    @Test
    public void testGetNestedPrefixKeyS3Protocol() throws URISyntaxException {

        String backupName = "backup-name";
        String nestedPath = "nested-path";
        BackupRestoreContext backupRestoreContext = BackupRestoreContext.create(
                "node-id",
                backupName,
                "s3://cassandrabackup/" + nestedPath,
                "local-location",
                "account-id",
                "secret-key",
                false,
                "existing");
        Assert.assertEquals(nestedPath + "/" + backupName, s3StorageDriver.getPrefixKey(backupRestoreContext));
    }