The TESTFILES phase displays system page, swap, and dump file
    sizes calculated by AUTOGEN. (This phase does not change the file
    sizes.)

    File sizes for all currently installed primary and secondary
    page and swap files are displayed. The information is directed to
    SYS$OUTPUT and the AGEN$PARAMS.REPORT file by default.

    Specify the TESTFILES phase to display AUTOGEN's file size
    calculations; to generate new sized files, specify the GENFILES
    phase. You cannot specify both of these phases when invoking
    AUTOGEN. VSI recommends that you use TESTFILES to display the
    file size changes before actually generating new sized files on
    your system.

    The TESTFILES phase is valid only as an end phase. TESTFILES
    requires the SYSPRV privilege.