diff --git a/web/gui/src/main/webapp/tests/app/fw/util/fn-spec.js b/web/gui/src/main/webapp/tests/app/fw/util/fn-spec.js
new file mode 100644
index 0000000..6cf41a6
--- /dev/null
+++ b/web/gui/src/main/webapp/tests/app/fw/util/fn-spec.js
@@ -0,0 +1,161 @@
+/*
+ * Copyright 2014 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ ONOS GUI -- Util -- General Purpose Functions - Unit Tests
+
+ @author Simon Hunt
+ */
+describe('factory: fw/lib/fn.js', function() {
+    var fs,
+        someFunction = function () {},
+        someArray = [1, 2, 3],
+        someObject = { foo: 'bar'},
+        someNumber = 42,
+        someString = 'xyyzy',
+        someDate = new Date(),
+        stringArray = ['foo', 'bar'];
+
+    beforeEach(module('onosUtil'));
+
+    beforeEach(inject(function (FnService) {
+        fs = FnService;
+    }));
+
+
+    // === Tests for isF()
+    it('isF(): null for undefined', function () {
+        expect(fs.isF(undefined)).toBeNull();
+    });
+    it('isF(): null for null', function () {
+        expect(fs.isF(null)).toBeNull();
+    });
+    it('isF(): the reference for function', function () {
+        expect(fs.isF(someFunction)).toBe(someFunction);
+    });
+    it('isF(): null for string', function () {
+        expect(fs.isF(someString)).toBeNull();
+    });
+    it('isF(): null for number', function () {
+        expect(fs.isF(someNumber)).toBeNull();
+    });
+    it('isF(): null for Date', function () {
+        expect(fs.isF(someDate)).toBeNull();
+    });
+    it('isF(): null for array', function () {
+        expect(fs.isF(someArray)).toBeNull();
+    });
+    it('isF(): null for object', function () {
+        expect(fs.isF(someObject)).toBeNull();
+    });
+
+
+    // === Tests for isA()
+    it('isA(): null for undefined', function () {
+        expect(fs.isA(undefined)).toBeNull();
+    });
+    it('isA(): null for null', function () {
+        expect(fs.isA(null)).toBeNull();
+    });
+    it('isA(): null for function', function () {
+        expect(fs.isA(someFunction)).toBeNull();
+    });
+    it('isA(): null for string', function () {
+        expect(fs.isA(someString)).toBeNull();
+    });
+    it('isA(): null for number', function () {
+        expect(fs.isA(someNumber)).toBeNull();
+    });
+    it('isA(): null for Date', function () {
+        expect(fs.isA(someDate)).toBeNull();
+    });
+    it('isA(): the reference for array', function () {
+        expect(fs.isA(someArray)).toBe(someArray);
+    });
+    it('isA(): null for object', function () {
+        expect(fs.isA(someObject)).toBeNull();
+    });
+
+
+    // === Tests for isS()
+    it('isS(): null for undefined', function () {
+        expect(fs.isS(undefined)).toBeNull();
+    });
+    it('isS(): null for null', function () {
+        expect(fs.isS(null)).toBeNull();
+    });
+    it('isS(): null for function', function () {
+        expect(fs.isS(someFunction)).toBeNull();
+    });
+    it('isS(): the reference for string', function () {
+        expect(fs.isS(someString)).toBe(someString);
+    });
+    it('isS(): null for number', function () {
+        expect(fs.isS(someNumber)).toBeNull();
+    });
+    it('isS(): null for Date', function () {
+        expect(fs.isS(someDate)).toBeNull();
+    });
+    it('isS(): null for array', function () {
+        expect(fs.isS(someArray)).toBeNull();
+    });
+    it('isS(): null for object', function () {
+        expect(fs.isS(someObject)).toBeNull();
+    });
+
+
+    // === Tests for isO()
+    it('isO(): null for undefined', function () {
+        expect(fs.isO(undefined)).toBeNull();
+    });
+    it('isO(): null for null', function () {
+        expect(fs.isO(null)).toBeNull();
+    });
+    it('isO(): null for function', function () {
+        expect(fs.isO(someFunction)).toBeNull();
+    });
+    it('isO(): null for string', function () {
+        expect(fs.isO(someString)).toBeNull();
+    });
+    it('isO(): null for number', function () {
+        expect(fs.isO(someNumber)).toBeNull();
+    });
+    it('isO(): null for Date', function () {
+        expect(fs.isO(someDate)).toBeNull();
+    });
+    it('isO(): null for array', function () {
+        expect(fs.isO(someArray)).toBeNull();
+    });
+    it('isO(): the reference for object', function () {
+        expect(fs.isO(someObject)).toBe(someObject);
+    });
+
+    // === Tests for contains()
+    it('contains(): false for improper args', function () {
+        expect(fs.contains()).toBeFalsy();
+    });
+    it('contains(): false for non-array', function () {
+        expect(fs.contains(null, 1)).toBeFalsy();
+    });
+    it('contains(): true for contained item', function () {
+        expect(fs.contains(someArray, 1)).toBeTruthy();
+        expect(fs.contains(stringArray, 'bar')).toBeTruthy();
+    });
+    it('contains(): false for non-contained item', function () {
+        expect(fs.contains(someArray, 109)).toBeFalsy();
+        expect(fs.contains(stringArray, 'zonko')).toBeFalsy();
+    });
+});