Test for server.listen() hanging

test/integration/fixtures/start-server.js

@@ -0,0 +1,22 @@
+const DHT = require('../../../')
+
+/*
+  This test is put into a fixture to make sure that each run is its own.
+  It will exit with 0 if able to start server, and 1 if there was an error when starting.
+  It will hang if, for some reason, `await server.listen()` never returns [TBC: this is the bug I am hunting]
+*/
+
+async function run () {
+  const node = new DHT()
+  const server = node.createServer(() => { })
+  await server.listen()
+}
+
+run()
+  .then(() => {
+    process.exit(0)
+  })
+  .catch(err => {
+    console.error(err)
+    process.exit(1)
+  })

test/integration/server-test.js

@@ -0,0 +1,30 @@
+const { spawn } = require('child_process')
+const test = require('brittle')
+
+const COUNT = 10000
+
+test.skip(`Start a server ${COUNT} times`, { timeout: 0 }, async t => {
+  t.plan(COUNT)
+
+  for (let i = 0; i < COUNT; i++) {
+    const startTime = Date.now()
+    await t.test(async serverTest => {
+      serverTest.plan(1)
+
+      await new Promise((resolve, reject) => {
+        const process = spawn('node', ['fixtures/start-server.js', i])
+        process.stdout.on('data', data => serverTest.fail(data.toString()))
+        process.stderr.on('data', data => serverTest.fail(data.toString()))
+        process.on('exit', (code) => {
+          if (code === 0) {
+            serverTest.pass(`Took ${Date.now() - startTime} ms`)
+            resolve()
+          } else {
+            serverTest.fail(`Test ${i} failed with code ${code}`)
+            reject()
+          }
+        })
+      })
+    })
+  }
+})