Mercurial > hg
annotate tests/test-cbor.py @ 48520:791f5d5f7a96
hg-core: dedup LazyAncestors Iterator impl
… Which has been moved to the vcsgraph crate.
AncestorsIterator cannot yet be removed because it is still being used in
hg-core.
Differential Revision: https://phab.mercurial-scm.org/D11948
author | pacien <pacien.trangirard@pacien.net> |
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date | Fri, 10 Dec 2021 16:25:02 +0100 |
parents | 89a2afe31e82 |
children | 6000f5b25c9b |
rev | line source |
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1 from __future__ import absolute_import |
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2 |
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3 import os |
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4 import sys |
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5 import unittest |
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6 |
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7 # TODO migrate to canned cbor test strings and stop using thirdparty.cbor |
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8 tpp = os.path.normpath( |
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9 os.path.join(os.path.dirname(__file__), '..', 'mercurial', 'thirdparty') |
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10 ) |
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11 if not os.path.exists(tpp): |
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12 # skip, not in a repo |
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13 sys.exit(80) |
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14 sys.path[0:0] = [tpp] |
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15 import cbor |
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16 |
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17 del sys.path[0] |
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18 |
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19 from mercurial.utils import cborutil |
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20 |
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21 |
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22 class TestCase(unittest.TestCase): |
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23 if not getattr(unittest.TestCase, 'assertRaisesRegex', False): |
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24 # Python 3.7 deprecates the regex*p* version, but 2.7 lacks |
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25 # the regex version. |
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26 assertRaisesRegex = ( # camelcase-required |
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27 unittest.TestCase.assertRaisesRegexp |
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28 ) |
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29 |
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30 |
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31 def loadit(it): |
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32 return cbor.loads(b''.join(it)) |
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33 |
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34 |
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35 class BytestringTests(TestCase): |
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36 def testsimple(self): |
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37 self.assertEqual( |
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38 list(cborutil.streamencode(b'foobar')), [b'\x46', b'foobar'] |
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39 ) |
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40 |
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41 self.assertEqual(loadit(cborutil.streamencode(b'foobar')), b'foobar') |
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42 |
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43 self.assertEqual(cborutil.decodeall(b'\x46foobar'), [b'foobar']) |
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44 |
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45 self.assertEqual( |
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46 cborutil.decodeall(b'\x46foobar\x45fizbi'), [b'foobar', b'fizbi'] |
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47 ) |
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48 |
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49 def testlong(self): |
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50 source = b'x' * 1048576 |
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51 |
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52 self.assertEqual(loadit(cborutil.streamencode(source)), source) |
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53 |
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54 encoded = b''.join(cborutil.streamencode(source)) |
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55 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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56 |
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57 def testfromiter(self): |
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58 # This is the example from RFC 7049 Section 2.2.2. |
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59 source = [b'\xaa\xbb\xcc\xdd', b'\xee\xff\x99'] |
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60 |
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61 self.assertEqual( |
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62 list(cborutil.streamencodebytestringfromiter(source)), |
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63 [ |
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64 b'\x5f', |
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65 b'\x44', |
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66 b'\xaa\xbb\xcc\xdd', |
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67 b'\x43', |
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68 b'\xee\xff\x99', |
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69 b'\xff', |
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70 ], |
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71 ) |
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72 |
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73 self.assertEqual( |
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74 loadit(cborutil.streamencodebytestringfromiter(source)), |
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75 b''.join(source), |
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76 ) |
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77 |
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78 self.assertEqual( |
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79 cborutil.decodeall( |
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80 b'\x5f\x44\xaa\xbb\xcc\xdd' b'\x43\xee\xff\x99\xff' |
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81 ), |
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82 [b'\xaa\xbb\xcc\xdd', b'\xee\xff\x99', b''], |
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83 ) |
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84 |
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85 for i, chunk in enumerate( |
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86 cborutil.decodeall( |
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87 b'\x5f\x44\xaa\xbb\xcc\xdd' b'\x43\xee\xff\x99\xff' |
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88 ) |
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89 ): |
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90 self.assertIsInstance(chunk, cborutil.bytestringchunk) |
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91 |
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92 if i == 0: |
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93 self.assertTrue(chunk.isfirst) |
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94 else: |
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95 self.assertFalse(chunk.isfirst) |
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96 |
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97 if i == 2: |
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98 self.assertTrue(chunk.islast) |
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99 else: |
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100 self.assertFalse(chunk.islast) |
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101 |
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102 def testfromiterlarge(self): |
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103 source = [b'a' * 16, b'b' * 128, b'c' * 1024, b'd' * 1048576] |
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104 |
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105 self.assertEqual( |
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106 loadit(cborutil.streamencodebytestringfromiter(source)), |
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107 b''.join(source), |
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108 ) |
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109 |
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110 def testindefinite(self): |
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111 source = b'\x00\x01\x02\x03' + b'\xff' * 16384 |
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112 |
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113 it = cborutil.streamencodeindefinitebytestring(source, chunksize=2) |
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114 |
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115 self.assertEqual(next(it), b'\x5f') |
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116 self.assertEqual(next(it), b'\x42') |
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117 self.assertEqual(next(it), b'\x00\x01') |
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118 self.assertEqual(next(it), b'\x42') |
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119 self.assertEqual(next(it), b'\x02\x03') |
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120 self.assertEqual(next(it), b'\x42') |
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121 self.assertEqual(next(it), b'\xff\xff') |
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122 |
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123 dest = b''.join( |
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124 cborutil.streamencodeindefinitebytestring(source, chunksize=42) |
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125 ) |
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126 self.assertEqual(cbor.loads(dest), source) |
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127 |
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128 self.assertEqual(b''.join(cborutil.decodeall(dest)), source) |
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129 |
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130 for chunk in cborutil.decodeall(dest): |
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131 self.assertIsInstance(chunk, cborutil.bytestringchunk) |
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132 self.assertIn(len(chunk), (0, 8, 42)) |
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133 |
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134 encoded = b'\x5f\xff' |
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135 b = cborutil.decodeall(encoded) |
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136 self.assertEqual(b, [b'']) |
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137 self.assertTrue(b[0].isfirst) |
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138 self.assertTrue(b[0].islast) |
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139 |
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140 def testdecodevariouslengths(self): |
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141 for i in (0, 1, 22, 23, 24, 25, 254, 255, 256, 65534, 65535, 65536): |
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142 source = b'x' * i |
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143 encoded = b''.join(cborutil.streamencode(source)) |
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144 |
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145 if len(source) < 24: |
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146 hlen = 1 |
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147 elif len(source) < 256: |
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148 hlen = 2 |
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149 elif len(source) < 65536: |
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150 hlen = 3 |
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151 elif len(source) < 1048576: |
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152 hlen = 5 |
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153 |
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154 self.assertEqual( |
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155 cborutil.decodeitem(encoded), |
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156 (True, source, hlen + len(source), cborutil.SPECIAL_NONE), |
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157 ) |
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158 |
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159 def testpartialdecode(self): |
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160 encoded = b''.join(cborutil.streamencode(b'foobar')) |
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161 |
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162 self.assertEqual( |
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163 cborutil.decodeitem(encoded[0:1]), |
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164 (False, None, -6, cborutil.SPECIAL_NONE), |
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165 ) |
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166 self.assertEqual( |
