Mercurial > hg
annotate tests/test-simplemerge.py @ 12515:b6a784e39ad4
tests: unify test-convert-bzr-ghosts
author | Matt Mackall <mpm@selenic.com> |
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date | Sun, 26 Sep 2010 14:36:49 -0500 |
parents | e433002acb05 |
children | 7de7630053cb |
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 unittest |
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18 from unittest import TestCase |
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19 from mercurial import util, simplemerge |
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20 |
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21 # bzr compatible interface, for the tests |
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22 class Merge3(simplemerge.Merge3Text): |
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23 """3-way merge of texts. |
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24 |
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25 Given BASE, OTHER, THIS, tries to produce a combined text |
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26 incorporating the changes from both BASE->OTHER and BASE->THIS. |
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27 All three will typically be sequences of lines.""" |
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28 def __init__(self, base, a, b): |
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29 basetext = '\n'.join([i.strip('\n') for i in base] + ['']) |
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30 atext = '\n'.join([i.strip('\n') for i in a] + ['']) |
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31 btext = '\n'.join([i.strip('\n') for i in b] + ['']) |
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32 if util.binary(basetext) or util.binary(atext) or util.binary(btext): |
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33 raise util.Abort("don't know how to merge binary files") |
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34 simplemerge.Merge3Text.__init__(self, basetext, atext, btext, |
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35 base, a, b) |
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36 |
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37 CantReprocessAndShowBase = simplemerge.CantReprocessAndShowBase |
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38 |
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39 def split_lines(t): |
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40 from cStringIO import StringIO |
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41 return StringIO(t).readlines() |
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42 |
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43 ############################################################ |
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44 # test case data from the gnu diffutils manual |
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45 # common base |
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46 TZU = split_lines(""" The Nameless is the origin of Heaven and Earth; |
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47 The named is the mother of all things. |
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48 |
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49 Therefore let there always be non-being, |
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50 so we may see their subtlety, |
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51 And let there always be being, |
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52 so we may see their outcome. |
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53 The two are the same, |
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54 But after they are produced, |
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55 they have different names. |
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56 They both may be called deep and profound. |
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57 Deeper and more profound, |
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58 The door of all subtleties! |
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59 """) |
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60 |
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61 LAO = split_lines(""" The Way that can be told of is not the eternal Way; |
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62 The name that can be named is not the eternal name. |
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63 The Nameless is the origin of Heaven and Earth; |
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64 The Named is the mother of all things. |
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65 Therefore let there always be non-being, |
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66 so we may see their subtlety, |
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67 And let there always be being, |
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68 so we may see their outcome. |
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69 The two are the same, |
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70 But after they are produced, |
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71 they have different names. |
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72 """) |
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73 |
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74 |
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75 TAO = split_lines(""" The Way that can be told of is not the eternal Way; |
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76 The name that can be named is not the eternal name. |
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77 The Nameless is the origin of Heaven and Earth; |
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78 The named is the mother of all things. |
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79 |
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80 Therefore let there always be non-being, |
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81 so we may see their subtlety, |
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82 And let there always be being, |
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83 so we may see their result. |
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84 The two are the same, |
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85 But after they are produced, |
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86 they have different names. |
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87 |
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88 -- The Way of Lao-Tzu, tr. Wing-tsit Chan |
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89 |
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90 """) |
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91 |
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92 MERGED_RESULT = split_lines("""\ |
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93 The Way that can be told of is not the eternal Way; |
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94 The name that can be named is not the eternal name. |
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95 The Nameless is the origin of Heaven and Earth; |
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96 The Named is the mother of all things. |
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97 Therefore let there always be non-being, |
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98 so we may see their subtlety, |
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99 And let there always be being, |
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100 so we may see their result. |
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101 The two are the same, |
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102 But after they are produced, |
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103 they have different names. |
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104 <<<<<<< LAO |
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105 ======= |
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106 |
