R Under development (unstable) (2023-07-06 r84647 ucrt) -- "Unsuffered Consequences"
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> library(testthat)
> library(canadianmaps)
> 
> test_check("canadianmaps")
The legacy packages maptools, rgdal, and rgeos, underpinning the sp package,
which was just loaded, will retire in October 2023.
Please refer to R-spatial evolution reports for details, especially
https://r-spatial.org/r/2023/05/15/evolution4.html.
It may be desirable to make the sf package available;
package maintainers should consider adding sf to Suggests:.
The sp package is now running under evolution status 2
     (status 2 uses the sf package in place of rgdal)
[ FAIL 1 | WARN 2 | SKIP 0 | PASS 5 ]

══ Failed tests ════════════════════════════════════════════════════════════════
── Error ('test-functions.R:36:3'): check-functions: coord_transform() returns a dataframe ──
Error in `sp::spTransform(data, sp::CRS("+proj=lcc +lat_1=49 +lat_2=77 +lon_0=-91.52 +x_0=0 +y_0=0 +datum=NAD83 +units=m +no_defs"))`: sf required for evolution_status==2L
Backtrace:
    ▆
 1. ├─data %>% coord_transform(long = "long", lat = "lat") at test-functions.R:36:2
 2. └─canadianmaps::coord_transform(., long = "long", lat = "lat")
 3.   ├─sp::spTransform(data, sp::CRS("+proj=lcc +lat_1=49 +lat_2=77 +lon_0=-91.52 +x_0=0 +y_0=0 +datum=NAD83 +units=m +no_defs"))
 4.   └─sp::spTransform(data, sp::CRS("+proj=lcc +lat_1=49 +lat_2=77 +lon_0=-91.52 +x_0=0 +y_0=0 +datum=NAD83 +units=m +no_defs"))

[ FAIL 1 | WARN 2 | SKIP 0 | PASS 5 ]
Error: Test failures
Execution halted