R Under development (unstable) (2023-05-19 r84451 ucrt) -- "Unsuffered Consequences"
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> if (requireNamespace("testthat", quietly = TRUE)) {
+   library("checkmate")
+   library("testthat")
+   library("mlr3")
+   library("paradox")
+   library("mlr3pipelines")
+   test_check("mlr3pipelines")
+ }
Starting 2 test processes
[ FAIL 0 | WARN 7 | SKIP 79 | PASS 12920 ]

══ Skipped tests ═══════════════════════════════════════════════════════════════
• On CRAN (77)
• empty test (2)

[ FAIL 0 | WARN 7 | SKIP 79 | PASS 12920 ]
> 
> proc.time()
   user  system elapsed 
  27.68    1.21  103.03