@Test
public void streamColumn() throws Exception {

    final List<String> column2 = table.getColumn(1).stream()
            .map(Data.Cell::getData)
            .collect(Collectors.toList());
    assertEquals("first_name\n" +
            "Wendie\n" +
            "Derry\n" +
            "Heidi\n" +
            "Elladine\n" +
            "Erl", Join.join("\n", column2));
}