// Release regions
        bufferManager.releaseSendRegion(region1);
        bufferManager.releaseReceiveRegion(region2);
    }

    @Test
    public void testCleanup() throws Exception {
        // Allocate some regions from the pool and then release them back
        RdmaMemoryRegion region1 = bufferManager.getSendRegion(1024);

        assertSame(thumbnailJob, result);
        assertEquals(4, thumbnailJob.numOfThreads);
    }

    // Test cleanup setter
    public void test_cleanup() {
        assertFalse(thumbnailJob.cleanup);

        GenerateThumbnailJob result = thumbnailJob.cleanup();

        assertSame(thumbnailJob, result);
        assertTrue(thumbnailJob.cleanup);
    }