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benchmark/test_runner/run-single-test-file.js
62 строки
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Pietro Marchini
test_runner: run single test file benchmark
09 янв 2025, 14:12
Не верифицирован
09 янв 2025, 14:12
8975748
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'use strict'; const common = require('../common'); const tmpdir = require('../../test/common/tmpdir'); const { run } = require('node:test'); const { writeFileSync, mkdirSync } = require('node:fs'); const { join } = require('node:path'); const fixtureContent = "const test = require('node:test'); test('test has ran');"; function makeTestDirWithFiles(dirPath, count) { mkdirSync(dirPath); for (let i = 0; i < count; i++) { writeFileSync(join(dirPath, `test-${i}.js`), fixtureContent); } } function getTestDirPath(numberOfTestFiles) { return join(tmpdir.path, `${numberOfTestFiles}-tests`); } function setup(numberOfTestFiles) { tmpdir.refresh(); const dirPath = getTestDirPath(numberOfTestFiles); makeTestDirWithFiles(dirPath, numberOfTestFiles); } /** * This benchmark evaluates the overhead of running a single test file under different * isolation modes. * Specifically, it compares the performance of running tests in the * same process versus creating multiple processes. */ const bench = common.createBenchmark(main, { numberOfTestFiles: [1, 10, 100], isolation: ['none', 'process'], }, { // We don't want to test the reporter here flags: ['--test-reporter=./benchmark/fixtures/empty-test-reporter.js'], }); async function runBenchmark({ numberOfTestFiles, isolation }) { const dirPath = getTestDirPath(numberOfTestFiles); const stream = run({ cwd: dirPath, isolation, concurrency: false, // We don't want to run tests concurrently }); // eslint-disable-next-line no-unused-vars for await (const _ of stream); return numberOfTestFiles; } function main(params) { setup(params.numberOfTestFiles); bench.start(); runBenchmark(params).then(() => { bench.end(1); }); }