content: /**
   * Copyright 2020 Alibaba Group Holding Limited.
   *
   * <p>Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
   * except in compliance with the License. You may obtain a copy of the License at
   *
   * <p>http://www.apache.org/licenses/LICENSE-2.0
   *
   * <p>Unless required by applicable law or agreed to in writing, software distributed under the
   * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
   * express or implied. See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package com.alibaba.graphscope.groot.tests.coordinator;
  
  import static org.junit.jupiter.api.Assertions.*;
  
  import com.alibaba.graphscope.groot.CuratorUtils;
  import com.alibaba.graphscope.groot.common.config.Configs;
  import com.alibaba.graphscope.groot.common.config.ZkConfig;
  import com.alibaba.graphscope.groot.meta.MetaStore;
  import com.alibaba.graphscope.groot.meta.ZkMetaStore;
  
  import org.apache.curator.framework.CuratorFramework;
  import org.apache.curator.test.TestingServer;
  import org.junit.jupiter.api.Test;
  
  public class ZkMetaStoreTest {
  
      @Test
      void testMetaStore() throws Exception {
          try (TestingServer testingServer = new TestingServer(-1)) {
              int zkPort = testingServer.getPort();
              Configs configs =
                      Configs.newBuilder()
                              .put(ZkConfig.ZK_CONNECT_STRING.getKey(), "localhost:" + zkPort)
                              .put(ZkConfig.ZK_BASE_PATH.getKey(), "test_meta_store")
                              .build();
              CuratorFramework curator = CuratorUtils.makeCurator(configs);
              curator.start();
              MetaStore metaStore = new ZkMetaStore(configs, curator);
              String path = "test_path";
              String data = "test_data";
  
              assertFalse(metaStore.exists(path));
              metaStore.write(path, data.getBytes());
              assertTrue(metaStore.exists(path));
              assertEquals(new String(metaStore.read(path)), data);
              metaStore.delete(path);
              assertFalse(metaStore.exists(path));
              curator.close();
          }
      }
  }
  