annotate tests/test-parseindex2.py @ 47914:8e46934c58d2

dirstate: drop the deprecated `merge` method The method was deprecated in 5.9. Differential Revision: https://phab.mercurial-scm.org/D11349
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Tue, 24 Aug 2021 21:11:57 +0200
parents 2b69555e4875
children 52034c42c09d
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1 """This unit test primarily tests parsers.parse_index2().
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2
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3 It also checks certain aspects of the parsers module as a whole.
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4 """
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5
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6 from __future__ import absolute_import, print_function
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7
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8 import os
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9 import struct
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10 import subprocess
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11 import sys
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12 import unittest
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13
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14 from mercurial.node import (
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15 bin,
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16 hex,
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17 nullrev,
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18 sha1nodeconstants,
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19 )
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20 from mercurial import (
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21 policy,
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22 pycompat,
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23 )
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24 from mercurial.revlogutils import (
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25 constants,
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26 )
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27
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28 parsers = policy.importmod('parsers')
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29
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30 # original python implementation
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31 def gettype(q):
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32 return int(q & 0xFFFF)
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33
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35 def offset_type(offset, type):
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36 return int(int(offset) << 16 | type)
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38
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39 indexformatng = ">Qiiiiii20s12x"
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41
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42 def py_parseindex(data, inline):
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43 s = 64
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44 cache = None
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45 index = []
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46 nodemap = {sha1nodeconstants.nullid: nullrev}
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47 n = off = 0
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48
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49 l = len(data) - s
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50 append = index.append
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51 if inline:
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52 cache = (0, data)
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53 while off <= l:
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54 e = struct.unpack(indexformatng, data[off : off + s])
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55 e = e + (
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56 0,
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57 0,
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58 constants.COMP_MODE_INLINE,
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59 constants.COMP_MODE_INLINE,
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60 )
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61 nodemap[e[7]] = n
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62 append(e)
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63 n += 1
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64 if e[1] < 0:
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65 break
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66 off += e[1] + s
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67 else:
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68 while off <= l:
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69 e = struct.unpack(indexformatng, data[off : off + s])
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70 e = e + (
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71 0,
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72 0,
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73 constants.COMP_MODE_INLINE,
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74 constants.COMP_MODE_INLINE,
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75 )
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76 nodemap[e[7]] = n
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77 append(e)
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78 n += 1
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79 off += s
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80
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81 e = list(index[0])
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82 type = gettype(e[0])
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83 e[0] = offset_type(0, type)
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84 index[0] = tuple(e)
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85
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86 return index, cache
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87
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88
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89 data_inlined = (
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90 b'\x00\x01\x00\x01\x00\x00\x00\x00\x00\x00\x01\x8c'
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91 b'\x00\x00\x04\x07\x00\x00\x00\x00\x00\x00\x15\x15\xff\xff\xff'
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92 b'\xff\xff\xff\xff\xff\xebG\x97\xb7\x1fB\x04\xcf\x13V\x81\tw\x1b'
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93 b'w\xdduR\xda\xc6\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
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94 b'x\x9c\x9d\x93?O\xc30\x10\xc5\xf7|\x8a\xdb\x9a\xa8m\x06\xd8*\x95'
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95 b'\x81B\xa1\xa2\xa2R\xcb\x86Pd\x9a\x0b5$vd_\x04\xfd\xf6\x9c\xff@'
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96 b'\x11!\x0b\xd9\xec\xf7\xbbw\xe7gG6\xad6\x04\xdaN\xc0\x92\xa0$)'
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97 b'\xb1\x82\xa2\xd1%\x16\xa4\x8b7\xa9\xca\xd4-\xb2Y\x02\xfc\xc9'
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98 b'\xcaS\xf9\xaeX\xed\xb6\xd77Q\x02\x83\xd4\x19\xf5--Y\xea\xe1W'
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99 b'\xab\xed\x10\xceR\x0f_\xdf\xdf\r\xe1,\xf5\xf0\xcb\xf5 \xceR\x0f'
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100 b'_\xdc\x0e\x0e\xc3R\x0f_\xae\x96\x9b!\x9e\xa5\x1e\xbf\xdb,\x06'
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101 b'\xc7q\x9a/\x88\x82\xc3B\xea\xb5\xb4TJ\x93\xb6\x82\x0e\xe16\xe6'
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102 b'KQ\xdb\xaf\xecG\xa3\xd1 \x01\xd3\x0b_^\xe8\xaa\xa0\xae\xad\xd1'
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103 b'&\xbef\x1bz\x08\xb0|\xc9Xz\x06\xf6Z\x91\x90J\xaa\x17\x90\xaa'
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104 b'\xd2\xa6\x11$5C\xcf\xba#\xa0\x03\x02*2\x92-\xfc\xb1\x94\xdf\xe2'
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105 b'\xae\xb8\'m\x8ey0^\x85\xd3\x82\xb4\xf0`:\x9c\x00\x8a\xfd\x01'
