adjusted code rabbit comments

Author: rramadhani14

test/cluster/cluster.cjs

@@ -5,7 +5,7 @@ const { node } = require('@elysiajs/node')
 
 const workersAmount = 5
 const port = 3000
-// Use args to differentiate paramater
+// Use args to differentiate parameter
 // So code is more compact
 const arg2 = process.argv[2]
 let parameter
@@ -27,47 +27,51 @@ if (arg2 === 'port') {
 	}
 }
 
+/**
+ * Method to stop workers and then exit the current program 
+ * @param {Worker[]} workers list of workers
+ * @param {number} code exit code
+ */
 function shutdown(workers, code) {
 	workers.forEach((it) => {
 		it.kill()
 	})
 	exit(code)
 }
 
-
+/**
+ * Start primary node
+ * This will create workers and then send request to primary which will then
+ * spread the requests to the workers. After that it will check for the result.
+ */
 async function startPrimary() {
 	let workers = []
 	for (let i = 0; i < workersAmount; i++) {
 		workers.push(cluster.fork())
 	}
 	// we need some delay to allow Elysia to initialize
-	const delayPromise = new Promise((resolve, reject) => {
-		setTimeout(() => {
-			resolve()
-		}, 2000)
-	})
-	await delayPromise
+	await new Promise((resolve) => setTimeout(resolve, 2000))
 
 	// Make n API calls, we should receive n different PIDs back
 	// Checking if a server is run can only be done this way at the moment
 	// because error is really deep in srvx and async
 	// Even callback in Elysia.listen will be still be run even on error
 	const promises = workers.map(async (it) => {
 		const result = await fetch(`http://localhost:${port}`)
-		const pid = await result.text()
-		return pid
+		const workerPid = await result.text()
+		return workerPid
 	})
 	const result = await Promise.all(promises)
 	const pidsCount = new Set(result).size;
 	if (arg2 === 'false') {
-		if (pidsCount != 1) {
+		if (pidsCount !== 1) {
 			console.error('❌ Server should return 1 pid.')
 			shutdown(workers, 1)
 		}
 		console.log('✅ Test exclusive mode succeed!')
 		shutdown(workers, 0)
 	}
-	if (pidsCount != workersAmount) {
+	if (pidsCount !== workersAmount) {
 		console.error("❌ Clustering error, number of pids doesn't match.")
 		shutdown(workers, 1)
 	}