Mercurial > hg
annotate tests/test-remotefilelog-histpack.py @ 41323:abac73eedd4d
tests: use bytes for file I/O
Otherwise we get various type mismatches.
Differential Revision: https://phab.mercurial-scm.org/D5655
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Tue, 22 Jan 2019 18:24:52 -0800 |
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children | 876494fd967d |
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1 #!/usr/bin/env python |
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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 # Load the local remotefilelog, not the system one |
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22 sys.path[0:0] = [os.path.join(os.path.dirname(__file__), '..')] |
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23 from hgext.remotefilelog import ( |
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24 basepack, |
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25 historypack, |
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26 ) |
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27 |
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28 class histpacktests(unittest.TestCase): |
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29 def setUp(self): |
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30 self.tempdirs = [] |
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31 |
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32 def tearDown(self): |
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33 for d in self.tempdirs: |
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34 shutil.rmtree(d) |
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35 |
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36 def makeTempDir(self): |
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37 tempdir = tempfile.mkdtemp() |
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38 self.tempdirs.append(tempdir) |
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39 return pycompat.fsencode(tempdir) |
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40 |
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41 def getHash(self, content): |
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42 return hashlib.sha1(content).digest() |
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43 |
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44 def getFakeHash(self): |
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45 return b''.join(pycompat.bytechr(random.randint(0, 255)) |
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46 for _ in range(20)) |
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47 |
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48 def createPack(self, revisions=None): |
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49 """Creates and returns a historypack containing the specified revisions. |
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50 |
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51 `revisions` is a list of tuples, where each tuple contains a filanem, |
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52 node, p1node, p2node, and linknode. |
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53 """ |
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54 if revisions is None: |
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55 revisions = [(b"filename", self.getFakeHash(), nullid, nullid, |
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56 self.getFakeHash(), None)] |
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57 |
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58 packdir = pycompat.fsencode(self.makeTempDir()) |
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59 packer = historypack.mutablehistorypack(uimod.ui(), packdir, |
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60 version=2) |
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61 |
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62 for filename, node, p1, p2, linknode, copyfrom in revisions: |
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63 packer.add(filename, node, p1, p2, linknode, copyfrom) |
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64 |
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65 path = packer.close() |
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66 return historypack.historypack(path) |
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67 |
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68 def testAddSingle(self): |
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69 """Test putting a single entry into a pack and reading it out. |
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70 """ |
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71 filename = b"foo" |
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72 node = self.getFakeHash() |
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73 p1 = self.getFakeHash() |
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74 p2 = self.getFakeHash() |
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75 linknode = self.getFakeHash() |
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76 |
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77 revisions = [(filename, node, p1, p2, linknode, None)] |
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78 pack = self.createPack(revisions) |
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79 |
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80 actual = pack.getancestors(filename, node)[node] |
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81 self.assertEqual(p1, actual[0]) |
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82 self.assertEqual(p2, actual[1]) |
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83 self.assertEqual(linknode, actual[2]) |
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84 |
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85 def testAddMultiple(self): |
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86 """Test putting multiple unrelated revisions into a pack and reading |
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87 them out. |
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88 """ |
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89 revisions = [] |
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90 for i in range(10): |
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91 filename = b"foo-%d" % i |
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92 node = self.getFakeHash() |
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93 p1 = self.getFakeHash() |
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94 p2 = self.getFakeHash() |
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95 linknode = self.getFakeHash() |
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96 revisions.append((filename, node, p1, p2, linknode, None)) |
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97 |
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98 pack = self.createPack(revisions) |
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99 |
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100 for filename, node, p1, p2, linknode, copyfrom in revisions: |
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101 actual = pack.getancestors(filename, node)[node] |
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102 self.assertEqual(p1, actual[0]) |
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103 self.assertEqual(p2, actual[1]) |
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104 self.assertEqual(linknode, actual[2]) |
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105 self.assertEqual(copyfrom, actual[3]) |
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106 |
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107 def testAddAncestorChain(self): |
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108 """Test putting multiple revisions in into a pack and read the ancestor |
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109 chain. |
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110 """ |
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111 revisions = [] |
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112 filename = b"foo" |
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113 lastnode = nullid |
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114 for i in range(10): |
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115 node = self.getFakeHash() |
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116 revisions.append((filename, node, lastnode, nullid, nullid, None)) |
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117 lastnode = node |
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118 |
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119 # revisions must be added in topological order, newest first |
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120 revisions = list(reversed(revisions)) |
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121 pack = self.createPack(revisions) |
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122 |
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123 # Test that the chain has all the entries |
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124 ancestors = pack.getancestors(revisions[0][0], revisions[0][1]) |
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125 for filename, node, p1, p2, linknode, copyfrom in revisions: |
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126 ap1, ap2, alinknode, acopyfrom = ancestors[node] |
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127 self.assertEqual(ap1, p1) |
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128 self.assertEqual(ap2, p2) |
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129 self.assertEqual(alinknode, linknode) |
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130 self.assertEqual(acopyfrom, copyfrom) |
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131 |
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132 def testPackMany(self): |
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133 """Pack many related and unrelated ancestors. |
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134 """ |
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135 # Build a random pack file |
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136 allentries = {} |
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137 ancestorcounts = {} |
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138 revisions = [] |
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139 random.seed(0) |
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140 for i in range(100): |
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141 filename = b"filename-%d" % i |
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142 entries = [] |
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143 p2 = nullid |
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144 linknode = nullid |
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145 for j in range(random.randint(1, 100)): |
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146 node = self.getFakeHash() |
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147 p1 = nullid |
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148 if len(entries) > 0: |
