R version 4.4.0 beta (2024-04-12 r86412 ucrt) -- "Puppy Cup"
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Platform: x86_64-w64-mingw32/x64

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> library(nanonext)
> requireNamespace("mirai", quietly = TRUE)
> library(promises)
> library(mirai.promises)
Registered S3 method overwritten by 'mirai.promises':
  method           from 
  as.promise.mirai mirai
> nanotest <- function(x) invisible(x || stop("is not TRUE when expected to be TRUE"))
> 
> s <- socket()
> r <- recv_aio(s)
> nanotest(is.promise(as.promise(r)))
> nanotest(is.promising(r))
> close(s)
> if (requireNamespace("mirai", quietly = TRUE)) {
+   nanotest(is.promise(p1 <- as.promise(mirai::mirai("completed"))))
+   nanotest(is.promise(p2 <- mirai::mirai("completed") %...>% identity()))
+   Sys.sleep(3L)
+ }
> nanotest(mirai.promises:::.[["pollfreq"]] == 0.1)
> nanotest(is.null(polling(freq = 1000)))
> nanotest(mirai.promises:::.[["pollfreq"]] == 1L)
> nanotest(is.null(polling()))
> nanotest(mirai.promises:::.[["pollfreq"]] == 0.1)
> 
> proc.time()
   user  system elapsed 
   0.29    0.09    3.48