R Under development (unstable) (2026-01-27 r89337 ucrt) -- "Unsuffered Consequences"
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> library("testthat")
> library("bittermelon")
> 
> test_check("bittermelon")
[ FAIL 0 | WARN 0 | SKIP 45 | PASS 226 ]

══ Skipped tests (45) ══════════════════════════════════════════════════════════
• On CRAN (44): 'test-bm_bitmap.R:27:2', 'test-bm_clamp.R:49:2',
  'test-bm_distort.R:68:2', 'test-bm_expand.R:21:2', 'test-bm_extend.R:39:2',
  'test-bm_extend.R:106:2', 'test-bm_extend.R:127:2', 'test-bm_extend.R:152:2',
  'test-bm_extend.R:178:2', 'test-bm_extract.R:14:2', 'test-bm_flip.R:23:2',
  'test-bm_gray.R:14:2', 'test-bm_invert.R:14:2', 'test-bm_list.R:48:2',
  'test-bm_list.R:107:2', 'test-bm_list.R:113:2', 'test-bm_list.R:127:2',
  'test-bm_list.R:150:2', 'test-bm_list.R:169:2', 'test-bm_mask.R:35:2',
  'test-bm_outline.R:17:2', 'test-bm_overlay.R:30:2', 'test-bm_overlay.R:74:2',
  'test-bm_pad.R:56:2', 'test-bm_pixmap.R:57:2', 'test-bm_replace.R:17:2',
  'test-bm_shift.R:17:2', 'test-bm_trim.R:11:2', 'test-bm_trim.R:38:2',
  'test-bm_trim.R:59:2', 'test-bm_trim.R:85:2', 'test-bm_trim.R:110:2',
  'test-bm_trim.R:133:2', 'test-bm_trim.R:141:2', 'test-bm_trim.R:154:2',
  'test-gridpattern.R:3:2', 'test-hex.R:37:2', 'test-plot.R:1:1',
  'test-plot.R:12:1', 'test-plot.R:19:1', 'test-plot.R:37:1',
  'test-plot.R:52:1', 'test-print.bm_bitmap.R:8:2',
  'test-print.bm_pixmap.R:13:2'
• nzchar(Sys.which("monobit-convert")) is not TRUE (1): 'test-monobit.R:2:2'

[ FAIL 0 | WARN 0 | SKIP 45 | PASS 226 ]
> 
> proc.time()
   user  system elapsed 
  25.79    1.70   27.04