firefox-main/toolkit/components/printing/tests/browser_print_silent_about_config.js (file symbol)

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Test Info: Warnings

/* Any copyright is dedicated to the Public Domain.
"use strict";
add_task(async function test_print_silent_about_config() {
// The relevant thing for this test is that this is a parent process page,
// but about:config is complex enough to trigger some interesting
// code-paths.
await SpecialPowers.pushPrefEnv({
set: [
["print.always_print_silent", true],
["print_printer", "Mozilla Save to PDF"],
],
});
await BrowserTestUtils.withNewTab("about:config", async browser => {
await SpecialPowers.spawn(browser, [], async () => {
await new Promise(r => {
content.addEventListener("afterprint", r, { once: true });
content.print();
});
});
});
info("waiting for print process to finish");
// Needed to avoid leaked docshells etc at end of test.
await BrowserTestUtils.waitForMutationCondition(
document.documentElement,
{ childList: true },
() => {
return !document.querySelector(":root > browser");
}
);
ok(true, "Didn't crash, hopefully");
});