R version 4.6.0 RC (2026-04-17 r89914 ucrt) -- "Because it was There"
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Platform: x86_64-w64-mingw32/x64

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> library(testthat)
> library(IRTM)
Loading required package: truncnorm
Loading required package: tmvtnorm
Loading required package: mvtnorm
Loading required package: Matrix
Loading required package: stats4
Loading required package: gmm
Loading required package: sandwich
Loading required package: RcppProgress
Loading required package: RcppDist
Loading required package: ggplot2
> 
> test_check("IRTM")
-- Attaching core tidyverse packages ------------------------ tidyverse 2.0.0 --
v dplyr     1.2.1     v readr     2.2.0
v forcats   1.0.1     v stringr   1.6.0
v lubridate 1.9.5     v tibble    3.3.1
v purrr     1.2.2     v tidyr     1.3.2
-- Conflicts ------------------------------------------ tidyverse_conflicts() --
x readr::edition_get()   masks testthat::edition_get()
x tidyr::expand()        masks Matrix::expand()
x dplyr::filter()        masks stats::filter()
x dplyr::lag()           masks stats::lag()
x readr::local_edition() masks testthat::local_edition()
x tidyr::pack()          masks Matrix::pack()
x tidyr::unpack()        masks Matrix::unpack()
i Use the conflicted package (<http://conflicted.r-lib.org/>) to force all conflicts to become errors

Attaching package: 'reshape2'

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

    smiths

Sampling...
0%   10   20   30   40   50   60   70   80   90   100%
[----|----|----|----|----|----|----|----|----|----|
**************************************************|
[ FAIL 0 | WARN 0 | SKIP 0 | PASS 4 ]
> 
> 
> proc.time()
   user  system elapsed 
  25.82    0.53   26.34