test(compression): add ERR_STREAM_ALREADY_FINISHED

Author: fernandolguevara

test/compression.js

@@ -111,7 +111,7 @@ describe('compression()', function () {
     })
   })
 
-  it('res.write() should throw ERR_STREAM_DESTROYED when destoyed stream', function (done) {
+  it('res.write() should throw ERR_STREAM_DESTROYED when stream is already destroyed', function (done) {
     var server = createServer({ threshold: 0 }, function (req, res) {
       res.setHeader('Content-Type', 'text/plain')
       res.end('hello world')
@@ -131,6 +131,26 @@ describe('compression()', function () {
       .expect(200, done)
   })
 
+  it('res.write() should throw ERR_STREAM_ALREADY_FINISHED when stream is already finished', function (done) {
+    var server = createServer({ threshold: 0 }, function (req, res) {
+      res.setHeader('Content-Type', 'text/plain')
+      res.end('hello world')
+
+      server.on('close', function () {
+        res.end(function (err) {
+          assert.ok(err.code === 'ERR_STREAM_ALREADY_FINISHED')
+        })
+      })
+    })
+
+    request(server)
+      .get('/')
+      .set('Accept-Encoding', 'gzip')
+      .expect(shouldHaveHeader('Content-Encoding'))
+      .expect(shouldHaveBodyLength('hello world'.length))
+      .expect(200, done)
+  })
+
   it('res.write() should call callback if passsed', function (done) {
     var server = createServer({ threshold: 0 }, function (req, res) {
       res.setHeader('Content-Type', 'text/plain')