 2, 3]) |
|
508 b[1] = 100 |
|
509 self.assertEqual(b, bytearray([1, 100, 3])) |
|
510 b[-1] = 200 |
|
511 self.assertEqual(b, bytearray([1, 100, 200])) |
|
512 b[0] = Indexable(10) |
|
513 self.assertEqual(b, bytearray([10, 100, 200])) |
|
514 try: |
|
515 b[3] = 0 |
|
516 self.fail("Didn't raise IndexError") |
|
517 except IndexError: |
|
518 pass |
|
519 try: |
|
520 b[-10] = 0 |
|
521 self.fail("Didn't raise IndexError") |
|
522 except IndexError: |
|
523 pass |
|
524 try: |
|
525 b[0] = 256 |
|
526 self.fail("Didn't raise ValueError") |
|
527 except ValueError: |
|
528 pass |
|
529 try: |
|
530 b[0] = Indexable(-1) |
|
531 self.fail("Didn't raise ValueError") |
|
532 except ValueError: |
|
533 pass |
|
534 try: |
|
535 b[0] = None |
|
536 self.fail("Didn't raise TypeError") |
|
537 except TypeError: |
|
538 pass |
|
539 |
|
540 def test_delitem(self): |
|
541 b = bytearray(range(10)) |
|
542 del b[0] |
|
543 self.assertEqual(b, bytearray(range(1, 10))) |
|
544 del b[-1] |
|
545 self.assertEqual(b, bytearray(range(1, 9))) |
|
546 del b[4] |
|
547 self.assertEqual(b, bytearray([1, 2, 3, 4, 6, 7, 8])) |
|
548 |
|
549 def test_setslice(self): |
|
550 b = bytearray(range(10)) |
|
551 self.assertEqual(list(b), list(range(10))) |
|
552 |
|
553 b[0:5] = bytearray([1, 1, 1, 1, 1]) |
|
554 self.assertEqual(b, bytearray([1, 1, 1, 1, 1, 5, 6, 7, 8, 9])) |
|
555 |
|
556 del b[0:-5] |
|
557 self.assertEqual(b, bytearray([5, 6, 7, 8, 9])) |
|
558 |
|
559 b[0:0] = bytearray([0, 1, 2, 3, 4]) |
|
560 self.assertEqual(b, bytearray(range(10))) |
|
561 |
|
562 b[-7:-3] = bytearray([100, 101]) |
|
563 self.assertEqual(b, bytearray([0, 1, 2, 100, 101, 7, 8, 9])) |
|
564 |
|
565 b[3:5] = [3, 4, 5, 6] |
|
566 self.assertEqual(b, bytearray(range(10))) |
|
567 |
|
568 b[3:0] = [42, 42, 42] |
|
569 self.assertEqual(b, bytearray([0, 1, 2, 42, 42, 42, 3, 4, 5, 6, 7, 8, 9])) |
|
570 |
|
571 def test_extended_set_del_slice(self): |
|
572 indices = (0, None, 1, 3, 19, 300, -1, -2, -31, -300) |
|
573 for start in indices: |
|
574 for stop in indices: |
|
575 # Skip invalid step 0 |
|
576 for step in indices[1:]: |
|
577 L = list(range(255)) |
|
578 b = bytearray(L) |
|
579 # Make sure we have a slice of exactly the right length, |
|
580 # but with different data. |
|
581 data = L[start:stop:step] |
|
582 data.reverse() |
|
583 L[start:stop:step] = data |
|
584 b[start:stop:step] = data |
|
585 self.assertEquals(b, bytearray(L)) |
|
586 |
|
587 del L[start:stop:step] |
|
588 del b[start:stop:step] |
|
589 self.assertEquals(b, bytearray(L)) |
|
590 |
|
591 def test_setslice_trap(self): |
|
592 # This test verifies that we correctly handle assigning self |
|
593 # to a slice of self (the old Lambert Meertens trap). |
|
594 b = bytearray(range(256)) |
|
595 b[8:] = b |
|
596 self.assertEqual(b, bytearray(list(range(8)) + list(range(256)))) |
|
597 |
|
598 def test_iconcat(self): |
|