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167 cborutil.decodeitem(encoded[0:2]), |
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168 (False, None, -5, cborutil.SPECIAL_NONE), |
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169 ) |
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170 self.assertEqual( |
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171 cborutil.decodeitem(encoded[0:3]), |
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172 (False, None, -4, cborutil.SPECIAL_NONE), |
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173 ) |
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174 self.assertEqual( |
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175 cborutil.decodeitem(encoded[0:4]), |
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176 (False, None, -3, cborutil.SPECIAL_NONE), |
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177 ) |
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178 self.assertEqual( |
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179 cborutil.decodeitem(encoded[0:5]), |
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180 (False, None, -2, cborutil.SPECIAL_NONE), |
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181 ) |
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182 self.assertEqual( |
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183 cborutil.decodeitem(encoded[0:6]), |
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184 (False, None, -1, cborutil.SPECIAL_NONE), |
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185 ) |
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186 self.assertEqual( |
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187 cborutil.decodeitem(encoded[0:7]), |
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188 (True, b'foobar', 7, cborutil.SPECIAL_NONE), |
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189 ) |
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190 |
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191 def testpartialdecodevariouslengths(self): |
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192 lens = [ |
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193 2, |
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194 3, |
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195 10, |
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196 23, |
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197 24, |
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198 25, |
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199 31, |
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200 100, |
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201 254, |
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202 255, |
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203 256, |
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204 257, |
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205 16384, |
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206 65534, |
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207 65535, |
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208 65536, |
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209 65537, |
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210 131071, |
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211 131072, |
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212 131073, |
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213 1048575, |
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214 1048576, |
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215 1048577, |
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216 ] |
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217 |
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218 for size in lens: |
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219 if size < 24: |
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220 hlen = 1 |
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221 elif size < 2 ** 8: |
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222 hlen = 2 |
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223 elif size < 2 ** 16: |
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224 hlen = 3 |
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225 elif size < 2 ** 32: |
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226 hlen = 5 |
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227 else: |
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228 assert False |
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229 |
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230 source = b'x' * size |
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231 encoded = b''.join(cborutil.streamencode(source)) |
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232 |
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233 res = cborutil.decodeitem(encoded[0:1]) |
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234 |
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235 if hlen > 1: |
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236 self.assertEqual( |
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237 res, (False, None, -(hlen - 1), cborutil.SPECIAL_NONE) |
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238 ) |
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239 else: |
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240 self.assertEqual( |
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241 res, |
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242 (False, None, -(size + hlen - 1), cborutil.SPECIAL_NONE), |
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243 ) |
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244 |
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245 # Decoding partial header reports remaining header size. |
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246 for i in range(hlen - 1): |
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247 self.assertEqual( |
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248 cborutil.decodeitem(encoded[0 : i + 1]), |
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249 (False, None, -(hlen - i - 1), cborutil.SPECIAL_NONE), |
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250 ) |
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251 |
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252 # Decoding complete header reports item size. |
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253 self.assertEqual( |
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254 cborutil.decodeitem(encoded[0:hlen]), |
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255 (False, None, -size, cborutil.SPECIAL_NONE), |
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256 ) |
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257 |
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258 # Decoding single byte after header reports item size - 1 |
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259 self.assertEqual( |
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260 cborutil.decodeitem(encoded[0 : hlen + 1]), |
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261 (False, None, -(size - 1), cborutil.SPECIAL_NONE), |
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262 ) |
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263 |
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264 # Decoding all but the last byte reports -1 needed. |
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265 self.assertEqual( |
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266 cborutil.decodeitem(encoded[0 : hlen + size - 1]), |
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267 (False, None, -1, cborutil.SPECIAL_NONE), |
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268 ) |
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269 |
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270 # Decoding last byte retrieves value. |
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271 self.assertEqual( |
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272 cborutil.decodeitem(encoded[0 : hlen + size]), |
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273 (True, source, hlen + size, cborutil.SPECIAL_NONE), |
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274 ) |
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275 |
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276 def testindefinitepartialdecode(self): |
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277 encoded = b''.join( |
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278 cborutil.streamencodebytestringfromiter([b'foobar', b'biz']) |
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279 ) |
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280 |
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281 # First item should be begin of bytestring special. |
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282 self.assertEqual( |
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283 cborutil.decodeitem(encoded[0:1]), |
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284 (True, None, 1, cborutil.SPECIAL_START_INDEFINITE_BYTESTRING), |
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285 ) |
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286 |
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287 # Second item should be the first chunk. But only available when |
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288 # we give it 7 bytes (1 byte header + 6 byte chunk). |
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289 self.assertEqual( |
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290 cborutil.decodeitem(encoded[1:2]), |
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291 (False, None, -6, cborutil.SPECIAL_NONE), |
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292 ) |
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293 self.assertEqual( |
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294 cborutil.decodeitem(encoded[1:3]), |
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295 (False, None, -5, cborutil.SPECIAL_NONE), |
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296 ) |
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297 self.assertEqual( |
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298 cborutil.decodeitem(encoded[1:4]), |
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299 (False, None, -4, cborutil.SPECIAL_NONE), |
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300 ) |
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301 self.assertEqual( |
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302 cborutil.decodeitem(encoded[1:5]), |
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303 (False, None, -3, cborutil.SPECIAL_NONE), |
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304 ) |
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305 self.assertEqual( |
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306 cborutil.decodeitem(encoded[1:6]), |
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307 (False, None, -2, cborutil.SPECIAL_NONE), |
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308 ) |
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309 self.assertEqual( |
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310 cborutil.decodeitem(encoded[1:7]), |
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311 (False, None, -1, cborutil.SPECIAL_NONE), |
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312 ) |
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313 |
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314 self.assertEqual( |
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315 cborutil.decodeitem(encoded[1:8]), |
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316 (True, b'foobar', 7, cborutil.SPECIAL_NONE), |
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317 ) |
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318 |
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319 # Third item should be second chunk. But only available when |
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320 # we give it 4 bytes (1 byte header + 3 byte chunk). |
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321 self.assertEqual( |
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322 cborutil.decodeitem(encoded[8:9]), |
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323 (False, None, -3, cborutil.SPECIAL_NONE), |
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324 ) |
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325 self.assertEqual( |
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326 cborutil.decodeitem(encoded[8:10]), |
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327 (False, None, -2, cborutil.SPECIAL_NONE), |
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328 ) |
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329 self.assertEqual( |
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330 cborutil.decodeitem(encoded[8:11]), |
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331 (False, None, -1, cborutil.SPECIAL_NONE), |
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332 ) |
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333 |
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334 self.assertEqual( |
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335 cborutil.decodeitem(encoded[8:12]), |
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336 (True, b'biz', 4, cborutil.SPECIAL_NONE), |
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337 ) |
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338 |
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339 # Fourth item should be end of indefinite stream marker. |
