R Under development (unstable) (2023-07-18 r84705 ucrt) -- "Unsuffered Consequences"
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> library(testthat)
> library(viridis)
Loading required package: viridisLite
> library(ggplot2)
> library(MASS)
> library(gridExtra)
> 
> test_check("viridis")
[ FAIL 0 | WARN 0 | SKIP 1 | PASS 5 ]

══ Skipped tests (1) ═══════════════════════════════════════════════════════════
• On CRAN (1): 'test-viridis.R:25:3'

[ FAIL 0 | WARN 0 | SKIP 1 | PASS 5 ]
> 
> proc.time()
   user  system elapsed 
   1.25    0.25    1.53