Mercurial > hg
annotate tests/test-cbor.py @ 51925:3a90a6fd710d
dirstate: subclass the new dirstate Protocol class
Behold the chaos that ensues. We'll use the generated *.pyi files to apply type
annotations to the interface, and see how much agrees with the documentation.
Since the CamelCase name was used to try to work around pytype issues with zope
interfaces and is a new innovation this cycle (see c1d7ac70980b), drop the
CamelCase name. I think the Protocol classes *should* be CamelCase, but that
can be done later in one pass. For now, the CamelCase alias is extra noise in
the *.pyi files.
author | Matt Harbison <matt_harbison@yahoo.com> |
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date | Thu, 26 Sep 2024 18:52:46 -0400 |
parents | ca7bde5dbafb |
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rev | line source |
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1 import os |
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2 import sys |
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3 import unittest |
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4 |
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5 # TODO migrate to canned cbor test strings and stop using thirdparty.cbor |
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6 tpp = os.path.normpath( |
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7 os.path.join(os.path.dirname(__file__), '..', 'mercurial', 'thirdparty') |
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8 ) |
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9 if not os.path.exists(tpp): |
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10 # skip, not in a repo |
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11 sys.exit(80) |
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12 sys.path[0:0] = [tpp] |
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13 import cbor |
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14 |
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15 del sys.path[0] |
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16 |
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17 from mercurial.utils import cborutil |
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18 |
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19 |
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20 class TestCase(unittest.TestCase): |
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21 if not getattr(unittest.TestCase, 'assertRaisesRegex', False): |
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22 # Python 3.7 deprecates the regex*p* version, but 2.7 lacks |
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23 # the regex version. |
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24 assertRaisesRegex = ( # camelcase-required |
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25 unittest.TestCase.assertRaisesRegexp |
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26 ) |
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27 |
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28 |
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29 def loadit(it): |
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30 return cbor.loads(b''.join(it)) |
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31 |
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32 |
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33 class BytestringTests(TestCase): |
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34 def testsimple(self): |
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35 self.assertEqual( |
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36 list(cborutil.streamencode(b'foobar')), [b'\x46', b'foobar'] |
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37 ) |
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38 |
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39 self.assertEqual(loadit(cborutil.streamencode(b'foobar')), b'foobar') |
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40 |
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41 self.assertEqual(cborutil.decodeall(b'\x46foobar'), [b'foobar']) |
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42 |
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43 self.assertEqual( |
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44 cborutil.decodeall(b'\x46foobar\x45fizbi'), [b'foobar', b'fizbi'] |
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45 ) |
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46 |
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47 def testlong(self): |
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48 source = b'x' * 1048576 |
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49 |
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50 self.assertEqual(loadit(cborutil.streamencode(source)), source) |
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51 |
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52 encoded = b''.join(cborutil.streamencode(source)) |
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53 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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54 |
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55 def testfromiter(self): |
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56 # This is the example from RFC 7049 Section 2.2.2. |
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57 source = [b'\xaa\xbb\xcc\xdd', b'\xee\xff\x99'] |
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58 |
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59 self.assertEqual( |
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60 list(cborutil.streamencodebytestringfromiter(source)), |
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61 [ |
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62 b'\x5f', |
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63 b'\x44', |
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64 b'\xaa\xbb\xcc\xdd', |
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65 b'\x43', |
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66 b'\xee\xff\x99', |
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67 b'\xff', |
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68 ], |
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69 ) |
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70 |
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71 self.assertEqual( |
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72 loadit(cborutil.streamencodebytestringfromiter(source)), |
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73 b''.join(source), |
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74 ) |
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75 |
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76 self.assertEqual( |
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77 cborutil.decodeall( |
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78 b'\x5f\x44\xaa\xbb\xcc\xdd' b'\x43\xee\xff\x99\xff' |
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79 ), |
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80 [b'\xaa\xbb\xcc\xdd', b'\xee\xff\x99', b''], |
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81 ) |
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82 |
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83 for i, chunk in enumerate( |
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84 cborutil.decodeall( |
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85 b'\x5f\x44\xaa\xbb\xcc\xdd' b'\x43\xee\xff\x99\xff' |
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86 ) |
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87 ): |
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88 self.assertIsInstance(chunk, cborutil.bytestringchunk) |
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89 |
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90 if i == 0: |
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91 self.assertTrue(chunk.isfirst) |
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92 else: |
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93 self.assertFalse(chunk.isfirst) |
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94 |
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95 if i == 2: |
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96 self.assertTrue(chunk.islast) |
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97 else: |
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98 self.assertFalse(chunk.islast) |
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99 |
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100 def testfromiterlarge(self): |
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101 source = [b'a' * 16, b'b' * 128, b'c' * 1024, b'd' * 1048576] |
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102 |
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103 self.assertEqual( |
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104 loadit(cborutil.streamencodebytestringfromiter(source)), |
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105 b''.join(source), |
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106 ) |
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107 |
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108 def testindefinite(self): |
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109 source = b'\x00\x01\x02\x03' + b'\xff' * 16384 |
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110 |
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111 it = cborutil.streamencodeindefinitebytestring(source, chunksize=2) |
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112 |
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113 self.assertEqual(next(it), b'\x5f') |
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114 self.assertEqual(next(it), b'\x42') |
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115 self.assertEqual(next(it), b'\x00\x01') |
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116 self.assertEqual(next(it), b'\x42') |
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117 self.assertEqual(next(it), b'\x02\x03') |
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118 self.assertEqual(next(it), b'\x42') |
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119 self.assertEqual(next(it), b'\xff\xff') |
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120 |
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121 dest = b''.join( |
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122 cborutil.streamencodeindefinitebytestring(source, chunksize=42) |
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123 ) |
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124 self.assertEqual(cbor.loads(dest), source) |
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125 |
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126 self.assertEqual(b''.join(cborutil.decodeall(dest)), source) |
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127 |
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128 for chunk in cborutil.decodeall(dest): |
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129 self.assertIsInstance(chunk, cborutil.bytestringchunk) |
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130 self.assertIn(len(chunk), (0, 8, 42)) |
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131 |
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132 encoded = b'\x5f\xff' |
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133 b = cborutil.decodeall(encoded) |
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134 self.assertEqual(b, [b'']) |
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135 self.assertTrue(b[0].isfirst) |
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136 self.assertTrue(b[0].islast) |
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137 |
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138 def testdecodevariouslengths(self): |
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139 for i in (0, 1, 22, 23, 24, 25, 254, 255, 256, 65534, 65535, 65536): |
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140 source = b'x' * i |
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141 encoded = b''.join(cborutil.streamencode(source)) |
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142 |
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143 if len(source) < 24: |
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144 hlen = 1 |
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145 elif len(source) < 256: |
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146 hlen = 2 |
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147 elif len(source) < 65536: |
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148 hlen = 3 |
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149 elif len(source) < 1048576: |
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150 hlen = 5 |
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151 |
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152 self.assertEqual( |
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153 cborutil.decodeitem(encoded), |
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154 (True, source, hlen + len(source), cborutil.SPECIAL_NONE), |
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155 ) |
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156 |
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157 def testpartialdecode(self): |
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158 encoded = b''.join(cborutil.streamencode(b'foobar')) |
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159 |
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160 self.assertEqual( |
