41b16e48d9
Co-authored-by: Steve McClure <steve.mcclure@mongodb.com> Co-authored-by: Teo Voinea <teo.voinea@mongodb.com> GitOrigin-RevId: e91b166957c79f6576efe2c6fbf6d796a9636905
23 lines
848 B
JavaScript
23 lines
848 B
JavaScript
import {describe, it} from "jstests/libs/mochalite.js";
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import {performance} from "std:performance";
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describe("std:performance with performance internal binding", function () {
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it("uses a monotonic high-resolution clock", function () {
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const first = performance.now();
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const second = performance.now();
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assert.gte(first, 0, "performance.now() should be non-negative");
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assert.gte(second, first, "performance.now() should be monotonic");
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let sawFractionalValue = false;
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for (let i = 0; i < 20000; ++i) {
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const sample = performance.now();
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if (!Number.isInteger(sample)) {
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sawFractionalValue = true;
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break;
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}
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}
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assert(sawFractionalValue, "performance.now() should report sub-millisecond precision");
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});
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});
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