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Test Info: Warnings

add_task(async function () {
let loadedPromise = BrowserTestUtils.browserLoaded(
gBrowser.selectedBrowser,
true
);
const htmlContent =
"data:text/html, <iframe src='data:text/html,text text'></iframe>";
BrowserTestUtils.startLoadingURIString(gBrowser, htmlContent);
await loadedPromise;
await SpecialPowers.spawn(gBrowser.selectedBrowser, [], async function () {
let frame = content.frames[0];
let sel = frame.getSelection();
let range = frame.document.createRange();
let tn = frame.document.body.childNodes[0];
range.setStart(tn, 4);
range.setEnd(tn, 5);
sel.addRange(range);
frame.focus();
});
let contentAreaContextMenu = document.getElementById(
"contentAreaContextMenu"
);
let popupShownPromise = BrowserTestUtils.waitForEvent(
contentAreaContextMenu,
"popupshown"
);
await BrowserTestUtils.synthesizeMouse(
"frame",
5,
5,
{ type: "contextmenu", button: 2 },
gBrowser.selectedBrowser
);
await popupShownPromise;
ok(
document.getElementById("frame-sep").hidden,
"'frame-sep' should be hidden if the selection contains only spaces"
);
let popupHiddenPromise = BrowserTestUtils.waitForEvent(
contentAreaContextMenu,
"popuphidden"
);
contentAreaContextMenu.hidePopup();
await popupHiddenPromise;
});