'Test get_worksheet_by_name()'

def test_get_worksheet_by_name04(self):

    fh = StringIO()
    workbook = Workbook()
    workbook._set_filehandle(fh)
    exp = workbook.add_worksheet("Sheet    '4")
    got = workbook.get_worksheet_by_name("Sheet    '4")
    workbook.fileclosed = 1
    self.assertEqual(got, exp)
