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.validate;
  
  import static org.apache.arrow.vector.util.ValueVectorUtility.validate;
  import static org.apache.arrow.vector.util.ValueVectorUtility.validateFull;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  import org.apache.arrow.memory.ArrowBuf;
  import org.apache.arrow.memory.BufferAllocator;
  import org.apache.arrow.memory.RootAllocator;
  import org.apache.arrow.vector.IntVector;
  import org.apache.arrow.vector.VarCharVector;
  import org.apache.arrow.vector.VectorSchemaRoot;
  import org.apache.arrow.vector.testing.ValueVectorDataPopulator;
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  public class TestValidateVectorSchemaRoot {
  
    private BufferAllocator allocator;
  
    @BeforeEach
    public void init() {
      allocator = new RootAllocator(Long.MAX_VALUE);
    }
  
    @AfterEach
    public void terminate() throws Exception {
      allocator.close();
    }
  
    @Test
    public void testValidatePositive() {
      try (IntVector intVector = new IntVector("int vector", allocator);
          VarCharVector strVector = new VarCharVector("var char vector", allocator)) {
  
        VectorSchemaRoot root = VectorSchemaRoot.of(intVector, strVector);
  
        validate(root);
        validateFull(root);
  
        ValueVectorDataPopulator.setVector(intVector, 1, 2, 3, 4, 5);
        ValueVectorDataPopulator.setVector(strVector, "a", "b", "c", "d", "e");
        root.setRowCount(5);
  
        validate(root);
        validateFull(root);
      }
    }
  
    @Test
    public void testValidateNegative() {
      try (IntVector intVector = new IntVector("int vector", allocator);
          VarCharVector strVector = new VarCharVector("var char vector", allocator)) {
  
        VectorSchemaRoot root = VectorSchemaRoot.of(intVector, strVector);
  
        ValueVectorDataPopulator.setVector(intVector, 1, 2, 3, 4, 5);
        ValueVectorDataPopulator.setVector(strVector, "a", "b", "c", "d", "e");
  
        // validate mismatching value counts
        root.setRowCount(4);
        intVector.setValueCount(5);
        strVector.setValueCount(5);
        ValidateUtil.ValidateException e =
            assertThrows(ValidateUtil.ValidateException.class, () -> validate(root));
        assertTrue(
            e.getMessage()
                .contains("Child vector and vector schema root have different value counts"));
        e = assertThrows(ValidateUtil.ValidateException.class, () -> validateFull(root));
        assertTrue(
            e.getMessage()
                .contains("Child vector and vector schema root have different value counts"));
  
        // valid problems with the child vector
        root.setRowCount(5);
        ArrowBuf offsetBuf = strVector.getOffsetBuffer();
        offsetBuf.setInt(0, 100);
        offsetBuf.setInt(8, 50);
        validate(root);
        e = assertThrows(ValidateUtil.ValidateException.class, () -> validateFull(root));
        assertTrue(
            e.getMessage()
                .contains("The values in positions 0 and 1 of the offset buffer are decreasing"));
      }
    }
  }
  