R Under development (unstable) (2025-06-26 r88362 ucrt) -- "Unsuffered Consequences"
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> # load packages
> library(testthat)
> library(oppr)
> 
> # run tests
> test_check("oppr")
list()
attr(,"class")
[1] "Waiver"
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Starting checking the validity of sim_tree...
Found number of tips: n = 5 
Found number of nodes: m = 4 
Done.

Model name:  'project prioritization problem' - run #1    
Objective:   Maximize(R0)
 
SUBMITTED
Model size:       23 constraints,      23 variables,           52 non-zeros.
Sets:                                   0 GUB,                  0 SOS.
 
Using DUAL simplex for phase 1 and PRIMAL simplex for phase 2.
The primal and dual simplex pricing strategy set to 'Devex'.
 
Optimized BLAS was successfully loaded for bfp_LUSOL.

Relaxed solution            1.697466 after         20 iter is B&B base.
 
Feasible solution            1.07805 after         24 iter,         5 nodes (gap 23.0%)
Improved solution            1.09488 after         27 iter,         9 nodes (gap 22.3%)
Improved solution             1.6536 after         29 iter,        10 nodes (gap 1.6%)
 
Optimal solution              1.6536 after         29 iter,        10 nodes (gap 1.6%).

Excellent numeric accuracy ||*|| = 1.11022e-16

 MEMO: lp_solve version 5.5.2.0 for 64 bit OS, with 64 bit LPSREAL variables.
      In the total iteration count 29, 4 (13.8%) were bound flips.
      There were 5 refactorizations, 0 triggered by time and 0 by density.
       ... on average 5.0 major pivots per refactorization.
      The largest [LUSOL v2.2.1.0] fact(B) had 58 NZ entries, 1.1x largest basis.
      The maximum B&B level was 4, 0.1x MIP order, 3 at the optimal solution.
      The constraint matrix inf-norm is 1, with a dynamic range of 10.
      Time to load data was 0.000 seconds, presolve used 0.000 seconds,
       ... 0.000 seconds in simplex solver, in total 0.000 seconds.
[ FAIL 0 | WARN 0 | SKIP 40 | PASS 1470 ]

══ Skipped tests (40) ══════════════════════════════════════════════════════════
• On CRAN (39): 'test_add_locked_in_constraints.R:21:3',
  'test_add_locked_in_constraints.R:89:3',
  'test_add_locked_in_constraints.R:138:3',
  'test_add_locked_out_constraints.R:21:3',
  'test_add_locked_out_constraints.R:89:3',
  'test_add_locked_out_constraints.R:138:3',
  'test_add_max_phylo_div_objective.R:40:3',
  'test_add_max_phylo_div_objective.R:131:3',
  'test_add_max_phylo_div_objective.R:174:3',
  'test_add_max_phylo_div_objective.R:223:3',
  'test_add_max_phylo_div_objective.R:273:3',
  'test_add_max_phylo_div_objective.R:321:3',
  'test_add_max_richness_objective.R:204:3',
  'test_add_max_richness_objective.R:265:3',
  'test_add_max_richness_objective.R:300:3',
  'test_add_max_richness_objective.R:346:3',
  'test_add_max_targets_met_objective.R:208:3',
  'test_add_max_targets_met_objective.R:295:3',
  'test_add_max_targets_met_objective.R:343:3',
  'test_add_min_set_objective.R:94:3', 'test_add_min_set_objective.R:140:3',
  'test_add_min_set_objective.R:190:3', 'test_decisions.R:19:3',
  'test_plot.R:42:3', 'test_plot_phylo_persistence.R:4:3',
  'test_plot_phylo_persistence.R:43:3', 'test_plot_phylo_persistence.R:82:3',
  'test_plot_phylo_persistence.R:121:3', 'test_replacement_costs.R:4:3',
  'test_replacement_costs.R:41:3', 'test_solvers.R:4:3', 'test_solvers.R:22:3',
  'test_solvers.R:50:3', 'test_solvers.R:68:3', 'test_solvers.R:96:3',
  'test_solvers.R:115:3', 'test_solvers.R:144:3', 'test_solvers.R:162:3',
  'test_solvers.R:190:3'
• {gurobi} is not installed (1): 'test_add_max_phylo_div_objective.R:628:3'

[ FAIL 0 | WARN 0 | SKIP 40 | PASS 1470 ]
> 
> proc.time()
   user  system elapsed 
  25.25    1.60   26.90