chore: replaced lsof command with is-port-in-use script

Author: lquixada

bin/is-port-in-use

@@ -0,0 +1,17 @@
+#!/usr/bin/env node
+
+const net = require('net')
+const args = process.argv.slice(2)
+const port = args[0] || 8000
+const server = net.createServer().listen(port)
+
+server.on('listening', () => {
+  server.close()
+  console.log('Port ' + port + ' is available.')
+  process.exit(0)
+})
+
+server.on('error', () => {
+  console.log('Port ' + port + ' is in use.')
+  process.exit(1)
+})

test/setup/server.sh

@@ -11,7 +11,7 @@ kill_server() {
 }
 
 is_server_ready() {
-  lsof -i :8000 > /dev/null
+  ./bin/is-port-in-use > /dev/null
 }
 
 wait_server() {