@Test
  public void testBitVector() {
    // Build a required boolean field definition
    MajorType.Builder typeBuilder = MajorType.newBuilder();
    FieldDef.Builder defBuilder = FieldDef.newBuilder();
    typeBuilder.setMinorType(MinorType.BIT).setMode(DataMode.REQUIRED).setWidth(4);
    defBuilder.setMajorType(typeBuilder.build());
    MaterializedField field = MaterializedField.create(defBuilder.build());

    // Create a new value vector for 1024 integers
    BitVector v = new BitVector(field, allocator);
    BitVector.Mutator m = v.getMutator();
    v.allocateNew(1024);

    // Put and set a few values
    m.set(0, 1);
    m.set(1, 0);
    m.set(100, 0);
    m.set(1022, 1);
    assertEquals(1, v.getAccessor().get(0));
    assertEquals(0, v.getAccessor().get(1));
    assertEquals(0, v.getAccessor().get(100));
    assertEquals(1, v.getAccessor().get(1022));

    // test setting the same value twice
    m.set(0, 1);
    m.set(0, 1);
    m.set(1, 0);
    m.set(1, 0);
    assertEquals(1, v.getAccessor().get(0));
    assertEquals(0, v.getAccessor().get(1));

    // test toggling the values
    m.set(0, 0);
    m.set(1, 1);
    assertEquals(0, v.getAccessor().get(0));
    assertEquals(1, v.getAccessor().get(1));

    // Ensure unallocated space returns 0
    assertEquals(0, v.getAccessor().get(3));
  }
  @Test
  public void testBitVector() {
    final MaterializedField field = MaterializedField.create(EMPTY_SCHEMA_PATH, BitHolder.TYPE);

    // Create a new value vector for 1024 integers
    try (final BitVector vector = new BitVector(field, allocator)) {
      final BitVector.Mutator m = vector.getMutator();
      vector.allocateNew(1024);

      // Put and set a few values
      m.set(0, 1);
      m.set(1, 0);
      m.set(100, 0);
      m.set(1022, 1);

      final BitVector.Accessor accessor = vector.getAccessor();
      assertEquals(1, accessor.get(0));
      assertEquals(0, accessor.get(1));
      assertEquals(0, accessor.get(100));
      assertEquals(1, accessor.get(1022));

      // test setting the same value twice
      m.set(0, 1);
      m.set(0, 1);
      m.set(1, 0);
      m.set(1, 0);
      assertEquals(1, accessor.get(0));
      assertEquals(0, accessor.get(1));

      // test toggling the values
      m.set(0, 0);
      m.set(1, 1);
      assertEquals(0, accessor.get(0));
      assertEquals(1, accessor.get(1));

      // Ensure unallocated space returns 0
      assertEquals(0, accessor.get(3));
    }
  }