add hw2

node_modules/thread-stream/test/uncaughtException.js

@@ -0,0 +1,21 @@
+'use strict'
+
+const { Writable } = require('stream')
+
+// Nop console.error to avoid printing things out
+console.error = () => {}
+
+setImmediate(function () {
+  throw new Error('kaboom')
+})
+
+async function run (opts) {
+  const stream = new Writable({
+    write (chunk, enc, cb) {
+      cb()
+    }
+  })
+  return stream
+}
+
+module.exports = run