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107 -- The Way of Lao-Tzu, tr. Wing-tsit Chan |
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108 |
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109 >>>>>>> TAO |
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110 """) |
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111 |
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112 class TestMerge3(TestCase): |
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113 def log(self, msg): |
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114 pass |
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115 |
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116 def test_no_changes(self): |
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117 """No conflicts because nothing changed""" |
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118 m3 = Merge3(['aaa', 'bbb'], |
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119 ['aaa', 'bbb'], |
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120 ['aaa', 'bbb']) |
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121 |
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122 self.assertEquals(m3.find_unconflicted(), |
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123 [(0, 2)]) |
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124 |
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125 self.assertEquals(list(m3.find_sync_regions()), |
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126 [(0, 2, |
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127 0, 2, |
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128 0, 2), |
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129 (2, 2, 2, 2, 2, 2)]) |
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130 |
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131 self.assertEquals(list(m3.merge_regions()), |
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132 [('unchanged', 0, 2)]) |
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133 |
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134 self.assertEquals(list(m3.merge_groups()), |
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135 [('unchanged', ['aaa', 'bbb'])]) |
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136 |
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137 def test_front_insert(self): |
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138 m3 = Merge3(['zz'], |
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139 ['aaa', 'bbb', 'zz'], |
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140 ['zz']) |
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141 |
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142 # todo: should use a sentinal at end as from get_matching_blocks |
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143 # to match without zz |
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144 self.assertEquals(list(m3.find_sync_regions()), |
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145 [(0, 1, 2, 3, 0, 1), |
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146 (1, 1, 3, 3, 1, 1)]) |
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147 |
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148 self.assertEquals(list(m3.merge_regions()), |
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149 [('a', 0, 2), |
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150 ('unchanged', 0, 1)]) |
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151 |
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152 self.assertEquals(list(m3.merge_groups()), |
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153 [('a', ['aaa', 'bbb']), |
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154 ('unchanged', ['zz'])]) |
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155 |
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156 def test_null_insert(self): |
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157 m3 = Merge3([], |
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158 ['aaa', 'bbb'], |
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159 []) |
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160 # todo: should use a sentinal at end as from get_matching_blocks |
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161 # to match without zz |
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162 self.assertEquals(list(m3.find_sync_regions()), |
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163 [(0, 0, 2, 2, 0, 0)]) |
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164 |
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165 self.assertEquals(list(m3.merge_regions()), |
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166 [('a', 0, 2)]) |
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167 |
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168 self.assertEquals(list(m3.merge_lines()), |
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169 ['aaa', 'bbb']) |
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170 |
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171 def test_no_conflicts(self): |
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172 """No conflicts because only one side changed""" |
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173 m3 = Merge3(['aaa', 'bbb'], |
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174 ['aaa', '111', 'bbb'], |
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175 ['aaa', 'bbb']) |
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176 |
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177 self.assertEquals(m3.find_unconflicted(), |
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178 [(0, 1), (1, 2)]) |
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179 |
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180 self.assertEquals(list(m3.find_sync_regions()), |
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181 [(0, 1, 0, 1, 0, 1), |
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182 (1, 2, 2, 3, 1, 2), |
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183 (2, 2, 3, 3, 2, 2)]) |
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184 |
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185 self.assertEquals(list(m3.merge_regions()), |
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186 [('unchanged', 0, 1), |
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187 ('a', 1, 2), |
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188 ('unchanged', 1, 2)]) |
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189 |
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190 def test_append_a(self): |
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191 m3 = Merge3(['aaa\n', 'bbb\n'], |
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192 ['aaa\n', 'bbb\n', '222\n'], |
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193 ['aaa\n', 'bbb\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_b(self): |
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199 m3 = Merge3(['aaa\n', 'bbb\n'], |
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200 ['aaa\n', 'bbb\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_agreement(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', '222\n']) |
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210 |
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211 self.assertEquals(''.join(m3.merge_lines()), |
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212 'aaa\nbbb\n222\n') |
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213 |
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214 def test_append_clash(self): |
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215 m3 = Merge3(['aaa\n', 'bbb\n'], |
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216 ['aaa\n', 'bbb\n', '222\n'], |
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217 ['aaa\n', 'bbb\n', '333\n']) |
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218 |
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219 ml = m3.merge_lines(name_a='a', |
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220 name_b='b', |
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221 start_marker='<<', |
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222 mid_marker='--', |
