R Under development (unstable) (2025-06-09 r88292 ucrt) -- "Unsuffered Consequences"
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> library(testthat)
> library(m2r)
Loading required package: mpoly
  Please cite m2r! See citation("m2r") for details.
  M2 not found; defaulting to cloud.
  Use set_m2_path("/path/to/m2") to run M2 locally.
> 
> test_check("m2r")
M2 Ring: CC[x,y], grevlex order
[ FAIL 0 | WARN 0 | SKIP 41 | PASS 7 ]

══ Skipped tests (41) ══════════════════════════════════════════════════════════
• On CRAN (41): 'test-factor_n.R:4:3', 'test-factor_n.R:26:3',
  'test-factor_n.R:37:3', 'test-factor_n.R:52:3', 'test-factor_poly.R:5:3',
  'test-factor_poly.R:36:3', 'test-factor_poly.R:78:3', 'test-gb.R:4:3',
  'test-gb.R:28:3', 'test-gb.R:44:3', 'test-gb.R:61:3', 'test-gb.R:77:3',
  'test-gb.R:93:3', 'test-gb.R:105:3', 'test-gb.R:122:3', 'test-ideal.R:21:3',
  'test-ideal.R:39:3', 'test-ideal.R:57:3', 'test-ideal.R:75:3',
  'test-ideal.R:93:3', 'test-ideal.R:111:3', 'test-ideal.R:129:3',
  'test-ideal.R:173:3', 'test-ideal.R:195:3', 'test-ideal.R:217:3',
  'test-ideal.R:239:3', 'test-ideal.R:261:3', 'test-ideal.R:283:3',
  'test-ideal.R:311:3', 'test-m2.R:4:3', 'test-m2.R:10:3', 'test-m2.R:16:3',
  'test-m2.R:26:3', 'test-m2_matrix.R:5:3', 'test-m2_matrix.R:45:3',
  'test-m2_parser.R:11:3', 'test-m2_parser.R:126:3', 'test-ring.R:12:3',
  'test-snf.R:5:3', 'test-snf.R:87:3', 'test-snf.R:148:3'

[ FAIL 0 | WARN 0 | SKIP 41 | PASS 7 ]
> 
> proc.time()
   user  system elapsed 
   3.00    0.42    3.42