Mercurial > hg > mercurial-crew-with-dirclash
annotate tests/test-simplemerge.py @ 5234:20770c5d41e0
Merge with crew-stable
author | Patrick Mezard <pmezard@gmail.com> |
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date | Sun, 26 Aug 2007 19:13:24 +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 |