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| 1 # Copyright (c) 2005 Divmod, Inc. | |
| 2 # See LICENSE for details. | |
| 3 | |
| 4 from twisted.trial import unittest | |
| 5 from twisted.python import lockfile | |
| 6 | |
| 7 class LockingTestCase(unittest.TestCase): | |
| 8 def testBasics(self): | |
| 9 lockf = self.mktemp() | |
| 10 lock = lockfile.FilesystemLock(lockf) | |
| 11 self.failUnless(lock.lock()) | |
| 12 self.failUnless(lock.clean) | |
| 13 lock.unlock() | |
| 14 self.failUnless(lock.lock()) | |
| 15 self.failUnless(lock.clean) | |
| 16 lock.unlock() | |
| 17 | |
| 18 | |
| 19 def testProtection(self): | |
| 20 lockf = self.mktemp() | |
| 21 lock = lockfile.FilesystemLock(lockf) | |
| 22 self.failUnless(lock.lock()) | |
| 23 self.failUnless(lock.clean) | |
| 24 self.failIf(lock.lock()) | |
| 25 lock.unlock() | |
| 26 | |
| 27 | |
| 28 def testBigLoop(self): | |
| 29 lockf = self.mktemp() | |
| 30 lock = lockfile.FilesystemLock(lockf) | |
| 31 self.failUnless(lock.lock()) | |
| 32 for i in xrange(500): | |
| 33 self.failIf(lock.lock()) | |
| 34 lock.unlock() | |
| 35 | |
| 36 | |
| 37 def testIsLocked(self): | |
| 38 lockf = self.mktemp() | |
| 39 self.failIf(lockfile.isLocked(lockf)) | |
| 40 lock = lockfile.FilesystemLock(lockf) | |
| 41 self.failUnless(lock.lock()) | |
| 42 self.failUnless(lockfile.isLocked(lockf)) | |
| 43 lock.unlock() | |
| 44 self.failIf(lockfile.isLocked(lockf)) | |
| 45 | |
| 46 # A multiprocess test would be good here, for the sake of | |
| 47 # completeness. However, it is fairly safe to rely on the | |
| 48 # filesystem to provide the semantics we require. | |
| 49 | |
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Chromium Code Reviews
Issue 12261012:
Remove third_party/twisted_8_1 (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/tools/build