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/* Any copyright is dedicated to the Public Domain.
"use strict";
// This test verifies that the article is properly using the cached data
// when switching into reader mode. The article produces a random number
// contained within it, so if the article gets reloaded instead of using
// the cached version, it would have a different value in it.
const URL =
add_task(async function () {
let tab = await BrowserTestUtils.openNewForegroundTab(gBrowser, URL);
let randomNumber = await SpecialPowers.spawn(tab.linkedBrowser, [], () => {
return content.document.getElementById("rnd").textContent;
});
let promiseTabLoad = promiseTabLoadEvent(tab);
let readerButton = document.getElementById("reader-mode-button");
readerButton.click();
await promiseTabLoad;
await TestUtils.waitForCondition(() => !readerButton.hidden);
let newRandomNumber = await SpecialPowers.spawn(tab.linkedBrowser, [], () => {
return content.document.getElementById("rnd").textContent;
});
is(randomNumber, newRandomNumber, "used the same value");
BrowserTestUtils.removeTab(tab);
});