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340 self.assertEqual( |
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341 cborutil.decodeitem(encoded[12:13]), |
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342 (True, None, 1, cborutil.SPECIAL_INDEFINITE_BREAK), |
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343 ) |
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344 |
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345 # Now test the behavior when going through the decoder. |
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346 |
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347 self.assertEqual( |
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348 cborutil.sansiodecoder().decode(encoded[0:1]), (False, 1, 0) |
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349 ) |
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350 self.assertEqual( |
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351 cborutil.sansiodecoder().decode(encoded[0:2]), (False, 1, 6) |
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352 ) |
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353 self.assertEqual( |
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354 cborutil.sansiodecoder().decode(encoded[0:3]), (False, 1, 5) |
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355 ) |
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356 self.assertEqual( |
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357 cborutil.sansiodecoder().decode(encoded[0:4]), (False, 1, 4) |
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358 ) |
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359 self.assertEqual( |
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360 cborutil.sansiodecoder().decode(encoded[0:5]), (False, 1, 3) |
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361 ) |
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362 self.assertEqual( |
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363 cborutil.sansiodecoder().decode(encoded[0:6]), (False, 1, 2) |
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364 ) |
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365 self.assertEqual( |
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366 cborutil.sansiodecoder().decode(encoded[0:7]), (False, 1, 1) |
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367 ) |
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368 self.assertEqual( |
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369 cborutil.sansiodecoder().decode(encoded[0:8]), (True, 8, 0) |
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370 ) |
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371 |
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372 self.assertEqual( |
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373 cborutil.sansiodecoder().decode(encoded[0:9]), (True, 8, 3) |
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374 ) |
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375 self.assertEqual( |
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376 cborutil.sansiodecoder().decode(encoded[0:10]), (True, 8, 2) |
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377 ) |
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378 self.assertEqual( |
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379 cborutil.sansiodecoder().decode(encoded[0:11]), (True, 8, 1) |
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380 ) |
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381 self.assertEqual( |
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382 cborutil.sansiodecoder().decode(encoded[0:12]), (True, 12, 0) |
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383 ) |
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384 |
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385 self.assertEqual( |
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386 cborutil.sansiodecoder().decode(encoded[0:13]), (True, 13, 0) |
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387 ) |
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388 |
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389 decoder = cborutil.sansiodecoder() |
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390 decoder.decode(encoded[0:8]) |
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391 values = decoder.getavailable() |
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392 self.assertEqual(values, [b'foobar']) |
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393 self.assertTrue(values[0].isfirst) |
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394 self.assertFalse(values[0].islast) |
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395 |
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396 self.assertEqual(decoder.decode(encoded[8:12]), (True, 4, 0)) |
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397 values = decoder.getavailable() |
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398 self.assertEqual(values, [b'biz']) |
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399 self.assertFalse(values[0].isfirst) |
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400 self.assertFalse(values[0].islast) |
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401 |
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402 self.assertEqual(decoder.decode(encoded[12:]), (True, 1, 0)) |
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403 values = decoder.getavailable() |
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404 self.assertEqual(values, [b'']) |
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405 self.assertFalse(values[0].isfirst) |
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406 self.assertTrue(values[0].islast) |
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407 |
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408 |
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409 class StringTests(TestCase): |
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410 def testdecodeforbidden(self): |
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411 encoded = b'\x63foo' |
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412 with self.assertRaisesRegex( |
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413 cborutil.CBORDecodeError, 'string major type not supported' |
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414 ): |
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415 cborutil.decodeall(encoded) |
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416 |
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417 |
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418 class IntTests(TestCase): |
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419 def testsmall(self): |
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420 self.assertEqual(list(cborutil.streamencode(0)), [b'\x00']) |
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421 self.assertEqual(cborutil.decodeall(b'\x00'), [0]) |
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422 |
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423 self.assertEqual(list(cborutil.streamencode(1)), [b'\x01']) |
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424 self.assertEqual(cborutil.decodeall(b'\x01'), [1]) |
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425 |
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426 self.assertEqual(list(cborutil.streamencode(2)), [b'\x02']) |
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427 self.assertEqual(cborutil.decodeall(b'\x02'), [2]) |
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428 |
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429 self.assertEqual(list(cborutil.streamencode(3)), [b'\x03']) |
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430 self.assertEqual(cborutil.decodeall(b'\x03'), [3]) |
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431 |
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432 self.assertEqual(list(cborutil.streamencode(4)), [b'\x04']) |
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433 self.assertEqual(cborutil.decodeall(b'\x04'), [4]) |
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434 |
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435 # Multiple value decode works. |
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436 self.assertEqual( |
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437 cborutil.decodeall(b'\x00\x01\x02\x03\x04'), [0, 1, 2, 3, 4] |
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438 ) |
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439 |
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440 def testnegativesmall(self): |
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441 self.assertEqual(list(cborutil.streamencode(-1)), [b'\x20']) |
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442 self.assertEqual(cborutil.decodeall(b'\x20'), [-1]) |
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443 |
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444 self.assertEqual(list(cborutil.streamencode(-2)), [b'\x21']) |
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445 self.assertEqual(cborutil.decodeall(b'\x21'), [-2]) |
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446 |
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447 self.assertEqual(list(cborutil.streamencode(-3)), [b'\x22']) |
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448 self.assertEqual(cborutil.decodeall(b'\x22'), [-3]) |
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449 |
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450 self.assertEqual(list(cborutil.streamencode(-4)), [b'\x23']) |
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451 self.assertEqual(cborutil.decodeall(b'\x23'), [-4]) |
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452 |
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453 self.assertEqual(list(cborutil.streamencode(-5)), [b'\x24']) |
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454 self.assertEqual(cborutil.decodeall(b'\x24'), [-5]) |
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455 |
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456 # Multiple value decode works. |
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457 self.assertEqual( |
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458 cborutil.decodeall(b'\x20\x21\x22\x23\x24'), [-1, -2, -3, -4, -5] |
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459 ) |
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460 |
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461 def testrange(self): |
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462 for i in range(-70000, 70000, 10): |
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463 encoded = b''.join(cborutil.streamencode(i)) |
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464 |
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465 self.assertEqual(encoded, cbor.dumps(i)) |
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466 self.assertEqual(cborutil.decodeall(encoded), [i]) |
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467 |
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468 def testdecodepartialubyte(self): |
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469 encoded = b''.join(cborutil.streamencode(250)) |
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470 |
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471 self.assertEqual( |
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472 cborutil.decodeitem(encoded[0:1]), |
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473 (False, None, -1, cborutil.SPECIAL_NONE), |
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474 ) |
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475 self.assertEqual( |
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476 cborutil.decodeitem(encoded[0:2]), |
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477 (True, 250, 2, cborutil.SPECIAL_NONE), |
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478 ) |
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479 |
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480 def testdecodepartialbyte(self): |
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481 encoded = b''.join(cborutil.streamencode(-42)) |
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482 self.assertEqual( |
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483 cborutil.decodeitem(encoded[0:1]), |
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484 (False, None, -1, cborutil.SPECIAL_NONE), |
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485 ) |
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486 self.assertEqual( |
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487 cborutil.decodeitem(encoded[0:2]), |
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488 (True, -42, 2, cborutil.SPECIAL_NONE), |
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489 ) |
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490 |
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491 def testdecodepartialushort(self): |
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492 encoded = b''.join(cborutil.streamencode(2 ** 15)) |
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493 |
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494 self.assertEqual( |
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495 cborutil.decodeitem(encoded[0:1]), |
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496 (False, None, -2, cborutil.SPECIAL_NONE), |
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497 ) |
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498 self.assertEqual( |
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499 cborutil.decodeitem(encoded[0:2]), |
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500 (False, None, -1, cborutil.SPECIAL_NONE), |