599 b = bytearray(b"abc") |
|
600 b1 = b |
|
601 b += b"def" |
|
602 self.assertEqual(b, b"abcdef") |
|
603 self.assertEqual(b, b1) |
|
604 self.failUnless(b is b1) |
|
605 b += b"xyz" |
|
606 self.assertEqual(b, b"abcdefxyz") |
|
607 try: |
|
608 b += u"" |
|
609 except TypeError: |
|
610 pass |
|
611 else: |
|
612 self.fail("bytes += unicode didn't raise TypeError") |
|
613 |
|
614 def test_irepeat(self): |
|
615 b = bytearray(b"abc") |
|
616 b1 = b |
|
617 b *= 3 |
|
618 self.assertEqual(b, b"abcabcabc") |
|
619 self.assertEqual(b, b1) |
|
620 self.failUnless(b is b1) |
|
621 |
|
622 def test_irepeat_1char(self): |
|
623 b = bytearray(b"x") |
|
624 b1 = b |
|
625 b *= 100 |
|
626 self.assertEqual(b, b"x"*100) |
|
627 self.assertEqual(b, b1) |
|
628 self.failUnless(b is b1) |
|
629 |
|
630 def test_alloc(self): |
|
631 b = bytearray() |
|
632 alloc = b.__alloc__() |
|
633 self.assert_(alloc >= 0) |
|
634 seq = [alloc] |
|
635 for i in range(100): |
|
636 b += b"x" |
|
637 alloc = b.__alloc__() |
|
638 self.assert_(alloc >= len(b)) |
|
639 if alloc not in seq: |
|
640 seq.append(alloc) |
|
641 |
|
642 def test_extend(self): |
|
643 orig = b'hello' |
|
644 a = bytearray(orig) |
|
645 a.extend(a) |
|
646 self.assertEqual(a, orig + orig) |
|
647 self.assertEqual(a[5:], orig) |
|
648 a = bytearray(b'') |
|
649 # Test iterators that don't have a __length_hint__ |
|
650 a.extend(map(ord, orig * 25)) |
|
651 a.extend(ord(x) for x in orig * 25) |
|
652 self.assertEqual(a, orig * 50) |
|
653 self.assertEqual(a[-5:], orig) |
|
654 a = bytearray(b'') |
|
655 a.extend(iter(map(ord, orig * 50))) |
|
656 self.assertEqual(a, orig * 50) |
|
657 self.assertEqual(a[-5:], orig) |
|
658 a = bytearray(b'') |
|
659 a.extend(list(map(ord, orig * 50))) |
|
660 self.assertEqual(a, orig * 50) |
|
661 self.assertEqual(a[-5:], orig) |
|
662 a = bytearray(b'') |
|
663 self.assertRaises(ValueError, a.extend, [0, 1, 2, 256]) |
|
664 self.assertRaises(ValueError, a.extend, [0, 1, 2, -1]) |
|
665 self.assertEqual(len(a), 0) |
|
666 a = bytearray(b'') |
|
667 a.extend([Indexable(ord('a'))]) |
|
668 self.assertEqual(a, b'a') |
|
669 |
|
670 def test_remove(self): |
|
671 b = bytearray(b'hello') |
|
672 b.remove(ord('l')) |
|
673 self.assertEqual(b, b'helo') |
|
674 b.remove(ord('l')) |
|
675 self.assertEqual(b, b'heo') |
|
676 self.assertRaises(ValueError, lambda: b.remove(ord('l'))) |
|
677 self.assertRaises(ValueError, lambda: b.remove(400)) |
|
678 self.assertRaises(TypeError, lambda: b.remove(u'e')) |
|
679 # remove first and last |
|
680 b.remove(ord('o')) |
|
681 b.remove(ord('h')) |
|
682 self.assertEqual(b, b'e') |
|
683 self.assertRaises(TypeError, lambda: b.remove(u'e')) |
|
684 b.remove(Indexable(ord('e'))) |
|
685 self.assertEqual(b, b'') |
|
686 |
|
687 def test_pop(self): |
|
688 b = bytearray(b'world') |
|
689 self.assertEqual(b.pop(), ord('d')) |
|
690 self.assertEqual(b.pop(0), ord('w')) |
