Running ‘testthat.R’ [63s/100s]
Running the tests in ‘tests/testthat.R’ failed.
Complete output:
  > library(testthat)
  > library(slendr)
  The 'slim' binary could not be found in your $PATH. Most of
  the functionality of slendr will work without any issues but
  you will not be able to simulate data with the `slim()` function.
  
  If you want to run SLiM simulations, make sure to modify the $PATH
  variable so that it points to the directory containing the slim
  command-line program. One easy way to do this is to add this:
  
  PATH="path/to/directory/with/slim/binary"
  
  to your ~/.Renviron file.
  
  Alternatively, use the `slim_path` argument of the `slim()` function.
  --------------------
  A slendr Python (3.12) environment with the necessary versions of
  msprime (1.3.1), tskit (0.5.6), pyslim (1.0.4), and tspop (0.0.2)
  has not been found.
  
  You can setup a pre-configured environment with all of slendr's Python
  dependencies automatically by running the function `setup_env()`.
  > 
  > test_check("slendr")
  [ FAIL 1 | WARN 1 | SKIP 32 | PASS 175 ]
  
  ══ Skipped tests (32) ══════════════════════════════════════════════════════════
  • !is_slendr_env_present() is TRUE (32): 'test-compilation.R:65:1',
    'test-engines.R:1:1', 'test-geneflow.R:50:3', 'test-ibd-squashing.R:1:1',
    'test-ibd.R:1:1', 'test-interaction-changes.R:49:3', 'test-manual-ts.R:1:1',
    'test-msprime-geneflow.R:5:1', 'test-msprime-metadata.R:1:1',
    'test-msprime.R:23:1', 'test-nonserialized.R:1:1', 'test-population.R:43:3',
    'test-population.R:60:3', 'test-population.R:142:3',
    'test-pure-msprime-vs-slendr.R:4:1', 'test-pure-slim-vs-slendr.R:4:1',
    'test-resizes-locked.R:1:1', 'test-resizes.R:1:1', 'test-runners.R:1:1',
    'test-sampling.R:70:3', 'test-sampling.R:127:3', 'test-sampling.R:228:3',
    'test-sampling.R:254:3', 'test-sampling.R:287:3',
    'test-simulation-runs.R:1:1', 'test-time-direction.R:1:1',
    'test-trees.R:1:1', 'test-ts-ancestors-descendants.R:1:1',
    'test-ts-pure-nonspatial.R:1:1', 'test-ts-pure-spatial.R:1:1',
    'test-ts.R:1:1', 'test-tspop.R:1:1'
  
  ══ Failed tests ════════════════════════════════════════════════════════════════
  ── Error ('test-naturalearth.R:4:3'): all three variants of the Natural Earth data can be downloaded ──
  Error in `utils::download.file(url = sprintf("https://naturalearth.s3.amazonaws.com/%sm_physical/%s", 
      size, file), destfile = path, quiet = TRUE)`: cannot open URL 'https://naturalearth.s3.amazonaws.com/50m_physical/ne_50m_land.zip'
  Backtrace:
      ▆
   1. ├─utils::capture.output(...) at test-naturalearth.R:4:3
   2. │ └─base::withVisible(...elt(i))
   3. └─slendr::world(...)
   4.   └─utils::download.file(...)
  
  [ FAIL 1 | WARN 1 | SKIP 32 | PASS 175 ]
  Error: Test failures
  Execution halted