R Under development (unstable) (2025-11-30 r89082 ucrt) -- "Unsuffered Consequences"
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> 
> if (requireNamespace("tinytest", quietly = TRUE)) {
+   tinytest::test_package("havel")
+ }

test_graph.R..................    0 tests    
test_graph.R..................    0 tests    
test_graph.R..................    0 tests    
test_graph.R..................    0 tests    47ms
1ms

test_plot.R...................    0 tests    
test_plot.R...................    0 tests    
test_plot.R...................    0 tests    
test_plot.R...................    1 tests OK 
test_plot.R...................    1 tests OK 
test_plot.R...................    2 tests OK 0.2s

test_uniq_pkg_deps.R..........    0 tests    
test_uniq_pkg_deps.R..........    0 tests    
test_uniq_pkg_deps.R..........    2 tests OK 
test_uniq_pkg_deps.R..........    5 tests OK 33ms
All ok, 7 results (0.3s)
> 
> 
> proc.time()
   user  system elapsed 
   0.48    0.18    0.65