R Under development (unstable) (2023-04-26 r84330 ucrt) -- "Unsuffered Consequences"
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Platform: x86_64-w64-mingw32/x64 (64-bit)

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> library(testthat)
> library(units)
udunits database from D:/RCompile/CRANincoming/R-devel/lib/units/share/udunits/udunits2.xml
> 
> test_check("units")
[ FAIL 0 | WARN 0 | SKIP 7 | PASS 447 ]

══ Skipped tests ═══════════════════════════════════════════════════════════════
• On CRAN (6)
• empty test (1)

[ FAIL 0 | WARN 0 | SKIP 7 | PASS 447 ]
Deleting unused snapshots:
• plot/ggplot2-lab.svg
• plot/ggplot2-manual.svg
• plot/ggplot2-nolab.svg
• plot/ggplot2-transformed.svg
• plot/plot-boxplot.svg
• plot/plot-degree-c.svg
• plot/plot-division.svg
• plot/plot-hist.svg
• plot/plot-inverse.svg
• plot/plot-lab.svg
• plot/plot-line.svg
• plot/plot-nothing.svg
• plot/plot-npower.svg
• plot/plot-parentheses.svg
> do.call(units_options, units:::.default_options)
> 
> proc.time()
   user  system elapsed 
   8.54    0.32    8.87