investigate flaky test-repl-history-navigation

[Trott]

https://ci.nodejs.org/job/node-test-commit-linux-containered/nodes=ubi81_sharedlibs_openssl111fips_x64/23622/console

00:11:05 not ok 1837 parallel/test-repl-history-navigation
00:11:05   ---
00:11:05   duration_ms: 3.266
00:11:05   severity: fail
00:11:05   exitcode: 1
00:11:05   stack: |-
00:11:05     node:assert:107
00:11:05       throw new AssertionError(obj);
00:11:05       ^
00:11:05     
00:11:05     AssertionError [ERR_ASSERTION]: Expected values to be strictly deep-equal:
00:11:05     + actual - expected ... Lines skipped
00:11:05     
00:11:05       [
00:11:05         '> ',
00:11:05     ...
00:11:05         ' ',
00:11:05         ']',
00:11:05     -   '\n// [ [length]: 0 ]',
00:11:05         '[ [length]: 0 ]\n',
00:11:05         '> '
00:11:05       ]
00:11:05         at REPLServer.<anonymous> (/home/iojs/build/workspace/node-test-commit-linux-containered/test/parallel/test-repl-history-navigation.js:584:16)
00:11:05         at Object.onceWrapper (node:events:482:28)
00:11:05         at REPLServer.emit (node:events:388:22)
00:11:05         at REPLServer.EventEmitter.emit (node:domain:470:12)
00:11:05         at REPLServer.Interface.close (node:readline:429:8)
00:11:05         at REPLServer.<anonymous> (node:repl:945:33)
00:11:05         at Object.onceWrapper (node:events:482:28)
00:11:05         at REPLServer.emit (node:events:376:20)
00:11:05         at REPLServer.EventEmitter.emit (node:domain:470:12)
00:11:05         at onwritten (node:internal/repl/history:143:14) {
00:11:05       generatedMessage: true,
00:11:05       code: 'ERR_ASSERTION',
00:11:05       actual: [
00:11:05         '> ',
00:11:05         '[',
00:11:05         ' ',
00:11:05         ']',
00:11:05         '\n// []',
00:11:05         '\n// []',
00:11:05         '\n// []',
00:11:05         '> util.inspect.replDefaults.showHidden',
00:11:05         '\n// false',
00:11:05         ' ',
00:11:05         '=',
00:11:05         ' ',
00:11:05         't',
00:11:05         'r',
00:11:05         'u',
00:11:05         'e',
00:11:05         'true\n',
00:11:05         '> ',
00:11:05         '[',
00:11:05         ' ',
00:11:05         ']',
00:11:05         '[ [length]: 0 ]\n',
00:11:05         '> '
00:11:05       ],
00:11:05       expected: [
00:11:05         '> ',
00:11:05         '[',
00:11:05         ' ',
00:11:05         ']',
00:11:05         '\n// []',
00:11:05         '\n// []',
00:11:05         '\n// []',
00:11:05         '> util.inspect.replDefaults.showHidden',
00:11:05         '\n// false',
00:11:05         ' ',
00:11:05         '=',
00:11:05         ' ',
00:11:05         't',
00:11:05         'r',
00:11:05         'u',
00:11:05         'e',
00:11:05         'true\n',
00:11:05         '> ',
00:11:05         '[',
00:11:05         ' ',
00:11:05         ']',
00:11:05         '\n// [ [length]: 0 ]',
00:11:05         '[ [length]: 0 ]\n',
00:11:05         '> '
00:11:05       ],
00:11:05       operator: 'deepStrictEqual'
00:11:05     }
00:11:05   ...

[Trott]

I am able to reproduce this locally with tools/test.py -j96 --repeat 96 test/parallel/test-repl-history-navigation.js.

[Trott]

/ping @BridgeAR

[BridgeAR]

The REPL limits it's time to evaluate previews to 333 ms. If the CPU is at it's capacity it can take longer and no preview would be generated in that case. That is likely the case here. Do we have a way to skip a test if the CPU is almost at it's limit?