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test(renderer): stub window.scrollTo so the DOM suite runs stderr-clean #280

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Merged
Pixnop merged 1 commit into from
Aug 31, 2026
Merged

test(renderer): stub window.scrollTo so the DOM suite runs stderr-clean #280

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9 changes: 9 additions & 0 deletions tests/renderer-dom/setup.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -35,6 +35,15 @@ if (!Element.prototype.scrollTo) {
Element.prototype.scrollTo = (): void => {}
}

// jsdom does define window.scrollTo, but only as a stub that logs "Not
// implemented: Window's scrollTo() method" to stderr on every call, so this
// one has to be overwritten rather than guarded on. motion/react reaches it
// while resolving a height: "auto" keyframe (DropdownSection's open/close
// animation, on the info and help page among others): it parks the page
// scroll, measures, then puts the scroll back. Nothing under test depends on
// the page having scrolled, and the noise buries real warnings.
window.scrollTo = (): void => {}

// jsdom does not implement IntersectionObserver. motion/react's useInView
// (every GridItem card) reads it on mount; missing it throws during the
// commit phase and takes the whole subtree down with it, with no error
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