R version 4.4.0 alpha (2024-04-02 r86304 ucrt)
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> library(testthat)
> library(iNEXT.4steps)
> 
> test_check("iNEXT.4steps")
[ FAIL 0 | WARN 5 | SKIP 0 | PASS 14 ]

[ FAIL 0 | WARN 5 | SKIP 0 | PASS 14 ]
> 
> proc.time()
   user  system elapsed 
  30.90    1.03   31.92