Add a set of unit tests for openstack telemetry app

Change-Id: Ib5963c61ef0c0302a90a4f30d3dd1f0ec2862aea
diff --git a/apps/openstacktelemetry/app/src/test/java/org/onosproject/openstacktelemetry/codec/FlowInfoJsonCodecTest.java b/apps/openstacktelemetry/app/src/test/java/org/onosproject/openstacktelemetry/codec/FlowInfoJsonCodecTest.java
index 24fe947..ca97f8d 100644
--- a/apps/openstacktelemetry/app/src/test/java/org/onosproject/openstacktelemetry/codec/FlowInfoJsonCodecTest.java
+++ b/apps/openstacktelemetry/app/src/test/java/org/onosproject/openstacktelemetry/codec/FlowInfoJsonCodecTest.java
@@ -76,7 +76,9 @@
     private static final int INTEGER_VALUE = 1;
     private static final short SHORT_VALUE = (short) 1;
 
-
+    /**
+     * Initial setup for this unit test.
+     */
     @Before
     public void setUp() {
         context = new MockCodecContext();
diff --git a/apps/openstacktelemetry/app/src/test/java/org/onosproject/openstacktelemetry/codec/TinaFlowInfoByteBufferCodecTest.java b/apps/openstacktelemetry/app/src/test/java/org/onosproject/openstacktelemetry/codec/TinaFlowInfoByteBufferCodecTest.java
index 9e3294d..8f4af77 100644
--- a/apps/openstacktelemetry/app/src/test/java/org/onosproject/openstacktelemetry/codec/TinaFlowInfoByteBufferCodecTest.java
+++ b/apps/openstacktelemetry/app/src/test/java/org/onosproject/openstacktelemetry/codec/TinaFlowInfoByteBufferCodecTest.java
@@ -55,6 +55,9 @@
     private final TinaFlowInfoByteBufferCodec codec =
             new TinaFlowInfoByteBufferCodec();
 
+    /**
+     * Initial setup for this unit test.
+     */
     @Before
     public void setup() {
         StatsInfo statsInfo = new DefaultStatsInfo.DefaultBuilder().build();
diff --git a/apps/openstacktelemetry/app/src/test/java/org/onosproject/openstacktelemetry/codec/TinaStatsInfoByteBufferCodecTest.java b/apps/openstacktelemetry/app/src/test/java/org/onosproject/openstacktelemetry/codec/TinaStatsInfoByteBufferCodecTest.java
index f23f728..f32e5bb 100644
--- a/apps/openstacktelemetry/app/src/test/java/org/onosproject/openstacktelemetry/codec/TinaStatsInfoByteBufferCodecTest.java
+++ b/apps/openstacktelemetry/app/src/test/java/org/onosproject/openstacktelemetry/codec/TinaStatsInfoByteBufferCodecTest.java
@@ -42,6 +42,9 @@
     private final TinaStatsInfoByteBufferCodec codec =
                                             new TinaStatsInfoByteBufferCodec();
 
+    /**
+     * Initial setup for this unit test.
+     */
     @Before
     public void setup() {
         StatsInfo.Builder builder = new DefaultStatsInfo.DefaultBuilder();
@@ -59,6 +62,9 @@
                 .build();
     }
 
+    /**
+     * Tests codec encode and decode.
+     */
     @Test
     public void testEncodeDecode() {
         ByteBuffer buffer = codec.encode(info);