denoland-deno/benching/test.ts

import { test } from "../testing/mod.ts";
import { bench, runBenchmarks, BenchmarkTimer } from "./mod.ts";

import "example.ts";

test(async function benching() {
  bench(function forIncrementX1e9(b: BenchmarkTimer) {
    b.start();
    for (let i: number = 0; i < 1e9; i++);
    b.stop();
  });

  bench(function forDecrementX1e9(b: BenchmarkTimer) {
    b.start();
    for (let i: number = 1e9; i > 0; i--);
    b.stop();
  });

  bench(async function forAwaitFetchDenolandX10(b: BenchmarkTimer) {
    b.start();
    for (let i: number = 0; i < 10; i++) {
      await fetch("https://deno.land/");
    }
    b.stop();
  });

  bench(async function promiseAllFetchDenolandX10(b: BenchmarkTimer) {
    const urls = new Array(10).fill("https://deno.land/");
    b.start();
    await Promise.all(urls.map((denoland: string) => fetch(denoland)));
    b.stop();
  });

  bench({
    name: "runs100ForIncrementX1e6",
    runs: 100,
    func(b: BenchmarkTimer) {
      b.start();
      for (let i: number = 0; i < 1e6; i++);
      b.stop();
    }
  });

  bench(function throwing(b: BenchmarkTimer) {
    b.start();
    // Throws bc the timer's stop method is never called
  });

  await runBenchmarks({ skip: /throw/ });
});