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A stalled server no longer reads as "your clock is ahead" #251

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jared merged 3 commits from clock-skew-lag into lotus 2026-09-28 22:40:14 -04:00
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+15 -6
1 changed files with 15 additions and 6 deletions
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e2e/local-homeserver.spec.ts
+15 -6
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@@ -257,12 +257,21 @@ test.describe('local homeserver regression', () => {
await page.clock.install({ time: Date.now() + 14 * 60 * 1000 });
await loginUI(page, alice);
await openRoom(page, room);
for (let i = 0; i < 4; i += 1) {
// eslint-disable-next-line no-await-in-loop
await sendText(bob, room, `tick ${i}`);
// eslint-disable-next-line no-await-in-loop
await page.waitForTimeout(500);
}
const ticks = async (from: number, n: number) => {
for (let i = from; i < from + n; i += 1) {
// eslint-disable-next-line no-await-in-loop
await sendText(bob, room, `tick ${i}`);
// eslint-disable-next-line no-await-in-loop
await page.waitForTimeout(500);
}
};
await ticks(0, 4);
// "Ahead" could be a late delivery (a stalled server), so it is only
// reported once it has held for a minute of fresh samples.
await page.waitForTimeout(2000);
await expect(page.getByText(/clock is .*ahead of the server/)).toHaveCount(0);
await page.clock.fastForward('01:05');
await ticks(4, 2);
await expect(page.getByText(/clock is .*14 minutes ahead of the server/)).toBeVisible();
await page.getByRole('button', { name: 'Dismiss for 24 h' }).click();
await expect(page.getByText(/clock is .*ahead of the server/)).toHaveCount(0);