Mercurial > hg
annotate tests/test-rust-ancestor.py @ 48324:95ea181d9bdd stable
tests: fix test-censor by improving regexp (issue6585)
Differential Revision: https://phab.mercurial-scm.org/D11753
author | Thomas Klausner <wiz@gatalith.at> |
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date | Mon, 15 Nov 2021 00:08:02 +0100 |
parents | 59fa3890d40a |
children | 6000f5b25c9b |
rev | line source |
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1 from __future__ import absolute_import |
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2 import sys |
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3 import unittest |
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4 |
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5 from mercurial.node import wdirrev |
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6 from mercurial import error |
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7 |
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8 from mercurial.testing import revlog as revlogtesting |
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9 |
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10 try: |
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11 from mercurial import rustext |
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12 |
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13 rustext.__name__ # trigger immediate actual import |
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14 except ImportError: |
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15 rustext = None |
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16 else: |
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17 # this would fail already without appropriate ancestor.__package__ |
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18 from mercurial.rustext.ancestor import ( |
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19 AncestorsIterator, |
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20 LazyAncestors, |
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21 MissingAncestors, |
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22 ) |
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23 from mercurial.rustext import dagop |
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24 |
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25 try: |
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26 from mercurial.cext import parsers as cparsers |
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27 except ImportError: |
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28 cparsers = None |
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29 |
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30 |
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31 @unittest.skipIf( |
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32 rustext is None, |
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33 'The Rust version of the "ancestor" module is not available. It is needed' |
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34 ' for this test.', |
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35 ) |
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36 @unittest.skipIf( |
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37 rustext is None, |
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38 'The Rust or C version of the "parsers" module, which the "ancestor" module' |
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39 ' relies on, is not available.', |
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40 ) |
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41 class rustancestorstest(revlogtesting.RevlogBasedTestBase): |
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42 """Test the correctness of binding to Rust code. |
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43 |
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44 This test is merely for the binding to Rust itself: extraction of |
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45 Python variable, giving back the results etc. |
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46 |
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47 It is not meant to test the algorithmic correctness of the operations |
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48 on ancestors it provides. Hence the very simple embedded index data is |
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49 good enough. |
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50 |
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51 Algorithmic correctness is asserted by the Rust unit tests. |
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52 """ |
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53 |
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54 def testiteratorrevlist(self): |
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55 idx = self.parseindex() |
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56 # checking test assumption about the index binary data: |
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57 self.assertEqual( |
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58 {i: (r[5], r[6]) for i, r in enumerate(idx)}, |
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59 {0: (-1, -1), 1: (0, -1), 2: (1, -1), 3: (2, -1)}, |
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60 ) |
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61 ait = AncestorsIterator(idx, [3], 0, True) |
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62 self.assertEqual([r for r in ait], [3, 2, 1, 0]) |
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63 |
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64 ait = AncestorsIterator(idx, [3], 0, False) |
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65 self.assertEqual([r for r in ait], [2, 1, 0]) |
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66 |
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67 def testlazyancestors(self): |
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68 idx = self.parseindex() |
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69 start_count = sys.getrefcount(idx) # should be 2 (see Python doc) |
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70 self.assertEqual( |
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71 {i: (r[5], r[6]) for i, r in enumerate(idx)}, |
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72 {0: (-1, -1), 1: (0, -1), 2: (1, -1), 3: (2, -1)}, |
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73 ) |
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74 lazy = LazyAncestors(idx, [3], 0, True) |
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75 # we have two more references to the index: |
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76 # - in its inner iterator for __contains__ and __bool__ |
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77 # - in the LazyAncestors instance itself (to spawn new iterators) |
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78 self.assertEqual(sys.getrefcount(idx), start_count + 2) |
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79 |
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80 self.assertTrue(2 in lazy) |
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81 self.assertTrue(bool(lazy)) |
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82 self.assertEqual(list(lazy), [3, 2, 1, 0]) |
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83 # a second time to validate that we spawn new iterators |
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84 self.assertEqual(list(lazy), [3, 2, 1, 0]) |
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85 |
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86 # now let's watch the refcounts closer |
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87 ait = iter(lazy) |
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88 self.assertEqual(sys.getrefcount(idx), start_count + 3) |
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89 del ait |
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90 self.assertEqual(sys.getrefcount(idx), start_count + 2) |
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91 del lazy |
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92 self.assertEqual(sys.getrefcount(idx), start_count) |
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93 |
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94 # let's check bool for an empty one |
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95 self.assertFalse(LazyAncestors(idx, [0], 0, False)) |
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96 |
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97 def testmissingancestors(self): |
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98 idx = self.parseindex() |
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99 missanc = MissingAncestors(idx, [1]) |
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100 self.assertTrue(missanc.hasbases()) |
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101 self.assertEqual(missanc.missingancestors([3]), [2, 3]) |
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102 missanc.addbases({2}) |
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103 self.assertEqual(missanc.bases(), {1, 2}) |
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104 self.assertEqual(missanc.missingancestors([3]), [3]) |
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105 self.assertEqual(missanc.basesheads(), {2}) |
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106 |
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107 def testmissingancestorsremove(self): |
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108 idx = self.parseindex() |
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109 missanc = MissingAncestors(idx, [1]) |
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110 revs = {0, 1, 2, 3} |
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111 missanc.removeancestorsfrom(revs) |
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112 self.assertEqual(revs, {2, 3}) |
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113 |
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114 def testrefcount(self): |
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115 idx = self.parseindex() |
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116 start_count = sys.getrefcount(idx) |
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117 |
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118 # refcount increases upon iterator init... |
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119 ait = AncestorsIterator(idx, [3], 0, True) |
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120 self.assertEqual(sys.getrefcount(idx), start_count + 1) |
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121 self.assertEqual(next(ait), 3) |
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122 |
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123 # and decreases once the iterator is removed |
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124 del ait |
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125 self.assertEqual(sys.getrefcount(idx), start_count) |
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126 |
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127 # and removing ref to the index after iterator init is no issue |
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128 ait = AncestorsIterator(idx, [3], 0, True) |
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129 del idx |
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130 self.assertEqual(list(ait), [3, 2, 1, 0]) |
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131 |
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132 def testgrapherror(self): |
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133 data = ( |
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134 revlogtesting.data_non_inlined[: 64 + 27] |
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135 + b'\xf2' |
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136 + revlogtesting.data_non_inlined[64 + 28 :] |
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137 ) |
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138 idx = cparsers.parse_index2(data, False)[0] |
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139 with self.assertRaises(rustext.GraphError) as arc: |
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140 AncestorsIterator(idx, [1], -1, False) |
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141 exc = arc.exception |
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142 self.assertIsInstance(exc, ValueError) |
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143 # rust-cpython issues appropriate str instances for Python 2 and 3 |
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144 self.assertEqual(exc.args, ('ParentOutOfRange', 1)) |
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145 |
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146 def testwdirunsupported(self): |
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147 # trying to access ancestors of the working directory raises |
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148 # WdirUnsupported directly |
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149 idx = self.parseindex() |
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150 with self.assertRaises(error.WdirUnsupported): |
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151 list(AncestorsIterator(idx, [wdirrev], -1, False)) |
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152 |
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153 def testheadrevs(self): |
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154 idx = self.parseindex() |
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155 self.assertEqual(dagop.headrevs(idx, [1, 2, 3]), {3}) |
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156 |
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157 |
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158 if __name__ == '__main__': |
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159 import silenttestrunner |
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160 |
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161 silenttestrunner.main(__name__) |