SWITCH over SUMMARIZECOLUMNS based on parameter value

Hello, I have created parameter and based on that I would like to calculate dynamic table using SUMMARIZECOLUMNS function. Is that possible at all? Below you can find my DAX idea using SWITCH and IF however it does not work. I need a table as a result of SWITCH / IF statement.

EVALUATE
SWITCH (
    TRUE (),
    @Selected_Values = 0, SUMMARIZECOLUMNS ( 'Test Table'[Column] ),
    SUMMARIZECOLUMNS (
        'Test Table'[Column],
        KEEPFILTERS (
            FILTER (
                ALL ( 'Sources'[Source] ),
                PATHCONTAINS ( @Source, 'Sources'[Source] )
            )
        ),
        "Calculation", COUNTROWS ( 'Test Table' )
    )
)

And with IF:

EVALUATE
IF (
    @Selected_Values = 0,
    SUMMARIZECOLUMNS ( 'Test Table'[Column] ),
    SUMMARIZECOLUMNS (
        'Test Table'[Column],
        KEEPFILTERS (
            FILTER (
                ALL ( 'Sources'[Source] ),
                PATHCONTAINS ( @Source, 'Sources'[Source] )
            )
        ),
        "Calculation", COUNTROWS ( 'Test Table' )
    )
)

Thanks