author | Siddharth Agarwal <sid0@fb.com> |
Tue, 22 Sep 2015 14:09:42 -0700 | |
changeset 26321 | db4c192cb9b3 |
parent 26289 | c4b667a7a51d |
child 26381 | 94dc10834b79 |
permissions | -rw-r--r-- |
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from __future__ import absolute_import |
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import os |
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import silenttestrunner |
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import tempfile |
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import unittest |
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from mercurial import ( |
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lock, |
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scmutil, |
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) |
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testlockname = 'testlock' |
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class teststate(object): |
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def __init__(self, testcase): |
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self._testcase = testcase |
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self._acquirecalled = False |
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self._releasecalled = False |
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self._postreleasecalled = False |
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d = tempfile.mkdtemp(dir=os.getcwd()) |
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self.vfs = scmutil.vfs(d, audit=False) |
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def makelock(self, *args, **kwargs): |
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l = lock.lock(self.vfs, testlockname, releasefn=self.releasefn, |
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acquirefn=self.acquirefn, *args, **kwargs) |
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l.postrelease.append(self.postreleasefn) |
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return l |
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def acquirefn(self): |
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self._acquirecalled = True |
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def releasefn(self): |
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self._releasecalled = True |
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def postreleasefn(self): |
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self._postreleasecalled = True |
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def assertacquirecalled(self, called): |
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self._testcase.assertEqual( |
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self._acquirecalled, called, |
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'expected acquire to be %s but was actually %s' % ( |
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self._tocalled(called), |
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self._tocalled(self._acquirecalled), |
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)) |
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def resetacquirefn(self): |
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self._acquirecalled = False |
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def assertreleasecalled(self, called): |
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self._testcase.assertEqual( |
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self._releasecalled, called, |
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'expected release to be %s but was actually %s' % ( |
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self._tocalled(called), |
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self._tocalled(self._releasecalled), |
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)) |
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def assertpostreleasecalled(self, called): |
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self._testcase.assertEqual( |
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self._postreleasecalled, called, |
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'expected postrelease to be %s but was actually %s' % ( |
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self._tocalled(called), |
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self._tocalled(self._postreleasecalled), |
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)) |
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def assertlockexists(self, exists): |
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actual = self.vfs.lexists(testlockname) |
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self._testcase.assertEqual( |
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actual, exists, |
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'expected lock to %s but actually did %s' % ( |
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self._toexists(exists), |
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self._toexists(actual), |
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)) |
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def _tocalled(self, called): |
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if called: |
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return 'called' |
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else: |
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return 'not called' |
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def _toexists(self, exists): |
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if exists: |
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return 'exists' |
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else: |
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return 'not exists' |
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class testlock(unittest.TestCase): |
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def testlock(self): |
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state = teststate(self) |
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lock = state.makelock() |
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state.assertacquirecalled(True) |
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lock.release() |
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state.assertreleasecalled(True) |
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state.assertpostreleasecalled(True) |
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state.assertlockexists(False) |
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def testrecursivelock(self): |
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state = teststate(self) |
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lock = state.makelock() |
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state.assertacquirecalled(True) |
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state.resetacquirefn() |
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lock.lock() |
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# recursive lock should not call acquirefn again |
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state.assertacquirecalled(False) |
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lock.release() # brings lock refcount down from 2 to 1 |
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state.assertreleasecalled(False) |
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state.assertpostreleasecalled(False) |
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state.assertlockexists(True) |
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lock.release() # releases the lock |
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state.assertreleasecalled(True) |
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state.assertpostreleasecalled(True) |
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state.assertlockexists(False) |
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def testlockfork(self): |
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state = teststate(self) |
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lock = state.makelock() |
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state.assertacquirecalled(True) |
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lock.lock() |
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# fake a fork |
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lock.pid += 1 |
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lock.release() |
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state.assertreleasecalled(False) |
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state.assertpostreleasecalled(False) |
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state.assertlockexists(True) |
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|
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# release the actual lock |
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lock.pid -= 1 |
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lock.release() |
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state.assertreleasecalled(True) |
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state.assertpostreleasecalled(True) |
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state.assertlockexists(False) |
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135 |
|
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if __name__ == '__main__': |
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silenttestrunner.main(__name__) |