browser_caching_innerHTML.js

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/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

"use strict";

/**

 * Test caching of innerHTML on math elements for Windows clients.

*/

addAccessibleTask(

<p id="p">test</p>

<math id="math"><mfrac><mi>x</mi><mi>y</mi></mfrac></math>

`,

  async function (browser, docAcc) {

    const p = findAccessibleChildByID(docAcc, "p");

    let hasHtml;

    try {

      p.cache.getStringProperty("html");

      hasHtml = true;

    } catch (e) {

      hasHtml = false;

    ok(!hasHtml, "p doesn't have cached html");

    const math = findAccessibleChildByID(docAcc, "math");

is(

      math.cache.getStringProperty("html"),

      "<mfrac><mi>x</mi><mi>y</mi></mfrac>",

      "math cached html is correct"

);

    info("Mutating math");

    await invokeContentTask(browser, [], () => {

      content.document.querySelectorAll("mi")[1].textContent = "z";

});

    await untilCacheIs(

      () => math.cache.getStringProperty("html"),

      "<mfrac><mi>x</mi><mi>z</mi></mfrac>",

      "math cached html is correct after mutation"

);

},

    topLevel: true,

    iframe: true,

    remoteIframe: true,

);