Mercurial > hg
annotate tests/test-parseindex2.py @ 40417:49c7b701fdc2 stable
phase: add an archived phase
This phase allows for hidden changesets in the "user space". It differs from
the "internal" phase which is intended for internal by-product only. There
have been discussions at the 4.8 sprint to use such phase to speedup cleanup
after history rewriting operation.
Shipping it in the same release as the 'internal-phase' groups the associated
`requires` entry. The important bit is to have support for this phase in the
earliest version of mercurial possible. Adding the UI to manipulate this new
phase later seems fine.
The current plan for archived usage and user interface are as follow. On a
repository with internal-phase on and evolution off:
* history rewriting command set rewritten changeset in the archived phase.
(This mean updating the cleanupnodes method).
* keep `hg unbundle .hg/strip-backup/X.hg` as a way to restore changeset for
now
(backup bundle need to contains phase data)
* [maybe] add a `hg strip --soft` advance flag
(a light way to expose the feature without getting in the way of a better
UI)
Mercurial 4.8 freeze is too close to get the above in by then.
We don't introduce a new repository `requirement` as we reuse the one
introduced with the 'archived' phase during the 4.8 cycle.
author | Boris Feld <boris.feld@octobus.net> |
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date | Wed, 17 Oct 2018 14:47:01 +0200 |
parents | daedb70fd467 |
children | 2372284d9457 |
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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5 |
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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(r'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 def offset_type(offset, type): |
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30 return int(int(offset) << 16 | type) |
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31 |
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32 indexformatng = ">Qiiiiii20s12x" |
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33 |
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34 def py_parseindex(data, inline) : |
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35 s = 64 |
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36 cache = None |
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37 index = [] |
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38 nodemap = {nullid: nullrev} |
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39 n = off = 0 |
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41 l = len(data) - s |
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42 append = index.append |
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43 if inline: |
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44 cache = (0, data) |
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45 while off <= l: |
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46 e = struct.unpack(indexformatng, data[off:off + s]) |
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47 nodemap[e[7]] = n |
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48 append(e) |
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49 n += 1 |
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50 if e[1] < 0: |
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51 break |
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52 off += e[1] + s |
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53 else: |
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54 while off <= l: |
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55 e = struct.unpack(indexformatng, data[off:off + s]) |
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56 nodemap[e[7]] = n |
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57 append(e) |
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58 n += 1 |
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59 off += s |
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60 |
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61 e = list(index[0]) |
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62 type = gettype(e[0]) |
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63 e[0] = offset_type(0, type) |
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64 index[0] = tuple(e) |
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65 |
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66 return index, cache |
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67 |
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68 data_inlined = ( |
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69 b'\x00\x01\x00\x01\x00\x00\x00\x00\x00\x00\x01\x8c' |
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70 b'\x00\x00\x04\x07\x00\x00\x00\x00\x00\x00\x15\x15\xff\xff\xff' |
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71 b'\xff\xff\xff\xff\xff\xebG\x97\xb7\x1fB\x04\xcf\x13V\x81\tw\x1b' |
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72 b'w\xdduR\xda\xc6\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' |
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73 b'x\x9c\x9d\x93?O\xc30\x10\xc5\xf7|\x8a\xdb\x9a\xa8m\x06\xd8*\x95' |
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74 b'\x81B\xa1\xa2\xa2R\xcb\x86Pd\x9a\x0b5$vd_\x04\xfd\xf6\x9c\xff@' |
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75 b'\x11!\x0b\xd9\xec\xf7\xbbw\xe7gG6\xad6\x04\xdaN\xc0\x92\xa0$)' |
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76 b'\xb1\x82\xa2\xd1%\x16\xa4\x8b7\xa9\xca\xd4-\xb2Y\x02\xfc\xc9' |
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77 b'\xcaS\xf9\xaeX\xed\xb6\xd77Q\x02\x83\xd4\x19\xf5--Y\xea\xe1W' |
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78 b'\xab\xed\x10\xceR\x0f_\xdf\xdf\r\xe1,\xf5\xf0\xcb\xf5 \xceR\x0f' |
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79 b'_\xdc\x0e\x0e\xc3R\x0f_\xae\x96\x9b!\x9e\xa5\x1e\xbf\xdb,\x06' |
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80 b'\xc7q\x9a/\x88\x82\xc3B\xea\xb5\xb4TJ\x93\xb6\x82\x0e\xe16\xe6' |
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81 b'KQ\xdb\xaf\xecG\xa3\xd1 \x01\xd3\x0b_^\xe8\xaa\xa0\xae\xad\xd1' |
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82 b'&\xbef\x1bz\x08\xb0|\xc9Xz\x06\xf6Z\x91\x90J\xaa\x17\x90\xaa' |
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83 b'\xd2\xa6\x11$5C\xcf\xba#\xa0\x03\x02*2\x92-\xfc\xb1\x94\xdf\xe2' |
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84 b'\xae\xb8\'m\x8ey0^\x85\xd3\x82\xb4\xf0`:\x9c\x00\x8a\xfd\x01' |
