Mercurial > hg
annotate tests/test-linelog.py @ 39232:0a5b20c107a6
repository: remove storedeltachains from ifilestorage
The ifilestorage interface was bootstrapped from requirements of
callers outside the storage implementation (revlogs). I believe we
even made some members public so they could be part of the interface!
Historically, the changegroup code was a gross offender when it
came to accessing low-level storage primitives. There are a handful
of members on the ifilestorage interface that are/were used only
for changegroup code.
With the recent refactor of changegroup code and the establishment
of a formal API on the storage interface for producing revision
deltas, the changegroup code is no longer accessing these low-level
primitives related to delta generation directly. Instead, things
are abstracted away in the storage implementation.
This means we can remove elements from the storage interface that
are no longer needed.
We start with "storedeltachains."
We remove it from the interface. Then we make it a private
attribute and update all references.
.. api:: storedeltachains has been dropped from ifilestorage interface
.. api:: storedeltachains on revlog classes is now _storedeltachains
Differential Revision: https://phab.mercurial-scm.org/D4227
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Thu, 09 Aug 2018 16:11:24 -0700 |
parents | 27a54096c92e |
children | 876494fd967d |
rev | line source |
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1 from __future__ import absolute_import, print_function |
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2 |
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3 import difflib |
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4 import random |
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5 import unittest |
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6 |
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7 from mercurial import linelog |
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8 |
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9 vecratio = 3 # number of replacelines / number of replacelines_vec |
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10 maxlinenum = 0xffffff |
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11 maxb1 = 0xffffff |
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12 maxdeltaa = 10 |
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13 maxdeltab = 10 |
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14 |
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15 def _genedits(seed, endrev): |
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16 lines = [] |
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17 random.seed(seed) |
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18 rev = 0 |
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19 for rev in range(0, endrev): |
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20 n = len(lines) |
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21 a1 = random.randint(0, n) |
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22 a2 = random.randint(a1, min(n, a1 + maxdeltaa)) |
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23 b1 = random.randint(0, maxb1) |
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24 b2 = random.randint(b1, b1 + maxdeltab) |
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25 usevec = not bool(random.randint(0, vecratio)) |
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26 if usevec: |
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27 blines = [(random.randint(0, rev), random.randint(0, maxlinenum)) |
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28 for _ in range(b1, b2)] |
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29 else: |
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30 blines = [(rev, bidx) for bidx in range(b1, b2)] |
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31 lines[a1:a2] = blines |
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32 yield lines, rev, a1, a2, b1, b2, blines, usevec |
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33 |
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34 class linelogtests(unittest.TestCase): |
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35 def testlinelogencodedecode(self): |
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36 program = [linelog._eof(0, 0), |
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37 linelog._jge(41, 42), |
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38 linelog._jump(0, 43), |
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39 linelog._eof(0, 0), |
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40 linelog._jl(44, 45), |
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41 linelog._line(46, 47), |
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42 ] |
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43 ll = linelog.linelog(program, maxrev=100) |
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44 enc = ll.encode() |
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45 # round-trips okay |
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46 self.assertEqual(linelog.linelog.fromdata(enc)._program, ll._program) |
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47 self.assertEqual(linelog.linelog.fromdata(enc), ll) |
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48 # This encoding matches the encoding used by hg-experimental's |
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49 # linelog file, or is supposed to if it doesn't. |
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50 self.assertEqual(enc, (b'\x00\x00\x01\x90\x00\x00\x00\x06' |
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51 b'\x00\x00\x00\xa4\x00\x00\x00*' |
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52 b'\x00\x00\x00\x00\x00\x00\x00+' |
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53 b'\x00\x00\x00\x00\x00\x00\x00\x00' |
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54 b'\x00\x00\x00\xb1\x00\x00\x00-' |
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55 b'\x00\x00\x00\xba\x00\x00\x00/')) |
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56 |
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57 def testsimpleedits(self): |
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58 ll = linelog.linelog() |
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59 # Initial revision: add lines 0, 1, and 2 |
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60 ll.replacelines(1, 0, 0, 0, 3) |
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61 self.assertEqual([(l.rev, l.linenum) for l in ll.annotate(1)], |
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62 [(1, 0), |
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63 (1, 1), |
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64 (1, 2), |
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65 ]) |
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66 # Replace line 1 with a new line |
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67 ll.replacelines(2, 1, 2, 1, 2) |
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68 self.assertEqual([(l.rev, l.linenum) for l in ll.annotate(2)], |
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69 [(1, 0), |
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70 (2, 1), |
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71 (1, 2), |
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72 ]) |
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73 # delete a line out of 2 |
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74 ll.replacelines(3, 1, 2, 0, 0) |
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75 self.assertEqual([(l.rev, l.linenum) for l in ll.annotate(3)], |
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76 [(1, 0), |
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77 (1, 2), |
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78 ]) |
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79 # annotation of 1 is unchanged |
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80 self.assertEqual([(l.rev, l.linenum) for l in ll.annotate(1)], |
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81 [(1, 0), |
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82 (1, 1), |
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83 (1, 2), |
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84 ]) |
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85 ll.annotate(3) # set internal state to revision 3 |
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86 start = ll.getoffset(0) |
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87 end = ll.getoffset(1) |
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88 self.assertEqual(ll.getalllines(start, end), [ |
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89 (1, 0), |
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90 (2, 1), |
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91 (1, 1), |
