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20 lines
412 B
JavaScript
20 lines
412 B
JavaScript
const { performance } = require("perf_hooks");
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global.expect.extend({
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toBeFasterThan: async (func, target) => {
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const start = performance.now();
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var error;
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try {
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await func();
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} catch (e) {
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error = e.toString();
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}
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const time = performance.now() - start;
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return {
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pass: time < target && !error,
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message: () => error || `${func.name} took ${time}ms of maximum ${target}`,
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};
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},
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});
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