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161 cborutil.decodeitem(encoded[0:1]), |
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162 (False, None, -6, cborutil.SPECIAL_NONE), |
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163 ) |
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164 self.assertEqual( |
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165 cborutil.decodeitem(encoded[0:2]), |
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166 (False, None, -5, cborutil.SPECIAL_NONE), |
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167 ) |
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168 self.assertEqual( |
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169 cborutil.decodeitem(encoded[0:3]), |
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170 (False, None, -4, cborutil.SPECIAL_NONE), |
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171 ) |
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172 self.assertEqual( |
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173 cborutil.decodeitem(encoded[0:4]), |
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174 (False, None, -3, cborutil.SPECIAL_NONE), |
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175 ) |
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176 self.assertEqual( |
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177 cborutil.decodeitem(encoded[0:5]), |
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178 (False, None, -2, cborutil.SPECIAL_NONE), |
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179 ) |
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180 self.assertEqual( |
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181 cborutil.decodeitem(encoded[0:6]), |
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182 (False, None, -1, cborutil.SPECIAL_NONE), |
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183 ) |
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184 self.assertEqual( |
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185 cborutil.decodeitem(encoded[0:7]), |
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186 (True, b'foobar', 7, cborutil.SPECIAL_NONE), |
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187 ) |
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188 |
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189 def testpartialdecodevariouslengths(self): |
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190 lens = [ |
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191 2, |
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192 3, |
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193 10, |
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194 23, |
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195 24, |
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196 25, |
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197 31, |
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198 100, |
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199 254, |
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200 255, |
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201 256, |
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202 257, |
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203 16384, |
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204 65534, |
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205 65535, |
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206 65536, |
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207 65537, |
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208 131071, |
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209 131072, |
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210 131073, |
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211 1048575, |
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212 1048576, |
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213 1048577, |
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214 ] |
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215 |
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216 for size in lens: |
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217 if size < 24: |
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218 hlen = 1 |
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219 elif size < 2**8: |
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220 hlen = 2 |
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221 elif size < 2**16: |
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222 hlen = 3 |
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223 elif size < 2**32: |
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224 hlen = 5 |
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225 else: |
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226 assert False |
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227 |
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228 source = b'x' * size |
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229 encoded = b''.join(cborutil.streamencode(source)) |
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230 |
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231 res = cborutil.decodeitem(encoded[0:1]) |
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232 |
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233 if hlen > 1: |
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234 self.assertEqual( |
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235 res, (False, None, -(hlen - 1), cborutil.SPECIAL_NONE) |
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236 ) |
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237 else: |
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238 self.assertEqual( |
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239 res, |
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240 (False, None, -(size + hlen - 1), cborutil.SPECIAL_NONE), |
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241 ) |
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242 |
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243 # Decoding partial header reports remaining header size. |
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244 for i in range(hlen - 1): |
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245 self.assertEqual( |
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246 cborutil.decodeitem(encoded[0 : i + 1]), |
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247 (False, None, -(hlen - i - 1), cborutil.SPECIAL_NONE), |
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248 ) |
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249 |
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250 # Decoding complete header reports item size. |
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251 self.assertEqual( |
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252 cborutil.decodeitem(encoded[0:hlen]), |
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253 (False, None, -size, cborutil.SPECIAL_NONE), |
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254 ) |
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255 |
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256 # Decoding single byte after header reports item size - 1 |
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257 self.assertEqual( |
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258 cborutil.decodeitem(encoded[0 : hlen + 1]), |
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259 (False, None, -(size - 1), cborutil.SPECIAL_NONE), |
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260 ) |
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261 |
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262 # Decoding all but the last byte reports -1 needed. |
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263 self.assertEqual( |
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264 cborutil.decodeitem(encoded[0 : hlen + size - 1]), |
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265 (False, None, -1, cborutil.SPECIAL_NONE), |
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266 ) |
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267 |
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268 # Decoding last byte retrieves value. |
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269 self.assertEqual( |
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270 cborutil.decodeitem(encoded[0 : hlen + size]), |
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271 (True, source, hlen + size, cborutil.SPECIAL_NONE), |
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272 ) |
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273 |
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274 def testindefinitepartialdecode(self): |
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275 encoded = b''.join( |
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276 cborutil.streamencodebytestringfromiter([b'foobar', b'biz']) |
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277 ) |
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278 |
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279 # First item should be begin of bytestring special. |
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280 self.assertEqual( |
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281 cborutil.decodeitem(encoded[0:1]), |
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282 (True, None, 1, cborutil.SPECIAL_START_INDEFINITE_BYTESTRING), |
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283 ) |
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284 |
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285 # Second item should be the first chunk. But only available when |
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286 # we give it 7 bytes (1 byte header + 6 byte chunk). |
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287 self.assertEqual( |
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288 cborutil.decodeitem(encoded[1:2]), |
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289 (False, None, -6, cborutil.SPECIAL_NONE), |
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290 ) |
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291 self.assertEqual( |
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292 cborutil.decodeitem(encoded[1:3]), |
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293 (False, None, -5, cborutil.SPECIAL_NONE), |
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294 ) |
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295 self.assertEqual( |
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296 cborutil.decodeitem(encoded[1:4]), |
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297 (False, None, -4, cborutil.SPECIAL_NONE), |
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298 ) |
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299 self.assertEqual( |
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300 cborutil.decodeitem(encoded[1:5]), |
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301 (False, None, -3, cborutil.SPECIAL_NONE), |
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302 ) |
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303 self.assertEqual( |
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304 cborutil.decodeitem(encoded[1:6]), |
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305 (False, None, -2, cborutil.SPECIAL_NONE), |
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306 ) |
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307 self.assertEqual( |
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308 cborutil.decodeitem(encoded[1:7]), |
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309 (False, None, -1, cborutil.SPECIAL_NONE), |
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310 ) |
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311 |
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312 self.assertEqual( |
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313 cborutil.decodeitem(encoded[1:8]), |
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314 (True, b'foobar', 7, cborutil.SPECIAL_NONE), |
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315 ) |
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316 |
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317 # Third item should be second chunk. But only available when |
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318 # we give it 4 bytes (1 byte header + 3 byte chunk). |
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319 self.assertEqual( |
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320 cborutil.decodeitem(encoded[8:9]), |
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321 (False, None, -3, cborutil.SPECIAL_NONE), |
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322 ) |
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323 self.assertEqual( |
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324 cborutil.decodeitem(encoded[8:10]), |
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325 (False, None, -2, cborutil.SPECIAL_NONE), |
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326 ) |
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327 self.assertEqual( |
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328 cborutil.decodeitem(encoded[8:11]), |
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329 (False, None, -1, cborutil.SPECIAL_NONE), |
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330 ) |
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331 |
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332 self.assertEqual( |
