Mercurial > hg
annotate tests/test-parseindex2.py @ 45659:a475db79d84d
changing-files: add a "salvaged" set to track file that were not removed
We need this set for the copy tracing algorithm. See documentation for details
about this set.
Differential Revision: https://phab.mercurial-scm.org/D9118
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Mon, 14 Sep 2020 23:46:21 +0200 |
parents | ac627ed8a911 |
children | e7a4c018b563 |
rev | line source |
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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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6 from __future__ import absolute_import, print_function |
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7 |
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8 import struct |
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9 import subprocess |
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10 import sys |
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11 import unittest |
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12 |
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13 from mercurial.node import ( |
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14 nullid, |
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15 nullrev, |
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16 ) |
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17 from mercurial import ( |
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18 node as nodemod, |
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19 policy, |
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20 pycompat, |
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21 ) |
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22 |
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23 parsers = policy.importmod('parsers') |
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24 |
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25 # original python implementation |
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26 def gettype(q): |
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27 return int(q & 0xFFFF) |
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28 |
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29 |
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30 def offset_type(offset, type): |
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31 return int(int(offset) << 16 | type) |
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32 |
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33 |
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34 indexformatng = ">Qiiiiii20s12x" |
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36 |
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37 def py_parseindex(data, inline): |
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38 s = 64 |
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39 cache = None |
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40 index = [] |
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41 nodemap = {nullid: nullrev} |
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42 n = off = 0 |
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44 l = len(data) - s |
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45 append = index.append |
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46 if inline: |
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47 cache = (0, data) |
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48 while off <= l: |
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49 e = struct.unpack(indexformatng, data[off : off + s]) |
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50 nodemap[e[7]] = n |
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51 append(e) |
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52 n += 1 |
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53 if e[1] < 0: |
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54 break |
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55 off += e[1] + s |
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56 else: |
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57 while off <= l: |
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58 e = struct.unpack(indexformatng, data[off : off + s]) |
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59 nodemap[e[7]] = n |
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60 append(e) |
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61 n += 1 |
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62 off += s |
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63 |
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64 e = list(index[0]) |
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65 type = gettype(e[0]) |
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66 e[0] = offset_type(0, type) |
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67 index[0] = tuple(e) |
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68 |
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69 return index, cache |
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70 |
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71 |
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72 data_inlined = ( |
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73 b'\x00\x01\x00\x01\x00\x00\x00\x00\x00\x00\x01\x8c' |
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74 b'\x00\x00\x04\x07\x00\x00\x00\x00\x00\x00\x15\x15\xff\xff\xff' |
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75 b'\xff\xff\xff\xff\xff\xebG\x97\xb7\x1fB\x04\xcf\x13V\x81\tw\x1b' |
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76 b'w\xdduR\xda\xc6\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' |
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77 b'x\x9c\x9d\x93?O\xc30\x10\xc5\xf7|\x8a\xdb\x9a\xa8m\x06\xd8*\x95' |
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78 b'\x81B\xa1\xa2\xa2R\xcb\x86Pd\x9a\x0b5$vd_\x04\xfd\xf6\x9c\xff@' |
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79 b'\x11!\x0b\xd9\xec\xf7\xbbw\xe7gG6\xad6\x04\xdaN\xc0\x92\xa0$)' |
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80 b'\xb1\x82\xa2\xd1%\x16\xa4\x8b7\xa9\xca\xd4-\xb2Y\x02\xfc\xc9' |
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81 b'\xcaS\xf9\xaeX\xed\xb6\xd77Q\x02\x83\xd4\x19\xf5--Y\xea\xe1W' |
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82 b'\xab\xed\x10\xceR\x0f_\xdf\xdf\r\xe1,\xf5\xf0\xcb\xf5 \xceR\x0f' |
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83 b'_\xdc\x0e\x0e\xc3R\x0f_\xae\x96\x9b!\x9e\xa5\x1e\xbf\xdb,\x06' |
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84 b'\xc7q\x9a/\x88\x82\xc3B\xea\xb5\xb4TJ\x93\xb6\x82\x0e\xe16\xe6' |
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85 b'KQ\xdb\xaf\xecG\xa3\xd1 \x01\xd3\x0b_^\xe8\xaa\xa0\xae\xad\xd1' |
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86 b'&\xbef\x1bz\x08\xb0|\xc9Xz\x06\xf6Z\x91\x90J\xaa\x17\x90\xaa' |
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87 b'\xd2\xa6\x11$5C\xcf\xba#\xa0\x03\x02*2\x92-\xfc\xb1\x94\xdf\xe2' |
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88 b'\xae\xb8\'m\x8ey0^\x85\xd3\x82\xb4\xf0`:\x9c\x00\x8a\xfd\x01' |
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89 b'\xb0\xc6\x86\x8b\xdd\xae\x80\xf3\xa9\x9fd\x16\n\x00R%\x1a\x06' |
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90 b'\xe9\xd8b\x98\x1d\xf4\xf3+\x9bf\x01\xd8p\x1b\xf3.\xed\x9f^g\xc3' |
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91 b'^\xd9W81T\xdb\xd5\x04sx|\xf2\xeb\xd6`%?x\xed"\x831\xbf\xf3\xdc' |
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92 b'b\xeb%gaY\xe1\xad\x9f\xb9f\'1w\xa9\xa5a\x83s\x82J\xb98\xbc4\x8b' |
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93 b'\x83\x00\x9f$z\xb8#\xa5\xb1\xdf\x98\xd9\xec\x1b\x89O\xe3Ts\x9a4' |
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94 b'\x17m\x8b\xfc\x8f\xa5\x95\x9a\xfc\xfa\xed,\xe5|\xa1\xfe\x15\xb9' |
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95 b'\xbc\xb2\x93\x1f\xf2\x95\xff\xdf,\x1a\xc5\xe7\x17*\x93Oz:>\x0e' |
