R Under development (unstable) (2024-02-02 r85855 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(dupNodes)
> 
> test_check("dupNodes")

Attaching package: 'igraph'

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

    compare

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

    decompose, spectrum

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

    union

[ FAIL 0 | WARN 0 | SKIP 0 | PASS 16 ]
> 
> proc.time()
   user  system elapsed 
   0.62    0.10    0.71