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https://github.com/denoland/deno
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16 lines
466 B
TypeScript
16 lines
466 B
TypeScript
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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import { unitTest, assert, createResolvable } from "./test_util.ts";
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unitTest({ perms: { hrtime: false } }, async function performanceNow(): Promise<
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void
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> {
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const resolvable = createResolvable();
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const start = performance.now();
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setTimeout((): void => {
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const end = performance.now();
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assert(end - start >= 10);
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resolvable.resolve();
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}, 10);
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await resolvable;
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});
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