Mercurial > hg
annotate tests/test-simplemerge.py @ 6109:242595e612ed
revert: unify forget and remove lists
This doesn't make a difference right now, but after the next revision
some files in state 'a' may end up in the deleted list, and revert
won't be able to just remove all files in that list.
author | Alexis S. L. Carvalho <alexis@cecm.usp.br> |
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date | Thu, 14 Feb 2008 18:08:16 -0200 |
parents | abd66eb0889e |
children | e75aab656f46 |
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1 # Copyright (C) 2004, 2005 Canonical Ltd |
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2 # |
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3 # This program is free software; you can redistribute it and/or modify |
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4 # it under the terms of the GNU General Public License as published by |
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5 # the Free Software Foundation; either version 2 of the License, or |
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6 # (at your option) any later version. |
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7 # |
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8 # This program is distributed in the hope that it will be useful, |
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9 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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11 # GNU General Public License for more details. |
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12 # |
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13 # You should have received a copy of the GNU General Public License |
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14 # along with this program; if not, write to the Free Software |
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15 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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16 |
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17 import os |
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18 import unittest |
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19 from unittest import TestCase |
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20 import imp |
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21 import shutil |
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22 from mercurial import util, simplemerge |
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23 |
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24 # bzr compatible interface, for the tests |
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25 class Merge3(simplemerge.Merge3Text): |
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26 """3-way merge of texts. |
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27 |
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28 Given BASE, OTHER, THIS, tries to produce a combined text |
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29 incorporating the changes from both BASE->OTHER and BASE->THIS. |
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30 All three will typically be sequences of lines.""" |
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31 def __init__(self, base, a, b): |
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32 basetext = '\n'.join([i.strip('\n') for i in base] + ['']) |
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33 atext = '\n'.join([i.strip('\n') for i in a] + ['']) |
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34 btext = '\n'.join([i.strip('\n') for i in b] + ['']) |
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35 if util.binary(basetext) or util.binary(atext) or util.binary(btext): |
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36 raise util.Abort("don't know how to merge binary files") |
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37 simplemerge.Merge3Text.__init__(self, basetext, atext, btext, |
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38 base, a, b) |
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39 |
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40 CantReprocessAndShowBase = simplemerge.CantReprocessAndShowBase |
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41 |
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42 def split_lines(t): |
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43 from cStringIO import StringIO |
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44 return StringIO(t).readlines() |
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45 |
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46 ############################################################ |
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47 # test case data from the gnu diffutils manual |
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48 # common base |
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49 TZU = split_lines(""" The Nameless is the origin of Heaven and Earth; |
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50 The named is the mother of all things. |
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51 |
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52 Therefore let there always be non-being, |
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53 so we may see their subtlety, |
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54 And let there always be being, |
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55 so we may see their outcome. |
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56 The two are the same, |
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57 But after they are produced, |
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58 they have different names. |
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59 They both may be called deep and profound. |
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60 Deeper and more profound, |
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61 The door of all subtleties! |
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62 """) |
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63 |
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64 LAO = split_lines(""" The Way that can be told of is not the eternal Way; |
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65 The name that can be named is not the eternal name. |
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66 The Nameless is the origin of Heaven and Earth; |
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67 The Named is the mother of all things. |
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68 Therefore let there always be non-being, |
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69 so we may see their subtlety, |
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70 And let there always be being, |
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71 so we may see their outcome. |
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72 The two are the same, |
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73 But after they are produced, |
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74 they have different names. |
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75 """) |
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76 |
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77 |
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78 TAO = split_lines(""" The Way that can be told of is not the eternal Way; |
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79 The name that can be named is not the eternal name. |
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80 The Nameless is the origin of Heaven and Earth; |
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81 The named is the mother of all things. |
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82 |
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83 Therefore let there always be non-being, |
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84 so we may see their subtlety, |
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85 And let there always be being, |
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86 so we may see their result. |
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87 The two are the same, |
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88 But after they are produced, |
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89 they have different names. |
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90 |
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91 -- The Way of Lao-Tzu, tr. Wing-tsit Chan |
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92 |
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93 """) |
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94 |
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95 MERGED_RESULT = split_lines(""" The Way that can be told of is not the eternal Way; |
