@Test
public void createAnnotationRowTest() {

    // given
    XSSFWorkbook workbook = new XSSFWorkbook();
    XSSFSheet sheet = workbook.createSheet();
    Row r = sheet.createRow(0);
    List<String> l = Arrays.asList("a", "b", "c");
    // when
    PivotUtils.createAnnotationRow(r,l);
    // then
    Assertions.assertThat(r.getCell(0).getStringCellValue()).isEqualTo("a");
    Assertions.assertThat(r.getCell(1).getStringCellValue()).isEqualTo("b");
    Assertions.assertThat(r.getCell(2).getStringCellValue()).isEqualTo("c");
}