Mercurial > hg
annotate tests/test-remotefilelog-histpack.py @ 46874:84a93fa7ecfd
revlog-compression: use zstd by default (if available)
As see in changeset bb271ec2fbfb, zstd is 20% to 50% faster for reading and
writing.
Use take advantage of the new config behavior to try zstd by default, falling
back to zlib is zstd is not available on that plateform.
Differential Revision: https://phab.mercurial-scm.org/D10326
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Tue, 06 Apr 2021 18:55:19 +0200 |
parents | 89a2afe31e82 |
children | d55b71393907 |
rev | line source |
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1 #!/usr/bin/env python3 |
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2 from __future__ import absolute_import |
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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 unittest |
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13 |
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14 import silenttestrunner |
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15 |
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16 from mercurial.node import nullid |
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17 from mercurial import ( |
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18 pycompat, |
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19 ui as uimod, |
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20 ) |
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21 |
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22 # Load the local remotefilelog, not the system one |
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23 sys.path[0:0] = [os.path.join(os.path.dirname(__file__), '..')] |
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24 from hgext.remotefilelog import ( |
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25 basepack, |
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26 historypack, |
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27 ) |
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28 |
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29 |
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30 class histpacktests(unittest.TestCase): |
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31 def setUp(self): |
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32 self.tempdirs = [] |
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33 |
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34 def tearDown(self): |
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35 for d in self.tempdirs: |
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36 shutil.rmtree(d) |
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37 |
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38 def makeTempDir(self): |
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39 tempdir = tempfile.mkdtemp() |
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40 self.tempdirs.append(tempdir) |
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41 return pycompat.fsencode(tempdir) |
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42 |
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43 def getHash(self, content): |
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44 return hashlib.sha1(content).digest() |
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45 |
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46 def getFakeHash(self): |
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47 return b''.join( |
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48 pycompat.bytechr(random.randint(0, 255)) for _ in range(20) |
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49 ) |
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50 |
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51 def createPack(self, revisions=None): |
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52 """Creates and returns a historypack containing the specified revisions. |
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53 |
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54 `revisions` is a list of tuples, where each tuple contains a filanem, |
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55 node, p1node, p2node, and linknode. |
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56 """ |
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57 if revisions is None: |
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58 revisions = [ |
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59 ( |
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60 b"filename", |
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61 self.getFakeHash(), |
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62 nullid, |
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63 nullid, |
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64 self.getFakeHash(), |
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65 None, |
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66 ) |
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67 ] |
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68 |
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69 packdir = pycompat.fsencode(self.makeTempDir()) |
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70 packer = historypack.mutablehistorypack(uimod.ui(), packdir, version=2) |
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71 |
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72 for filename, node, p1, p2, linknode, copyfrom in revisions: |
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73 packer.add(filename, node, p1, p2, linknode, copyfrom) |
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74 |
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75 path = packer.close() |
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76 return historypack.historypack(path) |
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77 |
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78 def testAddSingle(self): |
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79 """Test putting a single entry into a pack and reading it out.""" |
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80 filename = b"foo" |
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81 node = self.getFakeHash() |
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82 p1 = self.getFakeHash() |
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83 p2 = self.getFakeHash() |
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84 linknode = self.getFakeHash() |
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85 |
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86 revisions = [(filename, node, p1, p2, linknode, None)] |
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87 pack = self.createPack(revisions) |
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88 |
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89 actual = pack.getancestors(filename, node)[node] |
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90 self.assertEqual(p1, actual[0]) |
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91 self.assertEqual(p2, actual[1]) |
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92 self.assertEqual(linknode, actual[2]) |
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93 |
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94 def testAddMultiple(self): |
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95 """Test putting multiple unrelated revisions into a pack and reading |
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96 them out. |
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97 """ |
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98 revisions = [] |
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99 for i in range(10): |
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100 filename = b"foo-%d" % i |
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101 node = self.getFakeHash() |
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102 p1 = self.getFakeHash() |
