annotate tests/test-linerange.py @ 40413:1ddd202c47d9

help: allow hiding of help topics Differential Revision: https://phab.mercurial-scm.org/D5077
author rdamazio@google.com
date Sat, 13 Oct 2018 05:43:39 -0700
parents 6939b6ac960a
children 2372284d9457
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1 from __future__ import absolute_import
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2
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3 import unittest
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4 from mercurial import error, mdiff
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6 # for readability, line numbers are 0-origin
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7 text1 = b'''
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20 '''[1:] # strip initial LF
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21
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22 text2 = b'''
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35 '''[1:] # strip initial LF
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36
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37 def filteredblocks(blocks, rangeb):
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38 """return `rangea` extracted from `blocks` coming from
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39 `mdiff.blocksinrange` along with the mask of blocks within rangeb.
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40 """
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41 filtered, rangea = mdiff.blocksinrange(blocks, rangeb)
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42 skipped = [b not in filtered for b in blocks]
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43 return rangea, skipped
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45 class blocksinrangetests(unittest.TestCase):
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46
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47 def setUp(self):
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48 self.blocks = list(mdiff.allblocks(text1, text2))
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49 assert self.blocks == [
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50 ([0, 3, 0, 2], b'!'),
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51 ((3, 7, 2, 6), b'='),
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52 ([7, 12, 6, 12], b'!'),
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53 ((12, 12, 12, 12), b'='),
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54 ], self.blocks
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55
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56 def testWithinEqual(self):
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57 """linerange within an "=" block"""
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58 # IDX 0 1
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59 # 012345678901
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60 # SRC NNOOOONNNNNN (New/Old)
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61 # ^^
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62 linerange2 = (3, 5)
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63 linerange1, skipped = filteredblocks(self.blocks, linerange2)
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64 self.assertEqual(linerange1, (4, 6))
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65 self.assertEqual(skipped, [True, False, True, True])
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66
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67 def testWithinEqualStrictly(self):
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68 """linerange matching exactly an "=" block"""
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69 # IDX 0 1
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70 # 012345678901
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71 # SRC NNOOOONNNNNN (New/Old)
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72 # ^^^^
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73 linerange2 = (2, 6)
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74 linerange1, skipped = filteredblocks(self.blocks, linerange2)
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75 self.assertEqual(linerange1, (3, 7))
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76 self.assertEqual(skipped, [True, False, True, True])
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77
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78 def testWithinEqualLowerbound(self):
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79 """linerange at beginning of an "=" block"""
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80 # IDX 0 1
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81 # 012345678901
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82 # SRC NNOOOONNNNNN (New/Old)
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83 # ^^
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84 linerange2 = (2, 4)
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85 linerange1, skipped = filteredblocks(self.blocks, linerange2)
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86 self.assertEqual(linerange1, (3, 5))
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87 self.assertEqual(skipped, [True, False, True, True])
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88
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89 def testWithinEqualLowerboundOneline(self):
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90 """oneline-linerange at beginning of an "=" block"""
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91 # IDX 0 1
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92 # 012345678901
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93 # SRC NNOOOONNNNNN (New/Old)
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94 # ^
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95 linerange2 = (2, 3)
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96 linerange1, skipped = filteredblocks(self.blocks, linerange2)
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97 self.assertEqual(linerange1, (3, 4))
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98 self.assertEqual(skipped, [True, False, True, True])
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99
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100 def testWithinEqualUpperbound(self):
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101 """linerange at end of an "=" block"""
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102 # IDX 0 1
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103 # 012345678901
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104 # SRC NNOOOONNNNNN (New/Old)
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105 # ^^^
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106 linerange2 = (3, 6)
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107 linerange1, skipped = filteredblocks(self.blocks, linerange2)
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108 self.assertEqual(linerange1, (4, 7))
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109 self.assertEqual(skipped, [True, False, True, True])
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110
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111 def testWithinEqualUpperboundOneLine(self):
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112 """oneline-linerange at end of an "=" block"""
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113 # IDX 0 1
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114 # 012345678901
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diff changeset
115 # SRC NNOOOONNNNNN (New/Old)
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116 # ^
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117 linerange2 = (5, 6)
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118 linerange1, skipped = filteredblocks(self.blocks, linerange2)
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119 self.assertEqual(linerange1, (6, 7))
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120 self.assertEqual(skipped, [True, False, True, True])
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121
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diff changeset
122 def testWithinFirstBlockNeq(self):
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123 """linerange within the first "!" block"""
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124 # IDX 0 1
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diff changeset
125 # 012345678901
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diff changeset
126 # SRC NNOOOONNNNNN (New/Old)
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127 # ^
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diff changeset
128 # | (empty)
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129 # ^
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130 # ^^
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131 for linerange2 in [
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132 (0, 1),
