Mercurial > hg
annotate tests/test-fastannotate-revmap.py @ 48875:6000f5b25c9b
py2: remove simple from __future__ statements
These were needed for Python 2 support. Now that our linter no longer
mandates these, we can start deleting them.
Differential Revision: https://phab.mercurial-scm.org/D12254
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Thu, 03 Mar 2022 17:34:00 +0100 |
parents | 9d2b2df2c2ba |
children | 642e31cb55f0 |
rev | line source |
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1 import os |
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2 import tempfile |
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3 |
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4 from mercurial import ( |
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5 pycompat, |
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6 util, |
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7 ) |
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8 |
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9 from hgext.fastannotate import error, revmap |
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10 |
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11 if pycompat.ispy3: |
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12 xrange = range |
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13 |
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14 |
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15 def genhsh(i): |
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16 return pycompat.bytechr(i) + b'\0' * 19 |
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17 |
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18 |
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19 def gettemppath(): |
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20 fd, path = tempfile.mkstemp() |
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21 os.close(fd) |
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22 os.unlink(path) |
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23 return path |
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24 |
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25 |
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26 def ensure(condition): |
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27 if not condition: |
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28 raise RuntimeError('Unexpected') |
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29 |
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30 |
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31 def testbasicreadwrite(): |
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32 path = gettemppath() |
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33 |
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34 rm = revmap.revmap(path) |
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35 ensure(rm.maxrev == 0) |
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36 for i in xrange(5): |
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37 ensure(rm.rev2hsh(i) is None) |
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38 ensure(rm.hsh2rev(b'\0' * 20) is None) |
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39 |
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40 paths = [ |
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41 b'', |
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42 b'a', |
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43 None, |
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44 b'b', |
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45 b'b', |
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46 b'c', |
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47 b'c', |
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48 None, |
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49 b'a', |
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50 b'b', |
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51 b'a', |
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52 b'a', |
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53 ] |
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54 for i in xrange(1, 5): |
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55 ensure(rm.append(genhsh(i), sidebranch=(i & 1), path=paths[i]) == i) |
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56 |
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57 ensure(rm.maxrev == 4) |
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58 for i in xrange(1, 5): |
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59 ensure(rm.hsh2rev(genhsh(i)) == i) |
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60 ensure(rm.rev2hsh(i) == genhsh(i)) |
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61 |
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62 # re-load and verify |
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63 rm.flush() |
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64 rm = revmap.revmap(path) |
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65 ensure(rm.maxrev == 4) |
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66 for i in xrange(1, 5): |
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67 ensure(rm.hsh2rev(genhsh(i)) == i) |
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68 ensure(rm.rev2hsh(i) == genhsh(i)) |
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69 ensure(bool(rm.rev2flag(i) & revmap.sidebranchflag) == bool(i & 1)) |
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70 |
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71 # append without calling save() explicitly |
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72 for i in xrange(5, 12): |
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73 ensure( |
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74 rm.append(genhsh(i), sidebranch=(i & 1), path=paths[i], flush=True) |
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75 == i |
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76 ) |
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77 |
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78 # re-load and verify |
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79 rm = revmap.revmap(path) |
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80 ensure(rm.maxrev == 11) |
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81 for i in xrange(1, 12): |
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82 ensure(rm.hsh2rev(genhsh(i)) == i) |
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83 ensure(rm.rev2hsh(i) == genhsh(i)) |
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84 ensure(rm.rev2path(i) == paths[i] or paths[i - 1]) |
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85 ensure(bool(rm.rev2flag(i) & revmap.sidebranchflag) == bool(i & 1)) |
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86 |
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87 os.unlink(path) |
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88 |
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89 # missing keys |
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90 ensure(rm.rev2hsh(12) is None) |
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91 ensure(rm.rev2hsh(0) is None) |
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92 ensure(rm.rev2hsh(-1) is None) |
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93 ensure(rm.rev2flag(12) is None) |
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94 ensure(rm.rev2path(12) is None) |
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95 ensure(rm.hsh2rev(b'\1' * 20) is None) |
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96 |
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97 # illformed hash (not 20 bytes) |
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98 try: |
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99 rm.append(b'\0') |
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100 ensure(False) |
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101 except Exception: |
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102 pass |
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103 |
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104 |
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105 def testcorruptformat(): |
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106 path = gettemppath() |
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107 |
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108 # incorrect header |
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109 with open(path, 'wb') as f: |
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110 f.write(b'NOT A VALID HEADER') |
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111 try: |