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92 ]) |
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93 self.assertEqual(ll.getalllines(), [ |
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94 (1, 0), |
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95 (2, 1), |
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96 (1, 1), |
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97 (1, 2), |
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98 ]) |
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99 |
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100 def testparseclinelogfile(self): |
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101 # This data is what the replacements in testsimpleedits |
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102 # produce when fed to the original linelog.c implementation. |
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103 data = (b'\x00\x00\x00\x0c\x00\x00\x00\x0f' |
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104 b'\x00\x00\x00\x00\x00\x00\x00\x02' |
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105 b'\x00\x00\x00\x05\x00\x00\x00\x06' |
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106 b'\x00\x00\x00\x06\x00\x00\x00\x00' |
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107 b'\x00\x00\x00\x00\x00\x00\x00\x07' |
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108 b'\x00\x00\x00\x06\x00\x00\x00\x02' |
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109 b'\x00\x00\x00\x00\x00\x00\x00\x00' |
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110 b'\x00\x00\x00\t\x00\x00\x00\t' |
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111 b'\x00\x00\x00\x00\x00\x00\x00\x0c' |
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112 b'\x00\x00\x00\x08\x00\x00\x00\x05' |
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113 b'\x00\x00\x00\x06\x00\x00\x00\x01' |
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114 b'\x00\x00\x00\x00\x00\x00\x00\x05' |
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115 b'\x00\x00\x00\x0c\x00\x00\x00\x05' |
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116 b'\x00\x00\x00\n\x00\x00\x00\x01' |
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117 b'\x00\x00\x00\x00\x00\x00\x00\t') |
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118 llc = linelog.linelog.fromdata(data) |
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119 self.assertEqual([(l.rev, l.linenum) for l in llc.annotate(1)], |
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120 [(1, 0), |
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121 (1, 1), |
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122 (1, 2), |
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123 ]) |
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124 self.assertEqual([(l.rev, l.linenum) for l in llc.annotate(2)], |
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125 [(1, 0), |
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126 (2, 1), |
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127 (1, 2), |
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128 ]) |
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129 self.assertEqual([(l.rev, l.linenum) for l in llc.annotate(3)], |
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130 [(1, 0), |
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131 (1, 2), |
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132 ]) |
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133 # Check we emit the same bytecode. |
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134 ll = linelog.linelog() |
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135 # Initial revision: add lines 0, 1, and 2 |
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136 ll.replacelines(1, 0, 0, 0, 3) |
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137 # Replace line 1 with a new line |
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138 ll.replacelines(2, 1, 2, 1, 2) |
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139 # delete a line out of 2 |
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140 ll.replacelines(3, 1, 2, 0, 0) |
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141 diff = '\n ' + '\n '.join(difflib.unified_diff( |
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142 ll.debugstr().splitlines(), llc.debugstr().splitlines(), |
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143 'python', 'c', lineterm='')) |
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144 self.assertEqual(ll._program, llc._program, 'Program mismatch: ' + diff) |
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145 # Done as a secondary step so we get a better result if the |
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146 # program is where the mismatch is. |
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147 self.assertEqual(ll, llc) |
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148 self.assertEqual(ll.encode(), data) |
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149 |
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150 def testanothersimplecase(self): |
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151 ll = linelog.linelog() |
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152 ll.replacelines(3, 0, 0, 0, 2) |
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153 ll.replacelines(4, 0, 2, 0, 0) |
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154 self.assertEqual([(l.rev, l.linenum) for l in ll.annotate(4)], |
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155 []) |
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156 self.assertEqual([(l.rev, l.linenum) for l in ll.annotate(3)], |
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157 [(3, 0), (3, 1)]) |
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158 # rev 2 is empty because contents were only ever introduced in rev 3 |
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159 self.assertEqual([(l.rev, l.linenum) for l in ll.annotate(2)], |
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160 []) |
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161 |
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162 def testrandomedits(self): |
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163 # Inspired by original linelog tests. |
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164 seed = random.random() |
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165 numrevs = 2000 |
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166 ll = linelog.linelog() |
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167 # Populate linelog |
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168 for lines, rev, a1, a2, b1, b2, blines, usevec in _genedits( |
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169 seed, numrevs): |
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170 if usevec: |
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171 ll.replacelines_vec(rev, a1, a2, blines) |
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172 else: |
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173 ll.replacelines(rev, a1, a2, b1, b2) |
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174 ar = ll.annotate(rev) |
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175 self.assertEqual(ll.annotateresult, lines) |
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176 # Verify we can get back these states by annotating each rev |
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177 for lines, rev, a1, a2, b1, b2, blines, usevec in _genedits( |
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178 seed, numrevs): |
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179 ar = ll.annotate(rev) |
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180 self.assertEqual([(l.rev, l.linenum) for l in ar], lines) |
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181 |
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182 def testinfinitebadprogram(self): |
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183 ll = linelog.linelog.fromdata( |
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184 b'\x00\x00\x00\x00\x00\x00\x00\x02' # header |
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185 b'\x00\x00\x00\x00\x00\x00\x00\x01' # JUMP to self |
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186 ) |
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187 with self.assertRaises(linelog.LineLogError): |
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188 # should not be an infinite loop and raise |
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189 ll.annotate(1) |
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190 |
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191 if __name__ == '__main__': |
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192 import silenttestrunner |
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193 silenttestrunner.main(__name__) |