Mercurial > hg
annotate tests/test-lock.py @ 26369:4799b5c4aaf4
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author | Yuya Nishihara <yuya@tcha.org> |
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date | Sat, 26 Sep 2015 11:25:38 +0900 |
parents | db4c192cb9b3 |
children | 94dc10834b79 |
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1 from __future__ import absolute_import |
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2 |
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3 import os |
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4 import silenttestrunner |
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5 import tempfile |
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6 import unittest |
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7 |
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8 from mercurial import ( |
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9 lock, |
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10 scmutil, |
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11 ) |
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12 |
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13 testlockname = 'testlock' |
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14 |
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15 class teststate(object): |
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16 def __init__(self, testcase): |
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17 self._testcase = testcase |
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18 self._acquirecalled = False |
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19 self._releasecalled = False |
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20 self._postreleasecalled = False |
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21 d = tempfile.mkdtemp(dir=os.getcwd()) |
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22 self.vfs = scmutil.vfs(d, audit=False) |
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23 |
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24 def makelock(self, *args, **kwargs): |
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25 l = lock.lock(self.vfs, testlockname, releasefn=self.releasefn, |
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26 acquirefn=self.acquirefn, *args, **kwargs) |
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27 l.postrelease.append(self.postreleasefn) |
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28 return l |
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29 |
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30 def acquirefn(self): |
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31 self._acquirecalled = True |
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32 |
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33 def releasefn(self): |
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34 self._releasecalled = True |
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35 |
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36 def postreleasefn(self): |
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37 self._postreleasecalled = True |
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38 |
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39 def assertacquirecalled(self, called): |
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40 self._testcase.assertEqual( |
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41 self._acquirecalled, called, |
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42 'expected acquire to be %s but was actually %s' % ( |
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43 self._tocalled(called), |
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44 self._tocalled(self._acquirecalled), |
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45 )) |
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46 |
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47 def resetacquirefn(self): |
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48 self._acquirecalled = False |
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49 |
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50 def assertreleasecalled(self, called): |
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51 self._testcase.assertEqual( |
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52 self._releasecalled, called, |
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53 'expected release to be %s but was actually %s' % ( |
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54 self._tocalled(called), |
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55 self._tocalled(self._releasecalled), |
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56 )) |
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57 |
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58 def assertpostreleasecalled(self, called): |
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59 self._testcase.assertEqual( |
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60 self._postreleasecalled, called, |
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61 'expected postrelease to be %s but was actually %s' % ( |
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62 self._tocalled(called), |
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63 self._tocalled(self._postreleasecalled), |
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64 )) |
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65 |
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66 def assertlockexists(self, exists): |
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67 actual = self.vfs.lexists(testlockname) |
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68 self._testcase.assertEqual( |
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69 actual, exists, |
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70 'expected lock to %s but actually did %s' % ( |
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71 self._toexists(exists), |
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72 self._toexists(actual), |
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73 )) |
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74 |
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75 def _tocalled(self, called): |
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76 if called: |
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77 return 'called' |
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78 else: |
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79 return 'not called' |
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80 |
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81 def _toexists(self, exists): |
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82 if exists: |
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83 return 'exists' |
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84 else: |
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85 return 'not exists' |
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86 |
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87 class testlock(unittest.TestCase): |
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88 def testlock(self): |
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89 state = teststate(self) |
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90 lock = state.makelock() |
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91 state.assertacquirecalled(True) |
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92 lock.release() |
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93 state.assertreleasecalled(True) |
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94 state.assertpostreleasecalled(True) |
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95 state.assertlockexists(False) |
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96 |
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97 def testrecursivelock(self): |
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98 state = teststate(self) |
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99 lock = state.makelock() |
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100 state.assertacquirecalled(True) |
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101 |
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102 state.resetacquirefn() |
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103 lock.lock() |
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104 # recursive lock should not call acquirefn again |
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105 state.assertacquirecalled(False) |
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106 |
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107 lock.release() # brings lock refcount down from 2 to 1 |
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108 state.assertreleasecalled(False) |
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109 state.assertpostreleasecalled(False) |
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110 state.assertlockexists(True) |
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111 |
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112 lock.release() # releases the lock |
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113 state.assertreleasecalled(True) |
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114 state.assertpostreleasecalled(True) |
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115 state.assertlockexists(False) |
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116 |
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117 def testlockfork(self): |
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118 state = teststate(self) |
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119 lock = state.makelock() |
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120 state.assertacquirecalled(True) |
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121 lock.lock() |
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122 # fake a fork |
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123 lock.pid += 1 |
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124 lock.release() |
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125 state.assertreleasecalled(False) |
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126 state.assertpostreleasecalled(False) |
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127 state.assertlockexists(True) |
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128 |
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129 # release the actual lock |
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130 lock.pid -= 1 |
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131 lock.release() |
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132 state.assertreleasecalled(True) |
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133 state.assertpostreleasecalled(True) |
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134 state.assertlockexists(False) |
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135 |
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136 if __name__ == '__main__': |
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137 silenttestrunner.main(__name__) |