def test_xl_cell_to_rowcol_abs(self):
        """Test xl_cell_to_rowcol_abs()"""

        tests = [
            # row, col, A1 string
            (0, 0, 'A1'),
            (0, 1, 'B1'),
            (0, 2, 'C1'),
            (0, 9, 'J1'),
            (1, 0, 'A2'),
            (2, 0, 'A3'),
            (9, 0, 'A10'),
            (1, 24, 'Y2'),
            (7, 25, 'Z8'),
            (9, 26, 'AA10'),
            (1, 254, 'IU2'),
            (1, 255, 'IV2'),
            (1, 256, 'IW2'),
            (0, 16383, 'XFD1'),
            (1048576, 16384, 'XFE1048577'),
        ]

        for row, col, string in tests:
            exp = (row, col, 0, 0)
            got = xl_cell_to_rowcol_abs(string)
            self.assertEqual(got, exp)