R Under development (unstable) (2024-07-28 r86931 ucrt) -- "Unsuffered Consequences"
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> library(testthat)
> library(quantities)
Loading required package: units
udunits database from D:/RCompile/CRANpkg/lib/4.5/units/share/udunits/udunits2.xml
Loading required package: errors
> 
> test_check("quantities")
[ FAIL 0 | WARN 0 | SKIP 2 | PASS 705 ]

══ Skipped tests (2) ═══════════════════════════════════════════════════════════
• Installed units is version 0.8.5; but 0.8-5.5 is required (1):
  'test-plot.R:39:3'
• On CRAN (1): 'test-plot.R:11:3'

[ FAIL 0 | WARN 0 | SKIP 2 | PASS 705 ]
Deleting unused snapshots:
• plot/ggplot2-automatic-scale.svg
• plot/ggplot2-automatic.svg
• plot/ggplot2-explicit-scale.svg
• plot/ggplot2-explicit.svg
• plot/ggplot2-x-scale.svg
• plot/ggplot2-x.svg
• plot/ggplot2-y-scale.svg
• plot/ggplot2-y.svg
• plot/plot-x-drop-errors.svg
• plot/plot-x-drop-units.svg
• plot/plot-x.svg
• plot/plot-xy-drop-errors-x.svg
• plot/plot-xy-drop-errors-y.svg
• plot/plot-xy-drop-quantities-y.svg
• plot/plot-xy-drop-units-x.svg
• plot/plot-xy-drop-units-y.svg
• plot/plot-xy.svg
> 
> detach("package:quantities", unload = TRUE)
> 
> proc.time()
   user  system elapsed 
    5.0     0.5     5.5