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333 cborutil.decodeitem(encoded[8:12]), |
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334 (True, b'biz', 4, cborutil.SPECIAL_NONE), |
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335 ) |
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336 |
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337 # Fourth item should be end of indefinite stream marker. |
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338 self.assertEqual( |
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339 cborutil.decodeitem(encoded[12:13]), |
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340 (True, None, 1, cborutil.SPECIAL_INDEFINITE_BREAK), |
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341 ) |
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342 |
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343 # Now test the behavior when going through the decoder. |
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344 |
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345 self.assertEqual( |
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346 cborutil.sansiodecoder().decode(encoded[0:1]), (False, 1, 0) |
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347 ) |
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348 self.assertEqual( |
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349 cborutil.sansiodecoder().decode(encoded[0:2]), (False, 1, 6) |
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350 ) |
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351 self.assertEqual( |
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352 cborutil.sansiodecoder().decode(encoded[0:3]), (False, 1, 5) |
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353 ) |
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354 self.assertEqual( |
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355 cborutil.sansiodecoder().decode(encoded[0:4]), (False, 1, 4) |
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356 ) |
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357 self.assertEqual( |
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358 cborutil.sansiodecoder().decode(encoded[0:5]), (False, 1, 3) |
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359 ) |
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360 self.assertEqual( |
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361 cborutil.sansiodecoder().decode(encoded[0:6]), (False, 1, 2) |
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362 ) |
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363 self.assertEqual( |
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364 cborutil.sansiodecoder().decode(encoded[0:7]), (False, 1, 1) |
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365 ) |
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366 self.assertEqual( |
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367 cborutil.sansiodecoder().decode(encoded[0:8]), (True, 8, 0) |
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368 ) |
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369 |
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370 self.assertEqual( |
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371 cborutil.sansiodecoder().decode(encoded[0:9]), (True, 8, 3) |
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372 ) |
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373 self.assertEqual( |
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374 cborutil.sansiodecoder().decode(encoded[0:10]), (True, 8, 2) |
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375 ) |
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376 self.assertEqual( |
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377 cborutil.sansiodecoder().decode(encoded[0:11]), (True, 8, 1) |
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378 ) |
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379 self.assertEqual( |
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380 cborutil.sansiodecoder().decode(encoded[0:12]), (True, 12, 0) |
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381 ) |
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382 |
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383 self.assertEqual( |
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384 cborutil.sansiodecoder().decode(encoded[0:13]), (True, 13, 0) |
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385 ) |
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386 |
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387 decoder = cborutil.sansiodecoder() |
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388 decoder.decode(encoded[0:8]) |
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389 values = decoder.getavailable() |
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390 self.assertEqual(values, [b'foobar']) |
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391 self.assertTrue(values[0].isfirst) |
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392 self.assertFalse(values[0].islast) |
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393 |
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394 self.assertEqual(decoder.decode(encoded[8:12]), (True, 4, 0)) |
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395 values = decoder.getavailable() |
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396 self.assertEqual(values, [b'biz']) |
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397 self.assertFalse(values[0].isfirst) |
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398 self.assertFalse(values[0].islast) |
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399 |
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400 self.assertEqual(decoder.decode(encoded[12:]), (True, 1, 0)) |
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401 values = decoder.getavailable() |
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402 self.assertEqual(values, [b'']) |
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403 self.assertFalse(values[0].isfirst) |
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404 self.assertTrue(values[0].islast) |
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405 |
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406 |
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407 class StringTests(TestCase): |
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408 def testdecodeforbidden(self): |
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409 encoded = b'\x63foo' |
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410 with self.assertRaisesRegex( |
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411 cborutil.CBORDecodeError, 'string major type not supported' |
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412 ): |
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413 cborutil.decodeall(encoded) |
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414 |
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415 |
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416 class IntTests(TestCase): |
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417 def testsmall(self): |
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418 self.assertEqual(list(cborutil.streamencode(0)), [b'\x00']) |
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419 self.assertEqual(cborutil.decodeall(b'\x00'), [0]) |
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420 |
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421 self.assertEqual(list(cborutil.streamencode(1)), [b'\x01']) |
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422 self.assertEqual(cborutil.decodeall(b'\x01'), [1]) |
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423 |
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424 self.assertEqual(list(cborutil.streamencode(2)), [b'\x02']) |
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425 self.assertEqual(cborutil.decodeall(b'\x02'), [2]) |
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426 |
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427 self.assertEqual(list(cborutil.streamencode(3)), [b'\x03']) |
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428 self.assertEqual(cborutil.decodeall(b'\x03'), [3]) |
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429 |
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430 self.assertEqual(list(cborutil.streamencode(4)), [b'\x04']) |
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431 self.assertEqual(cborutil.decodeall(b'\x04'), [4]) |
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432 |
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433 # Multiple value decode works. |
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434 self.assertEqual( |
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435 cborutil.decodeall(b'\x00\x01\x02\x03\x04'), [0, 1, 2, 3, 4] |
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436 ) |
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437 |
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438 def testnegativesmall(self): |
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439 self.assertEqual(list(cborutil.streamencode(-1)), [b'\x20']) |
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440 self.assertEqual(cborutil.decodeall(b'\x20'), [-1]) |
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441 |
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442 self.assertEqual(list(cborutil.streamencode(-2)), [b'\x21']) |
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443 self.assertEqual(cborutil.decodeall(b'\x21'), [-2]) |
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444 |
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445 self.assertEqual(list(cborutil.streamencode(-3)), [b'\x22']) |
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446 self.assertEqual(cborutil.decodeall(b'\x22'), [-3]) |
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447 |
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448 self.assertEqual(list(cborutil.streamencode(-4)), [b'\x23']) |
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449 self.assertEqual(cborutil.decodeall(b'\x23'), [-4]) |
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450 |
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451 self.assertEqual(list(cborutil.streamencode(-5)), [b'\x24']) |
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452 self.assertEqual(cborutil.decodeall(b'\x24'), [-5]) |
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453 |
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454 # Multiple value decode works. |
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455 self.assertEqual( |
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456 cborutil.decodeall(b'\x20\x21\x22\x23\x24'), [-1, -2, -3, -4, -5] |
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457 ) |
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458 |
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459 def testrange(self): |
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460 for i in range(-70000, 70000, 10): |
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461 encoded = b''.join(cborutil.streamencode(i)) |
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462 |
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463 self.assertEqual(encoded, cbor.dumps(i)) |
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464 self.assertEqual(cborutil.decodeall(encoded), [i]) |
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465 |
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466 def testdecodepartialubyte(self): |
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467 encoded = b''.join(cborutil.streamencode(250)) |
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468 |
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469 self.assertEqual( |
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470 cborutil.decodeitem(encoded[0:1]), |
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471 (False, None, -1, cborutil.SPECIAL_NONE), |
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472 ) |
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473 self.assertEqual( |
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474 cborutil.decodeitem(encoded[0:2]), |
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475 (True, 250, 2, cborutil.SPECIAL_NONE), |
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476 ) |
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477 |
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478 def testdecodepartialbyte(self): |
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479 encoded = b''.join(cborutil.streamencode(-42)) |
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480 self.assertEqual( |
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481 cborutil.decodeitem(encoded[0:1]), |
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482 (False, None, -1, cborutil.SPECIAL_NONE), |
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483 ) |
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484 self.assertEqual( |
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485 cborutil.decodeitem(encoded[0:2]), |
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486 (True, -42, 2, cborutil.SPECIAL_NONE), |
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487 ) |
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488 |
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489 def testdecodepartialushort(self): |
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490 encoded = b''.join(cborutil.streamencode(2**15)) |
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491 |