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149 p1 = entries[random.randint(0, len(entries) - 1)] |
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150 entries.append(node) |
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151 revisions.append((filename, node, p1, p2, linknode, None)) |
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152 allentries[(filename, node)] = (p1, p2, linknode) |
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153 if p1 == nullid: |
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154 ancestorcounts[(filename, node)] = 1 |
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155 else: |
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156 newcount = ancestorcounts[(filename, p1)] + 1 |
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157 ancestorcounts[(filename, node)] = newcount |
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158 |
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159 # Must add file entries in reverse topological order |
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160 revisions = list(reversed(revisions)) |
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161 pack = self.createPack(revisions) |
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162 |
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163 # Verify the pack contents |
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164 for (filename, node), (p1, p2, lastnode) in allentries.items(): |
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165 ancestors = pack.getancestors(filename, node) |
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166 self.assertEqual(ancestorcounts[(filename, node)], |
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167 len(ancestors)) |
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168 for anode, (ap1, ap2, alinknode, copyfrom) in ancestors.items(): |
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169 ep1, ep2, elinknode = allentries[(filename, anode)] |
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170 self.assertEqual(ap1, ep1) |
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171 self.assertEqual(ap2, ep2) |
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172 self.assertEqual(alinknode, elinknode) |
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173 self.assertEqual(copyfrom, None) |
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174 |
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175 def testGetNodeInfo(self): |
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176 revisions = [] |
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177 filename = b"foo" |
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178 lastnode = nullid |
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179 for i in range(10): |
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180 node = self.getFakeHash() |
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181 revisions.append((filename, node, lastnode, nullid, nullid, None)) |
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182 lastnode = node |
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183 |
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184 pack = self.createPack(revisions) |
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185 |
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186 # Test that getnodeinfo returns the expected results |
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187 for filename, node, p1, p2, linknode, copyfrom in revisions: |
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188 ap1, ap2, alinknode, acopyfrom = pack.getnodeinfo(filename, node) |
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189 self.assertEqual(ap1, p1) |
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190 self.assertEqual(ap2, p2) |
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191 self.assertEqual(alinknode, linknode) |
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192 self.assertEqual(acopyfrom, copyfrom) |
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193 |
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194 def testGetMissing(self): |
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195 """Test the getmissing() api. |
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196 """ |
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197 revisions = [] |
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198 filename = b"foo" |
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199 for i in range(10): |
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200 node = self.getFakeHash() |
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201 p1 = self.getFakeHash() |
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202 p2 = self.getFakeHash() |
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203 linknode = self.getFakeHash() |
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204 revisions.append((filename, node, p1, p2, linknode, None)) |
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205 |
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206 pack = self.createPack(revisions) |
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207 |
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208 missing = pack.getmissing([(filename, revisions[0][1])]) |
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209 self.assertFalse(missing) |
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210 |
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211 missing = pack.getmissing([(filename, revisions[0][1]), |
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212 (filename, revisions[1][1])]) |
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213 self.assertFalse(missing) |
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214 |
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215 fakenode = self.getFakeHash() |
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216 missing = pack.getmissing([(filename, revisions[0][1]), |
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217 (filename, fakenode)]) |
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218 self.assertEqual(missing, [(filename, fakenode)]) |
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219 |
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220 # Test getmissing on a non-existant filename |
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221 missing = pack.getmissing([(b"bar", fakenode)]) |
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222 self.assertEqual(missing, [(b"bar", fakenode)]) |
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223 |
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224 def testAddThrows(self): |
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225 pack = self.createPack() |
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226 |
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227 try: |
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228 pack.add(b'filename', nullid, nullid, nullid, nullid, None) |
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229 self.assertTrue(False, "historypack.add should throw") |
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230 except RuntimeError: |
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231 pass |
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232 |
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233 def testBadVersionThrows(self): |
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234 pack = self.createPack() |
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235 path = pack.path + b'.histpack' |
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236 with open(path, 'rb') as f: |
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237 raw = f.read() |
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238 raw = struct.pack('!B', 255) + raw[1:] |
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239 os.chmod(path, os.stat(path).st_mode | stat.S_IWRITE) |
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240 with open(path, 'wb+') as f: |
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241 f.write(raw) |
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242 |
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243 try: |
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244 pack = historypack.historypack(pack.path) |
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245 self.assertTrue(False, "bad version number should have thrown") |
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246 except RuntimeError: |
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247 pass |
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248 |
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249 def testLargePack(self): |
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250 """Test creating and reading from a large pack with over X entries. |
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251 This causes it to use a 2^16 fanout table instead.""" |
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252 total = basepack.SMALLFANOUTCUTOFF + 1 |
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253 revisions = [] |
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254 for i in pycompat.xrange(total): |
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255 filename = b"foo-%d" % i |
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256 node = self.getFakeHash() |
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257 p1 = self.getFakeHash() |
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258 p2 = self.getFakeHash() |
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259 linknode = self.getFakeHash() |
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260 revisions.append((filename, node, p1, p2, linknode, None)) |
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261 |
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262 pack = self.createPack(revisions) |
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263 self.assertEqual(pack.params.fanoutprefix, basepack.LARGEFANOUTPREFIX) |
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264 |
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265 for filename, node, p1, p2, linknode, copyfrom in revisions: |
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266 actual = pack.getancestors(filename, node)[node] |
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267 self.assertEqual(p1, actual[0]) |
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268 self.assertEqual(p2, actual[1]) |
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269 self.assertEqual(linknode, actual[2]) |
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270 self.assertEqual(copyfrom, actual[3]) |
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271 # TODO: |
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272 # histpack store: |
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273 # - repack two packs into one |
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274 |
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275 if __name__ == '__main__': |
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276 if pycompat.iswindows: |
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277 sys.exit(80) # Skip on Windows |
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278 silenttestrunner.main(__name__) |