def testLock():
    LOOPS = 50

    # The import lock may already be held, e.g. if the test suite is run
    # via "import test.autotest".
    lock_held_at_start = imp.lock_held()
    verify_lock_state(lock_held_at_start)

    for i in range(LOOPS):
        imp.acquire_lock()
        verify_lock_state(True)

    for i in range(LOOPS):
        imp.release_lock()

    # The original state should be restored now.
    verify_lock_state(lock_held_at_start)

    if not lock_held_at_start:
        try:
            imp.release_lock()
        except __HOLE__:
            pass
        else:
            raise TestFailed("release_lock() without lock should raise "
                             "RuntimeError")
dataset/ETHPy150Open babble/babble/include/jython/Lib/test/test_imp.py/testLock