R Under development (unstable) (2025-01-20 r87609 ucrt) -- "Unsuffered Consequences"
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> 
> if (requireNamespace("tinytest", quietly=TRUE) &&
+     utils::packageVersion("tinytest") >= "1.0.0") {
+ 
+     ## Set a seed to make the test deterministic
+     set.seed(42)
+ 
+     ## there are several more granular ways to test files in a tinytest directory,
+     ## see its package vignette; tests can also run once the package is installed
+     ## using the same command `test_package(pkgName)`, or by director or file
+     tinytest::test_package("ttdo", ncpu=getOption("Ncpus", 1), side_effects=TRUE)
+ }
starting worker pid=29936 on localhost:11012 at 16:36:08.440

test_equivalence.R............    2 tests OK  0.4s
All ok, 2 results (0.4s)
> 
> proc.time()
   user  system elapsed 
   0.23    0.03    1.14