### Question:
RocksdbObjectDatabase extends RocksdbObjectStore implements ObjectDatabase { public @Override RocksdbBlobStore getBlobStore() { return blobs; } RocksdbObjectDatabase(@NonNull File dbdir, boolean readOnly); @Override RocksdbBlobStore getBlobStore(); @Override GraphDatabase getGraphDatabase(); @Override synchronized void open(); @Override synchronized void close(); @Override boolean put(final RevObject object);  }### Answer:
@Test public void testAccessors() { assertFalse(db.isReadOnly()); BlobStore blobStore = db.getBlobStore(); assertTrue(blobStore instanceof RocksdbBlobStore); }