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20 lines
792 B
TypeScript
20 lines
792 B
TypeScript
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import { assert, assertEquals } 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([arrayOriginal, channelOriginal.port2], {
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transfer: [channelOriginal.port2],
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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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