Mercurial > hg > mercurial-crew-with-dirclash
annotate tests/test-simplemerge.py @ 5390:36c46e20976a
merge: provide *_ISLINK environment vars to merge helper
Sets HG_MY_ISLINK, HG_OTHER_ISLINK, HG_BASE_ISLINK in environment. Without these variables, it's impossible for the merge application to know whether the 'other' and 'base' files were symlinks in their original contexts. For the purposes of the merge they are always emitted as small text files.
author | Patrick Mezard <pmezard@gmail.com> |
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date | Wed, 03 Oct 2007 23:09:36 +0200 |
parents | ff7253a0d1da |
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rev | line source |
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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 |
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23 |
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24 # copy simplemerge to the cwd to avoid creating a .pyc file in the source tree |
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25 shutil.copyfile(os.path.join(os.environ['TESTDIR'], os.path.pardir, |
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26 'contrib', 'simplemerge'), |
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27 'simplemerge.py') |
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28 simplemerge = imp.load_source('simplemerge', 'simplemerge.py') |
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29 Merge3 = simplemerge.Merge3 |
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30 CantReprocessAndShowBase = simplemerge.CantReprocessAndShowBase |
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31 |
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32 def split_lines(t): |
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33 from cStringIO import StringIO |
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34 return StringIO(t).readlines() |
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35 |
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36 ############################################################ |
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37 # test case data from the gnu diffutils manual |
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38 # common base |
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39 TZU = split_lines(""" The Nameless is the origin of Heaven and Earth; |
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40 The named is the mother of all things. |
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41 |
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42 Therefore let there always be non-being, |
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43 so we may see their subtlety, |
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44 And let there always be being, |
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45 so we may see their outcome. |
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46 The two are the same, |
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47 But after they are produced, |
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48 they have different names. |
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49 They both may be called deep and profound. |
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50 Deeper and more profound, |
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51 The door of all subtleties! |
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52 """) |
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53 |
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54 LAO = split_lines(""" The Way that can be told of is not the eternal Way; |
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55 The name that can be named is not the eternal name. |
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56 The Nameless is the origin of Heaven and Earth; |
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57 The Named is the mother of all things. |
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58 Therefore let there always be non-being, |
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59 so we may see their subtlety, |
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60 And let there always be being, |
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61 so we may see their outcome. |
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62 The two are the same, |
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63 But after they are produced, |
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64 they have different names. |
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65 """) |
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66 |
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67 |
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68 TAO = split_lines(""" The Way that can be told of is not the eternal Way; |
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69 The name that can be named is not the eternal name. |
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70 The Nameless is the origin of Heaven and Earth; |
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71 The named is the mother of all things. |
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72 |
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73 Therefore let there always be non-being, |
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74 so we may see their subtlety, |
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75 And let there always be being, |
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76 so we may see their result. |
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77 The two are the same, |
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78 But after they are produced, |
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79 they have different names. |
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80 |
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81 -- The Way of Lao-Tzu, tr. Wing-tsit Chan |
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82 |
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83 """) |
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84 |
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85 MERGED_RESULT = split_lines(""" The Way that can be told of is not the eternal Way; |
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86 The name that can be named is not the eternal name. |
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87 The Nameless is the origin of Heaven and Earth; |
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88 The Named is the mother of all things. |
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89 Therefore let there always be non-being, |
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90 so we may see their subtlety, |
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91 And let there always be being, |
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92 so we may see their result. |
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93 The two are the same, |
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94 But after they are produced, |
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95 they have different names. |
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96 <<<<<<< LAO |
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97 ======= |
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98 |
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99 -- The Way of Lao-Tzu, tr. Wing-tsit Chan |
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100 |
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101 >>>>>>> TAO |
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102 """) |
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103 |
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104 class TestMerge3(TestCase): |
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105 def log(self, msg): |
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106 pass |
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107 |
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108 def test_no_changes(self): |
