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test_child_process_shutdown_message.html
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test_child_process_shutdown_message.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Test that processes that are shutdown send a 'process-shutdown'
message to their process message manager.</title>
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body onload="runTests();">
<p id="display">
</p>
<div id="content" style="display: none">
</div>
<pre id="test">
<script class="testbody" type="application/javascript;version=1.8">
const APP_URL = "http://example.org";
const APP_MANIFEST = "http://example.org/manifest.webapp";
const CHILD_PROCESS_SHUTDOWN_MESSAGE = "child-process-shutdown";
let ppmm = SpecialPowers.Cc["@mozilla.org/parentprocessmessagemanager;1"]
.getService(SpecialPowers.Ci.nsIMessageBroadcaster);
let obs = SpecialPowers.Cc["@mozilla.org/observer-service;1"]
.getService(SpecialPowers.Ci.nsIObserverService);
/**
* Load the example.org site in an <iframe mozbrowser>
*
* @param isApp
* If true, the example.org site will be loaded as an app.
*/
function loadBrowser(isApp, callback) {
let iframe = document.createElement("iframe");
if (isApp) {
iframe.setAttribute("mozapp", APP_MANIFEST);
}
SpecialPowers.wrap(iframe).mozbrowser = true;
iframe.src = APP_URL;
document.getElementById("content").appendChild(iframe);
iframe.addEventListener("mozbrowserloadend", function onloadend() {
iframe.removeEventListener("mozbrowserloadend", onloadend);
callback(iframe);
});
}
/**
* Prepare the child process for an intentional crash. This is to keep
* the leak automation tools happy.
*
* This also allows us to acquire the process message manaager that
* corresponds to the process by sending a message to a frame script
* in the content process and having it reply to us via the child
* process message manager.
*/
function prepareProcess(frameMM, callback) {
let frameScript = 'data:,\
privateNoteIntentionalCrash();\
var cpmm = Components.classes["@mozilla.org/childprocessmessagemanager;1"]\
.getService(Components.interfaces.nsISyncMessageSender);\
addMessageListener("TestChild:Ohai", function receiveMessage(msg) {\
cpmm.sendAsyncMessage("TestChild:Ohai");\
});';
frameMM.loadFrameScript(frameScript, false);
frameMM.sendAsyncMessage("TestChild:Ohai");
ppmm.addMessageListener("TestChild:Ohai", function receiveMessage(msg) {
ppmm.removeMessageListener("TestChild:Ohai", receiveMessage);
msg = SpecialPowers.wrap(msg);
callback(msg.target);
});
}
/**
* Expects an OOP frame's process to shut down and report four
* events/messages: an error event on the browser element, and a
* 'child-process-shutdown' message on both the frame and process
* message managers.
*/
function expectFrameProcessShutdown(iframe, frameMM, processMM, callback) {
let msgCount = 0;
function countMessage() {
msgCount += 1;
if (msgCount == 4) {
ok(true, "Observed all four expected events.");
callback();
}
};
iframe.addEventListener("mozbrowsererror", function onerror(event) {
iframe.removeEventListener("mozbrowsererror", onerror);
is(event.detail.type, "fatal", "Observed expected event.");
countMessage();
});
processMM.addMessageListener(CHILD_PROCESS_SHUTDOWN_MESSAGE, function receiveMessage() {
processMM.removeMessageListener(CHILD_PROCESS_SHUTDOWN_MESSAGE, receiveMessage);
ok(true, "Received 'child-process-shutdown' message from process message manager.");
countMessage();
});
frameMM.addMessageListener(CHILD_PROCESS_SHUTDOWN_MESSAGE, function receiveMessage() {
frameMM.removeMessageListener(CHILD_PROCESS_SHUTDOWN_MESSAGE, receiveMessage);
ok(true, "Received 'child-process-shutdown' message from frame message manager.");
countMessage();
});
obs.addObserver(function observe(subject, type, data) {
if (subject == SpecialPowers.unwrap(processMM)) {
obs.removeObserver(observe, "message-manager-disconnect");
ok(true, "Received 'message-manager-disconnect' notification with " +
"frame message manager");
countMessage();
}
}, "message-manager-disconnect", false);
}
function setUp() {
SpecialPowers.setBoolPref("dom.mozBrowserFramesEnabled", true);
SpecialPowers.setBoolPref("dom.ipc.browser_frames.oop_by_default", true);
SpecialPowers.addPermission("browser", true, window.document);
SpecialPowers.addPermission("embed-apps", true, window.document);
// TODO: remove in bug 820712
SpecialPowers.setBoolPref("network.disable.ipc.security", true);
runNextTest();
}
function makeKillTest(isApp) function testKill() {
loadBrowser(isApp, function (iframe) {
// We want to make sure we get notified on both the frame and
// process message managers.
let frameMM = SpecialPowers.getBrowserFrameMessageManager(iframe);
prepareProcess(frameMM, function (processMM) {
// Let's kill the content process by asking for a permission
// that it doesn't have.
ok(!processMM.assertPermission("frobnaz"),
"Content child should not have this permission");
expectFrameProcessShutdown(iframe, frameMM, processMM, function () {
iframe.parentNode.removeChild(iframe);
runNextTest();
});
});
});
}
function tearDown() {
SpecialPowers.clearUserPref("dom.mozBrowserFramesEnabled");
SpecialPowers.clearUserPref("dom.ipc.browser_frames.oop_by_default");
// TODO: remove in bug 820712
SpecialPowers.clearUserPref("network.disable.ipc.security");
SimpleTest.finish();
}
let _tests = [
setUp,
makeKillTest(false),
makeKillTest(true),
tearDown
]
function runNextTest() {
SimpleTest.executeSoon(_tests.shift());
}
function runTests() {
SimpleTest.waitForExplicitFinish();
runNextTest();
}
</script>
</pre>
</body>
</html>