assertNotNull(col);
assertNotNull(columnHelper.getColumn(3, false));
columnHelper.setColDefaultStyle(3, 2);
assertEquals(2, columnHelper.getColDefaultStyle(3));
assertEquals(-1, columnHelper.getColDefaultStyle(4));
StylesTable stylesTable = workbook.getStylesSource();
CTXf cellXf = CTXf.Factory.newInstance();
cellXf.setFontId(0);
cellXf.setFillId(0);
cellXf.setBorderId(0);
cellXf.setNumFmtId(0);
cellXf.setXfId(0);
stylesTable.putCellXf(cellXf);
CTCol col_2 = ctWorksheet.getColsArray(0).addNewCol();
col_2.setMin(10);
col_2.setMax(12);
col_2.setStyle(1);
assertEquals(1, columnHelper.getColDefaultStyle(11));