|
691 self.assertEqual(b.pop(-2), ord('r')) |
|
692 self.assertRaises(IndexError, lambda: b.pop(10)) |
|
693 self.assertRaises(OverflowError, lambda: bytearray().pop()) |
|
694 |
|
695 def test_nosort(self): |
|
696 self.assertRaises(AttributeError, lambda: bytearray().sort()) |
|
697 |
|
698 def test_append(self): |
|
699 b = bytearray(b'hell') |
|
700 b.append(ord('o')) |
|
701 self.assertEqual(b, b'hello') |
|
702 self.assertEqual(b.append(100), None) |
|
703 b = bytearray() |
|
704 b.append(ord('A')) |
|
705 self.assertEqual(len(b), 1) |
|
706 self.assertRaises(TypeError, lambda: b.append(u'o')) |
|
707 b = bytearray() |
|
708 b.append(Indexable(ord('A'))) |
|
709 self.assertEqual(b, b'A') |
|
710 |
|
711 def test_insert(self): |
|
712 b = bytearray(b'msssspp') |
|
713 b.insert(1, ord('i')) |
|
714 b.insert(4, ord('i')) |
|
715 b.insert(-2, ord('i')) |
|
716 b.insert(1000, ord('i')) |
|
717 self.assertEqual(b, b'mississippi') |
|
718 # allowed in 2.6 |
|
719 #self.assertRaises(TypeError, lambda: b.insert(0, b'1')) |
|
720 b = bytearray() |
|
721 b.insert(0, Indexable(ord('A'))) |
|
722 self.assertEqual(b, b'A') |
|
723 |
|
724 def test_copied(self): |
|
725 # Issue 4348. Make sure that operations that don't mutate the array |
|
726 # copy the bytes. |
|
727 b = bytearray(b'abc') |
|
728 #self.assertFalse(b is b.replace(b'abc', b'cde', 0)) |
|
729 |
|
730 t = bytearray([i for i in range(256)]) |
|
731 x = bytearray(b'') |
|
732 self.assertFalse(x is x.translate(t)) |
|
733 |
|
734 def test_partition_bytearray_doesnt_share_nullstring(self): |
|
735 a, b, c = bytearray(b"x").partition(b"y") |
|
736 self.assertEqual(b, b"") |
|
737 self.assertEqual(c, b"") |
|
738 self.assert_(b is not c) |
|
739 b += b"!" |
|
740 self.assertEqual(c, b"") |
|
741 a, b, c = bytearray(b"x").partition(b"y") |
|
742 self.assertEqual(b, b"") |
|
743 self.assertEqual(c, b"") |
|
744 # Same for rpartition |
|
745 b, c, a = bytearray(b"x").rpartition(b"y") |
|
746 self.assertEqual(b, b"") |
|
747 self.assertEqual(c, b"") |
|
748 self.assert_(b is not c) |
|
749 b += b"!" |
|
750 self.assertEqual(c, b"") |
|
751 c, b, a = bytearray(b"x").rpartition(b"y") |
|
752 self.assertEqual(b, b"") |
|
753 self.assertEqual(c, b"") |
|
754 |
|
755 |
|
756 class AssortedBytesTest(unittest.TestCase): |
|
757 # |
|
758 # Test various combinations of bytes and bytearray |
|
759 # |
|
760 |
|
761 def setUp(self): |
|
762 self.warning_filters = warnings.filters[:] |
|
763 |
|
764 def tearDown(self): |
|
765 warnings.filters = self.warning_filters |
|
766 |
|
767 def test_repr_str(self): |
|
768 warnings.simplefilter('ignore', BytesWarning) |
|
769 for f in str, repr: |
|
770 self.assertEqual(f(bytearray()), "bytearray(b'')") |
|
771 self.assertEqual(f(bytearray([0])), "bytearray(b'\\x00')") |
|
772 self.assertEqual(f(bytearray([0, 1, 254, 255])), |
|
773 "bytearray(b'\\x00\\x01\\xfe\\xff')") |
|
