flow like the river

BACK_BACK/node_modules/hpagent/test/hang-socket/http.js

@@ -0,0 +1,67 @@
+'use strict'
+
+const http = require('http')
+const { createServer, SERVER_HOSTNAME } = require('../utils')
+const { HttpProxyAgent } = require('../../')
+
+function request (opts) {
+  return new Promise((resolve, reject) => {
+    const req = http.request(opts, resolve)
+    req.on('error', reject)
+    req.end(opts.body)
+  })
+}
+
+const timeout = setTimeout(() => {
+  console.log('The http agent is not cleaning up hanging sockets')
+  process.exit(1)
+}, 5000)
+
+async function run () {
+  const server = await createServer()
+  server.on('connect', (request, socket, head) => {
+    socket.on('end', () => {
+      clearTimeout(timeout)
+    })
+    const lines = [
+      'HTTP/1.1 403 FORBIDDEN',
+      '',
+      'Forbidden'
+    ]
+    socket.write(lines.join('\r\n'))
+  })
+
+  const agent = new HttpProxyAgent({
+    keepAlive: true,
+    keepAliveMsecs: 1000,
+    maxSockets: 256,
+    maxFreeSockets: 256,
+    scheduling: 'lifo',
+    timeout: 500,
+    proxy: `http://${SERVER_HOSTNAME}:${server.address().port}`
+  })
+
+  try {
+    await request({
+      method: 'GET',
+      hostname: 'www.example.com',
+      port: '',
+      path: '/',
+      agent
+    })
+    console.error(new Error('Should throw'))
+    process.exit(1)
+  } catch (err) {
+    if (err.message !== 'Bad response: 403') {
+      console.error(new Error('Expected a different error'))
+      process.exit(1)
+    }
+  }
+
+  server.close()
+}
+
+run().catch(err => {
+  console.error(err)
+  process.exit(1)
+})

BACK_BACK/node_modules/hpagent/test/hang-socket/https.js

@@ -0,0 +1,67 @@
+'use strict'
+
+const https = require('https')
+const { createSecureServer, SERVER_HOSTNAME } = require('../utils')
+const { HttpsProxyAgent } = require('../../')
+
+function request (opts) {
+  return new Promise((resolve, reject) => {
+    const req = https.request(opts, resolve)
+    req.on('error', reject)
+    req.end(opts.body)
+  })
+}
+
+const timeout = setTimeout(() => {
+  console.log('The https agent is not cleaning up hanging sockets')
+  process.exit(1)
+}, 5000)
+
+async function run () {
+  const server = await createSecureServer()
+  server.on('connect', (request, socket, head) => {
+    socket.on('end', () => {
+      clearTimeout(timeout)
+    })
+    const lines = [
+      'HTTP/1.1 403 FORBIDDEN',
+      '',
+      'Forbidden'
+    ]
+    socket.write(lines.join('\r\n'))
+  })
+
+  const agent = new HttpsProxyAgent({
+    keepAlive: true,
+    keepAliveMsecs: 1000,
+    maxSockets: 256,
+    maxFreeSockets: 256,
+    scheduling: 'lifo',
+    timeout: 500,
+    proxy: `https://${SERVER_HOSTNAME}:${server.address().port}`
+  })
+
+  try {
+    await request({
+      method: 'GET',
+      hostname: 'www.example.com',
+      port: '',
+      path: '/',
+      agent
+    })
+    console.error(new Error('Should throw'))
+    process.exit(1)
+  } catch (err) {
+    if (err.message !== 'Bad response: 403') {
+      console.error(new Error('Expected a different error, got:', err.message))
+      process.exit(1)
+    }
+  }
+
+  server.close()
+}
+
+run().catch(err => {
+  console.error(err)
+  process.exit(1)
+})

BACK_BACK/node_modules/hpagent/test/hang-socket/runner.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+node test/hang-socket/http.js
+node test/hang-socket/https.js