diff --git a/test/utils.js b/test/utils.js
new file mode 100644
index 0000000..a309281
--- /dev/null
+++ b/test/utils.js
@@ -0,0 +1,51 @@
+'use strict';
+
+var _ = require('lodash');
+var chai = require('chai');
+var sinon = require('sinon');
+var should = chai.should();
+var Utils = require('../lib/utils');
+
+describe('Utils', function() {
+  describe('#checkRequired', function() {
+    it('should check required fields', function() {
+      var obj = {
+        id: 'id',
+        name: 'name',
+        array: ['a', 'b'],
+      };
+      var fixtures = [{
+        args: 'id',
+        check: true
+      }, {
+        args: ['id'],
+        check: true
+      }, {
+        args: ['id, name'],
+        check: false
+      }, {
+        args: ['id', 'name'],
+        check: true
+      }, {
+        args: 'array',
+        check: true
+      }, {
+        args: 'dummy',
+        check: false
+      }, {
+        args: ['dummy1', 'dummy2'],
+        check: false
+      }, {
+        args: ['id', 'dummy'],
+        check: false
+      }, ];
+      _.each(fixtures, function(f) {
+        Utils.checkRequired(obj, f.args).should.equal(f.check);
+      });
+    });
+    it('should fail to check required fields on non-object', function() {
+      var obj = 'dummy';
+      Utils.checkRequired(obj, 'name').should.be.false;
+    });
+  });
+});