diff options
Diffstat (limited to 'devtools/client/responsive/test/browser/browser_viewport_state_after_close.js')
-rw-r--r-- | devtools/client/responsive/test/browser/browser_viewport_state_after_close.js | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/devtools/client/responsive/test/browser/browser_viewport_state_after_close.js b/devtools/client/responsive/test/browser/browser_viewport_state_after_close.js new file mode 100644 index 0000000000..3bac3b3e01 --- /dev/null +++ b/devtools/client/responsive/test/browser/browser_viewport_state_after_close.js @@ -0,0 +1,51 @@ +/* Any copyright is dedicated to the Public Domain. +http://creativecommons.org/publicdomain/zero/1.0/ */ + +"use strict"; + +// Test that after closing RDM the page goes back to its original state + +const TEST_URL = + "data:text/html;charset=utf-8,<style>h1 {width: 200px;} @media (hover:none) { h1 {width: 400px;background: tomato;}</style><h1>Hello</h1>"; + +add_task(async function () { + const tab = await addTab(TEST_URL); + + reloadOnTouchChange(false); + reloadOnUAChange(false); + await pushPref("devtools.responsive.touchSimulation.enabled", true); + + is(await getH1Width(), 200, "<h1> has expected initial width"); + + for (let i = 0; i < 10; i++) { + info("Open responsive design mode"); + await openRDM(tab); + + await SpecialPowers.spawn(gBrowser.selectedBrowser, [], async function () { + const mql = content.matchMedia("(hover:none)"); + if (mql.matches) { + return; + } + await new Promise(res => + mql.addEventListener("change", res, { once: true }) + ); + }); + + is( + await getH1Width(), + 400, + "<h1> has expected width when RDM and touch simulation are enabled" + ); + + info("Close responsive design mode"); + await closeRDM(tab); + + is(await getH1Width(), 200, "<h1> has expected width after closing RDM"); + } +}); + +function getH1Width() { + return SpecialPowers.spawn(gBrowser.selectedBrowser, [], function () { + return content.document.querySelector("h1").getBoundingClientRect().width; + }); +} |