R Under development (unstable) (2023-11-30 r85651 ucrt) -- "Unsuffered Consequences"
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> library(testthat)
> library(ipaddress)
> 
> test_check("ipaddress")
[ FAIL 0 | WARN 0 | SKIP 44 | PASS 596 ]

══ Skipped tests (44) ══════════════════════════════════════════════════════════
• On CRAN (42): 'test-address_ranges.R:133:3', 'test-common_network.R:48:3',
  'test-country_networks.R:20:3', 'test-country_networks.R:29:3',
  'test-ip_interface.R:60:3', 'test-ip_network_v4.R:57:3',
  'test-ip_network_v4.R:65:3', 'test-ip_network_v6.R:40:3',
  'test-ip_network_v6.R:48:3', 'test-ip_to_binary.R:4:3',
  'test-ip_to_bytes.R:9:3', 'test-ip_to_bytes.R:18:3', 'test-ip_to_hex.R:4:3',
  'test-ip_to_hostname.R:2:3', 'test-ip_to_integer.R:6:3',
  'test-ip_version.R:16:3', 'test-ipv6_transition.R:18:3',
  'test-ipv6_transition.R:45:3', 'test-ipv6_transition.R:78:3',
  'test-network_mask.R:79:3', 'test-network_size.R:6:3',
  'test-network_size.R:16:3', 'test-network_size.R:25:3',
  'test-operators.R:152:3', 'test-pillar.R:10:3', 'test-pillar.R:18:3',
  'test-reserved.R:29:3', 'test-reserved.R:47:3', 'test-reserved.R:62:3',
  'test-reserved.R:77:3', 'test-reserved.R:99:3', 'test-reserved.R:114:3',
  'test-reserved.R:129:3', 'test-reserved.R:145:3',
  'test-reverse_pointer.R:8:3', 'test-sample.R:5:3', 'test-sequence.R:2:3',
  'test-traverse_hierarchy.R:8:3', 'test-traverse_hierarchy.R:41:3',
  'test-traverse_hierarchy.R:65:3', 'test-traverse_hierarchy.R:76:3',
  'test-within_network.R:2:3'
• On Windows (2): 'test-ip_address_v4.R:35:3', 'test-ip_address_v6.R:22:3'

[ FAIL 0 | WARN 0 | SKIP 44 | PASS 596 ]
> 
> proc.time()
   user  system elapsed 
   9.25    0.45   10.35