@Test
public void getBulk() throws TimeoutException, CacheException {

    Collection<String> keys = ImmutableSet.of("key1", "key2");
    cache.getBulk(keys, SerializationType.PROVIDER);
    Mockito.verify(cacheClient).getBulk(sameItems(getKeys(keys)));
    cache.getBulk(keys, SerializationType.JSON);
    Mockito.verify(cacheClient).getBulk(sameItems(getKeys(keys)), Mockito.eq(jsonTranscoder));
}