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106 b'\xb0\xc6\x86\x8b\xdd\xae\x80\xf3\xa9\x9fd\x16\n\x00R%\x1a\x06'
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107 b'\xe9\xd8b\x98\x1d\xf4\xf3+\x9bf\x01\xd8p\x1b\xf3.\xed\x9f^g\xc3'
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108 b'^\xd9W81T\xdb\xd5\x04sx|\xf2\xeb\xd6`%?x\xed"\x831\xbf\xf3\xdc'
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109 b'b\xeb%gaY\xe1\xad\x9f\xb9f\'1w\xa9\xa5a\x83s\x82J\xb98\xbc4\x8b'
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110 b'\x83\x00\x9f$z\xb8#\xa5\xb1\xdf\x98\xd9\xec\x1b\x89O\xe3Ts\x9a4'
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111 b'\x17m\x8b\xfc\x8f\xa5\x95\x9a\xfc\xfa\xed,\xe5|\xa1\xfe\x15\xb9'
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112 b'\xbc\xb2\x93\x1f\xf2\x95\xff\xdf,\x1a\xc5\xe7\x17*\x93Oz:>\x0e'
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113 )
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114
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115 data_non_inlined = (
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116 b'\x00\x00\x00\x01\x00\x00\x00\x00\x00\x01D\x19'
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117 b'\x00\x07e\x12\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff'
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118 b'\xff\xff\xff\xff\xd1\xf4\xbb\xb0\xbe\xfc\x13\xbd\x8c\xd3\x9d'
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119 b'\x0f\xcd\xd9;\x8c\x07\x8cJ/\x00\x00\x00\x00\x00\x00\x00\x00\x00'
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120 b'\x00\x00\x00\x00\x00\x00\x01D\x19\x00\x00\x00\x00\x00\xdf\x00'
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121 b'\x00\x01q\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\xff'
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122 b'\xff\xff\xff\xc1\x12\xb9\x04\x96\xa4Z1t\x91\xdfsJ\x90\xf0\x9bh'
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123 b'\x07l&\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
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124 b'\x00\x01D\xf8\x00\x00\x00\x00\x01\x1b\x00\x00\x01\xb8\x00\x00'
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125 b'\x00\x01\x00\x00\x00\x02\x00\x00\x00\x01\xff\xff\xff\xff\x02\n'
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126 b'\x0e\xc6&\xa1\x92\xae6\x0b\x02i\xfe-\xe5\xbao\x05\xd1\xe7\x00'
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127 b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01F'
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128 b'\x13\x00\x00\x00\x00\x01\xec\x00\x00\x03\x06\x00\x00\x00\x01'
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129 b'\x00\x00\x00\x03\x00\x00\x00\x02\xff\xff\xff\xff\x12\xcb\xeby1'
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130 b'\xb6\r\x98B\xcb\x07\xbd`\x8f\x92\xd9\xc4\x84\xbdK\x00\x00\x00'
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131 b'\x00\x00\x00\x00\x00\x00\x00\x00\x00'
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132 )
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133
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134
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135 def parse_index2(data, inline, revlogv2=False):
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136 index, chunkcache = parsers.parse_index2(data, inline, revlogv2=revlogv2)
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137 return list(index), chunkcache
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138
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139
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140 def importparsers(hexversion):
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141 """Import mercurial.parsers with the given sys.hexversion."""
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142 # The file parsers.c inspects sys.hexversion to determine the version
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143 # of the currently-running Python interpreter, so we monkey-patch
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144 # sys.hexversion to simulate using different versions.
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145 code = (
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146 "import sys; sys.hexversion=%s; "
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147 "import mercurial.cext.parsers" % hexversion
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148 )
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149 cmd = "\"%s\" -c \"%s\"" % (os.environ['PYTHON'], code)
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150 # We need to do these tests inside a subprocess because parser.c's
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151 # version-checking code happens inside the module init function, and
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152 # when using reload() to reimport an extension module, "The init function
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153 # of extension modules is not called a second time"
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154 # (from http://docs.python.org/2/library/functions.html?#reload).
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155 p = subprocess.Popen(
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156 cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT
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157 )
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158 return p.communicate() # returns stdout, stderr
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159
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160
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161 def hexfailmsg(testnumber, hexversion, stdout, expected):
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162 try:
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163 hexstring = hex(hexversion)
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164 except TypeError:
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165 hexstring = None
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166 return (
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167 "FAILED: version test #%s with Python %s and patched "
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168 "sys.hexversion %r (%r):\n Expected %s but got:\n-->'%s'\n"
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169 % (
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170 testnumber,
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171 sys.version_info,
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172 hexversion,
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173 hexstring,
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174 expected,
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175 stdout,
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176 )
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177 )
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178
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179
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180 def makehex(major, minor, micro):
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181 return int("%x%02x%02x00" % (major, minor, micro), 16)
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182
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183
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184 class parseindex2tests(unittest.TestCase):
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185 def assertversionokay(self, testnumber, hexversion):
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186 stdout, stderr = importparsers(hexversion)
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187 self.assertFalse(
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188 stdout, hexfailmsg(testnumber, hexversion, stdout, 'no stdout')
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189 )
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190
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191 def assertversionfail(self, testnumber, hexversion):
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192 stdout, stderr = importparsers(hexversion)
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193 # We include versionerrortext to distinguish from other ImportErrors.