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109 """No conflicts because nothing changed""" |
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110 m3 = Merge3(['aaa', 'bbb'], |
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111 ['aaa', 'bbb'], |
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112 ['aaa', 'bbb']) |
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113 |
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114 self.assertEquals(m3.find_unconflicted(), |
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115 [(0, 2)]) |
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116 |
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117 self.assertEquals(list(m3.find_sync_regions()), |
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118 [(0, 2, |
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119 0, 2, |
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120 0, 2), |
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121 (2,2, 2,2, 2,2)]) |
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122 |
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123 self.assertEquals(list(m3.merge_regions()), |
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124 [('unchanged', 0, 2)]) |
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125 |
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126 self.assertEquals(list(m3.merge_groups()), |
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127 [('unchanged', ['aaa', 'bbb'])]) |
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128 |
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129 def test_front_insert(self): |
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130 m3 = Merge3(['zz'], |
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131 ['aaa', 'bbb', 'zz'], |
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132 ['zz']) |
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133 |
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134 # todo: should use a sentinal at end as from get_matching_blocks |
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135 # to match without zz |
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136 self.assertEquals(list(m3.find_sync_regions()), |
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137 [(0,1, 2,3, 0,1), |
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138 (1,1, 3,3, 1,1),]) |
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139 |
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140 self.assertEquals(list(m3.merge_regions()), |
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141 [('a', 0, 2), |
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142 ('unchanged', 0, 1)]) |
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143 |
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144 self.assertEquals(list(m3.merge_groups()), |
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145 [('a', ['aaa', 'bbb']), |
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146 ('unchanged', ['zz'])]) |
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147 |
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148 def test_null_insert(self): |
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149 m3 = Merge3([], |
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150 ['aaa', 'bbb'], |
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151 []) |
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152 # todo: should use a sentinal at end as from get_matching_blocks |
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153 # to match without zz |
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154 self.assertEquals(list(m3.find_sync_regions()), |
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155 [(0,0, 2,2, 0,0)]) |
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156 |
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157 self.assertEquals(list(m3.merge_regions()), |
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158 [('a', 0, 2)]) |
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159 |
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160 self.assertEquals(list(m3.merge_lines()), |
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161 ['aaa', 'bbb']) |
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162 |
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163 def test_no_conflicts(self): |
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164 """No conflicts because only one side changed""" |
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165 m3 = Merge3(['aaa', 'bbb'], |
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166 ['aaa', '111', 'bbb'], |
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167 ['aaa', 'bbb']) |
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168 |
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169 self.assertEquals(m3.find_unconflicted(), |
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170 [(0, 1), (1, 2)]) |
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171 |
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172 self.assertEquals(list(m3.find_sync_regions()), |
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173 [(0,1, 0,1, 0,1), |
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174 (1,2, 2,3, 1,2), |
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175 (2,2, 3,3, 2,2),]) |
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176 |
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177 self.assertEquals(list(m3.merge_regions()), |
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178 [('unchanged', 0, 1), |
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179 ('a', 1, 2), |
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180 ('unchanged', 1, 2),]) |
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181 |
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182 def test_append_a(self): |
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183 m3 = Merge3(['aaa\n', 'bbb\n'], |
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184 ['aaa\n', 'bbb\n', '222\n'], |
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185 ['aaa\n', 'bbb\n']) |
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186 |
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187 self.assertEquals(''.join(m3.merge_lines()), |
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188 'aaa\nbbb\n222\n') |
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189 |
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190 def test_append_b(self): |
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191 m3 = Merge3(['aaa\n', 'bbb\n'], |
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192 ['aaa\n', 'bbb\n'], |
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193 ['aaa\n', 'bbb\n', '222\n']) |
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194 |
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195 self.assertEquals(''.join(m3.merge_lines()), |
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196 'aaa\nbbb\n222\n') |
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197 |
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198 def test_append_agreement(self): |
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199 m3 = Merge3(['aaa\n', 'bbb\n'], |
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200 ['aaa\n', 'bbb\n', '222\n'], |
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201 ['aaa\n', 'bbb\n', '222\n']) |
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202 |
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203 self.assertEquals(''.join(m3.merge_lines()), |
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204 'aaa\nbbb\n222\n') |
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205 |
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206 def test_append_clash(self): |
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207 m3 = Merge3(['aaa\n', 'bbb\n'], |
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208 ['aaa\n', 'bbb\n', '222\n'], |
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209 ['aaa\n', 'bbb\n', '333\n']) |
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210 |
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211 ml = m3.merge_lines(name_a='a', |