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492 self.assertEqual( |
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493 cborutil.decodeitem(encoded[0:1]), |
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494 (False, None, -2, cborutil.SPECIAL_NONE), |
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495 ) |
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496 self.assertEqual( |
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497 cborutil.decodeitem(encoded[0:2]), |
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498 (False, None, -1, cborutil.SPECIAL_NONE), |
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499 ) |
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500 self.assertEqual( |
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501 cborutil.decodeitem(encoded[0:5]), |
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502 (True, 2**15, 3, cborutil.SPECIAL_NONE), |
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503 ) |
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504 |
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505 def testdecodepartialshort(self): |
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506 encoded = b''.join(cborutil.streamencode(-1024)) |
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507 |
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508 self.assertEqual( |
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509 cborutil.decodeitem(encoded[0:1]), |
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510 (False, None, -2, cborutil.SPECIAL_NONE), |
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511 ) |
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512 self.assertEqual( |
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513 cborutil.decodeitem(encoded[0:2]), |
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514 (False, None, -1, cborutil.SPECIAL_NONE), |
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515 ) |
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516 self.assertEqual( |
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517 cborutil.decodeitem(encoded[0:3]), |
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518 (True, -1024, 3, cborutil.SPECIAL_NONE), |
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519 ) |
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520 |
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521 def testdecodepartialulong(self): |
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522 encoded = b''.join(cborutil.streamencode(2**28)) |
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523 |
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524 self.assertEqual( |
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525 cborutil.decodeitem(encoded[0:1]), |
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526 (False, None, -4, cborutil.SPECIAL_NONE), |
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527 ) |
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528 self.assertEqual( |
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529 cborutil.decodeitem(encoded[0:2]), |
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530 (False, None, -3, cborutil.SPECIAL_NONE), |
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531 ) |
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532 self.assertEqual( |
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533 cborutil.decodeitem(encoded[0:3]), |
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534 (False, None, -2, cborutil.SPECIAL_NONE), |
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535 ) |
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536 self.assertEqual( |
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537 cborutil.decodeitem(encoded[0:4]), |
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538 (False, None, -1, cborutil.SPECIAL_NONE), |
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539 ) |
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540 self.assertEqual( |
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541 cborutil.decodeitem(encoded[0:5]), |
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542 (True, 2**28, 5, cborutil.SPECIAL_NONE), |
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543 ) |
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544 |
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545 def testdecodepartiallong(self): |
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546 encoded = b''.join(cborutil.streamencode(-1048580)) |
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547 |
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548 self.assertEqual( |
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549 cborutil.decodeitem(encoded[0:1]), |
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550 (False, None, -4, cborutil.SPECIAL_NONE), |
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551 ) |
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552 self.assertEqual( |
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553 cborutil.decodeitem(encoded[0:2]), |
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554 (False, None, -3, cborutil.SPECIAL_NONE), |
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555 ) |
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556 self.assertEqual( |
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557 cborutil.decodeitem(encoded[0:3]), |
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558 (False, None, -2, cborutil.SPECIAL_NONE), |
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559 ) |
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560 self.assertEqual( |
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561 cborutil.decodeitem(encoded[0:4]), |
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562 (False, None, -1, cborutil.SPECIAL_NONE), |
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563 ) |
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564 self.assertEqual( |
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565 cborutil.decodeitem(encoded[0:5]), |
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566 (True, -1048580, 5, cborutil.SPECIAL_NONE), |
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567 ) |
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|
568 |
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|
569 def testdecodepartialulonglong(self): |
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570 encoded = b''.join(cborutil.streamencode(2**32)) |
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571 |
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572 self.assertEqual( |
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573 cborutil.decodeitem(encoded[0:1]), |
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574 (False, None, -8, cborutil.SPECIAL_NONE), |
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575 ) |
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576 self.assertEqual( |
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577 cborutil.decodeitem(encoded[0:2]), |
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578 (False, None, -7, cborutil.SPECIAL_NONE), |
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579 ) |
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580 self.assertEqual( |
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581 cborutil.decodeitem(encoded[0:3]), |
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|
582 (False, None, -6, cborutil.SPECIAL_NONE), |
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583 ) |
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584 self.assertEqual( |
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585 cborutil.decodeitem(encoded[0:4]), |
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586 (False, None, -5, cborutil.SPECIAL_NONE), |
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587 ) |
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588 self.assertEqual( |
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589 cborutil.decodeitem(encoded[0:5]), |
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590 (False, None, -4, cborutil.SPECIAL_NONE), |
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591 ) |
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592 self.assertEqual( |
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593 cborutil.decodeitem(encoded[0:6]), |
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594 (False, None, -3, cborutil.SPECIAL_NONE), |
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595 ) |
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596 self.assertEqual( |
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597 cborutil.decodeitem(encoded[0:7]), |
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598 (False, None, -2, cborutil.SPECIAL_NONE), |
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599 ) |
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600 self.assertEqual( |
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601 cborutil.decodeitem(encoded[0:8]), |
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602 (False, None, -1, cborutil.SPECIAL_NONE), |
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|
603 ) |
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604 self.assertEqual( |
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605 cborutil.decodeitem(encoded[0:9]), |
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606 (True, 2**32, 9, cborutil.SPECIAL_NONE), |
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607 ) |
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608 |
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609 with self.assertRaisesRegex( |
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610 cborutil.CBORDecodeError, 'input data not fully consumed' |
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611 ): |
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612 cborutil.decodeall(encoded[0:1]) |
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613 |
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614 with self.assertRaisesRegex( |
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615 cborutil.CBORDecodeError, 'input data not fully consumed' |
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616 ): |
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617 cborutil.decodeall(encoded[0:2]) |
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618 |
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619 def testdecodepartiallonglong(self): |
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620 encoded = b''.join(cborutil.streamencode(-7000000000)) |
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621 |
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622 self.assertEqual( |
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623 cborutil.decodeitem(encoded[0:1]), |
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624 (False, None, -8, cborutil.SPECIAL_NONE), |
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625 ) |
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626 self.assertEqual( |
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627 cborutil.decodeitem(encoded[0:2]), |
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628 (False, None, -7, cborutil.SPECIAL_NONE), |
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629 ) |
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630 self.assertEqual( |
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631 cborutil.decodeitem(encoded[0:3]), |
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632 (False, None, -6, cborutil.SPECIAL_NONE), |
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633 ) |
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634 self.assertEqual( |
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635 cborutil.decodeitem(encoded[0:4]), |
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636 (False, None, -5, cborutil.SPECIAL_NONE), |
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637 ) |
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638 self.assertEqual( |
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639 cborutil.decodeitem(encoded[0:5]), |
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640 (False, None, -4, cborutil.SPECIAL_NONE), |
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641 ) |
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642 self.assertEqual( |
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643 cborutil.decodeitem(encoded[0:6]), |
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644 (False, None, -3, cborutil.SPECIAL_NONE), |
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645 ) |
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646 self.assertEqual( |
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647 cborutil.decodeitem(encoded[0:7]), |
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648 (False, None, -2, cborutil.SPECIAL_NONE), |
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649 ) |
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650 self.assertEqual( |
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651 cborutil.decodeitem(encoded[0:8]), |
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652 (False, None, -1, cborutil.SPECIAL_NONE), |
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653 ) |
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654 self.assertEqual( |
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655 cborutil.decodeitem(encoded[0:9]), |
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656 (True, -7000000000, 9, cborutil.SPECIAL_NONE), |
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657 ) |
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658 |
