R Under development (unstable) (2026-02-26 r89489 ucrt) -- "Unsuffered Consequences"
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> if (requireNamespace("testthat", quietly = TRUE)) {
+   library(testthat)
+   library(checkmate)
+   library(mlr3mbo)
+   test_check("mlr3mbo")
+ }
Loading required package: mlr3
Loading required package: mlr3tuning
Loading required package: paradox

Attaching package: 'mlr3mbo'

The following object is masked from 'package:testthat':

    it

Loading required namespace: mlr3learners
Loading required namespace: DiceKriging
Loading required namespace: rgenoud
WARN  [12:33:06.180] [bbotk] Caught the following error: 
x Acquisition function optimization failed.
> Class: Mlr3ErrorMboAcqOptimizer
Caused by:
  Optimizer Error.

WARN  [12:33:06.604] [bbotk] Caught the following error: 
x Surrogate update failed.
> Class: Mlr3ErrorMboSurrogateUpdate
Caused by:
  x Surrogate Train Error.
  > Class: Mlr3ErrorLearnerTrain

WARN  [12:33:07.033] [bbotk] Caught the following error: 
x Acquisition function optimization failed.
> Class: Mlr3ErrorMboAcqOptimizer
Caused by:
  x Surrogate Predict Error.
  > Class: Mlr3ErrorLearnerPredict

[ FAIL 0 | WARN 0 | SKIP 18 | PASS 1174 ]

══ Skipped tests (18) ══════════════════════════════════════════════════════════
• On CRAN (18): 'test_AcqFunctionEHVIGH.R:35:3',
  'test_AcqFunctionStochasticCB.R:2:3', 'test_AcqFunctionStochasticCB.R:35:3',
  'test_AcqFunctionStochasticCB.R:67:3',
  'test_AcqFunctionStochasticCB.R:100:3',
  'test_AcqFunctionStochasticCB.R:133:3', 'test_AcqFunctionStochasticEI.R:2:3',
  'test_AcqFunctionStochasticEI.R:34:3', 'test_AcqFunctionStochasticEI.R:66:3',
  'test_OptimizerADBO.R:2:3', 'test_OptimizerAsyncMbo.R:2:3',
  'test_OptimizerAsyncMbo.R:24:3', 'test_OptimizerMbo.R:2:3',
  'test_ResultAssignerSurrogate.R:18:3', 'test_TunerADBO.R:2:3',
  'test_TunerAsyncMbo.R:2:3', 'test_TunerMbo.R:2:3', 'test_conditions.R:5:1'

[ FAIL 0 | WARN 0 | SKIP 18 | PASS 1174 ]
> 
> proc.time()
   user  system elapsed 
 140.82   11.79  375.37