774 self.assertEqual(f(b"abc"), "b'abc'") |
|
775 self.assertEqual(f(b"'"), '''b"'"''') # ''' |
|
776 self.assertEqual(f(b"'\""), r"""b'\'"'""") # ' |
|
777 |
|
778 def test_compare_bytes_to_bytearray(self): |
|
779 self.assertEqual(b"abc" == bytes(b"abc"), True) |
|
780 self.assertEqual(b"ab" != bytes(b"abc"), True) |
|
781 self.assertEqual(b"ab" <= bytes(b"abc"), True) |
|
782 self.assertEqual(b"ab" < bytes(b"abc"), True) |
|
783 self.assertEqual(b"abc" >= bytes(b"ab"), True) |
|
784 self.assertEqual(b"abc" > bytes(b"ab"), True) |
|
785 |
|
786 self.assertEqual(b"abc" != bytes(b"abc"), False) |
|
787 self.assertEqual(b"ab" == bytes(b"abc"), False) |
|
788 self.assertEqual(b"ab" > bytes(b"abc"), False) |
|
789 self.assertEqual(b"ab" >= bytes(b"abc"), False) |
|
790 self.assertEqual(b"abc" < bytes(b"ab"), False) |
|
791 self.assertEqual(b"abc" <= bytes(b"ab"), False) |
|
792 |
|
793 self.assertEqual(bytes(b"abc") == b"abc", True) |
|
794 self.assertEqual(bytes(b"ab") != b"abc", True) |
|
795 self.assertEqual(bytes(b"ab") <= b"abc", True) |
|
796 self.assertEqual(bytes(b"ab") < b"abc", True) |
|
797 self.assertEqual(bytes(b"abc") >= b"ab", True) |
|
798 self.assertEqual(bytes(b"abc") > b"ab", True) |
|
799 |
|
800 self.assertEqual(bytes(b"abc") != b"abc", False) |
|
801 self.assertEqual(bytes(b"ab") == b"abc", False) |
|
802 self.assertEqual(bytes(b"ab") > b"abc", False) |
|
803 self.assertEqual(bytes(b"ab") >= b"abc", False) |
|
804 self.assertEqual(bytes(b"abc") < b"ab", False) |
|
805 self.assertEqual(bytes(b"abc") <= b"ab", False) |
|
806 |
|
807 def test_doc(self): |
|
808 self.failUnless(bytearray.__doc__ != None) |
|
809 self.failUnless(bytearray.__doc__.startswith("bytearray("), bytearray.__doc__) |
|
810 self.failUnless(bytes.__doc__ != None) |
|
811 self.failUnless(bytes.__doc__.startswith("bytes("), bytes.__doc__) |
|
812 |
|
813 def test_from_bytearray(self): |
|
814 sample = bytes(b"Hello world\n\x80\x81\xfe\xff") |
|
815 buf = memoryview(sample) |
|
816 b = bytearray(buf) |
|
817 self.assertEqual(b, bytearray(sample)) |
|
818 |
|
819 def test_to_str(self): |
|
820 warnings.simplefilter('ignore', BytesWarning) |
|
821 self.assertEqual(str(b''), "b''") |
|
822 self.assertEqual(str(b'x'), "b'x'") |
|
823 self.assertEqual(str(b'\x80'), "b'\\x80'") |
|
824 self.assertEqual(str(bytearray(b'')), "bytearray(b'')") |
|
825 self.assertEqual(str(bytearray(b'x')), "bytearray(b'x')") |
|
826 self.assertEqual(str(bytearray(b'\x80')), "bytearray(b'\\x80')") |
|
827 |
|
828 def test_literal(self): |
|
829 tests = [ |
|
830 (b"Wonderful spam", "Wonderful spam"), |
|
831 (br"Wonderful spam too", "Wonderful spam too"), |
|
832 (b"\xaa\x00\000\200", "\xaa\x00\000\200"), |
|
833 (br"\xaa\x00\000\200", r"\xaa\x00\000\200"), |
|
834 ] |
|
835 for b, s in tests: |
|
836 self.assertEqual(b, bytearray(s, 'latin-1')) |
|
837 for c in range(128, 256): |
|
838 self.assertRaises(SyntaxError, eval, |
