R Under development (unstable) (2024-08-17 r87027 ucrt) -- "Unsuffered Consequences"
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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(leaflet)
> library(leaflet.extras)
> 
> test_check("leaflet.extras")
Linking to GEOS 3.12.1, GDAL 3.8.4, PROJ 9.3.1; sf_use_s2() is TRUE
Reading layer `geodesic_lines' from data source 
  `D:\RCompile\CRANincoming\R-devel\lib\leaflet.extras\examples\data\geodesic_lines.shp' 
  using driver `ESRI Shapefile'
Simple feature collection with 2 features and 2 fields
Geometry type: LINESTRING
Dimension:     XY
Bounding box:  xmin: -4.921875 ymin: 31.71543 xmax: 66.09375 ymax: 64.93484
Geodetic CRS:  WGS 84
! curl package not installed, falling back to using `url()`
! curl package not installed, falling back to using `url()`
! curl package not installed, falling back to using `url()`
! curl package not installed, falling back to using `url()`
[ FAIL 0 | WARN 0 | SKIP 0 | PASS 894 ]
> 
> proc.time()
   user  system elapsed 
   6.04    0.89    8.71