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194 errtext = b"ImportError: %s" % pycompat.sysbytes(
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195 parsers.versionerrortext
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196 )
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197 self.assertIn(
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198 errtext,
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199 stdout,
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200 hexfailmsg(
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201 testnumber,
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202 hexversion,
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203 stdout,
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204 expected="stdout to contain %r" % errtext,
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205 ),
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206 )
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207
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208 def testversiondetection(self):
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209 """Check the version-detection logic when importing parsers."""
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210 # Only test the version-detection logic if it is present.
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211 try:
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212 parsers.versionerrortext
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213 except AttributeError:
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214 return
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215 info = sys.version_info
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216 major, minor, micro = info[0], info[1], info[2]
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217 # Test same major-minor versions.
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218 self.assertversionokay(1, makehex(major, minor, micro))
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219 self.assertversionokay(2, makehex(major, minor, micro + 1))
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220 # Test different major-minor versions.
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221 self.assertversionfail(3, makehex(major + 1, minor, micro))
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222 self.assertversionfail(4, makehex(major, minor + 1, micro))
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223 self.assertversionfail(5, "'foo'")
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224
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225 def testbadargs(self):
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226 # Check that parse_index2() raises TypeError on bad arguments.
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227 with self.assertRaises(TypeError):
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228 parse_index2(0, True)
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229
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230 def testparseindexfile(self):
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231 # Check parsers.parse_index2() on an index file against the
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232 # original Python implementation of parseindex, both with and
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233 # without inlined data.
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234
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235 want = py_parseindex(data_inlined, True)
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236 got = parse_index2(data_inlined, True)
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237 self.assertEqual(want, got) # inline data
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238
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239 want = py_parseindex(data_non_inlined, False)
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240 got = parse_index2(data_non_inlined, False)
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241 self.assertEqual(want, got) # no inline data
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242
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243 ix = parsers.parse_index2(data_inlined, True)[0]
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244 for i, r in enumerate(ix):
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245 if r[7] == sha1nodeconstants.nullid:
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246 i = -1
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247 try:
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248 self.assertEqual(
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249 ix[r[7]],
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250 i,
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251 'Reverse lookup inconsistent for %r' % hex(r[7]),
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252 )
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253 except TypeError:
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254 # pure version doesn't support this
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255 break
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256
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257 def testminusone(self):
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258 want = (
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259 0,
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260 0,
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261 0,
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262 -1,
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263 -1,
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264 -1,
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265 -1,
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266 sha1nodeconstants.nullid,
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267 0,
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268 0,
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269 constants.COMP_MODE_INLINE,
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270 constants.COMP_MODE_INLINE,
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271 )
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272 index, junk = parsers.parse_index2(data_inlined, True)
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273 got = index[-1]
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274 self.assertEqual(want, got) # inline data
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275
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276 index, junk = parsers.parse_index2(data_non_inlined, False)
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277 got = index[-1]
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278 self.assertEqual(want, got) # no inline data
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279
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280 def testdelitemwithoutnodetree(self):
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281 index, _junk = parsers.parse_index2(data_non_inlined, False)
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282
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283 def hexrev(rev):
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284 if rev == nullrev:
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285 return b'\xff\xff\xff\xff'
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286 else:
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287 return bin('%08x' % rev)
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288
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289 def appendrev(p1, p2=nullrev):
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290 # node won't matter for this test, let's just make sure
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291 # they don't collide. Other data don't matter either.
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292 node = hexrev(p1) + hexrev(p2) + b'.' * 12
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293 e = (
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294 0,
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295 0,
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296 12,
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297 1,
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298 34,
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299 p1,
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300 p2,
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301 node,
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302 0,
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303 0,
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304 constants.COMP_MODE_INLINE,
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305 constants.COMP_MODE_INLINE,
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306 )
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307 index.append(e)
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308
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309 appendrev(4)
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310 appendrev(5)
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311 appendrev(6)
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312 self.assertEqual(len(index), 7)
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313
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314 del index[1:-1]
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315
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316 # assertions that failed before correction
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317 self.assertEqual(len(index), 1) # was 4
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318 headrevs = getattr(index, 'headrevs', None)
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319 if headrevs is not None: # not implemented in pure
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320 self.assertEqual(index.headrevs(), [0]) # gave ValueError
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diff changeset
321
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322
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323 if __name__ == '__main__':
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324 import silenttestrunner
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325
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326 silenttestrunner.main(__name__)