def METHOD_NAME(self):
    # This is the layout for displaying numbers from 0-9 with column
    # major setup:
    # 0  2  3  4
    # 1  /  /  /
    # The index should be populated (row first) in this order:
    # 0, 2, 3, 4, 1
    actual = column_major_to_row_major(
        index=4,
        n=5,
        num_rows=2,
        num_cols=4,
    )
    self.assertEqual(actual, 3)