"use strict"; /* * This test triggers multiple alerts on one single tab, because it"s possible * for web content to do so. The behavior is described in bug 1266353. * * We assert the presentation of the multiple alerts, ensuring we show only * the oldest one. */ add_task(async function() { await SpecialPowers.pushPrefEnv({ set: [["prompts.contentPromptSubDialog", false]], }); const PROMPTCOUNT = 9; let contentScript = function(MAX_PROMPT) { var i = MAX_PROMPT; let fns = ["alert", "prompt", "confirm"]; function openDialog() { i--; if (i) { SpecialPowers.Services.tm.dispatchToMainThread(openDialog); } window[fns[i % 3]](fns[i % 3] + " countdown #" + i); } SpecialPowers.Services.tm.dispatchToMainThread(openDialog); }; let url = "data:text/html,"; let promptsOpenedPromise = new Promise(function(resolve) { let unopenedPromptCount = PROMPTCOUNT; Services.obs.addObserver(function observer() { unopenedPromptCount--; if (!unopenedPromptCount) { Services.obs.removeObserver(observer, "tabmodal-dialog-loaded"); info("Prompts opened."); resolve(); } }, "tabmodal-dialog-loaded"); }); let tab = await BrowserTestUtils.openNewForegroundTab(gBrowser, url, true); info("Tab loaded"); await promptsOpenedPromise; let promptElementsCount = PROMPTCOUNT; while (promptElementsCount--) { let promptElements = tab.linkedBrowser.parentNode.querySelectorAll( "tabmodalprompt" ); is( promptElements.length, promptElementsCount + 1, "There should be " + (promptElementsCount + 1) + " prompt(s)." ); // The oldest should be the first. let i = 0; for (let promptElement of promptElements) { let prompt = tab.linkedBrowser.tabModalPromptBox.getPrompt(promptElement); let expectedType = ["alert", "prompt", "confirm"][i % 3]; is( prompt.Dialog.args.text, expectedType + " countdown #" + i, "The #" + i + " alert should be labelled as such." ); if (i !== promptElementsCount) { is(prompt.element.hidden, true, "This prompt should be hidden."); i++; continue; } is(prompt.element.hidden, false, "The last prompt should not be hidden."); prompt.onButtonClick(0); // The click is handled async; wait for an event loop turn for that to // happen. await new Promise(function(resolve) { Services.tm.dispatchToMainThread(resolve); }); } } let promptElements = tab.linkedBrowser.parentNode.querySelectorAll( "tabmodalprompt" ); is(promptElements.length, 0, "Prompts should all be dismissed."); BrowserTestUtils.removeTab(tab); });