diff --git a/test/test-helper.js b/test/test-helper.js
index e7b995e4..355c0cad 100644
--- a/test/test-helper.js
+++ b/test/test-helper.js
@@ -34,3 +34,53 @@ stringToHex = function(string) {
 hexToString = function(hexArray) {
   return new Buffer(hexArray).toString('utf8');
 }
+var BufferList = function() {
+  this.buffers = [];
+};
+
+BufferList.prototype.add = function(buffer, front) {
+  this.buffers[front ? "unshift" : "push"](buffer);
+  return this;
+};
+
+BufferList.prototype.addInt16 = function(val, front) {
+  return this.add(Buffer([(val >>> 8),(val >>> 0)]),front);
+};
+
+BufferList.prototype.getByteLength = function(initial) {
+  return this.buffers.reduce(function(previous, current){
+    return previous + current.length;
+  },initial || 0);
+};
+
+BufferList.prototype.addInt32 = function(val, first) {
+  return this.add(Buffer([
+    (val >>> 24),
+    (val >>> 16),
+    (val >>> 8),
+    (val >>> 0)
+  ]),first);
+};
+
+BufferList.prototype.addCString = function(val) {
+  return this.add(Buffer(val + '\0','utf8'));
+};
+
+BufferList.prototype.join = function(appendLength, char) {
+  var length = this.getByteLength();
+  if(appendLength) {
+    this.addInt32(length+4, true);
+    return this.join(false, char);
+  }
+  if(char) {
+    this.buffers.unshift(Buffer(char,'utf8'));
+    length++;
+  }
+  var result = Buffer(length);
+  var index = 0;
+  this.buffers.forEach(function(buffer) {
+    buffer.copy(result, index, 0);
+    index += buffer.length;
+  });
+  return result;
+};
diff --git a/test/writer-tests.js b/test/writer-tests.js
index ff9ba34b..93312fda 100644
--- a/test/writer-tests.js
+++ b/test/writer-tests.js
@@ -1,55 +1,5 @@
 require(__dirname + "/test-helper");
 
-var BufferList = function() {
-  this.buffers = [];
-};
-
-BufferList.prototype.add = function(buffer, front) {
-  this.buffers[front ? "unshift" : "push"](buffer);
-  return this;
-};
-
-BufferList.prototype.addInt16 = function(val, front) {
-  return this.add(Buffer([(val >>> 8),(val >>> 0)]),front);
-};
-
-BufferList.prototype.getByteLength = function(initial) {
-  return this.buffers.reduce(function(previous, current){
-    return previous + current.length;
-  },initial || 0);
-};
-
-BufferList.prototype.addInt32 = function(val, first) {
-  return this.add(Buffer([
-    (val >>> 24),
-    (val >>> 16),
-    (val >>> 8),
-    (val >>> 0)
-  ]),first);
-};
-
-BufferList.prototype.addCString = function(val) {
-  return this.add(Buffer(val + '\0','utf8'));
-};
-
-BufferList.prototype.join = function(appendLength, char) {
-  var length = this.getByteLength();
-  if(appendLength) {
-    this.addInt32(length+4, true);
-    return this.join(false, char);
-  }
-  if(char) {
-    this.buffers.unshift(Buffer(char,'utf8'));
-    length++;
-  }
-  var result = Buffer(length);
-  var index = 0;
-  this.buffers.forEach(function(buffer) {
-    buffer.copy(result, index, 0);
-    index += buffer.length;
-  });
-  return result;
-};
 
 assert.equalBuffers = function(actual, expected) {
   if(actual.length != expected.length) {