@Test public void test_freePhysRecSize2FreeSlot_asserts(){

    try{
        engine.freePhysRecSize2FreeSlot(StorageDirect.MAX_RECORD_SIZE + 1);
        fail();
    }catch(IllegalArgumentException e){
        //expected
    }
    try{
        engine.freePhysRecSize2FreeSlot(-1);
        fail();
    }catch(IllegalArgumentException e){
        //expected
    }
}