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ArtPlayer/refactor/baselines/chapter-native-timing-validation.json
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{
"task": "PKG-CHAPTER-05",
"status": "doing",
"capturedAt": "2026-09-14T17:48:16.211Z",
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"error": "Error: \u001b[2mexpect(\u001b[22m\u001b[31mreceived\u001b[39m\u001b[2m).\u001b[22mtoEqual\u001b[2m(\u001b[22m\u001b[32mexpected\u001b[39m\u001b[2m) // deep equality\u001b[22m\n\n\u001b[32m- Expected - 3\u001b[39m\n\u001b[31m+ Received + 1\u001b[39m\n\n\u001b[32m- Array [\u001b[39m\n\u001b[32m- \"/test/pattern.mp4?quality=A\",\u001b[39m\n\u001b[32m- ]\u001b[39m\n\u001b[31m+ Array []\u001b[39m\n\nCall Log:\n- Timeout 7000ms exceeded while waiting on the predicate",
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},
{
"label": "engines",
"scope": "pure native media with direct correction enabled; Chromium and Firefox; one sample each",
"directory": "refactor/.cache/chapter05-native-engines-report",
"report": {
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},
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],
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]
}
],
"conclusions": [
"Default tracing and trace-off fixed series each retain one failure; tracing is not a necessary trigger in these samples.",
"No monitored native media property access exceeded 20 ms, while page heartbeat gaps around 5 seconds appeared in passed and failed samples.",
"Unassisted native metadata restoration reset the position near zero in all six WebKit controls.",
"All six directly corrected native controls restored their position; two show a roughly 5-second heartbeat gap without ArtPlayer loaded.",
"Deferred correction also leaves a 5.104-second heartbeat gap; no setTimeout workaround was adopted.",
"Same native direct-control entry passes Chromium/Firefox once each."
],
"limitations": [
"Property access instrumentation covers currentTime,duration,readyState,seeking,playbackRate,paused only; methods/layout/renderer/OS scheduling are not individually profiled.",
"Five-second gaps outside ArtPlayer do not prove the exact cause of every earlier ten-second timeout.",
"Each prospective series has a fixed repeat count and no failure retry; these are diagnostic samples, not statistical release certification.",
"Final helper adds a selector for the native page; correction and deferred control modes were added after their preceding preserved runs. No claim that final diagnostic source was identical across all controls.",
"Initial native failures retain their position assertion; not converted to expected passes or included in routine CI.",
"No production workaround, larger timeout, changed browser target, physical-device or remote CI acceptance."
],
"defaultRegression": {
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"sha256": "b1d9ae3b47e9ff279f5315c74fe616a5fd87411ce44b0d4de1ee98f2febc8215",
"stats": {
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"duration": 4778.524,
"expected": 1,
"skipped": 0,
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},
"result": {
"scope": "installed",
"exitCode": 0,
"signal": null,
"args": [
"test",
"--config=playwright.installed.config.js",
"chapter-combinations.spec.js",
"--project=chromium",
"--workers=1",
"--grep=candidate core \\+ candidate chapter: quality switch"
]
},
"diagnosticAttachmentAbsent": true,
"scope": "One Chromium installed candidate/core Chapter quality switch, with diagnostic flag disabled"
}
}
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