R Under development (unstable) (2023-11-23 r85618 ucrt) -- "Unsuffered Consequences"
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> if (requireNamespace("tinytest", quietly = TRUE)) {
+ 
+   # extended testing (at_home = TRUE) for CI
+   # but not to be executed on CRAN (where
+   # released versions have 3 components)
+ 
+   # see section 4.4 in vignette("using_tinytest", "tinytest")
+   cran <- length(unclass(packageVersion("ctrdata"))[[1]]) == 3
+   # cran <- TRUE
+ 
+   # do testing unless on CRAN
+   if (!cran) {
+ 
+     tt <- tinytest::test_package(
+       pkgname = "ctrdata",
+       color = FALSE,
+       at_home = !cran)
+ 
+     saveRDS(
+       object = tt,
+       file = "tinytest.rds")
+   }
+ 
+ }
> 
> proc.time()
   user  system elapsed 
   0.21    0.09    0.25