'Test the _write_sheet_views() method with split panes'

def test_write_sheet_views6(self):

    self.worksheet.select()
    self.worksheet.split_panes(0, 45)
    self.worksheet._write_sheet_views()
    exp = '<sheetViews><sheetView    tabSelected="1"    workbookViewId="0"><pane    xSplit="5190"    topLeftCell="F1"/><selection    pane="topRight"    activeCell="F1"    sqref="F1"/></sheetView></sheetViews>'
    got = self.fh.getvalue()
    self.assertEqual(got, exp)
