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Test Info:
/* Any copyright is dedicated to the Public Domain.
// Test that multiple concurrent top-level await expressions work as expected.
"use strict";
const TEST_URI =
"data:text/html;charset=utf-8,<!DOCTYPE html>Web Console test top-level await";
add_task(async function () {
// Enable await mapping.
await pushPref("devtools.debugger.features.map-await-expression", true);
const hud = await openNewTabAndConsole(TEST_URI);
await clearOutput(hud);
const delays = [3000, 500, 9000, 6000];
const inputs = delays.map(
delay => `await new Promise(
r => setTimeout(() => r("await-concurrent-" + ${delay}), ${delay}))`
);
// Let's wait for the message that sould be displayed last.
const onMessage = waitForMessageByType(
hud,
"await-concurrent-9000",
".result"
);
for (const input of inputs) {
execute(hud, input);
}
await onMessage;
const messages = hud.ui.outputNode.querySelectorAll(".message .message-body");
const messagesText = Array.from(messages).map(n => n.textContent);
const expectedMessages = [
...inputs,
`"await-concurrent-500"`,
`"await-concurrent-3000"`,
`"await-concurrent-6000"`,
`"await-concurrent-9000"`,
];
is(
JSON.stringify(messagesText, null, 2),
JSON.stringify(expectedMessages, null, 2),
"The output contains the the expected messages, in the expected order"
);
});