Mercurial > hg
annotate tests/test-remotefilelog-datapack.py @ 40910:4bb6195755b1
test: enable sparse-revlog for test-ssh-proto-unbundle.t
We are about to enable sparse-revlog globally. To help with reviewing the
tests change, we isolate them in individual changesets.
Differential Revision: https://phab.mercurial-scm.org/D5337
author | Boris Feld <boris.feld@octobus.net> |
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date | Mon, 12 Nov 2018 01:17:05 +0100 |
parents | 10c10da14c5d |
children | 2888d12b80a6 |
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1 #!/usr/bin/env python |
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2 from __future__ import absolute_import, print_function |
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3 |
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4 import hashlib |
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5 import os |
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6 import random |
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7 import shutil |
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8 import stat |
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9 import struct |
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10 import sys |
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11 import tempfile |
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12 import time |
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13 import unittest |
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14 |
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15 import silenttestrunner |
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16 |
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17 # Load the local remotefilelog, not the system one |
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18 sys.path[0:0] = [os.path.join(os.path.dirname(__file__), '..')] |
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19 from mercurial.node import nullid |
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20 from mercurial import ( |
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21 ui as uimod, |
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22 ) |
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23 from hgext.remotefilelog import ( |
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24 basepack, |
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25 constants, |
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26 datapack, |
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27 ) |
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28 |
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29 class datapacktestsbase(object): |
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30 def __init__(self, datapackreader, paramsavailable): |
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31 self.datapackreader = datapackreader |
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32 self.paramsavailable = paramsavailable |
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33 |
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34 def setUp(self): |
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35 self.tempdirs = [] |
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36 |
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37 def tearDown(self): |
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38 for d in self.tempdirs: |
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39 shutil.rmtree(d) |
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40 |
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41 def makeTempDir(self): |
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42 tempdir = tempfile.mkdtemp() |
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43 self.tempdirs.append(tempdir) |
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44 return tempdir |
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45 |
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46 def getHash(self, content): |
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47 return hashlib.sha1(content).digest() |
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48 |
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49 def getFakeHash(self): |
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50 return ''.join(chr(random.randint(0, 255)) for _ in range(20)) |
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51 |
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52 def createPack(self, revisions=None, packdir=None): |
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53 if revisions is None: |
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54 revisions = [("filename", self.getFakeHash(), nullid, "content")] |
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55 |
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56 if packdir is None: |
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57 packdir = self.makeTempDir() |
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58 |
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59 packer = datapack.mutabledatapack(uimod.ui(), packdir, version=2) |
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60 |
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61 for args in revisions: |
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62 filename, node, base, content = args[0:4] |
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63 # meta is optional |
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64 meta = None |
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65 if len(args) > 4: |
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66 meta = args[4] |
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67 packer.add(filename, node, base, content, metadata=meta) |
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68 |
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69 path = packer.close() |
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70 return self.datapackreader(path) |
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71 |
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72 def _testAddSingle(self, content): |
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73 """Test putting a simple blob into a pack and reading it out. |
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74 """ |
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75 filename = "foo" |
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76 node = self.getHash(content) |
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77 |
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78 revisions = [(filename, node, nullid, content)] |
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79 pack = self.createPack(revisions) |
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80 if self.paramsavailable: |
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81 self.assertEquals(pack.params.fanoutprefix, |
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82 basepack.SMALLFANOUTPREFIX) |
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83 |
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84 chain = pack.getdeltachain(filename, node) |
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85 self.assertEquals(content, chain[0][4]) |
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86 |
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87 def testAddSingle(self): |
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88 self._testAddSingle('') |
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89 |
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90 def testAddSingleEmpty(self): |
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91 self._testAddSingle('abcdef') |
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92 |
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93 def testAddMultiple(self): |
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94 """Test putting multiple unrelated blobs into a pack and reading them |
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95 out. |
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96 """ |
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97 revisions = [] |
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98 for i in range(10): |
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99 filename = "foo%s" % i |
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100 content = "abcdef%s" % i |
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101 node = self.getHash(content) |
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102 revisions.append((filename, node, self.getFakeHash(), content)) |
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103 |
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104 pack = self.createPack(revisions) |
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105 |
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106 for filename, node, base, content in revisions: |
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107 entry = pack.getdelta(filename, node) |
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108 self.assertEquals((content, filename, base, {}), entry) |
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109 |
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110 chain = pack.getdeltachain(filename, node) |
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111 self.assertEquals(content, chain[0][4]) |
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112 |
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113 def testAddDeltas(self): |
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114 """Test putting multiple delta blobs into a pack and read the chain. |
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115 """ |
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116 revisions = [] |
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117 filename = "foo" |
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118 lastnode = nullid |
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119 for i in range(10): |
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120 content = "abcdef%s" % i |
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121 node = self.getHash(content) |
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122 revisions.append((filename, node, lastnode, content)) |
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123 lastnode = node |
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124 |
