iotdb-core/tsfile/src/test/java/org/apache/iotdb/tsfile/file/metadata/MetadataIndexNodeTest.java

/*
 * 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,
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package org.apache.iotdb.tsfile.file.metadata;

import org.apache.iotdb.tsfile.file.IMetadataIndexEntry;
import org.apache.iotdb.tsfile.file.metadata.enums.MetadataIndexNodeType;

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

import java.util.ArrayList;
import java.util.List;

public class MetadataIndexNodeTest {

  @Test
  public void testBinarySearchInChildren() {
    List<IMetadataIndexEntry> list = new ArrayList<>();
    list.add(new MeasurementMetadataIndexEntry("s0", -1L));
    list.add(new MeasurementMetadataIndexEntry("s5", -1L));
    list.add(new MeasurementMetadataIndexEntry("s10", -1L));
    list.add(new MeasurementMetadataIndexEntry("s15", -1L));
    list.add(new MeasurementMetadataIndexEntry("s20", -1L));

    MetadataIndexNode metadataIndexNode =
        new MetadataIndexNode(list, -1L, MetadataIndexNodeType.LEAF_MEASUREMENT);
    Assert.assertEquals(0, metadataIndexNode.binarySearchInChildren("s0", false));
    Assert.assertEquals(2, metadataIndexNode.binarySearchInChildren("s10", false));
    Assert.assertEquals(2, metadataIndexNode.binarySearchInChildren("s13", false));
    Assert.assertEquals(4, metadataIndexNode.binarySearchInChildren("s23", false));
    Assert.assertEquals(-1, metadataIndexNode.binarySearchInChildren("s13", true));
    Assert.assertEquals(-1, metadataIndexNode.binarySearchInChildren("s23", true));
  }
}