tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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browser_ImageDocument_svg_zoom.js (1139B)

      1 /* Any copyright is dedicated to the Public Domain.
      2   http://creativecommons.org/publicdomain/zero/1.0/ */
      3 
      4 "use strict";
      5 
      6 const URL = `data:image/svg+xml,<svg viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg"><rect width="100" height="100" fill="green"/></svg>`;
      7 
      8 function test_once() {
      9  return BrowserTestUtils.withNewTab(URL, async browser => {
     10    return await SpecialPowers.spawn(browser, [], async function () {
     11      const rect = content.document.documentElement.getBoundingClientRect();
     12      info(
     13        `${rect.width}x${rect.height}, ${content.innerWidth}x${content.innerHeight}`
     14      );
     15      is(
     16        Math.round(rect.height),
     17        content.innerHeight,
     18        "Should fill the viewport and not overflow"
     19      );
     20    });
     21  });
     22 }
     23 
     24 add_task(async function test_with_no_text_zoom() {
     25  await test_once();
     26 });
     27 
     28 add_task(async function test_with_text_zoom() {
     29  let dpi = window.devicePixelRatio;
     30 
     31  await SpecialPowers.pushPrefEnv({ set: [["ui.textScaleFactor", 200]] });
     32  Assert.greater(
     33    window.devicePixelRatio,
     34    dpi,
     35    "DPI should change as a result of the pref flip"
     36  );
     37 
     38  return test_once();
     39 });