@Test
public void testGetCurrentCacheSize() {

  AbstractCacheWrapper uut = new AbstractCacheWrapper(entries, storageAll,
      IDataCache.STD_MAX_CACHE_SIZE, predicate -> true);
  assertEquals(0, uut.getCurrentCacheSize());
  uut.cacheData(c0);
  assertEquals(c0.getByteSize(), uut.getCurrentCacheSize());
  uut.cacheData(c1);
  assertEquals(c0.getByteSize() + c1.getByteSize(), uut.getCurrentCacheSize());
}