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"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(function*() {
const PROMPTCOUNT = 5;
let contentScript = function() {
var i = 5; // contentScript has no access to PROMPTCOUNT.
window.addEventListener("message", function() {
i--;
if (i) {
window.postMessage("ping", "*");
}
alert("Alert countdown #" + i);
});
window.postMessage("ping", "*");
};
let url = "data:text/html,<script>(" + encodeURIComponent(contentScript.toSource()) + ")();</script>"
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", false);
});
let tab = yield BrowserTestUtils.openNewForegroundTab(gBrowser, url, true);
info("Tab loaded");
yield promptsOpenedPromise;
let promptsCount = PROMPTCOUNT;
while (promptsCount--) {
let prompts = tab.linkedBrowser.parentNode.querySelectorAll("tabmodalprompt");
is(prompts.length, promptsCount + 1, "There should be " + (promptsCount + 1) + " prompt(s).");
// The oldest should be the first.
let i = 0;
for (let prompt of prompts) {
is(prompt.Dialog.args.text, "Alert countdown #" + i, "The #" + i + " alert should be labelled as such.");
if (i !== promptsCount) {
is(prompt.hidden, true, "This prompt should be hidden.");
i++;
continue;
}
is(prompt.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.
yield new Promise(function(resolve) {
Services.tm.mainThread.dispatch(resolve, Ci.nsIThread.DISPATCH_NORMAL);
});
}
}
let prompts = tab.linkedBrowser.parentNode.querySelectorAll("tabmodalprompt");
is(prompts.length, 0, "Prompts should all be dismissed.");
yield BrowserTestUtils.removeTab(tab);
});
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