diff --git a/apps/yms/app/src/test/java/org/onosproject/yms/app/ydt/RpcTest.java b/apps/yms/app/src/test/java/org/onosproject/yms/app/ydt/RpcTest.java
new file mode 100644
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--- /dev/null
+++ b/apps/yms/app/src/test/java/org/onosproject/yms/app/ydt/RpcTest.java
@@ -0,0 +1,93 @@
+/*
+ * 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.yms.app.ydt;
+
+import org.junit.Test;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import static org.onosproject.yms.app.ydt.YdtTestUtils.helloOnos;
+import static org.onosproject.yms.app.ydt.YdtTestUtils.validateLeafContents;
+import static org.onosproject.yms.app.ydt.YdtTestUtils.validateNodeContents;
+import static org.onosproject.yms.app.ydt.YdtTestUtils.walkINTree;
+import static org.onosproject.yms.ydt.YdtContextOperationType.MERGE;
+
+public class RpcTest {
+
+    // Logger list is used for walker testing.
+    private final List<String> logger = new ArrayList<>();
+
+    private static final String[] EXPECTED = {
+            "Entry Node is Hello-ONOS.",
+            "Entry Node is Hello_ONOS.",
+            "Entry Node is hello-world.",
+            "Entry Node is input.",
+            "Entry Node is name.",
+            "Exit Node is name.",
+            "Entry Node is surName.",
+            "Exit Node is surName.",
+            "Entry Node is stringList.",
+            "Entry Node is string1.",
+            "Exit Node is string1.",
+            "Entry Node is string2.",
+            "Exit Node is string2.",
+            "Exit Node is stringList.",
+            "Exit Node is input.",
+            "Exit Node is hello-world.",
+            "Exit Node is Hello_ONOS.",
+            "Exit Node is Hello-ONOS."
+    };
+
+    /**
+     * Creates and validates hello onos ydt.
+     */
+    @Test
+    public void rpc1Test() {
+        YangRequestWorkBench ydtBuilder = helloOnos();
+        validateTree(ydtBuilder);
+        // walker test
+        walkINTree(ydtBuilder, EXPECTED);
+    }
+
+    /**
+     * Validates the given built ydt.
+     */
+    private void validateTree(YangRequestWorkBench ydtBuilder) {
+
+        // assign root node to ydtNode for validating purpose.
+        YdtNode ydtNode = (YdtNode) ydtBuilder.getRootNode();
+        // Logical root node does not have operation type
+        validateNodeContents(ydtNode, "Hello-ONOS", null);
+        ydtNode = ydtNode.getFirstChild();
+        validateNodeContents(ydtNode, "Hello_ONOS", MERGE);
+        ydtNode = ydtNode.getFirstChild();
+        validateNodeContents(ydtNode, "hello-world", MERGE);
+        ydtNode = ydtNode.getFirstChild();
+        validateNodeContents(ydtNode, "input", MERGE);
+        ydtNode = ydtNode.getFirstChild();
+        validateLeafContents(ydtNode, "name", "onos");
+        ydtNode = ydtNode.getNextSibling();
+        validateLeafContents(ydtNode, "surName", "yang");
+        ydtNode = ydtNode.getNextSibling();
+        validateNodeContents(ydtNode, "stringList", MERGE);
+        ydtNode = ydtNode.getFirstChild();
+        validateLeafContents(ydtNode, "string1", "ON");
+        ydtNode = ydtNode.getNextSibling();
+        validateLeafContents(ydtNode, "string2", "LAB");
+    }
+}