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85 b'\xb0\xc6\x86\x8b\xdd\xae\x80\xf3\xa9\x9fd\x16\n\x00R%\x1a\x06' |
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86 b'\xe9\xd8b\x98\x1d\xf4\xf3+\x9bf\x01\xd8p\x1b\xf3.\xed\x9f^g\xc3' |
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87 b'^\xd9W81T\xdb\xd5\x04sx|\xf2\xeb\xd6`%?x\xed"\x831\xbf\xf3\xdc' |
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88 b'b\xeb%gaY\xe1\xad\x9f\xb9f\'1w\xa9\xa5a\x83s\x82J\xb98\xbc4\x8b' |
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89 b'\x83\x00\x9f$z\xb8#\xa5\xb1\xdf\x98\xd9\xec\x1b\x89O\xe3Ts\x9a4' |
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90 b'\x17m\x8b\xfc\x8f\xa5\x95\x9a\xfc\xfa\xed,\xe5|\xa1\xfe\x15\xb9' |
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91 b'\xbc\xb2\x93\x1f\xf2\x95\xff\xdf,\x1a\xc5\xe7\x17*\x93Oz:>\x0e' |
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92 ) |
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93 |
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94 data_non_inlined = ( |
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95 b'\x00\x00\x00\x01\x00\x00\x00\x00\x00\x01D\x19' |
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96 b'\x00\x07e\x12\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff' |
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97 b'\xff\xff\xff\xff\xd1\xf4\xbb\xb0\xbe\xfc\x13\xbd\x8c\xd3\x9d' |
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98 b'\x0f\xcd\xd9;\x8c\x07\x8cJ/\x00\x00\x00\x00\x00\x00\x00\x00\x00' |
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100 b'\x00\x01q\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\xff' |
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101 b'\xff\xff\xff\xc1\x12\xb9\x04\x96\xa4Z1t\x91\xdfsJ\x90\xf0\x9bh' |
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102 b'\x07l&\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' |
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103 b'\x00\x01D\xf8\x00\x00\x00\x00\x01\x1b\x00\x00\x01\xb8\x00\x00' |
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104 b'\x00\x01\x00\x00\x00\x02\x00\x00\x00\x01\xff\xff\xff\xff\x02\n' |
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105 b'\x0e\xc6&\xa1\x92\xae6\x0b\x02i\xfe-\xe5\xbao\x05\xd1\xe7\x00' |
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106 b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01F' |
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107 b'\x13\x00\x00\x00\x00\x01\xec\x00\x00\x03\x06\x00\x00\x00\x01' |
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108 b'\x00\x00\x00\x03\x00\x00\x00\x02\xff\xff\xff\xff\x12\xcb\xeby1' |
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109 b'\xb6\r\x98B\xcb\x07\xbd`\x8f\x92\xd9\xc4\x84\xbdK\x00\x00\x00' |
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110 b'\x00\x00\x00\x00\x00\x00\x00\x00\x00' |
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111 ) |
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112 |
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113 def parse_index2(data, inline): |
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114 index, chunkcache = parsers.parse_index2(data, inline) |
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115 return list(index), chunkcache |
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116 |
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117 def importparsers(hexversion): |
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118 """Import mercurial.parsers with the given sys.hexversion.""" |
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119 # The file parsers.c inspects sys.hexversion to determine the version |
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120 # of the currently-running Python interpreter, so we monkey-patch |
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121 # sys.hexversion to simulate using different versions. |
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122 code = ("import sys; sys.hexversion=%s; " |
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123 "import mercurial.cext.parsers" % hexversion) |
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124 cmd = "python -c \"%s\"" % code |
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125 # We need to do these tests inside a subprocess because parser.c's |
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126 # version-checking code happens inside the module init function, and |
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127 # when using reload() to reimport an extension module, "The init function |
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128 # of extension modules is not called a second time" |
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129 # (from http://docs.python.org/2/library/functions.html?#reload). |
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130 p = subprocess.Popen(cmd, shell=True, |
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131 stdout=subprocess.PIPE, stderr=subprocess.STDOUT) |
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132 return p.communicate() # returns stdout, stderr |
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133 |
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134 def hexfailmsg(testnumber, hexversion, stdout, expected): |
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135 try: |
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136 hexstring = hex(hexversion) |
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137 except TypeError: |
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138 hexstring = None |
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139 return ("FAILED: version test #%s with Python %s and patched " |
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140 "sys.hexversion %r (%r):\n Expected %s but got:\n-->'%s'\n" % |
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141 (testnumber, sys.version_info, hexversion, hexstring, expected, |
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142 stdout)) |
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143 |
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144 def makehex(major, minor, micro): |
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145 return int("%x%02x%02x00" % (major, minor, micro), 16) |
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146 |
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147 class parseindex2tests(unittest.TestCase): |
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148 |
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149 def assertversionokay(self, testnumber, hexversion): |
