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Test Info:
/* Any copyright is dedicated to the Public Domain.
const RELATIVE_DIR = "toolkit/components/pdfjs/test/";
async function testSlowScriptNotification({ description, url, embedded }) {
Services.fog.testResetFOG();
const notificationPromise = BrowserTestUtils.waitForGlobalNotificationBar(
window,
"process-hang"
);
// Avoid waiting for load because this test intentionally hangs the viewer.
const tab = await BrowserTestUtils.openNewForegroundTab({
gBrowser,
url,
waitForLoad: false,
});
try {
const notification = await notificationPromise;
ok(true, `${description}: the slow script notification must be displayed`);
const stopButton =
notification.buttonContainer.querySelector("[label='Stop']");
ok(stopButton, `${description}: the notification must have a Stop button`);
stopButton.click();
const events = Glean.slowScriptWarning.shownContent.testGetValue();
is(events?.length, 1, `${description}: one hang event must be recorded`);
is(
events?.[0]?.extra.uri_type,
"content",
`${description}: the PDF script must be classified as content`
);
const target = embedded
? tab.linkedBrowser.browsingContext.children[0]
: tab.linkedBrowser;
ok(target, `${description}: the PDF browsing context must exist`);
await SpecialPowers.spawn(target, [], () => {});
ok(true, `${description}: the viewer must be responsive again`);
} finally {
BrowserTestUtils.removeTab(tab);
}
}
// The PDF contains an infinite loop.
add_task(async function test_slow_script_notification() {
await SpecialPowers.pushPrefEnv({
set: [
["pdfjs.enableScripting", true],
["dom.ipc.reportProcessHangs", true],
["dom.max_script_run_time", 2],
["dom.max_script_run_time.require_critical_input", false],
],
});
try {
await testSlowScriptNotification({
description: "Top-level PDF",
url: TESTROOT + "file_pdfjs_slow_script.pdf",
embedded: false,
});
await testSlowScriptNotification({
description: "Embedded PDF",
url: TESTROOT + "file_pdfjs_slow_script.html",
embedded: true,
});
} finally {
await SpecialPowers.popPrefEnv();
}
});