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103 p2 = self.getFakeHash() |
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104 linknode = self.getFakeHash() |
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105 revisions.append((filename, node, p1, p2, linknode, None)) |
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106 |
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107 pack = self.createPack(revisions) |
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108 |
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109 for filename, node, p1, p2, linknode, copyfrom in revisions: |
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110 actual = pack.getancestors(filename, node)[node] |
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111 self.assertEqual(p1, actual[0]) |
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112 self.assertEqual(p2, actual[1]) |
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113 self.assertEqual(linknode, actual[2]) |
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114 self.assertEqual(copyfrom, actual[3]) |
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115 |
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116 def testAddAncestorChain(self): |
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117 """Test putting multiple revisions in into a pack and read the ancestor |
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118 chain. |
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119 """ |
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120 revisions = [] |
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121 filename = b"foo" |
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122 lastnode = nullid |
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123 for i in range(10): |
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124 node = self.getFakeHash() |
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125 revisions.append((filename, node, lastnode, nullid, nullid, None)) |
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126 lastnode = node |
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127 |
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128 # revisions must be added in topological order, newest first |
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129 revisions = list(reversed(revisions)) |
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130 pack = self.createPack(revisions) |
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131 |
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132 # Test that the chain has all the entries |
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133 ancestors = pack.getancestors(revisions[0][0], revisions[0][1]) |
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134 for filename, node, p1, p2, linknode, copyfrom in revisions: |
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135 ap1, ap2, alinknode, acopyfrom = ancestors[node] |
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136 self.assertEqual(ap1, p1) |
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137 self.assertEqual(ap2, p2) |
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138 self.assertEqual(alinknode, linknode) |
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139 self.assertEqual(acopyfrom, copyfrom) |
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140 |
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141 def testPackMany(self): |
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142 """Pack many related and unrelated ancestors.""" |
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143 # Build a random pack file |
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144 allentries = {} |
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145 ancestorcounts = {} |
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146 revisions = [] |
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147 random.seed(0) |
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148 for i in range(100): |
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149 filename = b"filename-%d" % i |
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150 entries = [] |
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151 p2 = nullid |
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152 linknode = nullid |
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153 for j in range(random.randint(1, 100)): |
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154 node = self.getFakeHash() |
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155 p1 = nullid |
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156 if len(entries) > 0: |
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157 p1 = entries[random.randint(0, len(entries) - 1)] |
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158 entries.append(node) |
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159 revisions.append((filename, node, p1, p2, linknode, None)) |
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160 allentries[(filename, node)] = (p1, p2, linknode) |
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161 if p1 == nullid: |
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162 ancestorcounts[(filename, node)] = 1 |
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163 else: |
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164 newcount = ancestorcounts[(filename, p1)] + 1 |
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165 ancestorcounts[(filename, node)] = newcount |
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166 |
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167 # Must add file entries in reverse topological order |
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168 revisions = list(reversed(revisions)) |
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169 pack = self.createPack(revisions) |
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170 |
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171 # Verify the pack contents |
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172 for (filename, node) in allentries: |
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173 ancestors = pack.getancestors(filename, node) |
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174 self.assertEqual(ancestorcounts[(filename, node)], len(ancestors)) |
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175 for anode, (ap1, ap2, alinknode, copyfrom) in ancestors.items(): |
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176 ep1, ep2, elinknode = allentries[(filename, anode)] |
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177 self.assertEqual(ap1, ep1) |
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178 self.assertEqual(ap2, ep2) |
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179 self.assertEqual(alinknode, elinknode) |
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180 self.assertEqual(copyfrom, None) |
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181 |
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182 def testGetNodeInfo(self): |
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183 revisions = [] |
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184 filename = b"foo" |
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185 lastnode = nullid |
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186 for i in range(10): |
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187 node = self.getFakeHash() |
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188 revisions.append((filename, node, lastnode, nullid, nullid, None)) |
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189 lastnode = node |
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190 |
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191 pack = self.createPack(revisions) |
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192 |
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193 # Test that getnodeinfo returns the expected results |
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194 for filename, node, p1, p2, linknode, copyfrom in revisions: |