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96 The name that can be named is not the eternal name. |
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97 The Nameless is the origin of Heaven and Earth; |
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98 The Named is the mother of all things. |
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99 Therefore let there always be non-being, |
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100 so we may see their subtlety, |
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101 And let there always be being, |
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102 so we may see their result. |
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103 The two are the same, |
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104 But after they are produced, |
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105 they have different names. |
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106 <<<<<<< LAO |
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107 ======= |
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108 |
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109 -- The Way of Lao-Tzu, tr. Wing-tsit Chan |
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110 |
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111 >>>>>>> TAO |
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112 """) |
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113 |
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114 class TestMerge3(TestCase): |
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115 def log(self, msg): |
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116 pass |
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117 |
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118 def test_no_changes(self): |
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119 """No conflicts because nothing changed""" |
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120 m3 = Merge3(['aaa', 'bbb'], |
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121 ['aaa', 'bbb'], |
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122 ['aaa', 'bbb']) |
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123 |
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124 self.assertEquals(m3.find_unconflicted(), |
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125 [(0, 2)]) |
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126 |
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127 self.assertEquals(list(m3.find_sync_regions()), |
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128 [(0, 2, |
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129 0, 2, |
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130 0, 2), |
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131 (2,2, 2,2, 2,2)]) |
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132 |
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133 self.assertEquals(list(m3.merge_regions()), |
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134 [('unchanged', 0, 2)]) |
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135 |
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136 self.assertEquals(list(m3.merge_groups()), |
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137 [('unchanged', ['aaa', 'bbb'])]) |
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138 |
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139 def test_front_insert(self): |
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140 m3 = Merge3(['zz'], |
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141 ['aaa', 'bbb', 'zz'], |
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142 ['zz']) |
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143 |
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144 # todo: should use a sentinal at end as from get_matching_blocks |
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145 # to match without zz |
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146 self.assertEquals(list(m3.find_sync_regions()), |
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147 [(0,1, 2,3, 0,1), |
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148 (1,1, 3,3, 1,1),]) |
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149 |
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150 self.assertEquals(list(m3.merge_regions()), |
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151 [('a', 0, 2), |
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152 ('unchanged', 0, 1)]) |
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153 |
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154 self.assertEquals(list(m3.merge_groups()), |
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155 [('a', ['aaa', 'bbb']), |
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156 ('unchanged', ['zz'])]) |
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157 |
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158 def test_null_insert(self): |
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159 m3 = Merge3([], |
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160 ['aaa', 'bbb'], |
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161 []) |
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162 # todo: should use a sentinal at end as from get_matching_blocks |
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163 # to match without zz |
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164 self.assertEquals(list(m3.find_sync_regions()), |
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165 [(0,0, 2,2, 0,0)]) |
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166 |
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167 self.assertEquals(list(m3.merge_regions()), |
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168 [('a', 0, 2)]) |
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169 |
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170 self.assertEquals(list(m3.merge_lines()), |
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171 ['aaa', 'bbb']) |
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172 |
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173 def test_no_conflicts(self): |
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174 """No conflicts because only one side changed""" |
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175 m3 = Merge3(['aaa', 'bbb'], |
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176 ['aaa', '111', 'bbb'], |
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177 ['aaa', 'bbb']) |
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178 |
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179 self.assertEquals(m3.find_unconflicted(), |
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180 [(0, 1), (1, 2)]) |
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181 |
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182 self.assertEquals(list(m3.find_sync_regions()), |
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183 [(0,1, 0,1, 0,1), |
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184 (1,2, 2,3, 1,2), |
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185 (2,2, 3,3, 2,2),]) |
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186 |
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187 self.assertEquals(list(m3.merge_regions()), |
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188 [('unchanged', 0, 1), |
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189 ('a', 1, 2), |
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190 ('unchanged', 1, 2),]) |
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191 |
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192 def test_append_a(self): |
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193 m3 = Merge3(['aaa\n', 'bbb\n'], |
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194 ['aaa\n', 'bbb\n', '222\n'], |
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195 ['aaa\n', 'bbb\n']) |
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196 |
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197 self.assertEquals(''.join(m3.merge_lines()), |
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198 'aaa\nbbb\n222\n') |
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199 |
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200 def test_append_b(self): |
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201 m3 = Merge3(['aaa\n', 'bbb\n'], |
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202 ['aaa\n', 'bbb\n'], |
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203 ['aaa\n', 'bbb\n', '222\n']) |
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204 |
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205 self.assertEquals(''.join(m3.merge_lines()), |
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206 'aaa\nbbb\n222\n') |
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207 |
