Mercurial > hg
annotate tests/test-simplemerge.py @ 6025:f2335246e5c7
filemerge: wrap quotes around tool path
author | Steve Borho <steve@borho.org> |
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date | Mon, 04 Feb 2008 19:38:34 -0600 |
parents | abd66eb0889e |
children | e75aab656f46 |
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, 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 |