private void putTest(RheaKVStore store) {
        // regions: 1 -> [null, g), 2 -> [g, null)
        byte[] key = makeKey("put_test");
        checkRegion(store, key, 2);
        byte[] value = store.bGet(key);
        assertNull(value);

        value = makeValue("put_test_value");
        store.bPut(key, value);
        byte[] newValue = store.bGet(key);
        assertArrayEquals(value, newValue);
    }
Test method: {@link RheaKVStore#put(byte[], byte[])}
jraft-rheakv/rheakv-core/src/test/java/com/alipay/sofa/jraft/rhea/storage/rhea/AbstractRheaKVStoreTest.java