R Under development (unstable) (2026-03-07 r89568 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/testing-design.html#sec-tests-files-overview
> # * https://testthat.r-lib.org/articles/special-files.html
> 
> library(testthat)
> library(seader)
> 
> test_check("seader")

Attaching package: 'dplyr'

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union

The tzdb package is not installed. Timezones will not be available to Arrow compute functions.
[ FAIL 0 | WARN 0 | SKIP 6 | PASS 2 ]

══ Skipped tests (6) ═══════════════════════════════════════════════════════════
• On CRAN (6): 'test-read_birth.R:19:3', 'test-read_birth.R:29:3',
  'test-read_birth.R:41:3', 'test-read_birth.R:64:3', 'test-read_birth.R:74:3',
  'test-read_birth.R:86:3'

[ FAIL 0 | WARN 0 | SKIP 6 | PASS 2 ]
> 
> proc.time()
   user  system elapsed 
   1.03    0.25    1.26