diff --git a/test/json.js b/test/json.js
index a69cc767..a5b3d8f3 100644
--- a/test/json.js
+++ b/test/json.js
@@ -143,14 +143,10 @@ describe('bodyParser.json()', function(){
     })
   })
 
-  describe('with limit option', function(){
-    it('should 413 when over limit with Content-Length', function(done){
-      var buf = new Buffer(1024)
-      var server = createServer({ limit: '1kb' })
-
-      buf.fill('.')
-
-      request(server)
+  describe('with limit option', function () {
+    it('should 413 when over limit with Content-Length', function (done) {
+      var buf = allocBuffer(1024, '.')
+      request(createServer({ limit: '1kb' }))
       .post('/')
       .set('Content-Type', 'application/json')
       .set('Content-Length', '1034')
@@ -158,12 +154,9 @@ describe('bodyParser.json()', function(){
       .expect(413, done)
     })
 
-    it('should 413 when over limit with chunked encoding', function(done){
-      var buf = new Buffer(1024)
+    it('should 413 when over limit with chunked encoding', function (done) {
+      var buf = allocBuffer(1024, '.')
       var server = createServer({ limit: '1kb' })
-
-      buf.fill('.')
-
       var test = request(server).post('/')
       test.set('Content-Type', 'application/json')
       test.set('Transfer-Encoding', 'chunked')
@@ -172,25 +165,20 @@ describe('bodyParser.json()', function(){
       test.expect(413, done)
     })
 
-    it('should accept number of bytes', function(done){
-      var buf = new Buffer(1024)
-      var server = createServer({ limit: 1024 })
-
-      buf.fill('.')
-
-      request(server)
+    it('should accept number of bytes', function (done) {
+      var buf = allocBuffer(1024, '.')
+      request(createServer({ limit: 1024 }))
       .post('/')
       .set('Content-Type', 'application/json')
       .send(JSON.stringify({ str: buf.toString() }))
       .expect(413, done)
     })
 
-    it('should not change when options altered', function(done){
-      var buf = new Buffer(1024)
+    it('should not change when options altered', function (done) {
+      var buf = allocBuffer(1024, '.')
       var options = { limit: '1kb' }
       var server = createServer(options)
 
-      buf.fill('.')
       options.limit = '100kb'
 
       request(server)
@@ -200,12 +188,8 @@ describe('bodyParser.json()', function(){
       .expect(413, done)
     })
 
-    it('should not hang response', function(done){
-      var buf = new Buffer(1024 * 10)
-      var server = createServer({ limit: '1kb' })
-
-      buf.fill('.')
-
+    it('should not hang response', function (done) {
+      var buf = allocBuffer(10240, '.')
       var server = createServer({ limit: '8kb' })
       var test = request(server).post('/')
       test.set('Content-Type', 'application/json')
@@ -498,6 +482,16 @@ describe('bodyParser.json()', function(){
   })
 })
 
+function allocBuffer (size, fill) {
+  if (Buffer.alloc) {
+    return Buffer.alloc(size, fill)
+  }
+
+  var buf = new Buffer(size)
+  buf.fill(fill)
+  return buf
+}
+
 function createServer(opts){
   var _bodyParser = typeof opts !== 'function'
     ? bodyParser.json(opts)
diff --git a/test/raw.js b/test/raw.js
index 7a023411..a15ffeb8 100644
--- a/test/raw.js
+++ b/test/raw.js
@@ -66,13 +66,10 @@ describe('bodyParser.raw()', function(){
     .expect(200, 'buf:746865207573657220697320746f6269', done)
   })
 
-  describe('with limit option', function(){
-    it('should 413 when over limit with Content-Length', function(done){
-      var buf = new Buffer(1028)
+  describe('with limit option', function () {
+    it('should 413 when over limit with Content-Length', function (done) {
+      var buf = allocBuffer(1028, '.')
       var server = createServer({ limit: '1kb' })
-
-      buf.fill('.')
-
       var test = request(server).post('/')
       test.set('Content-Type', 'application/octet-stream')
       test.set('Content-Length', '1028')
@@ -80,12 +77,9 @@ describe('bodyParser.raw()', function(){
       test.expect(413, done)
     })
 
