1/* eslint-disable node-core/require-common-first, node-core/required-modules */ 2 3'use strict'; 4 5const assert = require('assert'); 6const fork = require('child_process').fork; 7const path = require('path'); 8 9const runjs = path.join(__dirname, '..', '..', 'benchmark', 'run.js'); 10 11function runBenchmark(name, env) { 12 const argv = ['test']; 13 14 argv.push(name); 15 16 const mergedEnv = { ...process.env, ...env }; 17 18 const child = fork(runjs, argv, { 19 env: mergedEnv, 20 stdio: ['inherit', 'pipe', 'inherit', 'ipc'] 21 }); 22 child.stdout.setEncoding('utf8'); 23 24 let stdout = ''; 25 child.stdout.on('data', (line) => { 26 stdout += line; 27 }); 28 29 child.on('exit', (code, signal) => { 30 assert.strictEqual(code, 0); 31 assert.strictEqual(signal, null); 32 // This bit makes sure that each benchmark file is being sent settings such 33 // that the benchmark file runs just one set of options. This helps keep the 34 // benchmark tests from taking a long time to run. Therefore, each benchmark 35 // file should result in three lines of output: a blank line, a line with 36 // the name of the benchmark file, and a line with the only results that we 37 // get from testing the benchmark file. 38 assert.ok( 39 /^(?:\n.+?\n.+?\n)+$/.test(stdout), 40 `benchmark file not running exactly one configuration in test: ${stdout}` 41 ); 42 }); 43} 44 45module.exports = runBenchmark; 46