Mercurial > hg
annotate tests/test-simplemerge.py @ 24793:2ec894582ea2
bundle2: add a 'copy' method on parts
This is the first step in our quest for preserving the server output on error
(issue4594). We want to be able to copy the output parts from the aborted reply
into the exception bundle.
The function will be used in a later patch.
author | Pierre-Yves David <pierre-yves.david@fb.com> |
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date | Thu, 16 Apr 2015 03:15:28 -0400 |
parents | f18830651811 |
children | 56b2bcea2529 |
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, see <http://www.gnu.org/licenses/>. |
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15 |
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16 import unittest |
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17 from unittest import TestCase |
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18 from mercurial import util, simplemerge |
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19 |
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20 # bzr compatible interface, for the tests |
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21 class Merge3(simplemerge.Merge3Text): |
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22 """3-way merge of texts. |
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23 |
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24 Given BASE, OTHER, THIS, tries to produce a combined text |
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25 incorporating the changes from both BASE->OTHER and BASE->THIS. |
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26 All three will typically be sequences of lines.""" |
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27 def __init__(self, base, a, b): |
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28 basetext = '\n'.join([i.strip('\n') for i in base] + ['']) |
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29 atext = '\n'.join([i.strip('\n') for i in a] + ['']) |
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30 btext = '\n'.join([i.strip('\n') for i in b] + ['']) |
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31 if util.binary(basetext) or util.binary(atext) or util.binary(btext): |
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32 raise util.Abort("don't know how to merge binary files") |
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33 simplemerge.Merge3Text.__init__(self, basetext, atext, btext, |
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34 base, a, b) |
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35 |
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36 CantReprocessAndShowBase = simplemerge.CantReprocessAndShowBase |
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37 |
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38 def split_lines(t): |
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39 from cStringIO import StringIO |
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40 return StringIO(t).readlines() |
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41 |
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42 ############################################################ |
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43 # test case data from the gnu diffutils manual |
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44 # common base |
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45 TZU = split_lines(""" The Nameless is the origin of Heaven and Earth; |
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46 The named is the mother of all things. |
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47 |
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48 Therefore let there always be non-being, |
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49 so we may see their subtlety, |
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50 And let there always be being, |
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51 so we may see their outcome. |
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52 The two are the same, |
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53 But after they are produced, |
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54 they have different names. |
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55 They both may be called deep and profound. |
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56 Deeper and more profound, |
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57 The door of all subtleties! |
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58 """) |
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59 |
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60 LAO = split_lines(""" The Way that can be told of is not the eternal Way; |
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61 The name that can be named is not the eternal name. |
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62 The Nameless is the origin of Heaven and Earth; |
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63 The Named is the mother of all things. |
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64 Therefore let there always be non-being, |
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65 so we may see their subtlety, |
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66 And let there always be being, |
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67 so we may see their outcome. |
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68 The two are the same, |
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69 But after they are produced, |
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70 they have different names. |
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71 """) |
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72 |
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73 |
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74 TAO = split_lines(""" The Way that can be told of is not the eternal Way; |
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75 The name that can be named is not the eternal name. |
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76 The Nameless is the origin of Heaven and Earth; |
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77 The named is the mother of all things. |
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78 |
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79 Therefore let there always be non-being, |
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80 so we may see their subtlety, |
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81 And let there always be being, |
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82 so we may see their result. |
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83 The two are the same, |
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84 But after they are produced, |
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85 they have different names. |
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86 |
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87 -- The Way of Lao-Tzu, tr. Wing-tsit Chan |
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88 |
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89 """) |
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90 |
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91 MERGED_RESULT = split_lines("""\ |
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92 The Way that can be told of is not the eternal Way; |
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93 The name that can be named is not the eternal name. |
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94 The Nameless is the origin of Heaven and Earth; |
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95 The Named is the mother of all things. |
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96 Therefore let there always be non-being, |
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97 so we may see their subtlety, |
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98 And let there always be being, |
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99 so we may see their result. |
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100 The two are the same, |
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101 But after they are produced, |
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102 they have different names. |
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103 <<<<<<< LAO |
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104 ======= |
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105 |
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106 -- The Way of Lao-Tzu, tr. Wing-tsit Chan |
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107 |
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108 >>>>>>> TAO |
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109 """) |
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110 |
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111 class TestMerge3(TestCase): |
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112 def log(self, msg): |
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113 pass |
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114 |
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115 def test_no_changes(self): |
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116 """No conflicts because nothing changed""" |
