[ONOS-5907] Implementing unit test on Security-Mode ONOS

Change-Id: I1bd8e1df60ad3e5115f0a46ff9f621ec8fd82c36
diff --git a/core/api/src/test/java/org/onosproject/security/SecurityUtilTest.java b/core/api/src/test/java/org/onosproject/security/SecurityUtilTest.java
new file mode 100755
index 0000000..882e95b
--- /dev/null
+++ b/core/api/src/test/java/org/onosproject/security/SecurityUtilTest.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2017-present 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.security;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.onosproject.core.DefaultApplicationId;
+
+/**
+ * Test of SecurityUtil.
+ */
+public class SecurityUtilTest {
+
+    private static SecurityAdminServiceAdapter service = new SecurityAdminServiceAdapter();
+    private DefaultApplicationId appId;
+
+    @Before
+    public void setUp() throws Exception {
+        appId = new DefaultApplicationId(1, "test");
+    }
+
+    @Test
+    public void testIsSecurityModeEnabled() {
+        assertNull(System.getSecurityManager());
+        assertNotNull(service);
+    }
+
+    @Test
+    public void testGetSecurityService() {
+        assertNull(System.getSecurityManager());
+        assertNotNull(service);
+    }
+
+    @Test
+    public void testIsAppSecured() {
+        assertFalse(service.isSecured(appId));
+    }
+
+    @Test
+    public void testRegister() {
+        service.register(appId);
+    }
+
+}