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150 stdout, stderr = importparsers(hexversion) |
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151 self.assertFalse( |
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152 stdout, hexfailmsg(testnumber, hexversion, stdout, 'no stdout')) |
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153 |
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154 def assertversionfail(self, testnumber, hexversion): |
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155 stdout, stderr = importparsers(hexversion) |
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156 # We include versionerrortext to distinguish from other ImportErrors. |
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157 errtext = b"ImportError: %s" % pycompat.sysbytes( |
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158 parsers.versionerrortext) |
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159 self.assertIn(errtext, stdout, |
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160 hexfailmsg(testnumber, hexversion, stdout, |
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161 expected="stdout to contain %r" % errtext)) |
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162 |
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163 def testversiondetection(self): |
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164 """Check the version-detection logic when importing parsers.""" |
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165 # Only test the version-detection logic if it is present. |
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166 try: |
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167 parsers.versionerrortext |
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168 except AttributeError: |
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169 return |
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170 info = sys.version_info |
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171 major, minor, micro = info[0], info[1], info[2] |
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172 # Test same major-minor versions. |
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173 self.assertversionokay(1, makehex(major, minor, micro)) |
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174 self.assertversionokay(2, makehex(major, minor, micro + 1)) |
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175 # Test different major-minor versions. |
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176 self.assertversionfail(3, makehex(major + 1, minor, micro)) |
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177 self.assertversionfail(4, makehex(major, minor + 1, micro)) |
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178 self.assertversionfail(5, "'foo'") |
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179 |
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180 def testbadargs(self): |
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181 # Check that parse_index2() raises TypeError on bad arguments. |
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182 with self.assertRaises(TypeError): |
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183 parse_index2(0, True) |
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184 |
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185 def testparseindexfile(self): |
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186 # Check parsers.parse_index2() on an index file against the |
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187 # original Python implementation of parseindex, both with and |
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188 # without inlined data. |
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189 |
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190 want = py_parseindex(data_inlined, True) |
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191 got = parse_index2(data_inlined, True) |
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192 self.assertEqual(want, got) # inline data |
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193 |
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194 want = py_parseindex(data_non_inlined, False) |
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195 got = parse_index2(data_non_inlined, False) |
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196 self.assertEqual(want, got) # no inline data |
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197 |
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198 ix = parsers.parse_index2(data_inlined, True)[0] |
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199 for i, r in enumerate(ix): |
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200 if r[7] == nullid: |
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201 i = -1 |
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202 try: |
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203 self.assertEqual( |
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204 ix[r[7]], i, |
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205 'Reverse lookup inconsistent for %r' % nodemod.hex(r[7])) |
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206 except TypeError: |
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207 # pure version doesn't support this |
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208 break |
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209 |
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210 def testminusone(self): |
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211 want = (0, 0, 0, -1, -1, -1, -1, nullid) |
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212 index, junk = parsers.parse_index2(data_inlined, True) |
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213 got = index[-1] |
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214 self.assertEqual(want, got) # inline data |
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215 |
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216 index, junk = parsers.parse_index2(data_non_inlined, False) |
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217 got = index[-1] |
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218 self.assertEqual(want, got) # no inline data |
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219 |
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220 if __name__ == '__main__': |
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221 import silenttestrunner |
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222 silenttestrunner.main(__name__) |