|
839 'b"%s"' % chr(c)) |
|
840 |
|
841 def test_translate(self): |
|
842 b = b'hello' |
|
843 rosetta = bytearray(range(0, 256)) |
|
844 rosetta[ord('o')] = ord('e') |
|
845 c = b.translate(rosetta, b'l') |
|
846 self.assertEqual(b, b'hello') |
|
847 self.assertEqual(c, b'hee') |
|
848 |
|
849 def test_split_bytearray(self): |
|
850 self.assertEqual(b'a b'.split(memoryview(b' ')), [b'a', b'b']) |
|
851 |
|
852 def test_rsplit_bytearray(self): |
|
853 self.assertEqual(b'a b'.rsplit(memoryview(b' ')), [b'a', b'b']) |
|
854 |
|
855 # Optimizations: |
|
856 # __iter__? (optimization) |
|
857 # __reversed__? (optimization) |
|
858 |
|
859 # XXX More string methods? (Those that don't use character properties) |
|
860 |
|
861 # There are tests in string_tests.py that are more |
|
862 # comprehensive for things like split, partition, etc. |
|
863 # Unfortunately they are all bundled with tests that |
|
864 # are not appropriate for bytes |
|
865 |
|
866 # I've started porting some of those into bytearray_tests.py, we should port |
|
867 # the rest that make sense (the code can be cleaned up to use modern |
|
868 # unittest methods at the same time). |
|
869 |
|
870 class BytearrayPEP3137Test(unittest.TestCase, |
|
871 test.buffer_tests.MixinBytesBufferCommonTests): |
|
872 def marshal(self, x): |
|
873 return bytearray(x) |
|
874 |
|
875 def test_returns_new_copy(self): |
|
876 val = self.marshal(b'1234') |
|
877 # On immutable types these MAY return a reference to themselves |
|
878 # but on mutable types like bytearray they MUST return a new copy. |
|
879 for methname in ('zfill', 'rjust', 'ljust', 'center'): |
|
880 method = getattr(val, methname) |
|
881 newval = method(3) |
|
882 self.assertEqual(val, newval) |
|
883 self.assertTrue(val is not newval, |
|
884 methname+' returned self on a mutable object') |
|
885 |
|
886 |
|
887 class FixedStringTest(test.string_tests.BaseTest): |
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888 |
|
889 def fixtype(self, obj): |
|
890 if isinstance(obj, str): |
|
891 return obj.encode("utf-8") |
|
892 return super(FixedStringTest, self).fixtype(obj) |
|
893 |
|
894 # Currently the bytes containment testing uses a single integer |
|
895 # value. This may not be the final design, but until then the |
|
896 # bytes section with in a bytes containment not valid |
|
897 def test_contains(self): |
|
898 pass |
|
899 def test_expandtabs(self): |
|
900 pass |
|
901 def test_upper(self): |
|
902 pass |
|
903 def test_lower(self): |
|
904 pass |
|
905 def test_hash(self): |
|
906 # XXX check this out |
|
907 pass |
|
908 |
|
909 |
|
910 class ByteArrayAsStringTest(FixedStringTest): |
|
911 type2test = bytearray |
|
912 |
|
913 |
|
914 class ByteArraySubclass(bytearray): |
|
915 pass |
|
916 |
|
917 class ByteArraySubclassTest(unittest.TestCase): |
|
918 |
|
919 def test_basic(self): |
|
