mirror of
https://github.com/mozilla/gecko-dev.git
synced 2025-11-11 05:39:41 +02:00
21 lines
782 B
JavaScript
21 lines
782 B
JavaScript
// This test ensures that only one command update happens when switching tabs.
|
|
|
|
"use strict";
|
|
|
|
add_task(async function() {
|
|
const uri = "data:text/html,<body><input>";
|
|
let tab1 = await BrowserTestUtils.openNewForegroundTab(gBrowser, uri);
|
|
let tab2 = await BrowserTestUtils.openNewForegroundTab(gBrowser, uri);
|
|
|
|
let updates = 0;
|
|
function countUpdates(event) { updates++; }
|
|
let updater = document.getElementById("editMenuCommandSetAll");
|
|
updater.addEventListener("commandupdate", countUpdates, true);
|
|
await BrowserTestUtils.switchTab(gBrowser, tab1);
|
|
|
|
is(updates, 1, "only one command update per tab switch");
|
|
|
|
updater.removeEventListener("commandupdate", countUpdates, true);
|
|
await BrowserTestUtils.removeTab(tab1);
|
|
await BrowserTestUtils.removeTab(tab2);
|
|
});
|