/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * 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
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package org.apache.iotdb.db.queryengine.plan.plan.node.process;

import org.apache.iotdb.commons.exception.IllegalPathException;
import org.apache.iotdb.db.queryengine.plan.plan.node.PlanNodeDeserializeHelper;
import org.apache.iotdb.db.queryengine.plan.planner.plan.node.PlanNodeId;
import org.apache.iotdb.db.queryengine.plan.planner.plan.node.process.SingleDeviceViewNode;

import org.junit.Assert;
import org.junit.Test;

import java.nio.ByteBuffer;
import java.util.Arrays;
import java.util.List;

public class SingleDeviceViewNodeSerdeTest {

  private static final List<String> outputColumnNames = Arrays.asList("Time", "Device", "value");

  @Test
  public void testCacheOutputColumnNames() throws IllegalPathException {
    SingleDeviceViewNode singleDeviceViewNode =
        new SingleDeviceViewNode(
            new PlanNodeId("TestSingleDeviceViewNode"),
            outputColumnNames,
            "TestDevice",
            Arrays.asList(1, 2));

    // when cache is false
    ByteBuffer byteBufferWithoutCache = ByteBuffer.allocate(2048);
    singleDeviceViewNode.serialize(byteBufferWithoutCache);
    byteBufferWithoutCache.flip();
    Assert.assertNull(
        PlanNodeDeserializeHelper.deserialize(byteBufferWithoutCache).getOutputColumnNames());

    // when cache is true
    singleDeviceViewNode.setCacheOutputColumnNames(true);
    ByteBuffer byteBufferWithCache = ByteBuffer.allocate(2048);
    singleDeviceViewNode.serialize(byteBufferWithCache);
    byteBufferWithCache.flip();
    Assert.assertEquals(
        PlanNodeDeserializeHelper.deserialize(byteBufferWithCache), singleDeviceViewNode);
  }
}
