Method test_with

Lib/test/lock_tests.py:188–215

(self)

        self.assertEqual(len(bunch.finished), N)

    def test_with(self):
        lock = self.locktype()
        def f():
            lock.acquire()
            lock.release()

        def with_lock(err=None):
            with lock:
                if err is not None:
                    raise err

        # Acquire the lock, do nothing, with releases the lock
        with lock:
            pass

        # Check that the lock is unacquired
        with Bunch(f, 1):
            pass

        # Acquire the lock, raise an exception, with releases the lock
        with self.assertRaises(TypeError):
            with lock:
                raise TypeError

        # Check that the lock is unacquired even if after an exception
        # was raised in the previous "with lock:" block
        with Bunch(f, 1):
            pass

    def test_thread_leak(self):
        # The lock shouldn't leak a Thread instance when used from a foreign