R Under development (unstable) (2024-09-23 r87189 ucrt) -- "Unsuffered Consequences"
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> library(testthat)
> library(diffdf)
> 
> test_check("diffdf")

Attaching package: 'purrr'

The following object is masked from 'package:testthat':

    is_null

NOTE: Variable INTEGER in compare was casted to numeric
[ FAIL 0 | WARN 0 | SKIP 9 | PASS 580 ]

══ Skipped tests (9) ═══════════════════════════════════════════════════════════
• On CRAN (9): 'test-class_compare.R:22:5',
  'test-identify_column_order.R:28:5', 'test-identify_column_order.R:124:5',
  'test-identify_column_order.R:143:5', 'test-miscellaneous.R:68:5',
  'test-miscellaneous.R:116:5', 'test-miscellaneous.R:203:5',
  'test-miscellaneous.R:230:5', 'test-print_output.R:14:5'

[ FAIL 0 | WARN 0 | SKIP 9 | PASS 580 ]
> 
> proc.time()
   user  system elapsed 
  11.73    0.89   12.62