diff --git a/drivers/fujitsu/src/main/java/org/onosproject/drivers/fujitsu/FujitsuVoltNeConfig.java b/drivers/fujitsu/src/main/java/org/onosproject/drivers/fujitsu/FujitsuVoltNeConfig.java
index 2560488..fe1569b 100644
--- a/drivers/fujitsu/src/main/java/org/onosproject/drivers/fujitsu/FujitsuVoltNeConfig.java
+++ b/drivers/fujitsu/src/main/java/org/onosproject/drivers/fujitsu/FujitsuVoltNeConfig.java
@@ -53,20 +53,22 @@
             log.warn("Not master for {} Use {} to execute command",
                      ncDeviceId,
                      mastershipService.getMasterFor(ncDeviceId));
-            return reply;
+            return null;
         }
 
         try {
             StringBuilder request = new StringBuilder();
-            request.append(VOLT_NE_OPEN).append(VOLT_NE_NAMESPACE);
-            request.append(ANGLE_RIGHT).append(NEW_LINE);
+            request.append(VOLT_NE_OPEN + VOLT_NE_NAMESPACE);
+            request.append(ANGLE_RIGHT + NEW_LINE);
             request.append(VOLT_NE_CLOSE);
 
-            reply = controller.
-                    getDevicesMap().get(ncDeviceId).getSession().
-                    get(request.toString(), REPORT_ALL);
+            reply = controller
+                    .getDevicesMap()
+                    .get(ncDeviceId)
+                    .getSession()
+                    .get(request.toString(), REPORT_ALL);
         } catch (IOException e) {
-            log.error("Cannot communicate to device {} exception ", ncDeviceId, e);
+            log.error("Cannot communicate to device {} exception {}", ncDeviceId, e);
         }
         return reply;
     }
diff --git a/drivers/fujitsu/src/test/java/org/onosproject/drivers/fujitsu/FujitsuVoltNeConfigTest.java b/drivers/fujitsu/src/test/java/org/onosproject/drivers/fujitsu/FujitsuVoltNeConfigTest.java
new file mode 100644
index 0000000..79f0042
--- /dev/null
+++ b/drivers/fujitsu/src/test/java/org/onosproject/drivers/fujitsu/FujitsuVoltNeConfigTest.java
@@ -0,0 +1,122 @@
+/*
+ * Copyright 2016-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.drivers.fujitsu;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.assertNotNull;
+import static org.onosproject.drivers.fujitsu.FujitsuVoltXmlUtilityMock.*;
+
+/**
+ * Unit tests for methods of FujitsuVoltNeConfig.
+ */
+public class FujitsuVoltNeConfigTest {
+
+    private FujitsuNetconfControllerMock controller;
+    private FujitsuDriverHandlerAdapter driverHandler;
+    private FujitsuVoltNeConfig voltConfig;
+
+    private final FujitsuNetconfSessionListenerTest listener = new InternalSessionListener();
+
+    @Before
+    public void setUp() throws Exception {
+        controller = new FujitsuNetconfControllerMock();
+        driverHandler = controller.setUp(listener);
+        voltConfig = new FujitsuVoltNeConfig();
+        voltConfig.setHandler(driverHandler);
+    }
+
+    /**
+     * Run to verify handling of valid input for get operation.
+     */
+    @Test
+    public void testGetAll() throws Exception {
+        String reply = voltConfig.getAll();
+        assertNotNull("Incorrect response", reply);
+    }
+
+    /**
+     * Verifies XML request string by comparing with generated string.
+     *
+     * @param request XML string for set operation
+     * @return true if XML string matches with generated
+     */
+    private boolean verifyGetRequest(String request) {
+        StringBuilder rpc = new StringBuilder();
+
+        rpc.append(TEST_VOLT_NE_OPEN + TEST_VOLT_NE_NAMESPACE);
+        rpc.append(TEST_ANGLE_RIGHT + TEST_NEW_LINE);
+        rpc.append(TEST_VOLT_NE_CLOSE);
+
+        String testRequest = rpc.toString();
+        String regex = TEST_WHITESPACES_REGEX;
+        int index = rpc.indexOf(regex);
+        while (index >= ZERO) {
+            testRequest = rpc.replace(index, index + regex.length(), TEST_EMPTY_STRING).toString();
+            request = request.replaceAll(regex, TEST_EMPTY_STRING);
+        }
+        boolean result = request.equals(testRequest);
+        assertTrue("Does not match with generated string", result);
+        return result;
+    }
+
+    /**
+     * Internal listener for device service events.
+     */
+    private class InternalSessionListener implements FujitsuNetconfSessionListenerTest {
+        @Override
+        public boolean verifyEditConfig(String request) {
+            return false;
+        }
+
+        @Override
+        public boolean verifyEditConfig(String target, String mode, String request) {
+            return false;
+        }
+
+        @Override
+        public boolean verifyGet(String filterSchema, String withDefaultsMode) {
+            assertTrue("Incorrect withDefaultsMode",
+                    withDefaultsMode.equals(TEST_REPORT_ALL));
+
+            filterSchema = filterSchema.replaceAll(TEST_DUPLICATE_SPACES_REGEX, TEST_SPACE);
+            assertTrue("Does not contain:" + TEST_VOLT_NAMESPACE,
+                    filterSchema.contains(TEST_VOLT_NAMESPACE));
+
+            boolean result = verifyGetRequest(filterSchema);
+            assertTrue("XML verification failure", result);
+            return true;
+        }
+
+        @Override
+        public String buildGetReply() {
+            return null;
+        }
+
+        @Override
+        public boolean verifyWrappedRpc(String request) {
+            return false;
+        }
+
+        @Override
+        public void verifyStartSubscription(String filterSchema) {
+        }
+    }
+
+}