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501 ) |
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502 self.assertEqual( |
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503 cborutil.decodeitem(encoded[0:5]), |
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504 (True, 2 ** 15, 3, cborutil.SPECIAL_NONE), |
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505 ) |
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506 |
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507 def testdecodepartialshort(self): |
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508 encoded = b''.join(cborutil.streamencode(-1024)) |
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509 |
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510 self.assertEqual( |
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511 cborutil.decodeitem(encoded[0:1]), |
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512 (False, None, -2, cborutil.SPECIAL_NONE), |
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513 ) |
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514 self.assertEqual( |
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515 cborutil.decodeitem(encoded[0:2]), |
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516 (False, None, -1, cborutil.SPECIAL_NONE), |
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517 ) |
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518 self.assertEqual( |
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519 cborutil.decodeitem(encoded[0:3]), |
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520 (True, -1024, 3, cborutil.SPECIAL_NONE), |
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521 ) |
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522 |
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523 def testdecodepartialulong(self): |
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524 encoded = b''.join(cborutil.streamencode(2 ** 28)) |
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525 |
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526 self.assertEqual( |
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527 cborutil.decodeitem(encoded[0:1]), |
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528 (False, None, -4, cborutil.SPECIAL_NONE), |
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529 ) |
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530 self.assertEqual( |
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531 cborutil.decodeitem(encoded[0:2]), |
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532 (False, None, -3, cborutil.SPECIAL_NONE), |
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533 ) |
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534 self.assertEqual( |
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535 cborutil.decodeitem(encoded[0:3]), |
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536 (False, None, -2, cborutil.SPECIAL_NONE), |
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537 ) |
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538 self.assertEqual( |
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539 cborutil.decodeitem(encoded[0:4]), |
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540 (False, None, -1, cborutil.SPECIAL_NONE), |
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541 ) |
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542 self.assertEqual( |
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543 cborutil.decodeitem(encoded[0:5]), |
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544 (True, 2 ** 28, 5, cborutil.SPECIAL_NONE), |
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545 ) |
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546 |
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547 def testdecodepartiallong(self): |
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548 encoded = b''.join(cborutil.streamencode(-1048580)) |
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549 |
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550 self.assertEqual( |
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551 cborutil.decodeitem(encoded[0:1]), |
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552 (False, None, -4, cborutil.SPECIAL_NONE), |
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553 ) |
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554 self.assertEqual( |
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555 cborutil.decodeitem(encoded[0:2]), |
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556 (False, None, -3, cborutil.SPECIAL_NONE), |
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557 ) |
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558 self.assertEqual( |
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559 cborutil.decodeitem(encoded[0:3]), |
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560 (False, None, -2, cborutil.SPECIAL_NONE), |
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561 ) |
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562 self.assertEqual( |
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563 cborutil.decodeitem(encoded[0:4]), |
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564 (False, None, -1, cborutil.SPECIAL_NONE), |
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565 ) |
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566 self.assertEqual( |
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567 cborutil.decodeitem(encoded[0:5]), |
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568 (True, -1048580, 5, cborutil.SPECIAL_NONE), |
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569 ) |
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570 |
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571 def testdecodepartialulonglong(self): |
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572 encoded = b''.join(cborutil.streamencode(2 ** 32)) |
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573 |
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574 self.assertEqual( |
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575 cborutil.decodeitem(encoded[0:1]), |
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576 (False, None, -8, cborutil.SPECIAL_NONE), |
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577 ) |
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578 self.assertEqual( |
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579 cborutil.decodeitem(encoded[0:2]), |
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580 (False, None, -7, cborutil.SPECIAL_NONE), |
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581 ) |
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582 self.assertEqual( |
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583 cborutil.decodeitem(encoded[0:3]), |
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584 (False, None, -6, cborutil.SPECIAL_NONE), |
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585 ) |
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586 self.assertEqual( |
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587 cborutil.decodeitem(encoded[0:4]), |
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588 (False, None, -5, cborutil.SPECIAL_NONE), |
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589 ) |
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590 self.assertEqual( |
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591 cborutil.decodeitem(encoded[0:5]), |
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592 (False, None, -4, cborutil.SPECIAL_NONE), |
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593 ) |
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594 self.assertEqual( |
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595 cborutil.decodeitem(encoded[0:6]), |
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596 (False, None, -3, cborutil.SPECIAL_NONE), |
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597 ) |
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598 self.assertEqual( |
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599 cborutil.decodeitem(encoded[0:7]), |
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600 (False, None, -2, cborutil.SPECIAL_NONE), |
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601 ) |
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602 self.assertEqual( |
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603 cborutil.decodeitem(encoded[0:8]), |
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604 (False, None, -1, cborutil.SPECIAL_NONE), |
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605 ) |
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606 self.assertEqual( |
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607 cborutil.decodeitem(encoded[0:9]), |
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608 (True, 2 ** 32, 9, cborutil.SPECIAL_NONE), |
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609 ) |
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610 |
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611 with self.assertRaisesRegex( |
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612 cborutil.CBORDecodeError, 'input data not fully consumed' |
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613 ): |
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614 cborutil.decodeall(encoded[0:1]) |
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615 |
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616 with self.assertRaisesRegex( |
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617 cborutil.CBORDecodeError, 'input data not fully consumed' |
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618 ): |
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619 cborutil.decodeall(encoded[0:2]) |
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620 |
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621 def testdecodepartiallonglong(self): |
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622 encoded = b''.join(cborutil.streamencode(-7000000000)) |
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623 |
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624 self.assertEqual( |
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625 cborutil.decodeitem(encoded[0:1]), |
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626 (False, None, -8, cborutil.SPECIAL_NONE), |
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627 ) |
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628 self.assertEqual( |
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629 cborutil.decodeitem(encoded[0:2]), |
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630 (False, None, -7, cborutil.SPECIAL_NONE), |
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631 ) |
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632 self.assertEqual( |
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633 cborutil.decodeitem(encoded[0:3]), |
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634 (False, None, -6, cborutil.SPECIAL_NONE), |
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635 ) |
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636 self.assertEqual( |
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637 cborutil.decodeitem(encoded[0:4]), |
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638 (False, None, -5, cborutil.SPECIAL_NONE), |
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639 ) |
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640 self.assertEqual( |
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641 cborutil.decodeitem(encoded[0:5]), |
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642 (False, None, -4, cborutil.SPECIAL_NONE), |
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643 ) |
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644 self.assertEqual( |
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645 cborutil.decodeitem(encoded[0:6]), |
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646 (False, None, -3, cborutil.SPECIAL_NONE), |
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647 ) |
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648 self.assertEqual( |
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649 cborutil.decodeitem(encoded[0:7]), |
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650 (False, None, -2, cborutil.SPECIAL_NONE), |
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651 ) |
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652 self.assertEqual( |
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653 cborutil.decodeitem(encoded[0:8]), |
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654 (False, None, -1, cborutil.SPECIAL_NONE), |
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655 ) |
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656 self.assertEqual( |
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657 cborutil.decodeitem(encoded[0:9]), |
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658 (True, -7000000000, 9, cborutil.SPECIAL_NONE), |
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659 ) |
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660 |
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661 |
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662 class ArrayTests(TestCase): |
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663 def testempty(self): |
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664 self.assertEqual(list(cborutil.streamencode([])), [b'\x80']) |
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665 self.assertEqual(loadit(cborutil.streamencode([])), []) |
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666 |
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667 self.assertEqual(cborutil.decodeall(b'\x80'), [[]]) |
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668 |