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96 ) |
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97 |
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98 data_non_inlined = ( |
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102 b'\x0f\xcd\xd9;\x8c\x07\x8cJ/\x00\x00\x00\x00\x00\x00\x00\x00\x00' |
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103 b'\x00\x00\x00\x00\x00\x00\x01D\x19\x00\x00\x00\x00\x00\xdf\x00' |
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104 b'\x00\x01q\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\xff' |
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105 b'\xff\xff\xff\xc1\x12\xb9\x04\x96\xa4Z1t\x91\xdfsJ\x90\xf0\x9bh' |
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106 b'\x07l&\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' |
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107 b'\x00\x01D\xf8\x00\x00\x00\x00\x01\x1b\x00\x00\x01\xb8\x00\x00' |
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108 b'\x00\x01\x00\x00\x00\x02\x00\x00\x00\x01\xff\xff\xff\xff\x02\n' |
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109 b'\x0e\xc6&\xa1\x92\xae6\x0b\x02i\xfe-\xe5\xbao\x05\xd1\xe7\x00' |
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110 b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01F' |
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111 b'\x13\x00\x00\x00\x00\x01\xec\x00\x00\x03\x06\x00\x00\x00\x01' |
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112 b'\x00\x00\x00\x03\x00\x00\x00\x02\xff\xff\xff\xff\x12\xcb\xeby1' |
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113 b'\xb6\r\x98B\xcb\x07\xbd`\x8f\x92\xd9\xc4\x84\xbdK\x00\x00\x00' |
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114 b'\x00\x00\x00\x00\x00\x00\x00\x00\x00' |
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115 ) |
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116 |
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117 |
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118 def parse_index2(data, inline): |
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119 index, chunkcache = parsers.parse_index2(data, inline) |
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120 return list(index), chunkcache |
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121 |
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122 |
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123 def importparsers(hexversion): |
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124 """Import mercurial.parsers with the given sys.hexversion.""" |
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125 # The file parsers.c inspects sys.hexversion to determine the version |
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126 # of the currently-running Python interpreter, so we monkey-patch |
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127 # sys.hexversion to simulate using different versions. |
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128 code = ( |
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129 "import sys; sys.hexversion=%s; " |
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130 "import mercurial.cext.parsers" % hexversion |
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131 ) |
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132 cmd = "python -c \"%s\"" % code |
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133 # We need to do these tests inside a subprocess because parser.c's |
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134 # version-checking code happens inside the module init function, and |
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135 # when using reload() to reimport an extension module, "The init function |
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136 # of extension modules is not called a second time" |
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137 # (from http://docs.python.org/2/library/functions.html?#reload). |
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138 p = subprocess.Popen( |
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139 cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT |
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140 ) |
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141 return p.communicate() # returns stdout, stderr |
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142 |
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143 |
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144 def hexfailmsg(testnumber, hexversion, stdout, expected): |
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145 try: |
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146 hexstring = hex(hexversion) |
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147 except TypeError: |
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148 hexstring = None |
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149 return ( |
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150 "FAILED: version test #%s with Python %s and patched " |
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151 "sys.hexversion %r (%r):\n Expected %s but got:\n-->'%s'\n" |
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152 % ( |
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153 testnumber, |
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154 sys.version_info, |
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155 hexversion, |
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156 hexstring, |
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157 expected, |
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158 stdout, |
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159 ) |
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160 ) |
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161 |
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162 |
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163 def makehex(major, minor, micro): |
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164 return int("%x%02x%02x00" % (major, minor, micro), 16) |
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165 |
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166 |
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167 class parseindex2tests(unittest.TestCase): |
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168 def assertversionokay(self, testnumber, hexversion): |
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169 stdout, stderr = importparsers(hexversion) |
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170 self.assertFalse( |
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171 stdout, hexfailmsg(testnumber, hexversion, stdout, 'no stdout') |
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172 ) |
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173 |
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174 def assertversionfail(self, testnumber, hexversion): |
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175 stdout, stderr = importparsers(hexversion) |
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176 # We include versionerrortext to distinguish from other ImportErrors. |
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177 errtext = b"ImportError: %s" % pycompat.sysbytes( |
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178 parsers.versionerrortext |
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179 ) |
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180 self.assertIn( |
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181 errtext, |
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182 stdout, |
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183 hexfailmsg( |
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184 testnumber, |
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185 hexversion, |
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186 stdout, |
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187 expected="stdout to contain %r" % errtext, |
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188 ), |
