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Test Info:
/* Any copyright is dedicated to the Public Domain.
"use strict";
add_task(async function () {
await addTab("about:blank");
info(`Open browser console`);
const hud = await BrowserConsoleManager.openBrowserConsoleOrFocus();
info(`Clear existing messages`);
const onMessagesCleared = hud.ui.once("messages-cleared");
await clearOutput(hud);
await onMessagesCleared;
info(`Create a DOM window object`);
await hud.commands.scriptCommand.execute(`
globalThis.myBrowser = Services.appShell.createWindowlessBrowser();
globalThis.myWindow = myBrowser.document.defaultView;
`);
info(`Check objects inheriting from a DOM window`);
async function check(input, expected, name) {
const msg = await executeAndWaitForResultMessage(hud, input, "");
is(msg.node.querySelector(".message-body").textContent, expected, name);
}
await check("Object.create(myWindow)", "Object { }", "Empty object");
await check(
"Object.create(myWindow, { location: { value: 1, enumerable: true } })",
"Object { location: 1 }",
"Object with 'location' property"
);
await check(
`Object.create(myWindow, {
location: {
get() {
console.error("pwned!");
return { href: "Oops" };
},
enumerable: true,
},
})`,
"Object { location: Getter }",
"Object with 'location' unsafe getter"
);
info(`Check that no error was logged`);
// wait a bit so potential errors can be printed
await wait(1000);
const error = findErrorMessage(hud, "", ":not(.network)");
if (error) {
ok(false, `Got error ${JSON.stringify(error.textContent)}`);
} else {
ok(true, "No error was logged");
}
info(`Cleanup`);
await hud.commands.scriptCommand.execute(`
myBrowser.close();
delete globalThis.myBrowser;
delete globalThis.myWindow;
`);
});