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659 |
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660 class ArrayTests(TestCase): |
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661 def testempty(self): |
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662 self.assertEqual(list(cborutil.streamencode([])), [b'\x80']) |
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663 self.assertEqual(loadit(cborutil.streamencode([])), []) |
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664 |
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665 self.assertEqual(cborutil.decodeall(b'\x80'), [[]]) |
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666 |
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667 def testbasic(self): |
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668 source = [b'foo', b'bar', 1, -10] |
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669 |
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670 chunks = [b'\x84', b'\x43', b'foo', b'\x43', b'bar', b'\x01', b'\x29'] |
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671 |
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672 self.assertEqual(list(cborutil.streamencode(source)), chunks) |
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673 |
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674 self.assertEqual(cborutil.decodeall(b''.join(chunks)), [source]) |
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675 |
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676 def testemptyfromiter(self): |
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677 self.assertEqual( |
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678 b''.join(cborutil.streamencodearrayfromiter([])), b'\x9f\xff' |
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679 ) |
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680 |
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681 with self.assertRaisesRegex( |
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682 cborutil.CBORDecodeError, 'indefinite length uint not allowed' |
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683 ): |
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684 cborutil.decodeall(b'\x9f\xff') |
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685 |
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686 def testfromiter1(self): |
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687 source = [b'foo'] |
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688 |
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689 self.assertEqual( |
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690 list(cborutil.streamencodearrayfromiter(source)), |
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691 [ |
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692 b'\x9f', |
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693 b'\x43', |
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694 b'foo', |
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695 b'\xff', |
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696 ], |
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697 ) |
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698 |
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699 dest = b''.join(cborutil.streamencodearrayfromiter(source)) |
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700 self.assertEqual(cbor.loads(dest), source) |
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701 |
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702 with self.assertRaisesRegex( |
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703 cborutil.CBORDecodeError, 'indefinite length uint not allowed' |
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705 cborutil.decodeall(dest) |
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706 |
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707 def testtuple(self): |
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708 source = (b'foo', None, 42) |
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709 encoded = b''.join(cborutil.streamencode(source)) |
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710 |
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711 self.assertEqual(cbor.loads(encoded), list(source)) |
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712 |
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713 self.assertEqual(cborutil.decodeall(encoded), [list(source)]) |
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714 |
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715 def testpartialdecode(self): |
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716 source = list(range(4)) |
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717 encoded = b''.join(cborutil.streamencode(source)) |
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718 self.assertEqual( |
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719 cborutil.decodeitem(encoded[0:1]), |
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720 (True, 4, 1, cborutil.SPECIAL_START_ARRAY), |
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721 ) |
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722 self.assertEqual( |
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723 cborutil.decodeitem(encoded[0:2]), |
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724 (True, 4, 1, cborutil.SPECIAL_START_ARRAY), |
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725 ) |
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726 |
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727 source = list(range(23)) |
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728 encoded = b''.join(cborutil.streamencode(source)) |
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729 self.assertEqual( |
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730 cborutil.decodeitem(encoded[0:1]), |
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731 (True, 23, 1, cborutil.SPECIAL_START_ARRAY), |
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732 ) |
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733 self.assertEqual( |
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734 cborutil.decodeitem(encoded[0:2]), |
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735 (True, 23, 1, cborutil.SPECIAL_START_ARRAY), |
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736 ) |
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737 |
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738 source = list(range(24)) |
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739 encoded = b''.join(cborutil.streamencode(source)) |
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740 self.assertEqual( |
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741 cborutil.decodeitem(encoded[0:1]), |
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742 (False, None, -1, cborutil.SPECIAL_NONE), |
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743 ) |
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744 self.assertEqual( |
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745 cborutil.decodeitem(encoded[0:2]), |
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746 (True, 24, 2, cborutil.SPECIAL_START_ARRAY), |
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747 ) |
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748 self.assertEqual( |
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749 cborutil.decodeitem(encoded[0:3]), |
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750 (True, 24, 2, cborutil.SPECIAL_START_ARRAY), |
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751 ) |
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752 |
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753 source = list(range(256)) |
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754 encoded = b''.join(cborutil.streamencode(source)) |
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755 self.assertEqual( |
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756 cborutil.decodeitem(encoded[0:1]), |
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757 (False, None, -2, cborutil.SPECIAL_NONE), |
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758 ) |
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759 self.assertEqual( |
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760 cborutil.decodeitem(encoded[0:2]), |
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761 (False, None, -1, cborutil.SPECIAL_NONE), |
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762 ) |
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763 self.assertEqual( |
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764 cborutil.decodeitem(encoded[0:3]), |
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765 (True, 256, 3, cborutil.SPECIAL_START_ARRAY), |
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766 ) |
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767 self.assertEqual( |
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768 cborutil.decodeitem(encoded[0:4]), |
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769 (True, 256, 3, cborutil.SPECIAL_START_ARRAY), |
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770 ) |
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771 |
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772 def testnested(self): |
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773 source = [[], [], [[], [], []]] |
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774 encoded = b''.join(cborutil.streamencode(source)) |
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775 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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776 |
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777 source = [True, None, [True, 0, 2], [None], [], [[[]], -87]] |
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778 encoded = b''.join(cborutil.streamencode(source)) |
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779 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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780 |
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781 # A set within an array. |
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782 source = [None, {b'foo', b'bar', None, False}, set()] |
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783 encoded = b''.join(cborutil.streamencode(source)) |
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784 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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785 |
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786 # A map within an array. |
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787 source = [None, {}, {b'foo': b'bar', True: False}, [{}]] |
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788 encoded = b''.join(cborutil.streamencode(source)) |
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789 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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790 |
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791 def testindefinitebytestringvalues(self): |
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792 # Single value array whose value is an empty indefinite bytestring. |
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793 encoded = b'\x81\x5f\x40\xff' |
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794 |
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795 with self.assertRaisesRegex( |
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796 cborutil.CBORDecodeError, |
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797 'indefinite length bytestrings not ' 'allowed as array values', |
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798 ): |
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799 cborutil.decodeall(encoded) |
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800 |
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801 |
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802 class SetTests(TestCase): |
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803 def testempty(self): |
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804 self.assertEqual( |
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805 list(cborutil.streamencode(set())), |
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806 [ |
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807 b'\xd9\x01\x02', |
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808 b'\x80', |
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809 ], |
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810 ) |
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811 |
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812 self.assertEqual(cborutil.decodeall(b'\xd9\x01\x02\x80'), [set()]) |
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813 |
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814 def testset(self): |
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815 source = {b'foo', None, 42} |
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816 encoded = b''.join(cborutil.streamencode(source)) |
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817 |
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818 self.assertEqual(cbor.loads(encoded), source) |
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819 |
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820 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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821 |
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822 def testinvalidtag(self): |
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823 # Must use array to encode sets. |