-    it('should 413 when over limit with chunked encoding', function(done){
-      var buf = new Buffer(1028)
+    it('should 413 when over limit with chunked encoding', function (done) {
+      var buf = allocBuffer(1028, '.')
       var server = createServer({ limit: '1kb' })
-
-      buf.fill('.')
-
       var test = request(server).post('/')
       test.set('Content-Type', 'application/octet-stream')
       test.set('Transfer-Encoding', 'chunked')
@@ -93,24 +87,20 @@ describe('bodyParser.raw()', function(){
       test.expect(413, done)
     })
 
-    it('should accept number of bytes', function(done){
-      var buf = new Buffer(1028)
+    it('should accept number of bytes', function (done) {
+      var buf = allocBuffer(1028, '.')
       var server = createServer({ limit: 1024 })
-
-      buf.fill('.')
-
       var test = request(server).post('/')
       test.set('Content-Type', 'application/octet-stream')
       test.write(buf)
       test.expect(413, done)
     })
 
-    it('should not change when options altered', function(done){
-      var buf = new Buffer(1028)
+    it('should not change when options altered', function (done) {
+      var buf = allocBuffer(1028, '.')
       var options = { limit: '1kb' }
       var server = createServer(options)
 
-      buf.fill('.')
       options.limit = '100kb'
 
       var test = request(server).post('/')
@@ -119,12 +109,8 @@ describe('bodyParser.raw()', function(){
       test.expect(413, done)
     })
 
-    it('should not hang response', function(done){
-      var buf = new Buffer(1024 * 10)
-      var server = createServer({ limit: '1kb' })
-
-      buf.fill('.')
-
+    it('should not hang response', function (done) {
+      var buf = allocBuffer(10240, '.')
       var server = createServer({ limit: '8kb' })
       var test = request(server).post('/')
       test.set('Content-Type', 'application/octet-stream')
@@ -341,6 +327,16 @@ describe('bodyParser.raw()', function(){
   })
 })
 
+function allocBuffer (size, fill) {
+  if (Buffer.alloc) {
+    return Buffer.alloc(size, fill)
+  }
+
+  var buf = new Buffer(size)
+  buf.fill(fill)
+  return buf
+}
+
 function createServer(opts){
   var _bodyParser = typeof opts !== 'function'
     ? bodyParser.raw(opts)
diff --git a/test/text.js b/test/text.js
index ae2e00c7..e6de2e32 100644
--- a/test/text.js
+++ b/test/text.js
@@ -88,14 +88,10 @@ describe('bodyParser.text()', function(){
     })
   })
 
-  describe('with limit option', function(){
-    it('should 413 when over limit with Content-Length', function(done){
-      var buf = new Buffer(1028)
-      var server = createServer({ limit: '1kb' })
-
-      buf.fill('.')
-
-      request(server)
+  describe('with limit option', function () {
+    it('should 413 when over limit with Content-Length', function (done) {
+      var buf = allocBuffer(1028, '.')
+      request(createServer({ limit: '1kb' }))
       .post('/')
       .set('Content-Type', 'text/plain')
       .set('Content-Length', '1028')
@@ -103,12 +99,9 @@ describe('bodyParser.text()', function(){
       .expect(413, done)
     })
 
-    it('should 413 when over limit with chunked encoding', function(done){
-      var buf = new Buffer(1028)
+    it('should 413 when over limit with chunked encoding', function (done) {
+      var buf = allocBuffer(1028, '.')
       var server = createServer({ limit: '1kb' })
-
-      buf.fill('.')
-
       var test = request(server).post('/')
       test.set('Content-Type', 'text/plain')
       test.set('Transfer-Encoding', 'chunked')
@@ -116,25 +109,20 @@ describe('bodyParser.text()', function(){
       test.expect(413, done)
     })
 
-    it('should accept number of bytes', function(done){
-      var buf = new Buffer(1028)
-      var server = createServer({ limit: 1024 })
-
-      buf.fill('.')
-
-      request(server)
+    it('should accept number of bytes', function (done) {
+      var buf = allocBuffer(1028, '.')
+      request(createServer({ limit: 1024 }))
       .post('/')
       .set('Content-Type', 'text/plain')
       .send(buf.toString())
       .expect(413, done)
     })
 
-    it('should not change when options altered', function(done){
-      var buf = new Buffer(1028)
+    it('should not change when options altered', function (done) {
+      var buf = allocBuffer(1028, '.')
       var options = { limit: '1kb' }
       var server = createServer(options)
 
