R Under development (unstable) (2024-01-07 r85787 ucrt) -- "Unsuffered Consequences"
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Platform: x86_64-w64-mingw32/x64

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> # This file is part of the standard setup for testthat.
> # It is recommended that you do not modify it.
> #
> # Where should you do additional test configuration?
> # Learn more about the roles of various files in:
> # * https://r-pkgs.org/testing-design.html#sec-tests-files-overview
> # * https://testthat.r-lib.org/articles/special-files.html
> 
> library(testthat)
> library(PUPMCR)
> 
> test_check("PUPMCR")
Using PNG transparency (alpha channel) as background mask
From reference white:  
To reference white: D65
Converting 1000 randomly selected pixel(s) from sRGB color space to Lab color space
Accuracy of CIE Lab color space depends on specification of an appropriate white reference. See 'Color spaces' vignette for more information.
Using 2^3 = 8 total bins
New names:
* `B` -> `B...4`
* `B` -> `B...9`
Using PNG transparency (alpha channel) as background mask
RGB and HSV are device-dependent, perceptually non-uniform color spaces. See 'Color spaces' vignette for more information.


Using 2^3 = 8 total bins
New names:
* `B` -> `B...4`
* `B` -> `B...9`
Using PNG transparency (alpha channel) as background mask
From reference white:  
To reference white: D65
Converting 1000 randomly selected pixel(s) from sRGB color space to Lab color space
Accuracy of CIE Lab color space depends on specification of an appropriate white reference. See 'Color spaces' vignette for more information.
Using 2^3 = 8 total bins
New names:
* `B` -> `B...4`
* `B` -> `B...9`
Using PNG transparency (alpha channel) as background mask
RGB and HSV are device-dependent, perceptually non-uniform color spaces. See 'Color spaces' vignette for more information.


Using 2^3 = 8 total bins
New names:
* `B` -> `B...4`
* `B` -> `B...9`
Using PNG transparency (alpha channel) as background mask
From reference white:  
To reference white: D65
Converting 1000 randomly selected pixel(s) from sRGB color space to Lab color space
Accuracy of CIE Lab color space depends on specification of an appropriate white reference. See 'Color spaces' vignette for more information.
Using 2^3 = 8 total bins
New names:
* `B` -> `B...4`
* `B` -> `B...9`
Using PNG transparency (alpha channel) as background mask
RGB and HSV are device-dependent, perceptually non-uniform color spaces. See 'Color spaces' vignette for more information.


Using 2^3 = 8 total bins
New names:
* `B` -> `B...4`
* `B` -> `B...9`
[ FAIL 0 | WARN 0 | SKIP 0 | PASS 6 ]
> 
> proc.time()
   user  system elapsed 
   6.46    1.59    7.98