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824 encoded = b'\xd9\x01\x02\xa0' |
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825 |
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826 with self.assertRaisesRegex( |
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827 cborutil.CBORDecodeError, |
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828 'expected array after finite set ' 'semantic tag', |
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829 ): |
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830 cborutil.decodeall(encoded) |
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831 |
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832 def testpartialdecode(self): |
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833 # Semantic tag item will be 3 bytes. Set header will be variable |
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834 # depending on length. |
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835 encoded = b''.join(cborutil.streamencode({i for i in range(23)})) |
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836 self.assertEqual( |
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837 cborutil.decodeitem(encoded[0:1]), |
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838 (False, None, -2, cborutil.SPECIAL_NONE), |
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839 ) |
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840 self.assertEqual( |
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841 cborutil.decodeitem(encoded[0:2]), |
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842 (False, None, -1, cborutil.SPECIAL_NONE), |
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843 ) |
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844 self.assertEqual( |
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845 cborutil.decodeitem(encoded[0:3]), |
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846 (False, None, -1, cborutil.SPECIAL_NONE), |
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|
847 ) |
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|
848 self.assertEqual( |
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|
849 cborutil.decodeitem(encoded[0:4]), |
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850 (True, 23, 4, cborutil.SPECIAL_START_SET), |
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|
851 ) |
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852 self.assertEqual( |
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853 cborutil.decodeitem(encoded[0:5]), |
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854 (True, 23, 4, cborutil.SPECIAL_START_SET), |
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|
855 ) |
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|
856 |
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|
857 encoded = b''.join(cborutil.streamencode({i for i in range(24)})) |
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858 self.assertEqual( |
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859 cborutil.decodeitem(encoded[0:1]), |
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860 (False, None, -2, cborutil.SPECIAL_NONE), |
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|
861 ) |
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862 self.assertEqual( |
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863 cborutil.decodeitem(encoded[0:2]), |
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|
864 (False, None, -1, cborutil.SPECIAL_NONE), |
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|
865 ) |
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|
866 self.assertEqual( |
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|
867 cborutil.decodeitem(encoded[0:3]), |
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|
868 (False, None, -1, cborutil.SPECIAL_NONE), |
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|
869 ) |
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|
870 self.assertEqual( |
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871 cborutil.decodeitem(encoded[0:4]), |
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|
872 (False, None, -1, cborutil.SPECIAL_NONE), |
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|
873 ) |
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|
874 self.assertEqual( |
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|
875 cborutil.decodeitem(encoded[0:5]), |
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|
876 (True, 24, 5, cborutil.SPECIAL_START_SET), |
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|
877 ) |
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|
878 self.assertEqual( |
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|
879 cborutil.decodeitem(encoded[0:6]), |
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|
880 (True, 24, 5, cborutil.SPECIAL_START_SET), |
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|
881 ) |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
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|
882 |
39411
aeb551a3bb8a
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|
883 encoded = b''.join(cborutil.streamencode({i for i in range(256)})) |
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884 self.assertEqual( |
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|
885 cborutil.decodeitem(encoded[0:1]), |
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|
886 (False, None, -2, cborutil.SPECIAL_NONE), |
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|
887 ) |
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|
888 self.assertEqual( |
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|
889 cborutil.decodeitem(encoded[0:2]), |
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|
890 (False, None, -1, cborutil.SPECIAL_NONE), |
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|
891 ) |
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|
892 self.assertEqual( |
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|
893 cborutil.decodeitem(encoded[0:3]), |
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|
894 (False, None, -1, cborutil.SPECIAL_NONE), |
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|
895 ) |
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|
896 self.assertEqual( |
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|
897 cborutil.decodeitem(encoded[0:4]), |
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|
898 (False, None, -2, cborutil.SPECIAL_NONE), |
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|
899 ) |
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|
900 self.assertEqual( |
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|
901 cborutil.decodeitem(encoded[0:5]), |
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|
902 (False, None, -1, cborutil.SPECIAL_NONE), |
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|
903 ) |
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|
904 self.assertEqual( |
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|
905 cborutil.decodeitem(encoded[0:6]), |
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|
906 (True, 256, 6, cborutil.SPECIAL_START_SET), |
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|
907 ) |
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Gregory Szorc <gregory.szorc@gmail.com>
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diff
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|
908 |
aeb551a3bb8a
cborutil: implement sans I/O decoder
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|
909 def testinvalidvalue(self): |
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910 encoded = b''.join( |
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|
911 [ |
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|
912 b'\xd9\x01\x02', # semantic tag |
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|
913 b'\x81', # array of size 1 |
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|
914 b'\x5f\x43foo\xff', # indefinite length bytestring "foo" |
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|
915 ] |
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|
916 ) |
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|
917 |
43076
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changeset
|
918 with self.assertRaisesRegex( |
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|
919 cborutil.CBORDecodeError, |
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|
920 'indefinite length bytestrings not ' 'allowed as set values', |
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|
921 ): |
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|
922 cborutil.decodeall(encoded) |
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|
923 |
45942
89a2afe31e82
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|
924 encoded = b''.join( |
89a2afe31e82
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diff
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|
925 [ |
89a2afe31e82
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diff
changeset
|
926 b'\xd9\x01\x02', |
89a2afe31e82
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Augie Fackler <raf@durin42.com>
parents:
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diff
changeset
|
927 b'\x81', |
89a2afe31e82
formating: upgrade to black 20.8b1
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parents:
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diff
changeset
|
928 b'\x80', |
89a2afe31e82
formating: upgrade to black 20.8b1
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parents:
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diff
changeset
|
929 ] |
89a2afe31e82
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diff
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|
930 ) # empty array |
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|
931 |
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|
932 with self.assertRaisesRegex( |
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changeset
|
933 cborutil.CBORDecodeError, 'collections not allowed as set values' |
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|
934 ): |
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Gregory Szorc <gregory.szorc@gmail.com>
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diff
changeset
|
935 cborutil.decodeall(encoded) |
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|
936 |
45942
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|
937 encoded = b''.join( |
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changeset
|
938 [ |
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changeset
|
939 b'\xd9\x01\x02', |
89a2afe31e82
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diff
changeset
|
940 b'\x81', |
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changeset
|
941 b'\xa0', |
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diff
changeset
|
942 ] |
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diff
changeset
|
943 ) # empty map |
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|
944 |
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|
945 with self.assertRaisesRegex( |
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changeset
|
946 cborutil.CBORDecodeError, 'collections not allowed as set values' |
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|
947 ): |
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parents:
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diff
changeset
|
948 cborutil.decodeall(encoded) |
aeb551a3bb8a
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|
949 |
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|
950 encoded = b''.join( |
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changeset
|
951 [ |
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|
952 b'\xd9\x01\x02', |
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|
953 b'\x81', |
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|
954 b'\xd9\x01\x02\x81\x01', # set with integer 1 |
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|
955 ] |
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|
956 ) |
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|
957 |
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|
958 with self.assertRaisesRegex( |
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|
959 cborutil.CBORDecodeError, 'collections not allowed as set values' |
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|
960 ): |
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diff
changeset
|
961 cborutil.decodeall(encoded) |
aeb551a3bb8a
cborutil: implement sans I/O decoder
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diff
changeset
|
962 |
aeb551a3bb8a
cborutil: implement sans I/O decoder
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parents:
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diff
changeset
|
963 |
aeb551a3bb8a
cborutil: implement sans I/O decoder
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
964 class BoolTests(TestCase): |
37711
65a23cc8e75b
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|
965 def testbasic(self): |
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|
966 self.assertEqual(list(cborutil.streamencode(True)), [b'\xf5']) |
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Gregory Szorc <gregory.szorc@gmail.com>
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diff
changeset
|
967 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
|
968 |
65a23cc8e75b
cborutil: implement support for streaming encoding, bytestring decoding
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
969 self.assertIs(loadit(cborutil.streamencode(True)), True) |
65a23cc8e75b
cborutil: implement support for streaming encoding, bytestring decoding