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669 def testbasic(self): |
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670 source = [b'foo', b'bar', 1, -10] |
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671 |
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672 chunks = [b'\x84', b'\x43', b'foo', b'\x43', b'bar', b'\x01', b'\x29'] |
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673 |
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674 self.assertEqual(list(cborutil.streamencode(source)), chunks) |
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675 |
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676 self.assertEqual(cborutil.decodeall(b''.join(chunks)), [source]) |
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677 |
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678 def testemptyfromiter(self): |
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679 self.assertEqual( |
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680 b''.join(cborutil.streamencodearrayfromiter([])), b'\x9f\xff' |
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681 ) |
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682 |
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683 with self.assertRaisesRegex( |
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684 cborutil.CBORDecodeError, 'indefinite length uint not allowed' |
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685 ): |
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686 cborutil.decodeall(b'\x9f\xff') |
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687 |
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688 def testfromiter1(self): |
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689 source = [b'foo'] |
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690 |
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691 self.assertEqual( |
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692 list(cborutil.streamencodearrayfromiter(source)), |
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693 [ |
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694 b'\x9f', |
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695 b'\x43', |
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696 b'foo', |
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697 b'\xff', |
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698 ], |
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699 ) |
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700 |
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701 dest = b''.join(cborutil.streamencodearrayfromiter(source)) |
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702 self.assertEqual(cbor.loads(dest), source) |
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703 |
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704 with self.assertRaisesRegex( |
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705 cborutil.CBORDecodeError, 'indefinite length uint not allowed' |
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707 cborutil.decodeall(dest) |
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708 |
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709 def testtuple(self): |
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710 source = (b'foo', None, 42) |
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711 encoded = b''.join(cborutil.streamencode(source)) |
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712 |
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713 self.assertEqual(cbor.loads(encoded), list(source)) |
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714 |
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715 self.assertEqual(cborutil.decodeall(encoded), [list(source)]) |
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716 |
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717 def testpartialdecode(self): |
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718 source = list(range(4)) |
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719 encoded = b''.join(cborutil.streamencode(source)) |
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720 self.assertEqual( |
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721 cborutil.decodeitem(encoded[0:1]), |
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722 (True, 4, 1, cborutil.SPECIAL_START_ARRAY), |
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723 ) |
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724 self.assertEqual( |
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725 cborutil.decodeitem(encoded[0:2]), |
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726 (True, 4, 1, cborutil.SPECIAL_START_ARRAY), |
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727 ) |
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728 |
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729 source = list(range(23)) |
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730 encoded = b''.join(cborutil.streamencode(source)) |
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731 self.assertEqual( |
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732 cborutil.decodeitem(encoded[0:1]), |
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733 (True, 23, 1, cborutil.SPECIAL_START_ARRAY), |
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734 ) |
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735 self.assertEqual( |
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736 cborutil.decodeitem(encoded[0:2]), |
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737 (True, 23, 1, cborutil.SPECIAL_START_ARRAY), |
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738 ) |
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739 |
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740 source = list(range(24)) |
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741 encoded = b''.join(cborutil.streamencode(source)) |
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742 self.assertEqual( |
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743 cborutil.decodeitem(encoded[0:1]), |
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744 (False, None, -1, cborutil.SPECIAL_NONE), |
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745 ) |
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746 self.assertEqual( |
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747 cborutil.decodeitem(encoded[0:2]), |
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748 (True, 24, 2, cborutil.SPECIAL_START_ARRAY), |
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749 ) |
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750 self.assertEqual( |
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751 cborutil.decodeitem(encoded[0:3]), |
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752 (True, 24, 2, cborutil.SPECIAL_START_ARRAY), |
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753 ) |
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754 |
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755 source = list(range(256)) |
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756 encoded = b''.join(cborutil.streamencode(source)) |
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757 self.assertEqual( |
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758 cborutil.decodeitem(encoded[0:1]), |
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759 (False, None, -2, cborutil.SPECIAL_NONE), |
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760 ) |
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761 self.assertEqual( |
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762 cborutil.decodeitem(encoded[0:2]), |
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763 (False, None, -1, cborutil.SPECIAL_NONE), |
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764 ) |
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765 self.assertEqual( |
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766 cborutil.decodeitem(encoded[0:3]), |
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767 (True, 256, 3, cborutil.SPECIAL_START_ARRAY), |
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768 ) |
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769 self.assertEqual( |
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770 cborutil.decodeitem(encoded[0:4]), |
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771 (True, 256, 3, cborutil.SPECIAL_START_ARRAY), |
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772 ) |
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773 |
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774 def testnested(self): |
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775 source = [[], [], [[], [], []]] |
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776 encoded = b''.join(cborutil.streamencode(source)) |
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777 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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778 |
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779 source = [True, None, [True, 0, 2], [None], [], [[[]], -87]] |
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780 encoded = b''.join(cborutil.streamencode(source)) |
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781 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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782 |
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783 # A set within an array. |
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784 source = [None, {b'foo', b'bar', None, False}, set()] |
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785 encoded = b''.join(cborutil.streamencode(source)) |
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786 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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787 |
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788 # A map within an array. |
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789 source = [None, {}, {b'foo': b'bar', True: False}, [{}]] |
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790 encoded = b''.join(cborutil.streamencode(source)) |
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791 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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792 |
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793 def testindefinitebytestringvalues(self): |
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794 # Single value array whose value is an empty indefinite bytestring. |
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795 encoded = b'\x81\x5f\x40\xff' |
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796 |
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797 with self.assertRaisesRegex( |
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798 cborutil.CBORDecodeError, |
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799 'indefinite length bytestrings not ' 'allowed as array values', |
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800 ): |
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801 cborutil.decodeall(encoded) |
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802 |
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803 |
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804 class SetTests(TestCase): |
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805 def testempty(self): |
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806 self.assertEqual( |
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807 list(cborutil.streamencode(set())), |
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808 [ |
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809 b'\xd9\x01\x02', |
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810 b'\x80', |
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811 ], |
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812 ) |
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813 |
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814 self.assertEqual(cborutil.decodeall(b'\xd9\x01\x02\x80'), [set()]) |
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815 |
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816 def testset(self): |
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817 source = {b'foo', None, 42} |
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818 encoded = b''.join(cborutil.streamencode(source)) |
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819 |
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820 self.assertEqual(cbor.loads(encoded), source) |
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821 |
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822 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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823 |
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824 def testinvalidtag(self): |
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825 # Must use array to encode sets. |
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826 encoded = b'\xd9\x01\x02\xa0' |
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827 |
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828 with self.assertRaisesRegex( |
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829 cborutil.CBORDecodeError, |
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830 'expected array after finite set ' 'semantic tag', |
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831 ): |
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832 cborutil.decodeall(encoded) |
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833 |
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834 def testpartialdecode(self): |
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835 # Semantic tag item will be 3 bytes. Set header will be variable |