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117 m3 = Merge3(['aaa', 'bbb'], |
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118 ['aaa', 'bbb'], |
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119 ['aaa', 'bbb']) |
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120 |
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121 self.assertEquals(m3.find_unconflicted(), |
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122 [(0, 2)]) |
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123 |
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124 self.assertEquals(list(m3.find_sync_regions()), |
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125 [(0, 2, |
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126 0, 2, |
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127 0, 2), |
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128 (2, 2, 2, 2, 2, 2)]) |
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129 |
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130 self.assertEquals(list(m3.merge_regions()), |
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131 [('unchanged', 0, 2)]) |
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132 |
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133 self.assertEquals(list(m3.merge_groups()), |
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134 [('unchanged', ['aaa', 'bbb'])]) |
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135 |
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136 def test_front_insert(self): |
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137 m3 = Merge3(['zz'], |
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138 ['aaa', 'bbb', 'zz'], |
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139 ['zz']) |
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140 |
17513 | 141 # todo: should use a sentinel at end as from get_matching_blocks |
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142 # to match without zz |
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143 self.assertEquals(list(m3.find_sync_regions()), |
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144 [(0, 1, 2, 3, 0, 1), |
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145 (1, 1, 3, 3, 1, 1)]) |
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146 |
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147 self.assertEquals(list(m3.merge_regions()), |
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148 [('a', 0, 2), |
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149 ('unchanged', 0, 1)]) |
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150 |
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151 self.assertEquals(list(m3.merge_groups()), |
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152 [('a', ['aaa', 'bbb']), |
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153 ('unchanged', ['zz'])]) |
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154 |
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155 def test_null_insert(self): |
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156 m3 = Merge3([], |
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157 ['aaa', 'bbb'], |
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158 []) |
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160 # to match without zz |
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161 self.assertEquals(list(m3.find_sync_regions()), |
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162 [(0, 0, 2, 2, 0, 0)]) |
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163 |
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164 self.assertEquals(list(m3.merge_regions()), |
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165 [('a', 0, 2)]) |
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166 |
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167 self.assertEquals(list(m3.merge_lines()), |
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168 ['aaa', 'bbb']) |
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169 |
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170 def test_no_conflicts(self): |
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171 """No conflicts because only one side changed""" |
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172 m3 = Merge3(['aaa', 'bbb'], |
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173 ['aaa', '111', 'bbb'], |
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174 ['aaa', 'bbb']) |
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175 |
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176 self.assertEquals(m3.find_unconflicted(), |
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177 [(0, 1), (1, 2)]) |
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178 |
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179 self.assertEquals(list(m3.find_sync_regions()), |
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180 [(0, 1, 0, 1, 0, 1), |
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181 (1, 2, 2, 3, 1, 2), |
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182 (2, 2, 3, 3, 2, 2)]) |
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183 |
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184 self.assertEquals(list(m3.merge_regions()), |
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185 [('unchanged', 0, 1), |
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186 ('a', 1, 2), |
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187 ('unchanged', 1, 2)]) |
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188 |
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189 def test_append_a(self): |
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190 m3 = Merge3(['aaa\n', 'bbb\n'], |
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191 ['aaa\n', 'bbb\n', '222\n'], |
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192 ['aaa\n', 'bbb\n']) |
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193 |
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194 self.assertEquals(''.join(m3.merge_lines()), |
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195 'aaa\nbbb\n222\n') |
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196 |
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197 def test_append_b(self): |
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198 m3 = Merge3(['aaa\n', 'bbb\n'], |
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199 ['aaa\n', 'bbb\n'], |
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200 ['aaa\n', 'bbb\n', '222\n']) |
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201 |
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202 self.assertEquals(''.join(m3.merge_lines()), |
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203 'aaa\nbbb\n222\n') |
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204 |
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205 def test_append_agreement(self): |
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206 m3 = Merge3(['aaa\n', 'bbb\n'], |
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207 ['aaa\n', 'bbb\n', '222\n'], |
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208 ['aaa\n', 'bbb\n', '222\n']) |
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209 |
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210 self.assertEquals(''.join(m3.merge_lines()), |
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211 'aaa\nbbb\n222\n') |
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212 |
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213 def test_append_clash(self): |
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214 m3 = Merge3(['aaa\n', 'bbb\n'], |
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215 ['aaa\n', 'bbb\n', '222\n'], |
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216 ['aaa\n', 'bbb\n', '333\n']) |
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217 |
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218 ml = m3.merge_lines(name_a='a', |
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219 name_b='b', |
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220 start_marker='<<', |
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221 mid_marker='--', |
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222 end_marker='>>') |
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223 self.assertEquals(''.join(ml), |
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224 'aaa\n' |
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225 'bbb\n' |
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226 '<< a\n' |
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227 '222\n' |
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228 '--\n' |
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229 '333\n' |
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230 '>> b\n' |
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231 ) |
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232 |
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233 def test_insert_agreement(self): |
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234 m3 = Merge3(['aaa\n', 'bbb\n'], |
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235 ['aaa\n', '222\n', 'bbb\n'], |
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236 ['aaa\n', '222\n', 'bbb\n']) |
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237 |
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238 ml = m3.merge_lines(name_a='a', |
