add hw2

node_modules/thread-stream/test/close-on-gc.js

@@ -0,0 +1,37 @@
+'use strict'
+
+const { join } = require('path')
+const ThreadStream = require('..')
+const assert = require('assert')
+
+let worker = null
+
+function setup () {
+  const stream = new ThreadStream({
+    filename: join(__dirname, 'to-file.js'),
+    workerData: { dest: process.argv[2] },
+    sync: true
+  })
+
+  worker = stream.worker
+
+  stream.write('hello')
+  stream.write(' ')
+  stream.write('world\n')
+  stream.flushSync()
+  stream.unref()
+
+  // the stream object goes out of scope here
+  setImmediate(gc) // eslint-disable-line
+}
+
+setup()
+
+let exitEmitted = false
+worker.on('exit', function () {
+  exitEmitted = true
+})
+
+process.on('exit', function () {
+  assert.strictEqual(exitEmitted, true)
+})