content: /*
   * 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 under the License.
   */
  package org.apache.arrow.vector;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertSame;
  
  import org.apache.arrow.memory.BufferAllocator;
  import org.apache.arrow.vector.types.IntervalUnit;
  import org.apache.arrow.vector.types.Types;
  import org.apache.arrow.vector.types.pojo.ArrowType;
  import org.apache.arrow.vector.util.TransferPair;
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  public class TestIntervalYearVector {
  
    private BufferAllocator allocator;
  
    @BeforeEach
    public void init() {
      allocator = new DirtyRootAllocator(Long.MAX_VALUE, (byte) 100);
    }
  
    @AfterEach
    public void terminate() throws Exception {
      allocator.close();
    }
  
    @Test
    public void testGetAsStringBuilder() {
      try (final IntervalYearVector vector = new IntervalYearVector("", allocator)) {
        int valueCount = 100;
        vector.setInitialCapacity(valueCount);
        vector.allocateNew();
        for (int i = 0; i < valueCount; i++) {
          vector.set(i, i);
        }
  
        assertEquals("0 years 1 month ", vector.getAsStringBuilder(1).toString());
        assertEquals("0 years 10 months ", vector.getAsStringBuilder(10).toString());
        assertEquals("1 year 8 months ", vector.getAsStringBuilder(20).toString());
        assertEquals("2 years 6 months ", vector.getAsStringBuilder(30).toString());
  
        assertEquals(Types.MinorType.INTERVALYEAR, vector.getMinorType());
        ArrowType fieldType = vector.getField().getType();
        assertEquals(ArrowType.ArrowTypeID.Interval, fieldType.getTypeID());
        ArrowType.Interval intervalType = (ArrowType.Interval) fieldType;
        assertEquals(IntervalUnit.YEAR_MONTH, intervalType.getUnit());
      }
    }
  
    @Test
    public void testGetTransferPairWithField() {
      final IntervalYearVector fromVector = new IntervalYearVector("", allocator);
      final TransferPair transferPair = fromVector.getTransferPair(fromVector.getField(), allocator);
      final IntervalYearVector toVector = (IntervalYearVector) transferPair.getTo();
      // Field inside a new vector created by reusing a field should be the same in memory as the
      // original field.
      assertSame(fromVector.getField(), toVector.getField());
    }
  }
  