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836 # depending on length. |
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837 encoded = b''.join(cborutil.streamencode({i for i in range(23)})) |
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838 self.assertEqual( |
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839 cborutil.decodeitem(encoded[0:1]), |
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840 (False, None, -2, cborutil.SPECIAL_NONE), |
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841 ) |
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842 self.assertEqual( |
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843 cborutil.decodeitem(encoded[0:2]), |
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844 (False, None, -1, cborutil.SPECIAL_NONE), |
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845 ) |
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846 self.assertEqual( |
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847 cborutil.decodeitem(encoded[0:3]), |
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848 (False, None, -1, cborutil.SPECIAL_NONE), |
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|
849 ) |
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|
850 self.assertEqual( |
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851 cborutil.decodeitem(encoded[0:4]), |
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852 (True, 23, 4, cborutil.SPECIAL_START_SET), |
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|
853 ) |
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|
854 self.assertEqual( |
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|
855 cborutil.decodeitem(encoded[0:5]), |
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|
856 (True, 23, 4, cborutil.SPECIAL_START_SET), |
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|
857 ) |
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|
858 |
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|
859 encoded = b''.join(cborutil.streamencode({i for i in range(24)})) |
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860 self.assertEqual( |
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861 cborutil.decodeitem(encoded[0:1]), |
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|
862 (False, None, -2, cborutil.SPECIAL_NONE), |
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|
863 ) |
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|
864 self.assertEqual( |
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|
865 cborutil.decodeitem(encoded[0:2]), |
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|
866 (False, None, -1, cborutil.SPECIAL_NONE), |
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diff
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|
867 ) |
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|
868 self.assertEqual( |
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|
869 cborutil.decodeitem(encoded[0:3]), |
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|
870 (False, None, -1, cborutil.SPECIAL_NONE), |
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|
871 ) |
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|
872 self.assertEqual( |
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|
873 cborutil.decodeitem(encoded[0:4]), |
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|
874 (False, None, -1, cborutil.SPECIAL_NONE), |
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|
875 ) |
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|
876 self.assertEqual( |
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|
877 cborutil.decodeitem(encoded[0:5]), |
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|
878 (True, 24, 5, cborutil.SPECIAL_START_SET), |
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diff
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|
879 ) |
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|
880 self.assertEqual( |
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|
881 cborutil.decodeitem(encoded[0:6]), |
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|
882 (True, 24, 5, cborutil.SPECIAL_START_SET), |
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diff
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|
883 ) |
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cborutil: implement support for streaming encoding, bytestring decoding
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
884 |
39411
aeb551a3bb8a
cborutil: implement sans I/O decoder
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|
885 encoded = b''.join(cborutil.streamencode({i for i in range(256)})) |
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|
886 self.assertEqual( |
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|
887 cborutil.decodeitem(encoded[0:1]), |
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|
888 (False, None, -2, cborutil.SPECIAL_NONE), |
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|
889 ) |
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|
890 self.assertEqual( |
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|
891 cborutil.decodeitem(encoded[0:2]), |
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|
892 (False, None, -1, cborutil.SPECIAL_NONE), |
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|
893 ) |
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|
894 self.assertEqual( |
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|
895 cborutil.decodeitem(encoded[0:3]), |
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|
896 (False, None, -1, cborutil.SPECIAL_NONE), |
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|
897 ) |
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changeset
|
898 self.assertEqual( |
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|
899 cborutil.decodeitem(encoded[0:4]), |
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|
900 (False, None, -2, cborutil.SPECIAL_NONE), |
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|
901 ) |
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|
902 self.assertEqual( |
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|
903 cborutil.decodeitem(encoded[0:5]), |
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|
904 (False, None, -1, cborutil.SPECIAL_NONE), |
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|
905 ) |
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changeset
|
906 self.assertEqual( |
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|
907 cborutil.decodeitem(encoded[0:6]), |
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|
908 (True, 256, 6, cborutil.SPECIAL_START_SET), |
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diff
changeset
|
909 ) |
39411
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
910 |
aeb551a3bb8a
cborutil: implement sans I/O decoder
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changeset
|
911 def testinvalidvalue(self): |
43076
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|
912 encoded = b''.join( |
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changeset
|
913 [ |
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|
914 b'\xd9\x01\x02', # semantic tag |
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|
915 b'\x81', # array of size 1 |
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|
916 b'\x5f\x43foo\xff', # indefinite length bytestring "foo" |
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|
917 ] |
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|
918 ) |
39411
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|
919 |
43076
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diff
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|
920 with self.assertRaisesRegex( |
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|
921 cborutil.CBORDecodeError, |
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|
922 'indefinite length bytestrings not ' 'allowed as set values', |
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diff
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|
923 ): |
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diff
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|
924 cborutil.decodeall(encoded) |
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diff
changeset
|
925 |
45942
89a2afe31e82
formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents:
43996
diff
changeset
|
926 encoded = b''.join( |
89a2afe31e82
formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents:
43996
diff
changeset
|
927 [ |
89a2afe31e82
formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents:
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diff
changeset
|
928 b'\xd9\x01\x02', |
89a2afe31e82
formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents:
43996
diff
changeset
|
929 b'\x81', |
89a2afe31e82
formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents:
43996
diff
changeset
|
930 b'\x80', |
89a2afe31e82
formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents:
43996
diff
changeset
|
931 ] |
89a2afe31e82
formating: upgrade to black 20.8b1
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diff
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|
932 ) # empty array |
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changeset
|
933 |
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diff
changeset
|
934 with self.assertRaisesRegex( |
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diff
changeset
|
935 cborutil.CBORDecodeError, 'collections not allowed as set values' |
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parents:
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diff
changeset
|
936 ): |
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cborutil: implement sans I/O decoder
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37899
diff
changeset
|
937 cborutil.decodeall(encoded) |
aeb551a3bb8a
cborutil: implement sans I/O decoder
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
938 |
45942
89a2afe31e82
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parents:
43996
diff
changeset
|
939 encoded = b''.join( |
89a2afe31e82
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Augie Fackler <raf@durin42.com>
parents:
43996
diff
changeset
|
940 [ |
89a2afe31e82
formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents:
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diff
changeset
|
941 b'\xd9\x01\x02', |
89a2afe31e82
formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents:
43996
diff
changeset
|
942 b'\x81', |
89a2afe31e82
formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents:
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diff
changeset
|
943 b'\xa0', |
89a2afe31e82
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parents:
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diff
changeset
|
944 ] |
89a2afe31e82
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diff
changeset
|
945 ) # empty map |
39411
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changeset
|
946 |
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diff
changeset
|
947 with self.assertRaisesRegex( |
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diff
changeset
|
948 cborutil.CBORDecodeError, 'collections not allowed as set values' |
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diff
changeset
|
949 ): |
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parents:
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diff
changeset
|
950 cborutil.decodeall(encoded) |
aeb551a3bb8a
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parents:
37899
diff
changeset
|
951 |
43076
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diff
changeset
|
952 encoded = b''.join( |
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parents:
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diff
changeset
|
953 [ |
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diff
changeset
|
954 b'\xd9\x01\x02', |
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diff
changeset
|
955 b'\x81', |
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changeset
|
956 b'\xd9\x01\x02\x81\x01', # set with integer 1 |
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diff
changeset
|
957 ] |
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diff
changeset
|
958 ) |
39411
aeb551a3bb8a
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parents:
37899
diff
changeset
|
959 |
43076
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diff
changeset
|
960 with self.assertRaisesRegex( |
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diff
changeset
|
961 cborutil.CBORDecodeError, 'collections not allowed as set values' |
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|
962 ): |
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diff
changeset
|
963 cborutil.decodeall(encoded) |
aeb551a3bb8a
cborutil: implement sans I/O decoder
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parents:
37899
diff
changeset
|
964 |
aeb551a3bb8a
cborutil: implement sans I/O decoder
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37899
diff
changeset
|
965 |
aeb551a3bb8a
cborutil: implement sans I/O decoder
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37899
diff
changeset
|
966 class BoolTests(TestCase): |
37711
65a23cc8e75b
cborutil: implement support for streaming encoding, bytestring decoding
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parents:
diff
changeset
|
967 def testbasic(self): |
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|
968 self.assertEqual(list(cborutil.streamencode(True)), [b'\xf5']) |
37711
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
969 self.assertEqual(list(cborutil.streamencode(False)), [b'\xf4']) |
65a23cc8e75b
cborutil: implement support for streaming encoding, bytestring decoding
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
