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test: prove the frame lifecycle fixes against the real extension

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The evidence for the frame-observation fixes was a reimplementation of the
logic measured in a browser console, not the shipped code. Two extension
specs now cover the observable behaviour end to end: a player frame that
swaps its document, and the same one level deeper.

The nested case fails against the pre-fix content.js and passes now. The
top-level case already passed before the fix, so that fix removed dead
observer registrations without changing what a user could see; recorded
here so the distinction is not lost.

Also adds bench-finder.mjs, which measures the extracted shipped finder
instead of a transcription of it.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
KoalaDev
2026-08-14 07:53:45 +02:00
parent 66971150c7
commit ef1fdc89c3
8 changed files with 177 additions and 0 deletions
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tests/e2e/fixtures/pages/frames/outer-frame.html
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<!doctype html>
<meta charset="utf-8">
<title>Outer</title>
<style>body { margin: 0 }</style>
<!-- Wrapper frame with no video of its own: the player sits one level deeper,
so anything that only walks the top document's frames misses it. -->
<iframe class="inner_player" width="860" height="490" src="player-frame.html"></iframe>
tests/e2e/fixtures/pages/frames/player-frame-2.html
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<!doctype html>
<meta charset="utf-8">
<title>V2</title>
<style>body { margin: 0 }</style>
<!-- The frame's second server/quality choice: a different element, so
re-attaching to it is distinguishable from staying on the old one. -->
<video id="framed-player-2" data-expected width="854" height="480" controls src="../../media/player-1080p-30s.mp4"></video>
tests/e2e/fixtures/pages/nested-frame.html
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<!doctype html>
<meta charset="utf-8">
<title>Nested player frame</title>
<h1>Player two frame levels down</h1>
<iframe class="outer_frame" width="870" height="500" src="frames/outer-frame.html"></iframe>
<script src="ready.js"></script>
tests/e2e/fixtures/pages/reloading-frame.html
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<!doctype html>
<meta charset="utf-8">
<title>Reloading player frame</title>
<h1>Player frame that swaps its document, like a server or quality switch</h1>
<!-- Nothing in the top document changes when the frame navigates, so the top
document's MutationObserver never fires. Only a load hook on the frame can
notice, which is exactly what this fixture pins down. -->
<iframe class="player_frame" width="860" height="490" src="frames/player-frame.html"></iframe>
<script src="ready.js"></script>