Added unit tests for newoptical package.

Change-Id: I23d7b0ec4241ee620dccb605b529d50288242eb8
diff --git a/apps/newoptical/src/test/java/org/onosproject/newoptical/api/OpticalConnectivityIdTest.java b/apps/newoptical/src/test/java/org/onosproject/newoptical/api/OpticalConnectivityIdTest.java
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+++ b/apps/newoptical/src/test/java/org/onosproject/newoptical/api/OpticalConnectivityIdTest.java
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+/*
+ * Copyright 2016 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.
+ */
+
+package org.onosproject.newoptical.api;
+
+import org.junit.Test;
+import com.google.common.testing.EqualsTester;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.onlab.junit.ImmutableClassChecker.assertThatClassIsImmutable;
+
+/**
+ * Test class for OpticalConnectivityId.
+ */
+public class OpticalConnectivityIdTest {
+
+    /**
+     * Checks that OpticalConnectivityId class is immutable.
+     */
+    @Test
+    public void testImmutability() {
+        assertThatClassIsImmutable(OpticalConnectivityId.class);
+    }
+
+    /**
+     * Checks the construction of OpticalConnectivityId object.
+     */
+    @Test
+    public void testConstruction() {
+        OpticalConnectivityId tid = OpticalConnectivityId.of(1L);
+        assertNotNull(tid);
+        assertEquals(tid.id().longValue(), 1L);
+    }
+
+    /**
+     * Checks the equality of OpticalConnectivityId objects.
+     */
+    @Test
+    public void testEquality() {
+        OpticalConnectivityId tid1 = OpticalConnectivityId.of(1L);
+        OpticalConnectivityId tid2 = OpticalConnectivityId.of(1L);
+        OpticalConnectivityId tid3 = OpticalConnectivityId.of(2L);
+
+        new EqualsTester()
+                .addEqualityGroup(tid1, tid2)
+                .addEqualityGroup(tid3)
+                .testEquals();
+    }
+}
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