'Test xl_cell_to_rowcol_abs()'

def test_xl_cell_to_rowcol_abs(self):

    tests = [(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)