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212 name_b='b', |
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213 start_marker='<<', |
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214 mid_marker='--', |
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215 end_marker='>>') |
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216 self.assertEquals(''.join(ml), |
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217 'aaa\n' |
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218 'bbb\n' |
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219 '<< a\n' |
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220 '222\n' |
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221 '--\n' |
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222 '333\n' |
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223 '>> b\n' |
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224 ) |
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225 |
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226 def test_insert_agreement(self): |
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227 m3 = Merge3(['aaa\n', 'bbb\n'], |
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228 ['aaa\n', '222\n', 'bbb\n'], |
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229 ['aaa\n', '222\n', 'bbb\n']) |
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230 |
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231 ml = m3.merge_lines(name_a='a', |
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232 name_b='b', |
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233 start_marker='<<', |
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234 mid_marker='--', |
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235 end_marker='>>') |
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236 self.assertEquals(''.join(ml), 'aaa\n222\nbbb\n') |
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237 |
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238 |
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239 def test_insert_clash(self): |
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240 """Both try to insert lines in the same place.""" |
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241 m3 = Merge3(['aaa\n', 'bbb\n'], |
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242 ['aaa\n', '111\n', 'bbb\n'], |
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243 ['aaa\n', '222\n', 'bbb\n']) |
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244 |
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245 self.assertEquals(m3.find_unconflicted(), |
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246 [(0, 1), (1, 2)]) |
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247 |
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248 self.assertEquals(list(m3.find_sync_regions()), |
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249 [(0,1, 0,1, 0,1), |
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250 (1,2, 2,3, 2,3), |
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251 (2,2, 3,3, 3,3),]) |
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252 |
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253 self.assertEquals(list(m3.merge_regions()), |
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254 [('unchanged', 0,1), |
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255 ('conflict', 1,1, 1,2, 1,2), |
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256 ('unchanged', 1,2)]) |
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257 |
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258 self.assertEquals(list(m3.merge_groups()), |
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259 [('unchanged', ['aaa\n']), |
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260 ('conflict', [], ['111\n'], ['222\n']), |
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261 ('unchanged', ['bbb\n']), |
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262 ]) |
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263 |
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264 ml = m3.merge_lines(name_a='a', |
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265 name_b='b', |
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266 start_marker='<<', |
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267 mid_marker='--', |
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268 end_marker='>>') |
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269 self.assertEquals(''.join(ml), |
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270 '''aaa |
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271 << a |
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272 111 |
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273 -- |
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274 222 |
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275 >> b |
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276 bbb |
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277 ''') |
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278 |
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279 def test_replace_clash(self): |
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280 """Both try to insert lines in the same place.""" |
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281 m3 = Merge3(['aaa', '000', 'bbb'], |
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282 ['aaa', '111', 'bbb'], |
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283 ['aaa', '222', 'bbb']) |
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284 |
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285 self.assertEquals(m3.find_unconflicted(), |
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286 [(0, 1), (2, 3)]) |
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287 |
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288 self.assertEquals(list(m3.find_sync_regions()), |
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289 [(0,1, 0,1, 0,1), |
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290 (2,3, 2,3, 2,3), |
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291 (3,3, 3,3, 3,3),]) |
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292 |
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293 def test_replace_multi(self): |
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294 """Replacement with regions of different size.""" |
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295 m3 = Merge3(['aaa', '000', '000', 'bbb'], |
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296 ['aaa', '111', '111', '111', 'bbb'], |
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297 ['aaa', '222', '222', '222', '222', 'bbb']) |
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298 |
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299 self.assertEquals(m3.find_unconflicted(), |
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300 [(0, 1), (3, 4)]) |
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301 |
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302 |
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303 self.assertEquals(list(m3.find_sync_regions()), |
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304 [(0,1, 0,1, 0,1), |
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305 (3,4, 4,5, 5,6), |
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306 (4,4, 5,5, 6,6),]) |
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307 |
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308 def test_merge_poem(self): |
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309 """Test case from diff3 manual""" |
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310 m3 = Merge3(TZU, LAO, TAO) |
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311 ml = list(m3.merge_lines('LAO', 'TAO')) |
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312 self.log('merge result:') |
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313 self.log(''.join(ml)) |
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314 self.assertEquals(ml, MERGED_RESULT) |
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315 |
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316 def test_minimal_conflicts_common(self): |