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125 pack = self.createPack(revisions) |
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126 |
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127 entry = pack.getdelta(filename, revisions[0][1]) |
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128 realvalue = (revisions[0][3], filename, revisions[0][2], {}) |
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129 self.assertEquals(entry, realvalue) |
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130 |
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131 # Test that the chain for the final entry has all the others |
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132 chain = pack.getdeltachain(filename, node) |
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133 for i in range(10): |
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134 content = "abcdef%s" % i |
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135 self.assertEquals(content, chain[-i - 1][4]) |
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136 |
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137 def testPackMany(self): |
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138 """Pack many related and unrelated objects. |
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139 """ |
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140 # Build a random pack file |
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141 revisions = [] |
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142 blobs = {} |
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143 random.seed(0) |
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144 for i in range(100): |
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145 filename = "filename-%s" % i |
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146 filerevs = [] |
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147 for j in range(random.randint(1, 100)): |
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148 content = "content-%s" % j |
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149 node = self.getHash(content) |
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150 lastnode = nullid |
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151 if len(filerevs) > 0: |
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152 lastnode = filerevs[random.randint(0, len(filerevs) - 1)] |
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153 filerevs.append(node) |
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154 blobs[(filename, node, lastnode)] = content |
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155 revisions.append((filename, node, lastnode, content)) |
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156 |
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157 pack = self.createPack(revisions) |
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158 |
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159 # Verify the pack contents |
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160 for (filename, node, lastnode), content in sorted(blobs.iteritems()): |
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161 chain = pack.getdeltachain(filename, node) |
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162 for entry in chain: |
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163 expectedcontent = blobs[(entry[0], entry[1], entry[3])] |
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164 self.assertEquals(entry[4], expectedcontent) |
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165 |
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166 def testPackMetadata(self): |
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167 revisions = [] |
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168 for i in range(100): |
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169 filename = '%s.txt' % i |
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170 content = 'put-something-here \n' * i |
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171 node = self.getHash(content) |
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172 meta = {constants.METAKEYFLAG: i ** 4, |
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173 constants.METAKEYSIZE: len(content), |
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174 'Z': 'random_string', |
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175 '_': '\0' * i} |
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176 revisions.append((filename, node, nullid, content, meta)) |
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177 pack = self.createPack(revisions) |
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178 for name, node, x, content, origmeta in revisions: |
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179 parsedmeta = pack.getmeta(name, node) |
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180 # flag == 0 should be optimized out |
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181 if origmeta[constants.METAKEYFLAG] == 0: |
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182 del origmeta[constants.METAKEYFLAG] |
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183 self.assertEquals(parsedmeta, origmeta) |
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184 |
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185 def testGetMissing(self): |
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186 """Test the getmissing() api. |
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187 """ |
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188 revisions = [] |
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189 filename = "foo" |
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190 lastnode = nullid |
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191 for i in range(10): |
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192 content = "abcdef%s" % i |
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193 node = self.getHash(content) |
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194 revisions.append((filename, node, lastnode, content)) |
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195 lastnode = node |
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196 |
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197 pack = self.createPack(revisions) |
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198 |
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199 missing = pack.getmissing([("foo", revisions[0][1])]) |
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200 self.assertFalse(missing) |
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201 |
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202 missing = pack.getmissing([("foo", revisions[0][1]), |
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203 ("foo", revisions[1][1])]) |
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204 self.assertFalse(missing) |
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205 |
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206 fakenode = self.getFakeHash() |
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207 missing = pack.getmissing([("foo", revisions[0][1]), ("foo", fakenode)]) |
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208 self.assertEquals(missing, [("foo", fakenode)]) |
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209 |
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210 def testAddThrows(self): |
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211 pack = self.createPack() |
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212 |
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213 try: |
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214 pack.add('filename', nullid, 'contents') |
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215 self.assertTrue(False, "datapack.add should throw") |
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216 except RuntimeError: |
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217 pass |
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218 |
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219 def testBadVersionThrows(self): |
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220 pack = self.createPack() |
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221 path = pack.path + '.datapack' |
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222 with open(path) as f: |
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223 raw = f.read() |
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224 raw = struct.pack('!B', 255) + raw[1:] |
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225 os.chmod(path, os.stat(path).st_mode | stat.S_IWRITE) |
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226 with open(path, 'w+') as f: |
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227 f.write(raw) |
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228 |
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229 try: |
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230 pack = self.datapackreader(pack.path) |
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231 self.assertTrue(False, "bad version number should have thrown") |
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232 except RuntimeError: |
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233 pass |
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234 |
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235 def testMissingDeltabase(self): |
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236 fakenode = self.getFakeHash() |
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237 revisions = [("filename", fakenode, self.getFakeHash(), "content")] |
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238 pack = self.createPack(revisions) |
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239 chain = pack.getdeltachain("filename", fakenode) |
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240 self.assertEquals(len(chain), 1) |
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241 |
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242 def testLargePack(self): |
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243 """Test creating and reading from a large pack with over X entries. |
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244 This causes it to use a 2^16 fanout table instead.""" |
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245 revisions = [] |
