### Question:
ParseChar implements IsParser<Character> { @Override public void setCell(Character o, Cell cell, Field field) { if (o != null) { cell.setCellValue(o.toString()); } }  @Override Character parse(Object o, Field field); @Override void setCell(Character o, Cell cell, Field field);  }### Answer:
@Test public void setCell() throws Exception { Cell cell = CellGenerateUtil.create(); parseChar.setCell(null, cell, null); assertEquals("", cell.getStringCellValue()); parseChar.setCell(expected, cell, null); assertEquals("e", cell.getStringCellValue()); }