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test(webui): read the rail flyout's exit animation from the event it fires #23

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Merged
UncleMoc merged 1 commit into from
Nov 10, 2026
Merged

test(webui): read the rail flyout's exit animation from the event it fires #23

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27 changes: 25 additions & 2 deletions packages/webui/test/browser/rail-archive.spec.mjs
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,27 @@ test("the rail context-menu flyout uses the shared surface exit lifecycle", asyn
await configureFixture(page, () => undefined);
await openApp(page);
await page.emulateMedia({ reducedMotion: "no-preference" });
// The exit animation is read from the event it fires, the way the other
// surfaces read theirs. The shared exit runs for 120ms and the flyout is
// unmounted when it ends, so a style read that lands after that sees an
// element with nothing left on it and says nothing about whether the
// shared exit ran at all.
await page.evaluate(() => {
window.__railSubmenuExitAnimation = "";
document.addEventListener(
"animationstart",
(event) => {
if (
event.target instanceof HTMLElement &&
event.target.classList.contains("webui-context-menu-submenu") &&
event.animationName === "webui-motion-surface-exit"
) {
window.__railSubmenuExitAnimation = event.animationName;
}
},
{ capture: true },
);
});
await sessionRow(page, "B").first().click({ button: "right", position: { x: 40, y: 16 } });

const submenu = page.locator(".webui-context-menu-submenu");
Expand All @@ -49,8 +70,10 @@ test("the rail context-menu flyout uses the shared surface exit lifecycle", asyn

await menuItem(page, "归档").hover();
await expect(submenu).toHaveAttribute("data-webui-motion-state", "exit");
expect(await submenu.evaluate((node) => getComputedStyle(node).animationName)).toBe("webui-motion-surface-exit");
await expect(submenu).toHaveCount(0, { timeout: 500 });
await expect
.poll(() => page.evaluate(() => window.__railSubmenuExitAnimation))
.toBe("webui-motion-surface-exit");
await expect(submenu).toHaveCount(0);
});

/** Opens settings the way a user does: the user menu, then 设置. */
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