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test(desktop): deflake mid-scroll older-history spinner smoke test (#1632)

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Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Pinky <44b8e82baa6e0e254e0208d68f335c283c94e7b78dd1fa10d5a49d3f13dd0435@sprout-oss.stage.blox.sqprod.co>
This commit is contained in:
Wes
2026-07-08 07:27:20 -07:00
committed by GitHub
co-authored by Pinky
parent 290be2a039
commit 7ff58d9af9
1 changed files with 16 additions and 6 deletions
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desktop/tests/e2e/scroll-history.spec.ts
+16 -6
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@@ -1577,16 +1577,26 @@ test("older-history spinner stays visible in viewport while fetching mid-scroll"
const timeline = page.getByTestId("message-timeline");
await expect(timeline.locator("[data-message-id]").first()).toBeVisible();
await timeline.hover();
await page.mouse.wheel(0, -1_500);
await page.waitForTimeout(100);
await page.mouse.wheel(0, 1_000);
await page.waitForTimeout(100);
await page.mouse.wheel(0, -1_000);
// Trigger the older fetch near the top, then move the reader mid-scroll
// while the fetch is still in flight. Set scrollTop directly instead of
// mouse.wheel: wheel deltas vary across CI environments and can land the
// timeline at scrollTop 0, which is the one position this test must avoid.
await timeline.evaluate((element) => {
const timelineElement = element as HTMLDivElement;
timelineElement.scrollTop = 150;
timelineElement.dispatchEvent(new Event("scroll", { bubbles: true }));
});
const indicator = page.getByTestId("message-timeline-fetching-older");
await expect(indicator).toBeVisible({ timeout: 2_000 });
await timeline.evaluate((element) => {
const timelineElement = element as HTMLDivElement;
timelineElement.scrollTop = timelineElement.clientHeight;
timelineElement.dispatchEvent(new Event("scroll", { bubbles: true }));
});
await expect(indicator).toBeVisible();
const { scrollTop } = await getTimelineMetrics(page);
expect(scrollTop).toBeGreaterThan(8);