R Under development (unstable) (2024-07-28 r86931 ucrt) -- "Unsuffered Consequences"
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> message("*** startup_session_options() ...")
*** startup_session_options() ...
> 
> opts_0 <- startup::startup_session_options()
> utils::str(opts_0)
List of 5
 $ startup.session.startdir     : chr "d:/RCompile/CRANincoming/R-devel/startup.Rcheck/tests"
 $ startup.session.starttime    : POSIXct[1:1], format: "2024-07-29 23:35:40"
 $ startup.session.starttime_iso: chr "20240729-233540"
 $ startup.session.id           : chr "RtmpAXLseu"
 $ startup.session.dumpto       : chr "d:/RCompile/CRANincoming/R-devel/startup.Rcheck/tests/last.dump_20240729-233540_RtmpAXLseu"
> 
> opts_1 <- startup::startup_session_options(action = "update")
> utils::str(opts_1)
List of 5
 $ startup.session.startdir     : chr "d:/RCompile/CRANincoming/R-devel/startup.Rcheck/tests"
 $ startup.session.starttime    : POSIXct[1:1], format: "2024-07-29 23:35:40"
 $ startup.session.starttime_iso: chr "20240729-233540"
 $ startup.session.id           : chr "RtmpAXLseu"
 $ startup.session.dumpto       : chr "d:/RCompile/CRANincoming/R-devel/startup.Rcheck/tests/last.dump_20240729-233540_RtmpAXLseu"
> stopifnot(identical(opts_1, opts_0))
> 
> opts_2 <- startup::startup_session_options(action = "overwrite")
> utils::str(opts_2)
List of 5
 $ startup.session.startdir     : chr "d:/RCompile/CRANincoming/R-devel/startup.Rcheck/tests"
 $ startup.session.starttime    : POSIXct[1:1], format: "2024-07-29 23:35:40"
 $ startup.session.starttime_iso: chr "20240729-233540"
 $ startup.session.id           : chr "RtmpAXLseu"
 $ startup.session.dumpto       : chr "d:/RCompile/CRANincoming/R-devel/startup.Rcheck/tests/last.dump_20240729-233540_RtmpAXLseu"
> 
> opts_3 <- startup::startup_session_options(action = "erase")
> utils::str(opts_3)
 Named list()
> stopifnot(all(unlist(lapply(opts_3, FUN = is.null))))
> 
> opts_4 <- startup::startup_session_options()
> utils::str(opts_4)
List of 5
 $ startup.session.startdir     : chr "d:/RCompile/CRANincoming/R-devel/startup.Rcheck/tests"
 $ startup.session.starttime    : POSIXct[1:1], format: "2024-07-29 23:35:40"
 $ startup.session.starttime_iso: chr "20240729-233540"
 $ startup.session.id           : chr "RtmpAXLseu"
 $ startup.session.dumpto       : chr "d:/RCompile/CRANincoming/R-devel/startup.Rcheck/tests/last.dump_20240729-233540_RtmpAXLseu"
> 
> message("*** startup_session_options() ... DONE")
*** startup_session_options() ... DONE
> 
> proc.time()
   user  system elapsed 
   0.12    0.06    0.17