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223 end_marker='>>') |
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224 self.assertEquals(''.join(ml), |
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225 'aaa\n' |
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226 'bbb\n' |
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227 '<< a\n' |
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228 '222\n' |
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229 '--\n' |
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230 '333\n' |
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231 '>> b\n' |
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232 ) |
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233 |
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234 def test_insert_agreement(self): |
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235 m3 = Merge3(['aaa\n', 'bbb\n'], |
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236 ['aaa\n', '222\n', 'bbb\n'], |
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237 ['aaa\n', '222\n', 'bbb\n']) |
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238 |
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239 ml = m3.merge_lines(name_a='a', |
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240 name_b='b', |
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241 start_marker='<<', |
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242 mid_marker='--', |
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243 end_marker='>>') |
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244 self.assertEquals(''.join(ml), 'aaa\n222\nbbb\n') |
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245 |
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246 |
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247 def test_insert_clash(self): |
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248 """Both try to insert lines in the same place.""" |
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249 m3 = Merge3(['aaa\n', 'bbb\n'], |
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250 ['aaa\n', '111\n', 'bbb\n'], |
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251 ['aaa\n', '222\n', 'bbb\n']) |
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252 |
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253 self.assertEquals(m3.find_unconflicted(), |
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254 [(0, 1), (1, 2)]) |
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255 |
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256 self.assertEquals(list(m3.find_sync_regions()), |
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257 [(0, 1, 0, 1, 0, 1), |
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258 (1, 2, 2, 3, 2, 3), |
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259 (2, 2, 3, 3, 3, 3)]) |
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260 |
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261 self.assertEquals(list(m3.merge_regions()), |
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262 [('unchanged', 0, 1), |
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263 ('conflict', 1, 1, 1, 2, 1, 2), |
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264 ('unchanged', 1, 2)]) |
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265 |
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266 self.assertEquals(list(m3.merge_groups()), |
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267 [('unchanged', ['aaa\n']), |
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268 ('conflict', [], ['111\n'], ['222\n']), |
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269 ('unchanged', ['bbb\n']), |
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270 ]) |
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271 |
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272 ml = m3.merge_lines(name_a='a', |
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273 name_b='b', |
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274 start_marker='<<', |
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275 mid_marker='--', |
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276 end_marker='>>') |
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277 self.assertEquals(''.join(ml), |
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278 '''aaa |
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279 << a |
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280 111 |
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281 -- |
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282 222 |
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283 >> b |
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284 bbb |
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285 ''') |
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286 |
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287 def test_replace_clash(self): |
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288 """Both try to insert lines in the same place.""" |
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289 m3 = Merge3(['aaa', '000', 'bbb'], |
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290 ['aaa', '111', 'bbb'], |
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291 ['aaa', '222', 'bbb']) |
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292 |
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293 self.assertEquals(m3.find_unconflicted(), |
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294 [(0, 1), (2, 3)]) |
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295 |
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296 self.assertEquals(list(m3.find_sync_regions()), |
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297 [(0, 1, 0, 1, 0, 1), |
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298 (2, 3, 2, 3, 2, 3), |
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299 (3, 3, 3, 3, 3, 3)]) |
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300 |
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301 def test_replace_multi(self): |
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302 """Replacement with regions of different size.""" |
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303 m3 = Merge3(['aaa', '000', '000', 'bbb'], |
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304 ['aaa', '111', '111', '111', 'bbb'], |
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305 ['aaa', '222', '222', '222', '222', 'bbb']) |
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306 |
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307 self.assertEquals(m3.find_unconflicted(), |
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308 [(0, 1), (3, 4)]) |
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309 |
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310 |
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311 self.assertEquals(list(m3.find_sync_regions()), |
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312 [(0, 1, 0, 1, 0, 1), |
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313 (3, 4, 4, 5, 5, 6), |
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314 (4, 4, 5, 5, 6, 6)]) |
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315 |
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316 def test_merge_poem(self): |
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317 """Test case from diff3 manual""" |
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318 m3 = Merge3(TZU, LAO, TAO) |
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319 ml = list(m3.merge_lines('LAO', 'TAO')) |
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320 self.log('merge result:') |
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321 self.log(''.join(ml)) |
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322 self.assertEquals(ml, MERGED_RESULT) |
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323 |
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324 def test_minimal_conflicts_common(self): |
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325 """Reprocessing""" |
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326 base_text = ("a\n" * 20).splitlines(True) |
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327 this_text = ("a\n"*10+"b\n" * 10).splitlines(True) |
