R Under development (unstable) (2024-03-22 r86169 ucrt) -- "Unsuffered Consequences"
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> library(testit)
> test_pkg('xaringan')
Warning message:
In encode_file(f) : Failed to encode the file 2x2.gif
> if (rmarkdown::pandoc_available('1.12.3')) test_pkg('xaringan', 'test2')
Serving the directory D:\temp\RtmpElvLU1 at http://127.0.0.1:4321/file3b341e6ccf7.html
Serving the directory D:\temp\RtmpElvLU1 at http://127.0.0.1:4321/file3b341e6ccf7.html
> 
> proc.time()
   user  system elapsed 
   0.98    0.28    1.71