R Under development (unstable) (2025-12-03 r89090 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/tests.html
> # * https://testthat.r-lib.org/reference/test_package.html#special-files
> 
> library(testthat)
> library(rmapshaper)
> 
> test_check("rmapshaper")
Starting 2 test processes.
[ FAIL 0 | WARN 0 | SKIP 60 | PASS 239 ]

══ Skipped tests (60) ══════════════════════════════════════════════════════════
• Not old v8 (1): 'test-clip_erase.R:308:3'
• On CRAN (28): 'test-dissolve.R:30:1', 'test-dissolve.R:64:1',
  'test-drop_null_geometries.R:1:1', 'test-explode.R:39:1',
  'test-explode.R:70:1', 'test-filter_fields.R:40:1',
  'test-filter_fields.R:50:1', 'test-clip_erase.R:24:1',
  'test-clip_erase.R:50:1', 'test-clip_erase.R:108:1',
  'test-clip_erase.R:140:1', 'test-clip_erase.R:172:1',
  'test-clip_erase.R:204:1', 'test-filter_islands.R:22:1',
  'test-filter_islands.R:56:1', 'test-filter_islands.R:78:1',
  'test-innerlines.R:1:1', 'test-lines.R:1:1', 'test-lines.R:21:1',
  'test-points.R:49:1', 'test-utils.R:73:1', 'test-simplify.R:65:1',
  'test-simplify.R:110:1', 'test-simplify.R:147:1', 'test-simplify.R:177:1',
  'test-simplify.R:212:1', 'test-simplify.R:316:1', 'test-simplify.R:343:1'
• has_sys_mapshaper() is not TRUE (30): 'test-apply_mapshaper_commands.R:2:3',
  'test-dissolve.R:22:3', 'test-dissolve.R:57:3', 'test-dissolve.R:88:3',
  'test-explode.R:31:3', 'test-explode.R:52:3', 'test-explode.R:66:3',
  'test-explode.R:87:3', 'test-filter_fields.R:32:3',
  'test-filter_fields.R:86:3', 'test-clip_erase.R:14:3',
  'test-clip_erase.R:46:3', 'test-clip_erase.R:77:3',
  'test-clip_erase.R:101:3', 'test-clip_erase.R:259:3',
  'test-clip_erase.R:281:3', 'test-clip_erase.R:294:3',
  'test-filter_islands.R:150:3', 'test-innerlines.R:34:3', 'test-lines.R:62:3',
  'test-points.R:25:3', 'test-points.R:42:3', 'test-points.R:83:3',
  'test-points.R:105:3', 'test-utils.R:99:3', 'test-simplify.R:61:3',
  'test-simplify.R:87:3', 'test-simplify.R:205:3', 'test-simplify.R:258:3',
  'test-simplify.R:270:3'
• possible bug in mapshaper https://github.com/mbloch/mapshaper/issues/487 (1):
  'test-filter_islands.R:117:3'

[ FAIL 0 | WARN 0 | SKIP 60 | PASS 239 ]
> 
> proc.time()
   user  system elapsed 
   2.76    0.32   12.73