920 self.assert_(issubclass(ByteArraySubclass, bytearray)) |
|
921 self.assert_(isinstance(ByteArraySubclass(), bytearray)) |
|
922 |
|
923 a, b = b"abcd", b"efgh" |
|
924 _a, _b = ByteArraySubclass(a), ByteArraySubclass(b) |
|
925 |
|
926 # test comparison operators with subclass instances |
|
927 self.assert_(_a == _a) |
|
928 self.assert_(_a != _b) |
|
929 self.assert_(_a < _b) |
|
930 self.assert_(_a <= _b) |
|
931 self.assert_(_b >= _a) |
|
932 self.assert_(_b > _a) |
|
933 self.assert_(_a is not a) |
|
934 |
|
935 # test concat of subclass instances |
|
936 self.assertEqual(a + b, _a + _b) |
|
937 self.assertEqual(a + b, a + _b) |
|
938 self.assertEqual(a + b, _a + b) |
|
939 |
|
940 # test repeat |
|
941 self.assert_(a*5 == _a*5) |
|
942 |
|
943 def test_join(self): |
|
944 # Make sure join returns a NEW object for single item sequences |
|
945 # involving a subclass. |
|
946 # Make sure that it is of the appropriate type. |
|
947 s1 = ByteArraySubclass(b"abcd") |
|
948 s2 = bytearray().join([s1]) |
|
949 self.assert_(s1 is not s2) |
|
950 self.assert_(type(s2) is bytearray, type(s2)) |
|
951 |
|
952 # Test reverse, calling join on subclass |
|
953 s3 = s1.join([b"abcd"]) |
|
954 self.assert_(type(s3) is bytearray) |
|
955 |
|
956 def test_pickle(self): |
|
957 a = ByteArraySubclass(b"abcd") |
|
958 a.x = 10 |
|
959 a.y = ByteArraySubclass(b"efgh") |
|
960 for proto in range(pickle.HIGHEST_PROTOCOL + 1): |
|
961 b = pickle.loads(pickle.dumps(a, proto)) |
|
962 self.assertNotEqual(id(a), id(b)) |
|
963 self.assertEqual(a, b) |
|
964 self.assertEqual(a.x, b.x) |
|
965 self.assertEqual(a.y, b.y) |
|
966 self.assertEqual(type(a), type(b)) |
|
967 self.assertEqual(type(a.y), type(b.y)) |
|
968 |
|
969 def test_copy(self): |
|
970 a = ByteArraySubclass(b"abcd") |
|
971 a.x = 10 |
|
972 a.y = ByteArraySubclass(b"efgh") |
|
973 for copy_method in (copy.copy, copy.deepcopy): |
|
974 b = copy_method(a) |
|
975 self.assertNotEqual(id(a), id(b)) |
|
976 self.assertEqual(a, b) |
|
977 self.assertEqual(a.x, b.x) |
|
978 self.assertEqual(a.y, b.y) |
|
979 self.assertEqual(type(a), type(b)) |
|
980 self.assertEqual(type(a.y), type(b.y)) |
|
981 |
|
982 def test_init_override(self): |
|
983 class subclass(bytearray): |
|
984 def __init__(self, newarg=1, *args, **kwargs): |
|
985 bytearray.__init__(self, *args, **kwargs) |
|
986 x = subclass(4, source=b"abcd") |
|
987 self.assertEqual(x, b"abcd") |
|
988 x = subclass(newarg=4, source=b"abcd") |
|
989 self.assertEqual(x, b"abcd") |
|
990 |
|
991 def test_main(): |
|
992 #test.test_support.run_unittest(BytesTest) |
|
993 #test.test_support.run_unittest(AssortedBytesTest) |
|
994 #test.test_support.run_unittest(BytesAsStringTest) |
|
995 test.test_support.run_unittest( |
|
996 ByteArrayTest, |
|
997 ByteArrayAsStringTest, |
|
998 ByteArraySubclassTest, |
|
999 BytearrayPEP3137Test) |
|
1000 |
|
1001 if __name__ == "__main__": |
|
1002 test_main() |