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/* Any copyright is dedicated to the Public Domain.
"use strict";
// This test can be slow on linux debug
requestLongerTimeout(2);
// As we are closing devtools while it may still be loading,
// we are getting various exception about pending request still in flight while closing
const { PromiseTestUtils } = ChromeUtils.importESModule(
);
PromiseTestUtils.allowMatchingRejectionsGlobally(/Connection closed/);
// in middle of DevTools initialization.
// So try opening DevTools a couple of times while destroying content processes in the background.
const URL1 =
"data:text/html;charset=utf8,test many toggles with other content process destructions";
add_task(
async function manyTogglesWithContentProcessDestructionsInBackground() {
const tab = await addTab(URL1);
const ProcessTools = Cc["@mozilla.org/processtools-service;1"].getService(
Ci.nsIProcessToolsService
);
const openedTabs = [];
const interval = setInterval(() => {
// Close the process specific to about:home, which is using a privilegedabout process type
const pid = ChromeUtils.getAllDOMProcesses().filter(
r => r.remoteType == "privilegedabout"
)[0]?.osPid;
if (!pid) {
return;
}
try {
ProcessTools.kill(pid);
} catch (ex) {
info(`ProcessTools.kill(${pid}) returned: ${ex.result}`);
// NS_ERROR_NOT_AVAILABLE is thrown is the process disappeared (ESRCH)
// So we should be fine ignoring this
if (ex.result !== Cr.NS_ERROR_NOT_AVAILABLE) {
throw ex;
}
}
// The privilegedabout process wouldn't be automatically re-created, so open a new tab to force creating a new process.
openedTabs.push(BrowserTestUtils.addTab(gBrowser, "about:home"));
}, 10);
info(
"Open/close DevTools many times in a row while some processes get destroyed"
);
for (let i = 0; i < 5; i++) {
const toolbox = await gDevTools.showToolboxForTab(tab, {
toolId: "webconsole",
});
await toolbox.destroy();
}
clearInterval(interval);
info("Close all tabs that were used to spawn a new content process");
for (const tab of openedTabs) {
await removeTab(tab);
}
await removeTab(tab);
}
);
// Bug 1903980: DevTools throw in background and becomes blank when closing them while iframe are being destroyed.
const URL2 = `data:text/html,Test toggling DevTools with many destroying iframes`;
add_task(async function manyTogglesWithDestroyingIframes() {
const tab = await addTab(URL2);
// Run the infinite loop creating iframe *after* having called addTab
// as it may confuse the test helper and make it consider the page as still loading.
await SpecialPowers.spawn(gBrowser.selectedBrowser, [], function () {
let iframe;
content.interval = content.setInterval(function () {
if (iframe) {
iframe.remove();
}
iframe = content.document.createElement("iframe");
iframe.src = "data:text/html,foo";
content.document.body.appendChild(iframe);
// Do not use a timeout lower than 100 as it would freeze all executions with MOZ_CHAOS mode
// If the interval is lower than 50, no RDP message would be able to be emitted
// and between 50 and 100, only frameUpdate would be notified without allowing to load the toolbox
}, 100);
});
info(
"Open/close DevTools many times in a row while some processes get destroyed"
);
for (let i = 0; i < 3; i++) {
info(` # Toggle DevTools attempt #${i}`);
const toolbox = await gDevTools.showToolboxForTab(tab, {
toolId: "webconsole",
});
await toolbox.destroy();
}
await SpecialPowers.spawn(gBrowser.selectedBrowser, [], function () {
content.clearInterval(content.interval);
});
await removeTab(tab);
});