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189 ) |
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190 |
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191 def testversiondetection(self): |
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192 """Check the version-detection logic when importing parsers.""" |
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193 # Only test the version-detection logic if it is present. |
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194 try: |
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195 parsers.versionerrortext |
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196 except AttributeError: |
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197 return |
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198 info = sys.version_info |
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199 major, minor, micro = info[0], info[1], info[2] |
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200 # Test same major-minor versions. |
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201 self.assertversionokay(1, makehex(major, minor, micro)) |
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202 self.assertversionokay(2, makehex(major, minor, micro + 1)) |
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203 # Test different major-minor versions. |
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204 self.assertversionfail(3, makehex(major + 1, minor, micro)) |
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205 self.assertversionfail(4, makehex(major, minor + 1, micro)) |
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206 self.assertversionfail(5, "'foo'") |
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207 |
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208 def testbadargs(self): |
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209 # Check that parse_index2() raises TypeError on bad arguments. |
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210 with self.assertRaises(TypeError): |
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211 parse_index2(0, True) |
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212 |
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213 def testparseindexfile(self): |
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214 # Check parsers.parse_index2() on an index file against the |
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215 # original Python implementation of parseindex, both with and |
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216 # without inlined data. |
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217 |
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218 want = py_parseindex(data_inlined, True) |
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219 got = parse_index2(data_inlined, True) |
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220 self.assertEqual(want, got) # inline data |
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221 |
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222 want = py_parseindex(data_non_inlined, False) |
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223 got = parse_index2(data_non_inlined, False) |
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224 self.assertEqual(want, got) # no inline data |
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225 |
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226 ix = parsers.parse_index2(data_inlined, True)[0] |
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227 for i, r in enumerate(ix): |
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228 if r[7] == nullid: |
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229 i = -1 |
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230 try: |
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231 self.assertEqual( |
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232 ix[r[7]], |
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233 i, |
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234 'Reverse lookup inconsistent for %r' % nodemod.hex(r[7]), |
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235 ) |
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236 except TypeError: |
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237 # pure version doesn't support this |
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238 break |
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239 |
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240 def testminusone(self): |
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241 want = (0, 0, 0, -1, -1, -1, -1, nullid) |
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242 index, junk = parsers.parse_index2(data_inlined, True) |
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243 got = index[-1] |
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244 self.assertEqual(want, got) # inline data |
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245 |
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246 index, junk = parsers.parse_index2(data_non_inlined, False) |
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247 got = index[-1] |
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248 self.assertEqual(want, got) # no inline data |
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249 |
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250 def testdelitemwithoutnodetree(self): |
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251 index, _junk = parsers.parse_index2(data_non_inlined, False) |
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252 |
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253 def hexrev(rev): |
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254 if rev == nullrev: |
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255 return b'\xff\xff\xff\xff' |
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256 else: |
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257 return nodemod.bin('%08x' % rev) |
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258 |
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259 def appendrev(p1, p2=nullrev): |
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260 # node won't matter for this test, let's just make sure |
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261 # they don't collide. Other data don't matter either. |
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262 node = hexrev(p1) + hexrev(p2) + b'.' * 12 |
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263 index.append((0, 0, 12, 1, 34, p1, p2, node)) |
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264 |
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265 appendrev(4) |
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266 appendrev(5) |
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267 appendrev(6) |
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268 self.assertEqual(len(index), 7) |
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269 |
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270 del index[1:-1] |
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271 |
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272 # assertions that failed before correction |
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273 self.assertEqual(len(index), 1) # was 4 |
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274 headrevs = getattr(index, 'headrevs', None) |
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275 if headrevs is not None: # not implemented in pure |
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276 self.assertEqual(index.headrevs(), [0]) # gave ValueError |
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277 |
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278 |
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279 if __name__ == '__main__': |
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280 import silenttestrunner |
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281 |
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282 silenttestrunner.main(__name__) |