public void 書き込んだDoubleをNumericCellValueで取得できること ()
		{
			var expected = 1.2D;
			var fileName = Path.GetTempFileName ();
			var table = new DataTable ("Sheet 1");
			table.Columns.Add ("C1", typeof(double));
			table.Rows.Add (expected);
			table.WriteXls (this._fileName);
			var workbook = OpenWorkbook (this._fileName);
			var cell = workbook.GetSheetAt (0).GetRow (0).GetCell (0);
			Assert.That (cell.CellType, Is.EqualTo (NPOI.SS.UserModel.CellType.NUMERIC));
			Assert.That (cell.NumericCellValue, Is.EqualTo (expected));
		}
		public void 書き込んだDateTimeをDateCellValueで取得できること ()
		{
			var today = DateTime.Today;
			var fileName = Path.GetTempFileName ();
			var table = new DataTable ("Sheet 1");
			table.Columns.Add ("C1", typeof(DateTime));
			table.Rows.Add (today);
			table.WriteXls (this._fileName);
			var workbook = OpenWorkbook (this._fileName);
			var cell = workbook.GetSheetAt (0).GetRow (0).GetCell (0);
			Assert.That (cell.CellType, Is.EqualTo (NPOI.SS.UserModel.CellType.NUMERIC));
			Assert.That (cell.DateCellValue, Is.EqualTo (today));
		}
		public void 書き込んだDateTimeNowをDateCellValueで取得できること ()
		{
			var now = DateTime.UtcNow;
			var fileName = Path.GetTempFileName ();
			var table = new DataTable ("Sheet 1");
			table.Columns.Add ("C1", typeof(DateTime));
			table.Rows.Add (now);
			table.WriteXls (this._fileName);
			var workbook = OpenWorkbook (this._fileName);
			var cell = workbook.GetSheetAt (0).GetRow (0).GetCell (0);
			Assert.That (cell.CellType, Is.EqualTo (NPOI.SS.UserModel.CellType.NUMERIC));
			// EqualTo だと失敗する (内部的に double で保持しているためと考える
			Assert.That (cell.DateCellValue.ToString (), Is.EqualTo (now.ToString ()));
		}
		public void 書き込んだBooleanをBooleanCellValueで取得できること ()
		{
			var fileName = Path.GetTempFileName ();
			var table = new DataTable ("Sheet 1");
			table.Columns.Add ("C1", typeof(bool));
			table.Rows.Add (true);
			table.WriteXls (this._fileName);
			var workbook = OpenWorkbook (this._fileName);
			var cell = workbook.GetSheetAt (0).GetRow (0).GetCell (0);
			Assert.That (cell.CellType, Is.EqualTo (NPOI.SS.UserModel.CellType.BOOLEAN));
			Assert.That (cell.BooleanCellValue, Is.True);
		}