R Under development (unstable) (2024-09-10 r87115 ucrt) -- "Unsuffered Consequences"
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> 
> if (Sys.getenv("NOT_CRAN") == "true") {
+   library(testthat)
+   library(pkgcache)
+   test_check("pkgcache", reporter = "summary")
+ }
> 
> proc.time()
   user  system elapsed 
   0.07    0.06    0.14