1
0
Fork 0
mirror of https://github.com/denoland/deno.git synced 2024-12-23 23:59:59 -05:00
denoland-deno/cli/tests/unit/structured_clone_test.ts

20 lines
792 B
TypeScript
Raw Normal View History

import { assert, assertEquals } from "./test_util.ts";
// Basic tests for the structured clone algorithm. Mainly tests TypeScript
// typings. Actual functionality is tested in WPT.
Deno.test("self.structuredClone", async () => {
const arrayOriginal = ["hello world"];
const channelOriginal = new MessageChannel();
const [arrayCloned, portTransferred] = self
.structuredClone([arrayOriginal, channelOriginal.port2], {
transfer: [channelOriginal.port2],
});
assert(arrayOriginal !== arrayCloned); // not the same identity
assertEquals(arrayCloned, arrayOriginal); // but same value
channelOriginal.port1.postMessage("1");
await new Promise((resolve) => portTransferred.onmessage = () => resolve(1));
channelOriginal.port1.close();
portTransferred.close();
});