public void GetValue_Nullable()
{
var cell = new XLWorkbook().AddWorksheet().FirstCell();
Assert.IsNull(cell.Clear().GetValue <double?>());
Assert.AreEqual(1.5, cell.SetValue(1.5).GetValue <double?>());
Assert.AreEqual(2, cell.SetValue(1.5).GetValue <int?>());
Assert.AreEqual(2.5, cell.SetValue("2.5").GetValue <double?>());
Assert.Throws <FormatException>(() => cell.SetValue("text").GetValue <double?>());
}