970 |
65a23cc8e75b
cborutil: implement support for streaming encoding, bytestring decoding
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
971 self.assertIs(loadit(cborutil.streamencode(True)), True) |
65a23cc8e75b
cborutil: implement support for streaming encoding, bytestring decoding
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
972 self.assertIs(loadit(cborutil.streamencode(False)), False) |
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973 |
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974 self.assertEqual(cborutil.decodeall(b'\xf4'), [False]) |
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975 self.assertEqual(cborutil.decodeall(b'\xf5'), [True]) |
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976 |
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977 self.assertEqual( |
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978 cborutil.decodeall(b'\xf4\xf5\xf5\xf4'), [False, True, True, False] |
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979 ) |
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980 |
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981 |
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982 class NoneTests(TestCase): |
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983 def testbasic(self): |
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984 self.assertEqual(list(cborutil.streamencode(None)), [b'\xf6']) |
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985 |
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986 self.assertIs(loadit(cborutil.streamencode(None)), None) |
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987 |
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988 self.assertEqual(cborutil.decodeall(b'\xf6'), [None]) |
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989 self.assertEqual(cborutil.decodeall(b'\xf6\xf6'), [None, None]) |
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990 |
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991 |
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992 class MapTests(TestCase): |
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993 def testempty(self): |
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994 self.assertEqual(list(cborutil.streamencode({})), [b'\xa0']) |
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995 self.assertEqual(loadit(cborutil.streamencode({})), {}) |
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996 |
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997 self.assertEqual(cborutil.decodeall(b'\xa0'), [{}]) |
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998 |
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999 def testemptyindefinite(self): |
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1000 self.assertEqual( |
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1001 list(cborutil.streamencodemapfromiter([])), [b'\xbf', b'\xff'] |
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1002 ) |
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1003 |
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1004 self.assertEqual(loadit(cborutil.streamencodemapfromiter([])), {}) |
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1005 |
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1006 with self.assertRaisesRegex( |
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1007 cborutil.CBORDecodeError, 'indefinite length uint not allowed' |
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1008 ): |
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1009 cborutil.decodeall(b'\xbf\xff') |
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1010 |
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1011 def testone(self): |
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1012 source = {b'foo': b'bar'} |
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1013 self.assertEqual( |
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1014 list(cborutil.streamencode(source)), |
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1015 [b'\xa1', b'\x43', b'foo', b'\x43', b'bar'], |
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1016 ) |
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1017 |
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1018 self.assertEqual(loadit(cborutil.streamencode(source)), source) |
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1019 |
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1020 self.assertEqual(cborutil.decodeall(b'\xa1\x43foo\x43bar'), [source]) |
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1021 |
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1022 def testmultiple(self): |
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1023 source = { |
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1024 b'foo': b'bar', |
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1025 b'baz': b'value1', |
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1026 } |
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1027 |
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1028 self.assertEqual(loadit(cborutil.streamencode(source)), source) |
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1029 |
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1030 self.assertEqual( |
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1031 loadit(cborutil.streamencodemapfromiter(source.items())), source |
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1032 ) |
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1033 |
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1034 encoded = b''.join(cborutil.streamencode(source)) |
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1035 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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1036 |
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1037 def testcomplex(self): |
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1038 source = { |
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1039 b'key': 1, |
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1040 2: -10, |
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1041 } |
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1042 |
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1043 self.assertEqual(loadit(cborutil.streamencode(source)), source) |
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1044 |
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1045 self.assertEqual( |
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1046 loadit(cborutil.streamencodemapfromiter(source.items())), source |
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1047 ) |
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1048 |
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1049 encoded = b''.join(cborutil.streamencode(source)) |
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1050 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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1051 |
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1052 def testnested(self): |
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1053 source = {b'key1': None, b'key2': {b'sub1': b'sub2'}, b'sub2': {}} |
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1054 encoded = b''.join(cborutil.streamencode(source)) |
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1055 |
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1056 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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1057 |
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1058 source = { |
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1059 b'key1': [], |
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1060 b'key2': [None, False], |
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1061 b'key3': {b'foo', b'bar'}, |
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1062 b'key4': {}, |
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1063 } |
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1064 encoded = b''.join(cborutil.streamencode(source)) |
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1065 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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1066 |
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1067 def testillegalkey(self): |
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1068 encoded = b''.join( |
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1069 [ |
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1070 # map header + len 1 |
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1071 b'\xa1', |
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1072 # indefinite length bytestring "foo" in key position |
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1073 b'\x5f\x03foo\xff', |
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1074 ] |
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1075 ) |
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1076 |
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1077 with self.assertRaisesRegex( |
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1078 cborutil.CBORDecodeError, |
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1079 'indefinite length bytestrings not ' 'allowed as map keys', |
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1080 ): |
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1081 cborutil.decodeall(encoded) |
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1082 |
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1083 encoded = b''.join( |
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1084 [ |
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1085 b'\xa1', |
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1086 b'\x80', |
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1087 b'\x43foo', |
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1088 ] |
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1089 ) # empty array |
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1090 |
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1091 with self.assertRaisesRegex( |
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1092 cborutil.CBORDecodeError, 'collections not supported as map keys' |
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1093 ): |
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1094 cborutil.decodeall(encoded) |
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1095 |
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1096 def testillegalvalue(self): |
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1097 encoded = b''.join( |
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1098 [ |
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1099 b'\xa1', # map headers |
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1100 b'\x43foo', # key |
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1101 b'\x5f\x03bar\xff', # indefinite length value |
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1102 ] |
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1103 ) |
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1104 |
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1105 with self.assertRaisesRegex( |
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1106 cborutil.CBORDecodeError, |
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1107 'indefinite length bytestrings not ' 'allowed as map values', |
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1108 ): |
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1109 cborutil.decodeall(encoded) |
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1110 |
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1111 def testpartialdecode(self): |
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1112 source = {b'key1': b'value1'} |
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1113 encoded = b''.join(cborutil.streamencode(source)) |
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1114 |
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1115 self.assertEqual( |
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1116 cborutil.decodeitem(encoded[0:1]), |
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1117 (True, 1, 1, cborutil.SPECIAL_START_MAP), |
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1118 ) |
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1119 self.assertEqual( |
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1120 cborutil.decodeitem(encoded[0:2]), |
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1121 (True, 1, 1, cborutil.SPECIAL_START_MAP), |
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1122 ) |
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1123 |
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1124 source = {b'key%d' % i: None for i in range(23)} |
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1125 encoded = b''.join(cborutil.streamencode(source)) |
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1126 self.assertEqual( |
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1127 cborutil.decodeitem(encoded[0:1]), |
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1128 (True, 23, 1, cborutil.SPECIAL_START_MAP), |
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1129 ) |
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1130 |
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1131 source = {b'key%d' % i: None for i in range(24)} |
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1132 encoded = b''.join(cborutil.streamencode(source)) |
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1133 self.assertEqual( |
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1134 cborutil.decodeitem(encoded[0:1]), |
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1135 (False, None, -1, cborutil.SPECIAL_NONE), |