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112 revmap.revmap(path) |
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113 ensure(False) |
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114 except error.CorruptedFileError: |
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115 pass |
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116 |
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117 # rewrite the file |
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118 os.unlink(path) |
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119 rm = revmap.revmap(path) |
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120 rm.append(genhsh(0), flush=True) |
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121 |
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122 rm = revmap.revmap(path) |
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123 ensure(rm.maxrev == 1) |
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124 |
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125 # corrupt the file by appending a byte |
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126 size = os.stat(path).st_size |
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127 with open(path, 'ab') as f: |
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128 f.write(b'\xff') |
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129 try: |
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130 revmap.revmap(path) |
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131 ensure(False) |
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132 except error.CorruptedFileError: |
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133 pass |
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134 |
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135 # corrupt the file by removing the last byte |
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136 ensure(size > 0) |
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137 with open(path, 'wb') as f: |
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138 f.truncate(size - 1) |
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139 try: |
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140 revmap.revmap(path) |
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141 ensure(False) |
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142 except error.CorruptedFileError: |
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143 pass |
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144 |
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145 os.unlink(path) |
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146 |
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147 |
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148 def testcopyfrom(): |
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149 path = gettemppath() |
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150 rm = revmap.revmap(path) |
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151 for i in xrange(1, 10): |
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152 ensure( |
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153 rm.append(genhsh(i), sidebranch=(i & 1), path=(b'%d' % (i // 3))) |
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154 == i |
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155 ) |
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156 rm.flush() |
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157 |
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158 # copy rm to rm2 |
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159 rm2 = revmap.revmap() |
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160 rm2.copyfrom(rm) |
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161 path2 = gettemppath() |
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162 rm2.path = path2 |
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163 rm2.flush() |
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164 |
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165 # two files should be the same |
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166 ensure(len({util.readfile(p) for p in [path, path2]}) == 1) |
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167 |
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168 os.unlink(path) |
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169 os.unlink(path2) |
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170 |
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171 |
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172 class fakefctx(object): |
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173 def __init__(self, node, path=None): |
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174 self._node = node |
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175 self._path = path |
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176 |
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177 def node(self): |
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178 return self._node |
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179 |
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180 def path(self): |
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181 return self._path |
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182 |
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183 |
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184 def testcontains(): |
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185 path = gettemppath() |
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186 |
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187 rm = revmap.revmap(path) |
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188 for i in xrange(1, 5): |
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189 ensure(rm.append(genhsh(i), sidebranch=(i & 1)) == i) |
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190 |
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191 for i in xrange(1, 5): |
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192 ensure(((genhsh(i), None) in rm) == ((i & 1) == 0)) |
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193 ensure((fakefctx(genhsh(i)) in rm) == ((i & 1) == 0)) |
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194 for i in xrange(5, 10): |
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195 ensure(fakefctx(genhsh(i)) not in rm) |
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196 ensure((genhsh(i), None) not in rm) |
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197 |
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198 # "contains" checks paths |
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199 rm = revmap.revmap() |
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200 for i in xrange(1, 5): |
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201 ensure(rm.append(genhsh(i), path=(b'%d' % (i // 2))) == i) |
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202 for i in xrange(1, 5): |
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203 ensure(fakefctx(genhsh(i), path=(b'%d' % (i // 2))) in rm) |
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204 ensure(fakefctx(genhsh(i), path=b'a') not in rm) |
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205 |
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206 |
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207 def testlastnode(): |
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208 path = gettemppath() |
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209 ensure(revmap.getlastnode(path) is None) |
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210 rm = revmap.revmap(path) |
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211 ensure(revmap.getlastnode(path) is None) |
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212 for i in xrange(1, 10): |
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213 hsh = genhsh(i) |
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214 rm.append(hsh, path=(b'%d' % (i // 2)), flush=True) |
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215 ensure(revmap.getlastnode(path) == hsh) |
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216 rm2 = revmap.revmap(path) |
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217 ensure(rm2.rev2hsh(rm2.maxrev) == hsh) |
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218 |
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219 |
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220 testbasicreadwrite() |
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221 testcorruptformat() |
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222 testcopyfrom() |
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223 testcontains() |
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224 testlastnode() |