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208 def test_append_agreement(self): |
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209 m3 = Merge3(['aaa\n', 'bbb\n'], |
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210 ['aaa\n', 'bbb\n', '222\n'], |
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211 ['aaa\n', 'bbb\n', '222\n']) |
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212 |
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213 self.assertEquals(''.join(m3.merge_lines()), |
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214 'aaa\nbbb\n222\n') |
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215 |
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216 def test_append_clash(self): |
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217 m3 = Merge3(['aaa\n', 'bbb\n'], |
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218 ['aaa\n', 'bbb\n', '222\n'], |
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219 ['aaa\n', 'bbb\n', '333\n']) |
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220 |
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221 ml = m3.merge_lines(name_a='a', |
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222 name_b='b', |
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223 start_marker='<<', |
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224 mid_marker='--', |
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225 end_marker='>>') |
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226 self.assertEquals(''.join(ml), |
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227 'aaa\n' |
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228 'bbb\n' |
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229 '<< a\n' |
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230 '222\n' |
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231 '--\n' |
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232 '333\n' |
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233 '>> b\n' |
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234 ) |
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235 |
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236 def test_insert_agreement(self): |
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237 m3 = Merge3(['aaa\n', 'bbb\n'], |
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238 ['aaa\n', '222\n', 'bbb\n'], |
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239 ['aaa\n', '222\n', 'bbb\n']) |
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240 |
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241 ml = m3.merge_lines(name_a='a', |
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242 name_b='b', |
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243 start_marker='<<', |
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244 mid_marker='--', |
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245 end_marker='>>') |
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246 self.assertEquals(''.join(ml), 'aaa\n222\nbbb\n') |
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247 |
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248 |
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249 def test_insert_clash(self): |
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250 """Both try to insert lines in the same place.""" |
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251 m3 = Merge3(['aaa\n', 'bbb\n'], |
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252 ['aaa\n', '111\n', 'bbb\n'], |
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253 ['aaa\n', '222\n', 'bbb\n']) |
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254 |
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255 self.assertEquals(m3.find_unconflicted(), |
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256 [(0, 1), (1, 2)]) |
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257 |
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258 self.assertEquals(list(m3.find_sync_regions()), |
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259 [(0,1, 0,1, 0,1), |
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260 (1,2, 2,3, 2,3), |
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261 (2,2, 3,3, 3,3),]) |
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262 |
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263 self.assertEquals(list(m3.merge_regions()), |
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264 [('unchanged', 0,1), |
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265 ('conflict', 1,1, 1,2, 1,2), |
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266 ('unchanged', 1,2)]) |
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267 |
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268 self.assertEquals(list(m3.merge_groups()), |
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269 [('unchanged', ['aaa\n']), |
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270 ('conflict', [], ['111\n'], ['222\n']), |
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271 ('unchanged', ['bbb\n']), |
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272 ]) |
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273 |
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274 ml = m3.merge_lines(name_a='a', |
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275 name_b='b', |
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276 start_marker='<<', |
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277 mid_marker='--', |
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278 end_marker='>>') |
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279 self.assertEquals(''.join(ml), |
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280 '''aaa |
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281 << a |
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282 111 |
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283 -- |
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284 222 |
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285 >> b |
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286 bbb |
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287 ''') |
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288 |
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289 def test_replace_clash(self): |
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290 """Both try to insert lines in the same place.""" |
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291 m3 = Merge3(['aaa', '000', 'bbb'], |
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292 ['aaa', '111', 'bbb'], |
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293 ['aaa', '222', 'bbb']) |
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294 |
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295 self.assertEquals(m3.find_unconflicted(), |
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296 [(0, 1), (2, 3)]) |
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297 |
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298 self.assertEquals(list(m3.find_sync_regions()), |
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299 [(0,1, 0,1, 0,1), |
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300 (2,3, 2,3, 2,3), |
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301 (3,3, 3,3, 3,3),]) |
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302 |
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303 def test_replace_multi(self): |
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304 """Replacement with regions of different size.""" |
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305 m3 = Merge3(['aaa', '000', '000', 'bbb'], |
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306 ['aaa', '111', '111', '111', 'bbb'], |
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307 ['aaa', '222', '222', '222', '222', 'bbb']) |
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308 |
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309 self.assertEquals(m3.find_unconflicted(), |
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310 [(0, 1), (3, 4)]) |
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311 |
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312 |
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313 self.assertEquals(list(m3.find_sync_regions()), |
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314 [(0,1, 0,1, 0,1), |
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315 (3,4, 4,5, 5,6), |
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316 (4,4, 5,5, 6,6),]) |
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317 |
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318 def test_merge_poem(self): |
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319 """Test case from diff3 manual""" |
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320 m3 = Merge3(TZU, LAO, TAO) |
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321 ml = list(m3.merge_lines('LAO', 'TAO')) |
