R Under development (unstable) (2025-08-31 r88749 ucrt) -- "Unsuffered Consequences"
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> library(testthat)
> library(atom4R)
> test_check("atom4R")
[atom4R][INFO] Object 'DCEntry' is VALID according to Atom XML schemas! 
[ FAIL 0 | WARN 0 | SKIP 5 | PASS 2 ]

══ Skipped tests (5) ═══════════════════════════════════════════════════════════
• On CRAN (5): 'test_AtomEntry.R:13:3', 'test_AtomEntry.R:60:3',
  'test_AtomFeed.R:13:3', 'test_DCElement.R:13:3', 'test_DCEntry.R:13:3'

[ FAIL 0 | WARN 0 | SKIP 5 | PASS 2 ]
> 
> proc.time()
   user  system elapsed 
   2.96    0.42    3.51