R version 4.6.0 RC (2026-04-17 r89912 ucrt) -- "Because it was There"
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Platform: x86_64-w64-mingw32/x64

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> library(testthat)
> library(igraph)

Attaching package: 'igraph'

The following object is masked from 'package:testthat':

    compare

The following objects are masked from 'package:stats':

    decompose, spectrum

The following object is masked from 'package:base':

    union

> 
> test_check("igraph")
Starting 2 test processes.
[ FAIL 0 | WARN 0 | SKIP 120 | PASS 6238 ]

══ Skipped tests (120) ═════════════════════════════════════════════════════════
• FIXME: Errors in callback are silently gobbled, check with v1.0 and report
  upstream (1): 'test-topology.R:583:3'
• On CRAN (113): 'test-aaa-auto.R:2:1', 'test-adjacency.R:610:1',
  'test-adjacency.R:639:1', 'test-adjacency.R:788:1',
  'test-attributes.R:366:1', 'test-attributes.R:390:1',
  'test-attributes.R:447:1', 'test-attributes.R:476:1',
  'test-attributes.R:483:1', 'test-centrality.R:32:1',
  'test-centrality.R:88:1', 'test-centrality.R:145:3',
  'test-centrality.R:835:1', 'test-centrality.R:846:1',
  'test-community.R:379:1', 'test-error-formatting.R:1:1',
  'test-conversion.R:47:1', 'test-conversion.R:54:1',
  'test-conversion.R:143:1', 'test-conversion.R:198:1',
  'test-conversion.R:564:1', 'test-conversion.R:678:1',
  'test-conversion.R:707:1', 'test-fit.R:30:1', 'test-foreign.R:28:1',
  'test-foreign.R:37:1', 'test-foreign.R:46:1', 'test-foreign.R:55:1',
  'test-foreign.R:59:1', 'test-flow.R:98:1', 'test-flow.R:141:1',
  'test-flow.R:178:1', 'test-flow.R:191:1', 'test-flow.R:209:1',
  'test-flow.R:222:1', 'test-flow.R:246:1', 'test-flow.R:288:1',
  'test-hrg.R:10:1', 'test-hrg.R:20:1', 'test-hrg.R:27:1',
  'test-incidence.R:1:1', 'test-incidence.R:19:1', 'test-incidence.R:112:1',
  'test-incidence.R:130:1', 'test-incidence.R:214:1', 'test-incidence.R:230:1',
  'test-games.R:66:1', 'test-games.R:86:1', 'test-interface.R:181:1',
  'test-interface.R:202:1', 'test-iterators.R:327:1', 'test-iterators.R:347:1',
  'test-iterators.R:368:1', 'test-iterators.R:444:1', 'test-layout.R:17:1',
  'test-layout.R:158:3', 'test-layout.R:213:1', 'test-layout.R:335:1',
  'test-minimum.spanning.tree.R:35:1', 'test-motifs.R:251:1',
  'test-make.R:43:1', 'test-make.R:68:1', 'test-make.R:77:1',
  'test-make.R:85:1', 'test-make.R:95:1', 'test-make.R:103:1',
  'test-make.R:293:1', 'test-other.R:30:1', 'test-other.R:38:3',
  'test-other.R:51:1', 'test-other.R:160:1', 'test-palette.R:192:1',
  'test-palette.R:225:1', 'test-par.R:1:1', 'test-par.R:11:1',
  'test-paths.R:18:1', 'test-paths.R:42:1', 'test-plot.R:1:1',
  'test-plot.R:26:1', 'test-plot.R:51:1', 'test-plot.R:89:1',
  'test-plot.R:119:1', 'test-plot.R:142:1', 'test-plot.R:150:1',
  'test-plot.R:172:1', 'test-plot.R:189:1', 'test-plot.R:214:1',
  'test-plot.R:237:1', 'test-plot.shapes.R:129:1', 'test-plot.shapes.R:159:1',
  'test-plot.shapes.R:181:1', 'test-plot.shapes.R:229:1', 'test-print.R:74:1',
  'test-print.R:84:1', 'test-print.R:101:1', 'test-print.R:117:1',
  'test-print.R:132:1', 'test-operators.R:216:1', 'test-operators.R:255:1',
  'test-structural-properties.R:20:1', 'test-structural-properties.R:215:1',
  'test-structural-properties.R:235:1', 'test-structural-properties.R:826:1',
  'test-trees.R:218:1', 'test-utils-assert-args.R:1:1',
  'test-utils-assert-args.R:9:1', 'test-versions.R:8:1',
  'test-versions.R:14:1', 'test-versions.R:24:1', 'test-versions.R:39:1',
  'test-versions.R:54:1', 'test-versions.R:69:1', 'test-versions.R:94:1'
• On Windows (2): 'test-foreign.R:4:3', 'test-foreign.R:67:3'
• nested igraph call handling not implemented yet (1):
  'test-structural-properties.R:202:3'
• {graph} is not installed (2): 'test-conversion.R:525:3',
  'test-conversion.R:553:3'
• {pcalg} is not installed (1): 'test-adjacency.R:20:3'

[ FAIL 0 | WARN 0 | SKIP 120 | PASS 6238 ]
> 
> proc.time()
   user  system elapsed 
  28.15    1.23   66.42