Gregory Szorc <gregory.szorc@gmail.com>
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970 self.assertIs(loadit(cborutil.streamencode(False)), False) |
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971 |
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972 self.assertEqual(cborutil.decodeall(b'\xf4'), [False]) |
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973 self.assertEqual(cborutil.decodeall(b'\xf5'), [True]) |
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974 |
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975 self.assertEqual( |
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976 cborutil.decodeall(b'\xf4\xf5\xf5\xf4'), [False, True, True, False] |
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977 ) |
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978 |
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979 |
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980 class NoneTests(TestCase): |
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981 def testbasic(self): |
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982 self.assertEqual(list(cborutil.streamencode(None)), [b'\xf6']) |
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983 |
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984 self.assertIs(loadit(cborutil.streamencode(None)), None) |
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985 |
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986 self.assertEqual(cborutil.decodeall(b'\xf6'), [None]) |
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987 self.assertEqual(cborutil.decodeall(b'\xf6\xf6'), [None, None]) |
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988 |
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989 |
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990 class MapTests(TestCase): |
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991 def testempty(self): |
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992 self.assertEqual(list(cborutil.streamencode({})), [b'\xa0']) |
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993 self.assertEqual(loadit(cborutil.streamencode({})), {}) |
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994 |
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995 self.assertEqual(cborutil.decodeall(b'\xa0'), [{}]) |
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996 |
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997 def testemptyindefinite(self): |
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998 self.assertEqual( |
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999 list(cborutil.streamencodemapfromiter([])), [b'\xbf', b'\xff'] |
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1000 ) |
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1001 |
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1002 self.assertEqual(loadit(cborutil.streamencodemapfromiter([])), {}) |
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1003 |
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1004 with self.assertRaisesRegex( |
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1005 cborutil.CBORDecodeError, 'indefinite length uint not allowed' |
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1006 ): |
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1007 cborutil.decodeall(b'\xbf\xff') |
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1008 |
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1009 def testone(self): |
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1010 source = {b'foo': b'bar'} |
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1011 self.assertEqual( |
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1012 list(cborutil.streamencode(source)), |
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1013 [b'\xa1', b'\x43', b'foo', b'\x43', b'bar'], |
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1014 ) |
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1015 |
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1016 self.assertEqual(loadit(cborutil.streamencode(source)), source) |
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1017 |
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1018 self.assertEqual(cborutil.decodeall(b'\xa1\x43foo\x43bar'), [source]) |
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1019 |
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1020 def testmultiple(self): |
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1021 source = { |
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1022 b'foo': b'bar', |
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1023 b'baz': b'value1', |
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1024 } |
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1025 |
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1026 self.assertEqual(loadit(cborutil.streamencode(source)), source) |
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1027 |
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1028 self.assertEqual( |
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1029 loadit(cborutil.streamencodemapfromiter(source.items())), source |
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1030 ) |
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1031 |
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1032 encoded = b''.join(cborutil.streamencode(source)) |
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1033 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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1034 |
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1035 def testcomplex(self): |
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1036 source = { |
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1037 b'key': 1, |
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1038 2: -10, |
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1039 } |
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1040 |
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1041 self.assertEqual(loadit(cborutil.streamencode(source)), source) |
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1042 |
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1043 self.assertEqual( |
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1044 loadit(cborutil.streamencodemapfromiter(source.items())), source |
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1045 ) |
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1046 |
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1047 encoded = b''.join(cborutil.streamencode(source)) |
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1048 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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1049 |
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1050 def testnested(self): |
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1051 source = {b'key1': None, b'key2': {b'sub1': b'sub2'}, b'sub2': {}} |
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1052 encoded = b''.join(cborutil.streamencode(source)) |
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1053 |
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1054 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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1055 |
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1056 source = { |
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1057 b'key1': [], |
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1058 b'key2': [None, False], |
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1059 b'key3': {b'foo', b'bar'}, |
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1060 b'key4': {}, |
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1061 } |
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1062 encoded = b''.join(cborutil.streamencode(source)) |
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1063 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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1064 |
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1065 def testillegalkey(self): |
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1066 encoded = b''.join( |
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1067 [ |
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1068 # map header + len 1 |
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1069 b'\xa1', |
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1070 # indefinite length bytestring "foo" in key position |
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1071 b'\x5f\x03foo\xff', |
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1072 ] |
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1073 ) |
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1074 |
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1075 with self.assertRaisesRegex( |
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1076 cborutil.CBORDecodeError, |
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1077 'indefinite length bytestrings not ' 'allowed as map keys', |
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1078 ): |
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1079 cborutil.decodeall(encoded) |
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1080 |
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1081 encoded = b''.join( |
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1082 [ |
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1083 b'\xa1', |
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1084 b'\x80', |
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1085 b'\x43foo', |
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1086 ] |
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1087 ) # empty array |
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1088 |
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1089 with self.assertRaisesRegex( |
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1090 cborutil.CBORDecodeError, 'collections not supported as map keys' |
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1091 ): |
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1092 cborutil.decodeall(encoded) |
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1093 |
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1094 def testillegalvalue(self): |
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1095 encoded = b''.join( |
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1096 [ |
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1097 b'\xa1', # map headers |
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1098 b'\x43foo', # key |
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1099 b'\x5f\x03bar\xff', # indefinite length value |
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1100 ] |
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1101 ) |
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1102 |
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1103 with self.assertRaisesRegex( |
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1104 cborutil.CBORDecodeError, |
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1105 'indefinite length bytestrings not ' 'allowed as map values', |
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1106 ): |
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1107 cborutil.decodeall(encoded) |
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1108 |
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1109 def testpartialdecode(self): |
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1110 source = {b'key1': b'value1'} |
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1111 encoded = b''.join(cborutil.streamencode(source)) |
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1112 |
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1113 self.assertEqual( |
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1114 cborutil.decodeitem(encoded[0:1]), |
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1115 (True, 1, 1, cborutil.SPECIAL_START_MAP), |
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1116 ) |
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1117 self.assertEqual( |
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1118 cborutil.decodeitem(encoded[0:2]), |
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1119 (True, 1, 1, cborutil.SPECIAL_START_MAP), |
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1120 ) |
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1121 |
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1122 source = {b'key%d' % i: None for i in range(23)} |
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1123 encoded = b''.join(cborutil.streamencode(source)) |
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1124 self.assertEqual( |
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1125 cborutil.decodeitem(encoded[0:1]), |
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1126 (True, 23, 1, cborutil.SPECIAL_START_MAP), |
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1127 ) |
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1128 |
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1129 source = {b'key%d' % i: None for i in range(24)} |
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1130 encoded = b''.join(cborutil.streamencode(source)) |
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1131 self.assertEqual( |
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1132 cborutil.decodeitem(encoded[0:1]), |
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1133 (False, None, -1, cborutil.SPECIAL_NONE), |
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1134 ) |
