Running 'testthat.R'
Running the tests in 'tests/testthat.R' failed.
Complete output:
  > library(testthat)
  > library(mkin)
  Loading required package: parallel
  > 
  > test_check("mkin")
  ══ Skipped tests ═══════════════════════════════════════════════════════════════
  • On CRAN (15)
  
  ══ Failed tests ════════════════════════════════════════════════════════════════
  ── Error (test_nafta.R:24:3): Test data from Appendix B are correctly evaluated ──
  Error: there is no package called 'vdiffr'
  Backtrace:
      █
   1. └─base::loadNamespace(x) test_nafta.R:24:2
   2.   └─base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
   3.     └─base:::withOneRestart(expr, restarts[[1L]])
   4.       └─base:::doWithOneRestart(return(expr), restart)
  ── Error (test_nafta.R:49:3): Test data from Appendix D are correctly evaluated ──
  Error: there is no package called 'vdiffr'
  Backtrace:
      █
   1. └─base::loadNamespace(x) test_nafta.R:49:2
   2.   └─base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
   3.     └─base:::withOneRestart(expr, restarts[[1L]])
   4.       └─base:::doWithOneRestart(return(expr), restart)
  
  [ FAIL 2 | WARN 0 | SKIP 15 | PASS 115 ]
  Deleting unused snapshots:
  * _snaps/nafta/nafta-sop-appendix-b.svg
  * _snaps/nafta/plot-nafta-analysis.svg
  * _snaps/plot/mixed-model-fit-for-mmkin-object.svg
  * _snaps/plot/mixed-model-fit-for-nlme-object.svg
  * _snaps/plot/mkinerrplot-for-focus-c-sfo.svg
  * _snaps/plot/mkinfit-plot-for-focus-c-with-defaults.svg
  * _snaps/plot/mkinfit-plot-for-focus-c-with-residuals-like-in-gmkin.svg
  * _snaps/plot/mkinfit-plot-for-focus-c-with-sep-true.svg
  * _snaps/plot/mkinparplot-for-focus-c-sfo.svg
  * _snaps/plot/mmkin-plot-for-focus-c.svg
  * _snaps/plot/mmkin-plot-for-sfo-focus-c-and-d.svg
  * _snaps/plot/plot-err-for-focus-d.svg
  * _snaps/plot/plot-errmod-with-focus-c-tc.svg
  * _snaps/plot/plot-errmod-with-focus-d-obs-eigen.svg
  * _snaps/plot/plot-res-for-focus-c.svg
  * _snaps/plot/plot-res-for-focus-d.svg
  Error: Test failures
  Execution halted