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195 ap1, ap2, alinknode, acopyfrom = pack.getnodeinfo(filename, node) |
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196 self.assertEqual(ap1, p1) |
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197 self.assertEqual(ap2, p2) |
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198 self.assertEqual(alinknode, linknode) |
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199 self.assertEqual(acopyfrom, copyfrom) |
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200 |
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201 def testGetMissing(self): |
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202 """Test the getmissing() api.""" |
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203 revisions = [] |
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204 filename = b"foo" |
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205 for i in range(10): |
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206 node = self.getFakeHash() |
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207 p1 = self.getFakeHash() |
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208 p2 = self.getFakeHash() |
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209 linknode = self.getFakeHash() |
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210 revisions.append((filename, node, p1, p2, linknode, None)) |
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211 |
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212 pack = self.createPack(revisions) |
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213 |
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214 missing = pack.getmissing([(filename, revisions[0][1])]) |
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215 self.assertFalse(missing) |
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216 |
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217 missing = pack.getmissing( |
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218 [(filename, revisions[0][1]), (filename, revisions[1][1])] |
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219 ) |
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220 self.assertFalse(missing) |
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221 |
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222 fakenode = self.getFakeHash() |
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223 missing = pack.getmissing( |
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224 [(filename, revisions[0][1]), (filename, fakenode)] |
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225 ) |
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226 self.assertEqual(missing, [(filename, fakenode)]) |
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227 |
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228 # Test getmissing on a non-existant filename |
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229 missing = pack.getmissing([(b"bar", fakenode)]) |
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230 self.assertEqual(missing, [(b"bar", fakenode)]) |
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231 |
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232 def testAddThrows(self): |
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233 pack = self.createPack() |
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234 |
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235 try: |
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236 pack.add(b'filename', nullid, nullid, nullid, nullid, None) |
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237 self.assertTrue(False, "historypack.add should throw") |
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238 except RuntimeError: |
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239 pass |
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240 |
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241 def testBadVersionThrows(self): |
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242 pack = self.createPack() |
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243 path = pack.path + b'.histpack' |
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244 with open(path, 'rb') as f: |
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245 raw = f.read() |
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246 raw = struct.pack('!B', 255) + raw[1:] |
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247 os.chmod(path, os.stat(path).st_mode | stat.S_IWRITE) |
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248 with open(path, 'wb+') as f: |
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249 f.write(raw) |
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250 |
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251 try: |
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252 historypack.historypack(pack.path) |
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253 self.assertTrue(False, "bad version number should have thrown") |
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254 except RuntimeError: |
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255 pass |
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256 |
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257 def testLargePack(self): |
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258 """Test creating and reading from a large pack with over X entries. |
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259 This causes it to use a 2^16 fanout table instead.""" |
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260 total = basepack.SMALLFANOUTCUTOFF + 1 |
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261 revisions = [] |
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262 for i in pycompat.xrange(total): |
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263 filename = b"foo-%d" % i |
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264 node = self.getFakeHash() |
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265 p1 = self.getFakeHash() |
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266 p2 = self.getFakeHash() |
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267 linknode = self.getFakeHash() |
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268 revisions.append((filename, node, p1, p2, linknode, None)) |
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269 |
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270 pack = self.createPack(revisions) |
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271 self.assertEqual(pack.params.fanoutprefix, basepack.LARGEFANOUTPREFIX) |
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272 |
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273 for filename, node, p1, p2, linknode, copyfrom in revisions: |
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274 actual = pack.getancestors(filename, node)[node] |
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275 self.assertEqual(p1, actual[0]) |
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276 self.assertEqual(p2, actual[1]) |
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277 self.assertEqual(linknode, actual[2]) |
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278 self.assertEqual(copyfrom, actual[3]) |
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279 |
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280 |
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281 # TODO: |
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282 # histpack store: |
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283 # - repack two packs into one |
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284 |
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285 if __name__ == '__main__': |
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286 if pycompat.iswindows: |
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287 sys.exit(80) # Skip on Windows |
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288 silenttestrunner.main(__name__) |