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Closes #22958 Used the same type as in: https://github.com/microsoft/TypeScript/blob/main/src/lib/dom.generated.d.ts#L26114 --------- Signed-off-by: Viktor Marinho <56888067+viktormarinho@users.noreply.github.com>
58 lines
1.7 KiB
TypeScript
58 lines
1.7 KiB
TypeScript
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
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import { assert, assertEquals, assertThrows } from "./test_util.ts";
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// Basic tests for the structured clone algorithm. Mainly tests TypeScript
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// typings. Actual functionality is tested in WPT.
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Deno.test("self.structuredClone", async () => {
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const arrayOriginal = ["hello world"];
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const channelOriginal = new MessageChannel();
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const [arrayCloned, portTransferred] = self
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.structuredClone(
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[arrayOriginal, channelOriginal.port2] as [string[], MessagePort],
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{
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transfer: [channelOriginal.port2],
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},
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);
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assert(arrayOriginal !== arrayCloned); // not the same identity
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assertEquals(arrayCloned, arrayOriginal); // but same value
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channelOriginal.port1.postMessage("1");
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await new Promise((resolve) => portTransferred.onmessage = () => resolve(1));
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channelOriginal.port1.close();
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portTransferred.close();
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});
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Deno.test("correct DataCloneError message", () => {
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assertThrows(
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() => {
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const sab = new SharedArrayBuffer(1024);
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structuredClone(sab, { transfer: [sab] });
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},
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DOMException,
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"Value not transferable",
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);
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const ab = new ArrayBuffer(1);
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// detach ArrayBuffer
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structuredClone(ab, { transfer: [ab] });
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assertThrows(
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() => {
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structuredClone(ab, { transfer: [ab] });
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},
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DOMException,
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"ArrayBuffer at index 0 is already detached",
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);
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const ab2 = new ArrayBuffer(0);
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assertThrows(
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() => {
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structuredClone([ab2, ab], { transfer: [ab2, ab] });
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},
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DOMException,
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"ArrayBuffer at index 1 is already detached",
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);
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// ab2 should not be detached after above failure
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structuredClone(ab2, { transfer: [ab2] });
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});
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