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328 other_text = ("a\n"*10+"c\n"+"b\n" * 8 + "c\n").splitlines(True) |
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329 m3 = Merge3(base_text, other_text, this_text) |
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330 m_lines = m3.merge_lines('OTHER', 'THIS', reprocess=True) |
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331 merged_text = "".join(list(m_lines)) |
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332 optimal_text = ("a\n" * 10 + "<<<<<<< OTHER\nc\n=======\n" |
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333 + ">>>>>>> THIS\n" |
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334 + 8* "b\n" + "<<<<<<< OTHER\nc\n=======\n" |
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335 + 2* "b\n" + ">>>>>>> THIS\n") |
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336 self.assertEquals(optimal_text, merged_text) |
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337 |
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338 def test_minimal_conflicts_unique(self): |
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339 def add_newline(s): |
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340 """Add a newline to each entry in the string""" |
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341 return [(x+'\n') for x in s] |
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342 |
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343 base_text = add_newline("abcdefghijklm") |
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344 this_text = add_newline("abcdefghijklmNOPQRSTUVWXYZ") |
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345 other_text = add_newline("abcdefghijklm1OPQRSTUVWXY2") |
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346 m3 = Merge3(base_text, other_text, this_text) |
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347 m_lines = m3.merge_lines('OTHER', 'THIS', reprocess=True) |
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348 merged_text = "".join(list(m_lines)) |
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349 optimal_text = ''.join(add_newline("abcdefghijklm") |
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350 + ["<<<<<<< OTHER\n1\n=======\nN\n>>>>>>> THIS\n"] |
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351 + add_newline('OPQRSTUVWXY') |
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352 + ["<<<<<<< OTHER\n2\n=======\nZ\n>>>>>>> THIS\n"] |
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353 ) |
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354 self.assertEquals(optimal_text, merged_text) |
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355 |
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356 def test_minimal_conflicts_nonunique(self): |
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357 def add_newline(s): |
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358 """Add a newline to each entry in the string""" |
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359 return [(x+'\n') for x in s] |
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360 |
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361 base_text = add_newline("abacddefgghij") |
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362 this_text = add_newline("abacddefgghijkalmontfprz") |
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363 other_text = add_newline("abacddefgghijknlmontfprd") |
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364 m3 = Merge3(base_text, other_text, this_text) |
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365 m_lines = m3.merge_lines('OTHER', 'THIS', reprocess=True) |
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366 merged_text = "".join(list(m_lines)) |
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367 optimal_text = ''.join(add_newline("abacddefgghijk") |
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368 + ["<<<<<<< OTHER\nn\n=======\na\n>>>>>>> THIS\n"] |
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369 + add_newline('lmontfpr') |
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370 + ["<<<<<<< OTHER\nd\n=======\nz\n>>>>>>> THIS\n"] |
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371 ) |
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372 self.assertEquals(optimal_text, merged_text) |
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373 |
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374 def test_reprocess_and_base(self): |
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375 """Reprocessing and showing base breaks correctly""" |
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376 base_text = ("a\n" * 20).splitlines(True) |
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377 this_text = ("a\n"*10+"b\n" * 10).splitlines(True) |
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378 other_text = ("a\n"*10+"c\n"+"b\n" * 8 + "c\n").splitlines(True) |
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379 m3 = Merge3(base_text, other_text, this_text) |
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380 m_lines = m3.merge_lines('OTHER', 'THIS', reprocess=True, |
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381 base_marker='|||||||') |
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382 self.assertRaises(CantReprocessAndShowBase, list, m_lines) |
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383 |
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384 def test_binary(self): |
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385 self.assertRaises(util.Abort, Merge3, ['\x00'], ['a'], ['b']) |
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386 |
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387 def test_dos_text(self): |
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388 base_text = 'a\r\n' |
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389 this_text = 'b\r\n' |
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390 other_text = 'c\r\n' |
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391 m3 = Merge3(base_text.splitlines(True), other_text.splitlines(True), |
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392 this_text.splitlines(True)) |
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393 m_lines = m3.merge_lines('OTHER', 'THIS') |
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394 self.assertEqual('<<<<<<< OTHER\r\nc\r\n=======\r\nb\r\n' |
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395 '>>>>>>> THIS\r\n'.splitlines(True), list(m_lines)) |
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396 |
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397 def test_mac_text(self): |
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398 base_text = 'a\r' |
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399 this_text = 'b\r' |
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400 other_text = 'c\r' |
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401 m3 = Merge3(base_text.splitlines(True), other_text.splitlines(True), |
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402 this_text.splitlines(True)) |
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403 m_lines = m3.merge_lines('OTHER', 'THIS') |
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404 self.assertEqual('<<<<<<< OTHER\rc\r=======\rb\r' |
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405 '>>>>>>> THIS\r'.splitlines(True), list(m_lines)) |
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406 |
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407 if __name__ == '__main__': |
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408 # hide the timer |
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409 import time |
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410 orig = time.time |
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411 try: |
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412 time.time = lambda: 0 |
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413 unittest.main() |
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414 finally: |
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415 time.time = orig |
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416 |