Add benchmarks for node only mode and mock timers.

The only benchmark covers creating selected and non-selected tests when
running with --test-only.

The mock timers benchmark covers enabling timer mocks, setTimeout,
setInterval, setImmediate, scheduler.wait, AbortSignal.timeout,
mocked Date.now(), setTime(), and runAll().

Refs: #55723
Signed-off-by: Luan Muniz <luan@luanmuniz.com.br>

Author: luanmuniz

benchmark/test_runner/mock-timers.js

@@ -0,0 +1,262 @@
+'use strict';
+
+const common = require('../common');
+const assert = require('node:assert');
+const { test } = require('node:test');
+const nodeTimersPromises = require('node:timers/promises');
+
+const bench = common.createBenchmark(main, {
+  n: [1, 10, 100, 1000],
+  mode: [
+    'enable-empty-apis',
+    'enable-setTimeout',
+    'enable-setInterval',
+    'enable-setImmediate',
+    'enable-Date',
+    'enable-scheduler.wait',
+    'enable-AbortSignal.timeout',
+    'enable-all',
+    'enable-default',
+    'setTimeout',
+    'setInterval',
+    'setImmediate',
+    'scheduler.wait',
+    'AbortSignal.timeout',
+    'Date',
+    'setTime',
+    'runAll',
+  ],
+}, {
+  // We don't want to test the reporter here.
+  flags: ['--test-reporter=./benchmark/fixtures/empty-test-reporter.js'],
+});
+
+function benchmarkEnable(n, mode) {
+  const enableMode = mode.replace('enable-', '');
+  let enableOptions = { apis: [enableMode] };
+
+  if (enableMode === 'all') {
+    enableOptions.apis = ['setTimeout', 'setInterval', 'setImmediate', 'Date', 'scheduler.wait', 'AbortSignal.timeout'];
+  }
+
+  if (enableMode === 'empty-apis') {
+    enableOptions.apis = [];
+  }
+
+  if (enableMode === 'default') {
+    enableOptions = undefined;
+  }
+
+  test((t) => {
+    bench.start();
+
+    for (let i = 0; i < n; i++) {
+      t.mock.timers.enable(enableOptions);
+      t.mock.timers.reset();
+    }
+
+    bench.end(n);
+  });
+}
+
+function benchmarkSetTimeout(n) {
+  test((t) => {
+    let noDead;
+
+    t.mock.timers.enable({ apis: ['setTimeout'] });
+    bench.start();
+
+    for (let i = 0; i < n; i++) {
+      setTimeout(() => {
+        noDead = i;
+      }, i + 1);
+    }
+
+    t.mock.timers.tick(n + 1);
+    bench.end(n);
+
+    assert.strictEqual(noDead, n - 1);
+  });
+}
+
+function benchmarkSetInterval(n) {
+  test((t) => {
+    let noDead = 0;
+
+    t.mock.timers.enable({ apis: ['setInterval'] });
+
+    setInterval(() => {
+      noDead++;
+    }, 1);
+
+    bench.start();
+
+    t.mock.timers.tick(n);
+
+    bench.end(n);
+
+    assert.strictEqual(noDead, n);
+  });
+}
+
+function benchmarkSetImmediate(n) {
+  test((t) => {
+    let noDead;
+
+    t.mock.timers.enable({ apis: ['setImmediate'] });
+
+    bench.start();
+
+    for (let i = 0; i < n; i++) {
+      setImmediate(() => {
+        noDead = i;
+      });
+    }
+
+    t.mock.timers.tick(0);
+    bench.end(n);
+
+    assert.strictEqual(noDead, n - 1);
+  });
+}
+
+function benchmarkSchedulerWait(n) {
+  test(async (t) => {
+    const promises = [];
+    let noDead;
+
+    t.mock.timers.enable({ apis: ['scheduler.wait'] });
+
+    bench.start();
+
+    for (let i = 0; i < n; i++) {
+      promises.push(nodeTimersPromises.scheduler.wait(i + 1).then(() => {
+        noDead = i;
+      }));
+    }
+
+    t.mock.timers.tick(n + 1);
+    await Promise.all(promises);
+    bench.end(n);
+