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133 (1, 1),
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Denis Laxalde <denis.laxalde@logilab.fr>
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diff changeset
134 (1, 2),
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135 (0, 2),
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136 ]:
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137 linerange1, skipped = filteredblocks(self.blocks, linerange2)
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138 self.assertEqual(linerange1, (0, 3))
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139 self.assertEqual(skipped, [False, True, True, True])
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140
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diff changeset
141 def testWithinLastBlockNeq(self):
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142 """linerange within the last "!" block"""
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143 # IDX 0 1
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144 # 012345678901
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145 # SRC NNOOOONNNNNN (New/Old)
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146 # ^
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147 # ^
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148 # | (empty)
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149 # ^^^^^^
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150 # ^
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151 for linerange2 in [
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152 (6, 7),
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153 (7, 8),
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154 (7, 7),
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155 (6, 12),
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156 (11, 12),
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157 ]:
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158 linerange1, skipped = filteredblocks(self.blocks, linerange2)
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159 self.assertEqual(linerange1, (7, 12))
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160 self.assertEqual(skipped, [True, True, False, True])
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161
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162 def testAccrossTwoBlocks(self):
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163 """linerange accross two blocks"""
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164 # IDX 0 1
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165 # 012345678901
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166 # SRC NNOOOONNNNNN (New/Old)
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167 # ^^^^
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168 linerange2 = (1, 5)
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169 linerange1, skipped = filteredblocks(self.blocks, linerange2)
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170 self.assertEqual(linerange1, (0, 6))
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171 self.assertEqual(skipped, [False, False, True, True])
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diff changeset
172
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173 def testCrossingSeveralBlocks(self):
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174 """linerange accross three blocks"""
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diff changeset
175 # IDX 0 1
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diff changeset
176 # 012345678901
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177 # SRC NNOOOONNNNNN (New/Old)
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178 # ^^^^^^^
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179 linerange2 = (1, 8)
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180 linerange1, skipped = filteredblocks(self.blocks, linerange2)
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181 self.assertEqual(linerange1, (0, 12))
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182 self.assertEqual(skipped, [False, False, False, True])
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diff changeset
183
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diff changeset
184 def testStartInEqBlock(self):
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185 """linerange starting in an "=" block"""
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diff changeset
186 # IDX 0 1
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diff changeset
187 # 012345678901
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diff changeset
188 # SRC NNOOOONNNNNN (New/Old)
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diff changeset
189 # ^^^^
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190 # ^^^^^^^
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diff changeset
191 for linerange2, expectedlinerange1 in [
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192 ((5, 9), (6, 12)),
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diff changeset
193 ((4, 11), (5, 12)),
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diff changeset
194 ]:
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195 linerange1, skipped = filteredblocks(self.blocks, linerange2)
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diff changeset
196 self.assertEqual(linerange1, expectedlinerange1)
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197 self.assertEqual(skipped, [True, False, False, True])
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diff changeset
198
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Denis Laxalde <denis.laxalde@logilab.fr>
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diff changeset
199 def testEndInEqBlock(self):
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200 """linerange ending in an "=" block"""
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diff changeset
201 # IDX 0 1
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diff changeset
202 # 012345678901
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diff changeset
203 # SRC NNOOOONNNNNN (New/Old)
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diff changeset
204 # ^^
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205 # ^^^^^
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diff changeset
206 for linerange2, expectedlinerange1 in [
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diff changeset
207 ((1, 3), (0, 4)),
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diff changeset
208 ((0, 4), (0, 5)),
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diff changeset
209 ]:
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diff changeset
210 linerange1, skipped = filteredblocks(self.blocks, linerange2)
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diff changeset
211 self.assertEqual(linerange1, expectedlinerange1)
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diff changeset
212 self.assertEqual(skipped, [False, False, True, True])
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diff changeset
213
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Denis Laxalde <denis.laxalde@logilab.fr>
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diff changeset
214 def testOutOfRange(self):
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diff changeset
215 """linerange exceeding file size"""
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diff changeset
216 exctype = error.Abort
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diff changeset
217 for linerange2 in [
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diff changeset
218 (0, 34),
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diff changeset
219 (15, 12),
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Denis Laxalde <denis.laxalde@logilab.fr>
parents:
diff changeset
220 ]:
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diff changeset
221 # Could be `with self.assertRaises(error.Abort)` but python2.6
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diff changeset
222 # does not have assertRaises context manager.
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diff changeset
223 try:
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diff changeset
224 mdiff.blocksinrange(self.blocks, linerange2)
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diff changeset
225 except exctype as exc:
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226 self.assertTrue('line range exceeds file size' in str(exc))
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227 else:
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228 self.fail('%s not raised' % exctype.__name__)
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229
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230 if __name__ == '__main__':
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231 import silenttestrunner
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232 silenttestrunner.main(__name__)