R Under development (unstable) (2023-09-17 r85158 ucrt) -- "Unsuffered Consequences"
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Platform: x86_64-w64-mingw32/x64

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> 
> library(testthat)
> library(renv, warn.conflicts = FALSE)
> 
> if (!renv:::renv_tests_supported()) {
+   message("* renv does not support running tests on this platform.")
+   if (!interactive()) quit(status = 0L)
+ }
* renv does not support running tests on this platform.
> proc.time()
   user  system elapsed 
   0.39    0.07    0.45