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1136 ) |
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1137 self.assertEqual( |
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1138 cborutil.decodeitem(encoded[0:2]), |
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1139 (True, 24, 2, cborutil.SPECIAL_START_MAP), |
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1140 ) |
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1141 self.assertEqual( |
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1142 cborutil.decodeitem(encoded[0:3]), |
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1143 (True, 24, 2, cborutil.SPECIAL_START_MAP), |
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1144 ) |
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1145 |
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1146 source = {b'key%d' % i: None for i in range(256)} |
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1147 encoded = b''.join(cborutil.streamencode(source)) |
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1148 self.assertEqual( |
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1149 cborutil.decodeitem(encoded[0:1]), |
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1150 (False, None, -2, cborutil.SPECIAL_NONE), |
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1151 ) |
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1152 self.assertEqual( |
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1153 cborutil.decodeitem(encoded[0:2]), |
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1154 (False, None, -1, cborutil.SPECIAL_NONE), |
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1155 ) |
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1156 self.assertEqual( |
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1157 cborutil.decodeitem(encoded[0:3]), |
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1158 (True, 256, 3, cborutil.SPECIAL_START_MAP), |
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1159 ) |
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1160 self.assertEqual( |
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1161 cborutil.decodeitem(encoded[0:4]), |
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1162 (True, 256, 3, cborutil.SPECIAL_START_MAP), |
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1163 ) |
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1164 |
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1165 source = {b'key%d' % i: None for i in range(65536)} |
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1166 encoded = b''.join(cborutil.streamencode(source)) |
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1167 self.assertEqual( |
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1168 cborutil.decodeitem(encoded[0:1]), |
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1169 (False, None, -4, cborutil.SPECIAL_NONE), |
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1170 ) |
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1171 self.assertEqual( |
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1172 cborutil.decodeitem(encoded[0:2]), |
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1173 (False, None, -3, cborutil.SPECIAL_NONE), |
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1174 ) |
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1175 self.assertEqual( |
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1176 cborutil.decodeitem(encoded[0:3]), |
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1177 (False, None, -2, cborutil.SPECIAL_NONE), |
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1178 ) |
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1179 self.assertEqual( |
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1180 cborutil.decodeitem(encoded[0:4]), |
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1181 (False, None, -1, cborutil.SPECIAL_NONE), |
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1182 ) |
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1183 self.assertEqual( |
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1184 cborutil.decodeitem(encoded[0:5]), |
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1185 (True, 65536, 5, cborutil.SPECIAL_START_MAP), |
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1186 ) |
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1187 self.assertEqual( |
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1188 cborutil.decodeitem(encoded[0:6]), |
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1189 (True, 65536, 5, cborutil.SPECIAL_START_MAP), |
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1190 ) |
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1191 |
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1192 |
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1193 class SemanticTagTests(TestCase): |
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1194 def testdecodeforbidden(self): |
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1195 for i in range(500): |
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1196 if i == cborutil.SEMANTIC_TAG_FINITE_SET: |
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1197 continue |
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1198 |
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1199 tag = cborutil.encodelength(cborutil.MAJOR_TYPE_SEMANTIC, i) |
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1200 |
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1201 encoded = tag + cborutil.encodelength(cborutil.MAJOR_TYPE_UINT, 42) |
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1202 |
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1203 # Partial decode is incomplete. |
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1204 if i < 24: |
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1205 pass |
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1206 elif i < 256: |
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1207 self.assertEqual( |
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1208 cborutil.decodeitem(encoded[0:1]), |
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1209 (False, None, -1, cborutil.SPECIAL_NONE), |
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1210 ) |
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1211 elif i < 65536: |
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1212 self.assertEqual( |
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1213 cborutil.decodeitem(encoded[0:1]), |
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1214 (False, None, -2, cborutil.SPECIAL_NONE), |
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1215 ) |
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1216 self.assertEqual( |
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1217 cborutil.decodeitem(encoded[0:2]), |
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1218 (False, None, -1, cborutil.SPECIAL_NONE), |
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1219 ) |
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1220 |
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1221 with self.assertRaisesRegex( |
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1222 cborutil.CBORDecodeError, r'semantic tag \d+ not allowed' |
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1223 ): |
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1224 cborutil.decodeitem(encoded) |
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1225 |
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1226 |
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1227 class SpecialTypesTests(TestCase): |
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1228 def testforbiddentypes(self): |
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1229 for i in range(256): |
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1230 if i == cborutil.SUBTYPE_FALSE: |
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1231 continue |
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1232 elif i == cborutil.SUBTYPE_TRUE: |
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1233 continue |
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1234 elif i == cborutil.SUBTYPE_NULL: |
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1235 continue |
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1236 |
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1237 encoded = cborutil.encodelength(cborutil.MAJOR_TYPE_SPECIAL, i) |
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1238 |
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1239 with self.assertRaisesRegex( |
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1240 cborutil.CBORDecodeError, r'special type \d+ not allowed' |
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1241 ): |
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1242 cborutil.decodeitem(encoded) |
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1243 |
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1244 |
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1245 class SansIODecoderTests(TestCase): |
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1246 def testemptyinput(self): |
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1247 decoder = cborutil.sansiodecoder() |
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1248 self.assertEqual(decoder.decode(b''), (False, 0, 0)) |
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1249 |
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1250 |
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1251 class BufferingDecoderTests(TestCase): |
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1252 def testsimple(self): |
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1253 source = [ |
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1254 b'foobar', |
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1255 b'x' * 128, |
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1256 {b'foo': b'bar'}, |
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1257 True, |
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1258 False, |
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1259 None, |
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1260 [None] * 128, |
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1261 ] |
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1262 |
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1263 encoded = b''.join(cborutil.streamencode(source)) |
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1264 |
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1265 for step in range(1, 32): |
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1266 decoder = cborutil.bufferingdecoder() |
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1267 start = 0 |
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1268 |
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1269 while start < len(encoded): |
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1270 decoder.decode(encoded[start : start + step]) |
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1271 start += step |
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1272 |
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1273 self.assertEqual(decoder.getavailable(), [source]) |
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1274 |
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1275 def testbytearray(self): |
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1276 source = b''.join(cborutil.streamencode(b'foobar')) |
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1277 |
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1278 decoder = cborutil.bufferingdecoder() |
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1279 decoder.decode(bytearray(source)) |
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1280 |
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1281 self.assertEqual(decoder.getavailable(), [b'foobar']) |
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1282 |
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1283 |
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1284 class DecodeallTests(TestCase): |
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1285 def testemptyinput(self): |
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1286 self.assertEqual(cborutil.decodeall(b''), []) |
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1287 |
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1288 def testpartialinput(self): |
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1289 encoded = b''.join( |
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1290 [ |
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1291 b'\x82', |
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1292 b'\x01', |
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1293 ] # array of 2 elements # integer 1 |
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1294 ) |
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1295 |
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1296 with self.assertRaisesRegex( |
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1297 cborutil.CBORDecodeError, 'input data not complete' |
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1298 ): |
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1299 cborutil.decodeall(encoded) |
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1300 |
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1301 |
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1302 if __name__ == '__main__': |
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1303 import silenttestrunner |
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1304 |
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1305 silenttestrunner.main(__name__) |