R Under development (unstable) (2026-03-15 r89634 ucrt) -- "Unsuffered Consequences"
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> if (requireNamespace("testthat", quietly = TRUE)) {
+   library("testthat")
+   library("checkmate")
+   library("mlr3tuning")
+   test_check("mlr3tuning")
+ }
Loading required package: mlr3
Loading required package: paradox
[ FAIL 0 | WARN 0 | SKIP 25 | PASS 4655 ]

══ Skipped tests (25) ══════════════════════════════════════════════════════════
• On CRAN (24): 'test_ArchiveAsyncTuning.R:2:1',
  'test_ArchiveAsyncTuningFrozen.R:2:1', 'test_AutoTuner.R:640:3',
  'test_CallbackAsyncTuning.R:2:1', 'test_Tuner.R:53:1',
  'test_TunerAsyncDesignPoints.R:2:1', 'test_TunerAsyncGridSearch.R:2:1',
  'test_TunerAsyncRandomSearch.R:2:1',
  'test_TuningInstanceAsyncMultiCrit.R:2:1',
  'test_TuningInstanceAsyncSingleCrit.R:2:1', 'test_auto_tuner.R:25:3',
  'test_auto_tuner.R:49:3', 'test_mlr_callbacks.R:40:3',
  'test_mlr_callbacks.R:94:3', 'test_mlr_callbacks.R:120:3',
  'test_mlr_callbacks.R:146:3', 'test_mlr_callbacks.R:169:3',
  'test_mlr_callbacks.R:201:3', 'test_mlr_callbacks.R:229:3',
  'test_mlr_callbacks.R:264:3', 'test_mlr_callbacks.R:425:3',
  'test_mlr_callbacks.R:469:3', 'test_mlr_callbacks.R:497:3',
  'test_ti_async.R:2:1'
• On Windows (1): 'test_TunerBatchNLoptr.R:2:3'

[ FAIL 0 | WARN 0 | SKIP 25 | PASS 4655 ]
> 
> proc.time()
   user  system elapsed 
 305.39   12.12  317.56