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317 """Reprocessing""" |
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318 base_text = ("a\n" * 20).splitlines(True) |
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319 this_text = ("a\n"*10+"b\n" * 10).splitlines(True) |
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320 other_text = ("a\n"*10+"c\n"+"b\n" * 8 + "c\n").splitlines(True) |
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321 m3 = Merge3(base_text, other_text, this_text) |
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322 m_lines = m3.merge_lines('OTHER', 'THIS', reprocess=True) |
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323 merged_text = "".join(list(m_lines)) |
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324 optimal_text = ("a\n" * 10 + "<<<<<<< OTHER\nc\n=======\n" |
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325 + ">>>>>>> THIS\n" |
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326 + 8* "b\n" + "<<<<<<< OTHER\nc\n=======\n" |
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327 + 2* "b\n" + ">>>>>>> THIS\n") |
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328 self.assertEquals(optimal_text, merged_text) |
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329 |
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330 def test_minimal_conflicts_unique(self): |
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331 def add_newline(s): |
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332 """Add a newline to each entry in the string""" |
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333 return [(x+'\n') for x in s] |
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334 |
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335 base_text = add_newline("abcdefghijklm") |
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336 this_text = add_newline("abcdefghijklmNOPQRSTUVWXYZ") |
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337 other_text = add_newline("abcdefghijklm1OPQRSTUVWXY2") |
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338 m3 = Merge3(base_text, other_text, this_text) |
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339 m_lines = m3.merge_lines('OTHER', 'THIS', reprocess=True) |
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340 merged_text = "".join(list(m_lines)) |
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341 optimal_text = ''.join(add_newline("abcdefghijklm") |
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342 + ["<<<<<<< OTHER\n1\n=======\nN\n>>>>>>> THIS\n"] |
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343 + add_newline('OPQRSTUVWXY') |
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344 + ["<<<<<<< OTHER\n2\n=======\nZ\n>>>>>>> THIS\n"] |
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345 ) |
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346 self.assertEquals(optimal_text, merged_text) |
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347 |
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348 def test_minimal_conflicts_nonunique(self): |
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349 def add_newline(s): |
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350 """Add a newline to each entry in the string""" |
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351 return [(x+'\n') for x in s] |
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352 |
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353 base_text = add_newline("abacddefgghij") |
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354 this_text = add_newline("abacddefgghijkalmontfprz") |
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355 other_text = add_newline("abacddefgghijknlmontfprd") |
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356 m3 = Merge3(base_text, other_text, this_text) |
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357 m_lines = m3.merge_lines('OTHER', 'THIS', reprocess=True) |
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358 merged_text = "".join(list(m_lines)) |
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359 optimal_text = ''.join(add_newline("abacddefgghijk") |
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360 + ["<<<<<<< OTHER\nn\n=======\na\n>>>>>>> THIS\n"] |
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361 + add_newline('lmontfpr') |
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362 + ["<<<<<<< OTHER\nd\n=======\nz\n>>>>>>> THIS\n"] |
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363 ) |
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364 self.assertEquals(optimal_text, merged_text) |
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365 |
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366 def test_reprocess_and_base(self): |
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367 """Reprocessing and showing base breaks correctly""" |
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368 base_text = ("a\n" * 20).splitlines(True) |
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369 this_text = ("a\n"*10+"b\n" * 10).splitlines(True) |
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370 other_text = ("a\n"*10+"c\n"+"b\n" * 8 + "c\n").splitlines(True) |
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371 m3 = Merge3(base_text, other_text, this_text) |
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372 m_lines = m3.merge_lines('OTHER', 'THIS', reprocess=True, |
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373 base_marker='|||||||') |
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374 self.assertRaises(CantReprocessAndShowBase, list, m_lines) |
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375 |
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376 def test_binary(self): |
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377 self.assertRaises(util.Abort, Merge3, ['\x00'], ['a'], ['b']) |
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378 |
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379 def test_dos_text(self): |
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380 base_text = 'a\r\n' |
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381 this_text = 'b\r\n' |
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382 other_text = 'c\r\n' |
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383 m3 = Merge3(base_text.splitlines(True), other_text.splitlines(True), |
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384 this_text.splitlines(True)) |
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385 m_lines = m3.merge_lines('OTHER', 'THIS') |
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386 self.assertEqual('<<<<<<< OTHER\r\nc\r\n=======\r\nb\r\n' |
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387 '>>>>>>> THIS\r\n'.splitlines(True), list(m_lines)) |
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388 |
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389 def test_mac_text(self): |
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390 base_text = 'a\r' |
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391 this_text = 'b\r' |
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392 other_text = 'c\r' |
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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\rc\r=======\rb\r' |
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397 '>>>>>>> THIS\r'.splitlines(True), list(m_lines)) |
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398 |
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399 if __name__ == '__main__': |
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400 # hide the timer |
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401 import time |
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402 orig = time.time |
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403 try: |
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404 time.time = lambda: 0 |
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405 unittest.main() |
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406 finally: |
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407 time.time = orig |
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408 |