258         def check():

   258         def check():

   259             raise error.LockInheritanceContractViolation('check failed')

   259             raise error.LockInheritanceContractViolation('check failed')

   260         lock = state.makelock(inheritchecker=check)

   260         lock = state.makelock(inheritchecker=check)

   261         state.assertacquirecalled(True)

   261         state.assertacquirecalled(True)

   262 

   262 

   264             with lock.inherit():

   264             with lock.inherit():

   265                 pass

   265                 pass

   268 

   266 

   269         lock.release()

   267         lock.release()

   270 

   268 

   271     def testfrequentlockunlock(self):

   269     def testfrequentlockunlock(self):

   272         """This tests whether lock acquisition fails as expected, even if

   270         """This tests whether lock acquisition fails as expected, even if