-      buf.fill('.')
       options.limit = '100kb'
 
       request(server)
@@ -144,12 +132,8 @@ describe('bodyParser.text()', function(){
       .expect(413, done)
     })
 
-    it('should not hang response', function(done){
-      var buf = new Buffer(1024 * 10)
-      var server = createServer({ limit: '1kb' })
-
-      buf.fill('.')
-
+    it('should not hang response', function (done) {
+      var buf = allocBuffer(10240, '.')
       var server = createServer({ limit: '8kb' })
       var test = request(server).post('/')
       test.set('Content-Type', 'text/plain')
@@ -412,6 +396,16 @@ describe('bodyParser.text()', function(){
   })
 })
 
+function allocBuffer (size, fill) {
+  if (Buffer.alloc) {
+    return Buffer.alloc(size, fill)
+  }
+
+  var buf = new Buffer(size)
+  buf.fill(fill)
+  return buf
+}
+
 function createServer(opts){
   var _bodyParser = typeof opts !== 'function'
     ? bodyParser.text(opts)
diff --git a/test/urlencoded.js b/test/urlencoded.js
index a2ff2b12..250b8f35 100644
--- a/test/urlencoded.js
+++ b/test/urlencoded.js
@@ -235,14 +235,10 @@ describe('bodyParser.urlencoded()', function(){
     })
   })
 
-  describe('with limit option', function(){
-    it('should 413 when over limit with Content-Length', function(done){
-      var buf = new Buffer(1024)
-      var server = createServer({ limit: '1kb' })
-
-      buf.fill('.')
-
-      request(server)
+  describe('with limit option', function () {
+    it('should 413 when over limit with Content-Length', function (done) {
+      var buf = allocBuffer(1024, '.')
+      request(createServer({ limit: '1kb' }))
       .post('/')
       .set('Content-Type', 'application/x-www-form-urlencoded')
       .set('Content-Length', '1028')
@@ -250,12 +246,9 @@ describe('bodyParser.urlencoded()', function(){
       .expect(413, done)
     })
 
-    it('should 413 when over limit with chunked encoding', function(done){
-      var buf = new Buffer(1024)
+    it('should 413 when over limit with chunked encoding', function (done) {
+      var buf = allocBuffer(1024, '.')
       var server = createServer({ limit: '1kb' })
-
-      buf.fill('.')
-
       var test = request(server).post('/')
       test.set('Content-Type', 'application/x-www-form-urlencoded')
       test.set('Transfer-Encoding', 'chunked')
@@ -264,25 +257,20 @@ describe('bodyParser.urlencoded()', function(){
       test.expect(413, done)
     })
 
-    it('should accept number of bytes', function(done){
-      var buf = new Buffer(1024)
-      var server = createServer({ limit: 1024 })
-
-      buf.fill('.')
-
-      request(server)
+    it('should accept number of bytes', function (done) {
+      var buf = allocBuffer(1024, '.')
+      request(createServer({ limit: 1024 }))
       .post('/')
       .set('Content-Type', 'application/x-www-form-urlencoded')
       .send('str=' + buf.toString())
       .expect(413, done)
     })
 
-    it('should not change when options altered', function(done){
-      var buf = new Buffer(1024)
+    it('should not change when options altered', function (done) {
+      var buf = allocBuffer(1024, '.')
       var options = { limit: '1kb' }
       var server = createServer(options)
 
-      buf.fill('.')
       options.limit = '100kb'
 
       request(server)
@@ -292,12 +280,8 @@ describe('bodyParser.urlencoded()', function(){
       .expect(413, done)
     })
 
-    it('should not hang response', function(done){
-      var buf = new Buffer(1024 * 10)
-      var server = createServer({ limit: '1kb' })
-
-      buf.fill('.')
-
+    it('should not hang response', function (done) {
+      var buf = allocBuffer(10240, '.')
       var server = createServer({ limit: '8kb' })
       var test = request(server).post('/')
       test.set('Content-Type', 'application/x-www-form-urlencoded')
@@ -629,6 +613,16 @@ describe('bodyParser.urlencoded()', function(){
   })
 })
 
+function allocBuffer (size, fill) {
+  if (Buffer.alloc) {
+    return Buffer.alloc(size, fill)
+  }
+
+  var buf = new Buffer(size)
+  buf.fill(fill)
+  return buf
+}
+
 function createManyParams(count) {
   var str = ''