+    assert.strictEqual(noDead, n - 1);
+  });
+}
+
+function benchmarkAbortSignalTimeout(n) {
+  test((t) => {
+    let noDead;
+
+    t.mock.timers.enable({ apis: ['AbortSignal.timeout'] });
+
+    bench.start();
+
+    for (let i = 0; i < n; i++) {
+      noDead = AbortSignal.timeout(i + 1);
+    }
+
+    t.mock.timers.tick(n + 1);
+    bench.end(n);
+
+    assert.strictEqual(noDead.aborted, true);
+  });
+}
+
+function benchmarkDate(n) {
+  test((t) => {
+    let noDead;
+
+    t.mock.timers.enable({ apis: ['Date'] });
+
+    bench.start();
+
+    for (let i = 0; i < n; i++) {
+      noDead = Date.now();
+    }
+
+    bench.end(n);
+
+    assert.strictEqual(noDead, 0);
+  });
+}
+
+function benchmarkSetTime(n) {
+  test((t) => {
+    let noDead;
+
+    t.mock.timers.enable({ apis: ['Date'] });
+
+    bench.start();
+
+    for (let i = 0; i < n; i++) {
+      t.mock.timers.setTime(i);
+      noDead = Date.now();
+    }
+
+    bench.end(n);
+
+    assert.strictEqual(noDead, n - 1);
+  });
+}
+
+function benchmarkRunAll(n) {
+  test((t) => {
+    let noDead = 0;
+
+    t.mock.timers.enable({ apis: ['setTimeout'] });
+
+    for (let i = 0; i < n; i++) {
+      setTimeout(() => {
+        noDead++;
+      }, i + 1);
+    }
+
+    bench.start();
+
+    t.mock.timers.runAll();
+
+    bench.end(n);
+
+    assert.strictEqual(noDead, n);
+  });
+}
+
+function main({ n, mode }) {
+  switch (mode) {
+    case 'enable-empty-apis':
+    case 'enable-setTimeout':
+    case 'enable-setInterval':
+    case 'enable-setImmediate':
+    case 'enable-Date':
+    case 'enable-scheduler.wait':
+    case 'enable-AbortSignal.timeout':
+    case 'enable-all':
+    case 'enable-default':
+      benchmarkEnable(n, mode);
+      break;
+    case 'setTimeout':
+      benchmarkSetTimeout(n);
+      break;
+    case 'setInterval':
+      benchmarkSetInterval(n);
+      break;
+    case 'setImmediate':
+      benchmarkSetImmediate(n);
+      break;
+    case 'scheduler.wait':
+      benchmarkSchedulerWait(n);
+      break;
+    case 'AbortSignal.timeout':
+      benchmarkAbortSignalTimeout(n);
+      break;
+    case 'Date':
+      benchmarkDate(n);
+      break;
+    case 'setTime':
+      benchmarkSetTime(n);
+      break;
+    case 'runAll':
+      benchmarkRunAll(n);
+      break;
+  }
+}

benchmark/test_runner/test-only.js

@@ -0,0 +1,44 @@
+'use strict';
+
+const common = require('../common');
+const { finished } = require('node:stream/promises');
+const reporter = require('../fixtures/empty-test-reporter');
+const { test } = require('node:test');
+
+const bench = common.createBenchmark(main, {
+  n: [1, 10, 100, 1000],
+  selected: [1],
+}, {
+  // We don't want to test the reporter here.
+  flags: [
+    '--test-reporter=./benchmark/fixtures/empty-test-reporter.js',
+    '--test-only',
+  ],
+});
+
+async function run({ n, selected }) {
+  // eslint-disable-next-line no-unused-vars
+  let avoidV8Optimization;
+
+  for (let i = 0; i < selected; i++) {
+    test(`selected-${i}`, { only: true }, () => {
+      avoidV8Optimization = i;
+    });
+  }
+
+  for (let i = 0; i < n; i++) {
+    test(`not-selected-${i}`, () => {
+      throw new Error(`This test ${i} should not run.`);
+    });
+  }
+
+  return finished(reporter);
+}
+
+function main(params) {
+  bench.start();
+
+  run(params).then(() => {
+    bench.end(params.n);
+  });
+}