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322 self.log('merge result:') |
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323 self.log(''.join(ml)) |
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324 self.assertEquals(ml, MERGED_RESULT) |
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325 |
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326 def test_minimal_conflicts_common(self): |
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327 """Reprocessing""" |
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328 base_text = ("a\n" * 20).splitlines(True) |
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329 this_text = ("a\n"*10+"b\n" * 10).splitlines(True) |
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330 other_text = ("a\n"*10+"c\n"+"b\n" * 8 + "c\n").splitlines(True) |
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331 m3 = Merge3(base_text, other_text, this_text) |
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332 m_lines = m3.merge_lines('OTHER', 'THIS', reprocess=True) |
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333 merged_text = "".join(list(m_lines)) |
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334 optimal_text = ("a\n" * 10 + "<<<<<<< OTHER\nc\n=======\n" |
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335 + ">>>>>>> THIS\n" |
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336 + 8* "b\n" + "<<<<<<< OTHER\nc\n=======\n" |
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337 + 2* "b\n" + ">>>>>>> THIS\n") |
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338 self.assertEquals(optimal_text, merged_text) |
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339 |
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340 def test_minimal_conflicts_unique(self): |
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341 def add_newline(s): |
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342 """Add a newline to each entry in the string""" |
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343 return [(x+'\n') for x in s] |
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344 |
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345 base_text = add_newline("abcdefghijklm") |
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346 this_text = add_newline("abcdefghijklmNOPQRSTUVWXYZ") |
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347 other_text = add_newline("abcdefghijklm1OPQRSTUVWXY2") |
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348 m3 = Merge3(base_text, other_text, this_text) |
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349 m_lines = m3.merge_lines('OTHER', 'THIS', reprocess=True) |
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350 merged_text = "".join(list(m_lines)) |
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351 optimal_text = ''.join(add_newline("abcdefghijklm") |
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352 + ["<<<<<<< OTHER\n1\n=======\nN\n>>>>>>> THIS\n"] |
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353 + add_newline('OPQRSTUVWXY') |
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354 + ["<<<<<<< OTHER\n2\n=======\nZ\n>>>>>>> THIS\n"] |
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355 ) |
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356 self.assertEquals(optimal_text, merged_text) |
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357 |
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358 def test_minimal_conflicts_nonunique(self): |
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359 def add_newline(s): |
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360 """Add a newline to each entry in the string""" |
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361 return [(x+'\n') for x in s] |
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362 |
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363 base_text = add_newline("abacddefgghij") |
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364 this_text = add_newline("abacddefgghijkalmontfprz") |
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365 other_text = add_newline("abacddefgghijknlmontfprd") |
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366 m3 = Merge3(base_text, other_text, this_text) |
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367 m_lines = m3.merge_lines('OTHER', 'THIS', reprocess=True) |
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368 merged_text = "".join(list(m_lines)) |
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369 optimal_text = ''.join(add_newline("abacddefgghijk") |
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370 + ["<<<<<<< OTHER\nn\n=======\na\n>>>>>>> THIS\n"] |
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371 + add_newline('lmontfpr') |
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372 + ["<<<<<<< OTHER\nd\n=======\nz\n>>>>>>> THIS\n"] |
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373 ) |
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374 self.assertEquals(optimal_text, merged_text) |
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375 |
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376 def test_reprocess_and_base(self): |
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377 """Reprocessing and showing base breaks correctly""" |
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378 base_text = ("a\n" * 20).splitlines(True) |
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379 this_text = ("a\n"*10+"b\n" * 10).splitlines(True) |
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380 other_text = ("a\n"*10+"c\n"+"b\n" * 8 + "c\n").splitlines(True) |
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381 m3 = Merge3(base_text, other_text, this_text) |
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382 m_lines = m3.merge_lines('OTHER', 'THIS', reprocess=True, |
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383 base_marker='|||||||') |
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384 self.assertRaises(CantReprocessAndShowBase, list, m_lines) |
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385 |
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386 def test_binary(self): |
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387 self.assertRaises(util.Abort, Merge3, ['\x00'], ['a'], ['b']) |
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388 |
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389 def test_dos_text(self): |
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390 base_text = 'a\r\n' |
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391 this_text = 'b\r\n' |
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392 other_text = 'c\r\n' |
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393 m3 = Merge3(base_text.splitlines(True), other_text.splitlines(True), |
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394 this_text.splitlines(True)) |
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395 m_lines = m3.merge_lines('OTHER', 'THIS') |
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396 self.assertEqual('<<<<<<< OTHER\r\nc\r\n=======\r\nb\r\n' |
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397 '>>>>>>> THIS\r\n'.splitlines(True), list(m_lines)) |
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398 |
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399 def test_mac_text(self): |
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400 base_text = 'a\r' |
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401 this_text = 'b\r' |
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402 other_text = 'c\r' |
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403 m3 = Merge3(base_text.splitlines(True), other_text.splitlines(True), |
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404 this_text.splitlines(True)) |
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405 m_lines = m3.merge_lines('OTHER', 'THIS') |
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406 self.assertEqual('<<<<<<< OTHER\rc\r=======\rb\r' |
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407 '>>>>>>> THIS\r'.splitlines(True), list(m_lines)) |
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408 |
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409 if __name__ == '__main__': |
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410 # hide the timer |
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411 import time |
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412 orig = time.time |
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413 try: |
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414 time.time = lambda: 0 |
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415 unittest.main() |
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416 finally: |
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417 time.time = orig |
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418 |