@Test
    public void mergeByFollowerTest() {
        mergeTest(getRandomFollowerStore());
    }
Test method: {@link RheaKVStore#merge(String, String)}
jraft-rheakv/rheakv-core/src/test/java/com/alipay/sofa/jraft/rhea/storage/rhea/AbstractRheaKVStoreTest.java