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246 blobs = {} |
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247 total = basepack.SMALLFANOUTCUTOFF + 1 |
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248 for i in xrange(total): |
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249 filename = "filename-%s" % i |
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250 content = filename |
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251 node = self.getHash(content) |
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252 blobs[(filename, node)] = content |
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253 revisions.append((filename, node, nullid, content)) |
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254 |
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255 pack = self.createPack(revisions) |
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256 if self.paramsavailable: |
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257 self.assertEquals(pack.params.fanoutprefix, |
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258 basepack.LARGEFANOUTPREFIX) |
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259 |
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260 for (filename, node), content in blobs.iteritems(): |
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261 actualcontent = pack.getdeltachain(filename, node)[0][4] |
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262 self.assertEquals(actualcontent, content) |
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263 |
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264 def testPacksCache(self): |
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265 """Test that we remember the most recent packs while fetching the delta |
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266 chain.""" |
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267 |
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268 packdir = self.makeTempDir() |
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269 deltachains = [] |
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270 |
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271 numpacks = 10 |
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272 revisionsperpack = 100 |
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273 |
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274 for i in range(numpacks): |
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275 chain = [] |
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276 revision = (str(i), self.getFakeHash(), nullid, "content") |
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277 |
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278 for _ in range(revisionsperpack): |
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279 chain.append(revision) |
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280 revision = ( |
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281 str(i), |
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282 self.getFakeHash(), |
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283 revision[1], |
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284 self.getFakeHash() |
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285 ) |
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286 |
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287 self.createPack(chain, packdir) |
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288 deltachains.append(chain) |
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289 |
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290 class testdatapackstore(datapack.datapackstore): |
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291 # Ensures that we are not keeping everything in the cache. |
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292 DEFAULTCACHESIZE = numpacks / 2 |
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293 |
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294 store = testdatapackstore(uimod.ui(), packdir) |
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295 |
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296 random.shuffle(deltachains) |
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297 for randomchain in deltachains: |
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298 revision = random.choice(randomchain) |
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299 chain = store.getdeltachain(revision[0], revision[1]) |
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300 |
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301 mostrecentpack = next(iter(store.packs), None) |
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302 self.assertEquals( |
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303 mostrecentpack.getdeltachain(revision[0], revision[1]), |
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304 chain |
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305 ) |
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306 |
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307 self.assertEquals(randomchain.index(revision) + 1, len(chain)) |
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308 |
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309 # perf test off by default since it's slow |
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310 def _testIndexPerf(self): |
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311 random.seed(0) |
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312 print("Multi-get perf test") |
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313 packsizes = [ |
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314 100, |
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315 10000, |
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316 100000, |
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317 500000, |
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318 1000000, |
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319 3000000, |
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320 ] |
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321 lookupsizes = [ |
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322 10, |
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323 100, |
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324 1000, |
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325 10000, |
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326 100000, |
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327 1000000, |
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328 ] |
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329 for packsize in packsizes: |
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330 revisions = [] |
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331 for i in xrange(packsize): |
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332 filename = "filename-%s" % i |
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333 content = "content-%s" % i |
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334 node = self.getHash(content) |
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335 revisions.append((filename, node, nullid, content)) |
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336 |
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337 path = self.createPack(revisions).path |
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338 |
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339 # Perf of large multi-get |
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340 import gc |
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341 gc.disable() |
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342 pack = self.datapackreader(path) |
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343 for lookupsize in lookupsizes: |
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344 if lookupsize > packsize: |
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345 continue |
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346 random.shuffle(revisions) |
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347 findnodes = [(rev[0], rev[1]) for rev in revisions] |
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348 |
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349 start = time.time() |
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350 pack.getmissing(findnodes[:lookupsize]) |
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351 elapsed = time.time() - start |
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352 print ("%s pack %s lookups = %0.04f" % |
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353 (('%s' % packsize).rjust(7), |
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354 ('%s' % lookupsize).rjust(7), |
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355 elapsed)) |
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356 |
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357 print("") |
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358 gc.enable() |
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359 |
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360 # The perf test is meant to produce output, so we always fail the test |
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361 # so the user sees the output. |
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362 raise RuntimeError("perf test always fails") |
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363 |
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364 class datapacktests(datapacktestsbase, unittest.TestCase): |
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365 def __init__(self, *args, **kwargs): |
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366 datapacktestsbase.__init__(self, datapack.datapack, True) |
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367 unittest.TestCase.__init__(self, *args, **kwargs) |
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368 |
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369 # TODO: |
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370 # datapack store: |
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371 # - getmissing |
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372 # - GC two packs into one |
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373 |
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374 if __name__ == '__main__': |
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375 silenttestrunner.main(__name__) |