### Question:
ParseByte implements IsParser<Byte> { @Override public void setCell(Byte o, Cell cell, Field field) { if (o != null) { cell.setCellValue(o); } }  @Override Byte parse(Object o, Field field); @Override void setCell(Byte o, Cell cell, Field field);  }### Answer:
@Test public void setCell() throws Exception { Cell cell = CellGenerateUtil.create(); parseByte.setCell(null, cell, null); assertEquals("", cell.getStringCellValue()); parseByte.setCell(Byte.valueOf(expected), cell, null); double result = Double.valueOf(expected); assertEquals(result, cell.getNumericCellValue(), 0.01d); }