@Test
public void testWithMissingValue() throws Exception {

  Reader reader = new FileReader("../data/fixed_width_missing_values.txt");
  FixedWidthReadOptions options =
      FixedWidthReadOptions.builder(reader)
          .header(true)
          .columnSpecs(car_fields_specs)
          .padding('_')
          .systemLineEnding()
          .missingValueIndicator("null")
          .minimizeColumnSizes()
          .sample(false)
          .build();
  Table t = Table.read().usingOptions(options);
  assertEquals(2, t.shortColumn(0).countMissing());
  assertEquals(2, t.stringColumn(1).countMissing());
  assertEquals(1, t.stringColumn(2).countMissing());
  assertEquals(3, t.stringColumn(3).countMissing());
}