R version 4.4.0 alpha (2024-03-31 r86238 ucrt)
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> library(testthat)
> library(smooth)
Loading required package: greybox
Package "greybox", v2.0.0 loaded.

This is package "smooth", v4.0.1

> 
> test_check("smooth")
[ FAIL 0 | WARN 0 | SKIP 74 | PASS 34 ]

══ Skipped tests (74) ══════════════════════════════════════════════════════════
• On CRAN (74): 'test_adam.R:18:5', 'test_adam.R:25:5', 'test_adam.R:32:5',
  'test_adam.R:39:5', 'test_adam.R:46:5', 'test_adam.R:55:5',
  'test_adam.R:62:5', 'test_adam.R:69:5', 'test_adam.R:77:5',
  'test_adam.R:83:5', 'test_adam.R:90:5', 'test_adam.R:97:5',
  'test_adam.R:113:5', 'test_adam.R:120:5', 'test_adam.R:127:5',
  'test_adam.R:134:5', 'test_adam.R:141:5', 'test_adam.R:150:5',
  'test_adam.R:157:5', 'test_adam.R:164:5', 'test_adam.R:174:5',
  'test_adam.R:181:5', 'test_adam.R:188:5', 'test_adam.R:195:5',
  'test_adam.R:202:5', 'test_adam.R:209:5', 'test_adam.R:216:5',
  'test_adam.R:226:5', 'test_adam.R:233:5', 'test_adam.R:240:5',
  'test_adam.R:247:5', 'test_adam.R:254:5', 'test_adam.R:262:5',
  'test_adam.R:269:5', 'test_adam.R:276:5', 'test_adam.R:283:5',
  'test_adam.R:292:5', 'test_adam.R:299:5', 'test_adam.R:306:5',
  'test_adam.R:313:5', 'test_adam.R:321:5', 'test_adam.R:328:5',
  'test_adam.R:337:5', 'test_adam.R:344:5', 'test_adam.R:351:5',
  'test_adam.R:358:5', 'test_adam.R:366:5', 'test_adam.R:374:5',
  'test_adam.R:381:5', 'test_adam.R:388:5', 'test_adam.R:397:5',
  'test_adam.R:406:5', 'test_adam.R:415:5', 'test_adam.R:424:5',
  'test_adam.R:433:5', 'test_adam.R:444:5', 'test_adam.R:451:5',
  'test_adam.R:458:5', 'test_adam.R:465:5', 'test_adam.R:474:5',
  'test_adam.R:483:5', 'test_ces.R:29:5', 'test_es.R:27:5', 'test_es.R:40:5',
  'test_es.R:51:5', 'test_es.R:58:5', 'test_gum.R:16:5', 'test_gum.R:23:5',
  'test_gum.R:33:5', 'test_gum.R:42:5', 'test_oes.R:29:5',
  'test_ssarima.R:16:5', 'test_ssarima.R:24:5', 'test_ssarima.R:31:5'

[ FAIL 0 | WARN 0 | SKIP 74 | PASS 34 ]
> 
> proc.time()
   user  system elapsed 
  16.18    0.93   17.18