/* Any copyright is dedicated to the Public Domain. http://creativecommons.org/publicdomain/zero/1.0/ */ "use strict"; add_task(async function test_check_alert_from_blank() { await BrowserTestUtils.withNewTab( "https://example.com/blank", async browser => { await SpecialPowers.spawn(browser, [], () => { let button = content.document.createElement("button"); button.addEventListener("click", () => { let newWin = content.open( "about:blank", "", "popup,width=600,height=600" ); newWin.alert("Alert from the popup."); }); content.document.body.append(button); }); let newWinPromise = BrowserTestUtils.waitForNewWindow(); await BrowserTestUtils.synthesizeMouseAtCenter("button", {}, browser); let otherWin = await newWinPromise; Assert.equal( otherWin.gBrowser.currentURI?.spec, "about:blank", "Should have opened about:blank" ); Assert.equal( otherWin.menubar.visible, false, "Should be a popup window." ); let contentDialogManager = gBrowser .getTabDialogBox(gBrowser.selectedBrowser) .getContentDialogManager(); todo_is(contentDialogManager._dialogs.length, 1, "Should have 1 dialog."); await BrowserTestUtils.closeWindow(otherWin); } ); });