feat: start re-working stress testing

tests/stress/server.js

@@ -0,0 +1,59 @@
+const cp = require('node:child_process')
+const path = require('node:path')
+
+const { EXIT } = require('./consts')
+const CLI = require('./cli')
+
+const help_message = "Start the server configured for stress testing."
+
+const cli = CLI({
+  grammar: [
+    [["--help"], "Show this help message"],
+  ],
+})
+
+const help = (exit_code) => {
+  console.log("Usage: lamassu-server-stress-testing server ARGS...")
+  console.log(help_message)
+  cli.help()
+  return exit_code
+}
+
+const start_server = (args) =>
+  new Promise((resolve, reject) => {
+    const lamassu_server = path.join(__dirname, "../../bin/lamassu-server")
+    const ls = cp.fork(lamassu_server, args, {
+      cwd: process.cwd(),
+      encoding: 'utf8',
+      env: { LAMASSU_STRESS_TESTING: "YES" },
+    })
+
+    ls.on('error', (error) => {
+      console.log(error)
+      resolve(EXIT.EXCEPTION)
+    })
+
+    ls.on('exit', (code, signal) => {
+      console.error("lamassu-server code:", code)
+      console.error("lamassu-server signal:", signal)
+      resolve(typeof(code) === 'number' ? code : EXIT.EXCEPTION)
+    })
+  })
+
+const run = async (args) => {
+  const [err, options, positional] = cli.parse(args)
+  if (err) {
+    console.error(err)
+    return help(EXIT.BADARGS)
+  }
+
+  if (options.help)
+    return help(EXIT.OK)
+
+  return await start_server(positional)
+}
+
+module.exports = {
+  help_message,
+  run,
+}