diff --git a/test/messages/util.js b/test/messages/util.js
new file mode 100644
index 0000000..ce745d8
--- /dev/null
+++ b/test/messages/util.js
@@ -0,0 +1,33 @@
+'use strict';
+
+/* jshint unused: false */
+
+var should = require('chai').should();
+var utils = require('../../lib/messages/utils');
+var bitcore = require('bitcore');
+var BufferReader = bitcore.encoding.BufferReader;
+
+describe('Message Utils', function() {
+
+  describe('checkFinished', function() {
+    it('should throw an error if buffer reader is not finished', function() {
+      /*jshint immed: false */
+      var buffer = new Buffer(Array(32));
+      var br = new BufferReader(buffer);
+      (function() {
+        utils.checkFinished(br);
+      }).should.throw('Data still available after parsing');
+    });
+  });
+
+  describe('sanitizeStartStop', function() {
+    it('should throw an error if starts is invalid length', function() {
+      /*jshint immed: false */
+      var stop = '000000000000000013413cf2536b491bf0988f52e90c476ffeb701c8bfdb1db9';
+      (function() {
+        utils.sanitizeStartStop({starts: ['0000'], stop: stop});
+      }).should.throw('Invalid hash');
+    });
+  });
+
+});