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239 name_b='b', |
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240 start_marker='<<', |
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241 mid_marker='--', |
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242 end_marker='>>') |
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243 self.assertEquals(''.join(ml), 'aaa\n222\nbbb\n') |
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244 |
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245 |
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246 def test_insert_clash(self): |
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247 """Both try to insert lines in the same place.""" |
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248 m3 = Merge3(['aaa\n', 'bbb\n'], |
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249 ['aaa\n', '111\n', 'bbb\n'], |
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250 ['aaa\n', '222\n', 'bbb\n']) |
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251 |
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252 self.assertEquals(m3.find_unconflicted(), |
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253 [(0, 1), (1, 2)]) |
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254 |
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255 self.assertEquals(list(m3.find_sync_regions()), |
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256 [(0, 1, 0, 1, 0, 1), |
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257 (1, 2, 2, 3, 2, 3), |
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258 (2, 2, 3, 3, 3, 3)]) |
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259 |
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260 self.assertEquals(list(m3.merge_regions()), |
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261 [('unchanged', 0, 1), |
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262 ('conflict', 1, 1, 1, 2, 1, 2), |
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263 ('unchanged', 1, 2)]) |
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264 |
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265 self.assertEquals(list(m3.merge_groups()), |
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266 [('unchanged', ['aaa\n']), |
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267 ('conflict', [], ['111\n'], ['222\n']), |
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268 ('unchanged', ['bbb\n']), |
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269 ]) |
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270 |
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271 ml = m3.merge_lines(name_a='a', |
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272 name_b='b', |
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273 start_marker='<<', |
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274 mid_marker='--', |
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275 end_marker='>>') |
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276 self.assertEquals(''.join(ml), |
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277 '''aaa |
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278 << a |
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279 111 |
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280 -- |
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281 222 |
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282 >> b |
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283 bbb |
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284 ''') |
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285 |
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286 def test_replace_clash(self): |
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287 """Both try to insert lines in the same place.""" |
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288 m3 = Merge3(['aaa', '000', 'bbb'], |
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289 ['aaa', '111', 'bbb'], |
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290 ['aaa', '222', 'bbb']) |
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291 |
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292 self.assertEquals(m3.find_unconflicted(), |
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293 [(0, 1), (2, 3)]) |
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294 |
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295 self.assertEquals(list(m3.find_sync_regions()), |
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296 [(0, 1, 0, 1, 0, 1), |
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297 (2, 3, 2, 3, 2, 3), |
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298 (3, 3, 3, 3, 3, 3)]) |
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299 |
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300 def test_replace_multi(self): |
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301 """Replacement with regions of different size.""" |
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302 m3 = Merge3(['aaa', '000', '000', 'bbb'], |
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303 ['aaa', '111', '111', '111', 'bbb'], |
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304 ['aaa', '222', '222', '222', '222', 'bbb']) |
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305 |
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306 self.assertEquals(m3.find_unconflicted(), |
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307 [(0, 1), (3, 4)]) |
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308 |
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309 |
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310 self.assertEquals(list(m3.find_sync_regions()), |
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311 [(0, 1, 0, 1, 0, 1), |
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312 (3, 4, 4, 5, 5, 6), |
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313 (4, 4, 5, 5, 6, 6)]) |
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314 |
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315 def test_merge_poem(self): |
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316 """Test case from diff3 manual""" |
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317 m3 = Merge3(TZU, LAO, TAO) |
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318 ml = list(m3.merge_lines('LAO', 'TAO')) |
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319 self.log('merge result:') |
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320 self.log(''.join(ml)) |
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321 self.assertEquals(ml, MERGED_RESULT) |
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322 |
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323 def test_binary(self): |
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324 self.assertRaises(util.Abort, Merge3, ['\x00'], ['a'], ['b']) |
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325 |
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326 def test_dos_text(self): |
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327 base_text = 'a\r\n' |
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328 this_text = 'b\r\n' |
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329 other_text = 'c\r\n' |
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330 m3 = Merge3(base_text.splitlines(True), other_text.splitlines(True), |
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331 this_text.splitlines(True)) |
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332 m_lines = m3.merge_lines('OTHER', 'THIS') |
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333 self.assertEqual('<<<<<<< OTHER\r\nc\r\n=======\r\nb\r\n' |
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334 '>>>>>>> THIS\r\n'.splitlines(True), list(m_lines)) |
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335 |
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336 def test_mac_text(self): |
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337 base_text = 'a\r' |
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338 this_text = 'b\r' |
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339 other_text = 'c\r' |
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340 m3 = Merge3(base_text.splitlines(True), other_text.splitlines(True), |
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341 this_text.splitlines(True)) |
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342 m_lines = m3.merge_lines('OTHER', 'THIS') |
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343 self.assertEqual('<<<<<<< OTHER\rc\r=======\rb\r' |
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344 '>>>>>>> THIS\r'.splitlines(True), list(m_lines)) |
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345 |
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346 if __name__ == '__main__': |
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347 # hide the timer |
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348 import time |
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349 orig = time.time |
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350 try: |
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351 time.time = lambda: 0 |
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352 unittest.main() |
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353 finally: |
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354 time.time = orig |
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355 |