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1135 self.assertEqual( |
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1136 cborutil.decodeitem(encoded[0:2]), |
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1137 (True, 24, 2, cborutil.SPECIAL_START_MAP), |
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1138 ) |
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1139 self.assertEqual( |
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1140 cborutil.decodeitem(encoded[0:3]), |
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1141 (True, 24, 2, cborutil.SPECIAL_START_MAP), |
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1142 ) |
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1143 |
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1144 source = {b'key%d' % i: None for i in range(256)} |
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1145 encoded = b''.join(cborutil.streamencode(source)) |
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1146 self.assertEqual( |
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1147 cborutil.decodeitem(encoded[0:1]), |
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1148 (False, None, -2, cborutil.SPECIAL_NONE), |
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1149 ) |
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1150 self.assertEqual( |
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1151 cborutil.decodeitem(encoded[0:2]), |
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1152 (False, None, -1, cborutil.SPECIAL_NONE), |
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1153 ) |
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1154 self.assertEqual( |
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1155 cborutil.decodeitem(encoded[0:3]), |
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1156 (True, 256, 3, cborutil.SPECIAL_START_MAP), |
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1157 ) |
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1158 self.assertEqual( |
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1159 cborutil.decodeitem(encoded[0:4]), |
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1160 (True, 256, 3, cborutil.SPECIAL_START_MAP), |
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1161 ) |
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1162 |
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1163 source = {b'key%d' % i: None for i in range(65536)} |
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1164 encoded = b''.join(cborutil.streamencode(source)) |
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1165 self.assertEqual( |
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1166 cborutil.decodeitem(encoded[0:1]), |
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1167 (False, None, -4, cborutil.SPECIAL_NONE), |
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1168 ) |
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1169 self.assertEqual( |
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1170 cborutil.decodeitem(encoded[0:2]), |
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1171 (False, None, -3, cborutil.SPECIAL_NONE), |
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1172 ) |
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1173 self.assertEqual( |
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1174 cborutil.decodeitem(encoded[0:3]), |
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1175 (False, None, -2, cborutil.SPECIAL_NONE), |
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1176 ) |
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1177 self.assertEqual( |
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1178 cborutil.decodeitem(encoded[0:4]), |
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1179 (False, None, -1, cborutil.SPECIAL_NONE), |
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1180 ) |
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1181 self.assertEqual( |
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1182 cborutil.decodeitem(encoded[0:5]), |
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1183 (True, 65536, 5, cborutil.SPECIAL_START_MAP), |
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1184 ) |
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1185 self.assertEqual( |
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1186 cborutil.decodeitem(encoded[0:6]), |
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1187 (True, 65536, 5, cborutil.SPECIAL_START_MAP), |
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1188 ) |
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1189 |
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1190 |
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1191 class SemanticTagTests(TestCase): |
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1192 def testdecodeforbidden(self): |
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1193 for i in range(500): |
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1194 if i == cborutil.SEMANTIC_TAG_FINITE_SET: |
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1195 continue |
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1196 |
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1197 tag = cborutil.encodelength(cborutil.MAJOR_TYPE_SEMANTIC, i) |
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1198 |
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1199 encoded = tag + cborutil.encodelength(cborutil.MAJOR_TYPE_UINT, 42) |
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1200 |
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1201 # Partial decode is incomplete. |
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1202 if i < 24: |
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1203 pass |
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1204 elif i < 256: |
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1205 self.assertEqual( |
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1206 cborutil.decodeitem(encoded[0:1]), |
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1207 (False, None, -1, cborutil.SPECIAL_NONE), |
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1208 ) |
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1209 elif i < 65536: |
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1210 self.assertEqual( |
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1211 cborutil.decodeitem(encoded[0:1]), |
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1212 (False, None, -2, cborutil.SPECIAL_NONE), |
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1213 ) |
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1214 self.assertEqual( |
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1215 cborutil.decodeitem(encoded[0:2]), |
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1216 (False, None, -1, cborutil.SPECIAL_NONE), |
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1217 ) |
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1218 |
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1219 with self.assertRaisesRegex( |
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1220 cborutil.CBORDecodeError, r'semantic tag \d+ not allowed' |
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1221 ): |
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1222 cborutil.decodeitem(encoded) |
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1223 |
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1224 |
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1225 class SpecialTypesTests(TestCase): |
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1226 def testforbiddentypes(self): |
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1227 for i in range(256): |
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1228 if i == cborutil.SUBTYPE_FALSE: |
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1229 continue |
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1230 elif i == cborutil.SUBTYPE_TRUE: |
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1231 continue |
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1232 elif i == cborutil.SUBTYPE_NULL: |
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1233 continue |
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1234 |
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1235 encoded = cborutil.encodelength(cborutil.MAJOR_TYPE_SPECIAL, i) |
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1236 |
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1237 with self.assertRaisesRegex( |
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1238 cborutil.CBORDecodeError, r'special type \d+ not allowed' |
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1239 ): |
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1240 cborutil.decodeitem(encoded) |
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1241 |
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1242 |
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1243 class SansIODecoderTests(TestCase): |
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1244 def testemptyinput(self): |
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1245 decoder = cborutil.sansiodecoder() |
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1246 self.assertEqual(decoder.decode(b''), (False, 0, 0)) |
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1247 |
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1248 |
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1249 class BufferingDecoderTests(TestCase): |
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1250 def testsimple(self): |
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1251 source = [ |
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1252 b'foobar', |
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1253 b'x' * 128, |
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1254 {b'foo': b'bar'}, |
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1255 True, |
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1256 False, |
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1257 None, |
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1258 [None] * 128, |
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1259 ] |
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1260 |
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1261 encoded = b''.join(cborutil.streamencode(source)) |
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1262 |
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1263 for step in range(1, 32): |
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1264 decoder = cborutil.bufferingdecoder() |
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1265 start = 0 |
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1266 |
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1267 while start < len(encoded): |
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1268 decoder.decode(encoded[start : start + step]) |
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1269 start += step |
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1270 |
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1271 self.assertEqual(decoder.getavailable(), [source]) |
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1272 |
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1273 def testbytearray(self): |
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1274 source = b''.join(cborutil.streamencode(b'foobar')) |
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1275 |
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1276 decoder = cborutil.bufferingdecoder() |
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1277 decoder.decode(bytearray(source)) |
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1278 |
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1279 self.assertEqual(decoder.getavailable(), [b'foobar']) |
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1280 |
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1281 |
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1282 class DecodeallTests(TestCase): |
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1283 def testemptyinput(self): |
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1284 self.assertEqual(cborutil.decodeall(b''), []) |
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1285 |
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1286 def testpartialinput(self): |
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1287 encoded = b''.join( |
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1288 [ |
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1289 b'\x82', |
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1290 b'\x01', |
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1291 ] # array of 2 elements # integer 1 |
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1292 ) |
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1293 |
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1294 with self.assertRaisesRegex( |
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1295 cborutil.CBORDecodeError, 'input data not complete' |
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1296 ): |
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1297 cborutil.decodeall(encoded) |
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1298 |
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1299 |
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1300 if __name__ == '__main__': |
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1301 import silenttestrunner |
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1302 |
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1303 silenttestrunner.main(__name__) |