diff --git a/apps/yms/ut/src/test/java/org/onosproject/yms/app/ydt/AugmentSequenceTest.java b/apps/yms/ut/src/test/java/org/onosproject/yms/app/ydt/AugmentSequenceTest.java
new file mode 100644
index 0000000..72d68c1
--- /dev/null
+++ b/apps/yms/ut/src/test/java/org/onosproject/yms/app/ydt/AugmentSequenceTest.java
@@ -0,0 +1,108 @@
+/*
+ * Copyright (c) 2016. Lorem ipsum dolor sit amet, consectetur adipiscing elit.
+ * Morbi non lorem porttitor neque feugiat blandit. Ut vitae ipsum eget quam lacinia accumsan.
+ * Etiam sed turpis ac ipsum condimentum fringilla. Maecenas magna.
+ * Proin dapibus sapien vel ante. Aliquam erat volutpat. Pellentesque sagittis ligula eget metus.
+ * Vestibulum commodo. Ut rhoncus gravida arcu.
+ */
+
+package org.onosproject.yms.app.ydt;
+
+import org.junit.Test;
+
+import static org.onosproject.yms.app.ydt.YdtAppNodeOperationType.OTHER_EDIT;
+import static org.onosproject.yms.app.ydt.YdtTestConstants.AUGNS;
+import static org.onosproject.yms.app.ydt.YdtTestConstants.AUGSE;
+import static org.onosproject.yms.app.ydt.YdtTestUtils.augmentSequenceYdt;
+import static org.onosproject.yms.app.ydt.YdtTestUtils.validateAppLogicalNodeContents;
+import static org.onosproject.yms.app.ydt.YdtTestUtils.validateAppModuleNodeContents;
+import static org.onosproject.yms.app.ydt.YdtTestUtils.validateAppNodeContents;
+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 AugmentSequenceTest {
+
+    private static final String[] EXPECTED = {
+            "Entry Node is augment.",
+            "Entry Node is augmentSequence.",
+            "Entry Node is l1.",
+            "Entry Node is leaf1.",
+            "Exit Node is leaf1.",
+
+            "Entry Node is c1.",
+            "Entry Node is leaf2.",
+            "Exit Node is leaf2.",
+            "Exit Node is c1.",
+
+            "Entry Node is c2.",
+            "Entry Node is leaf2.",
+            "Exit Node is leaf2.",
+            "Exit Node is c2.",
+
+            "Exit Node is l1.",
+            "Exit Node is augmentSequence.",
+            "Exit Node is augment.",
+    };
+
+    /**
+     * Creates and validates sequence of augment in ydt.
+     */
+    @Test
+    public void augmentTest() {
+        YangRequestWorkBench ydtBuilder = augmentSequenceYdt();
+        validateTree(ydtBuilder);
+        validateAppTree(ydtBuilder);
+        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, "augment", null);
+        ydtNode = ydtNode.getFirstChild();
+        validateNodeContents(ydtNode, "augmentSequence", MERGE);
+        ydtNode = ydtNode.getFirstChild();
+        validateNodeContents(ydtNode, "l1", MERGE);
+        ydtNode = ydtNode.getFirstChild();
+
+        validateLeafContents(ydtNode, "leaf1", "1");
+        ydtNode = ydtNode.getNextSibling();
+
+        //Augmenting leaf2
+        validateNodeContents(ydtNode, "c1", MERGE);
+        ydtNode = ydtNode.getFirstChild();
+        validateLeafContents(ydtNode, "leaf2", "2");
+        ydtNode = ydtNode.getParent();
+        ydtNode = ydtNode.getNextSibling();
+
+        //Augmenting leaf3
+        validateNodeContents(ydtNode, "c2", MERGE);
+        ydtNode = ydtNode.getFirstChild();
+        validateLeafContents(ydtNode, "leaf2", "3");
+    }
+
+    /**
+     * Validates the given built ydt application tree.
+     */
+    private void validateAppTree(YangRequestWorkBench ydtBuilder) {
+
+        // Assign root node to ydtNode for validating purpose.
+        YdtAppContext ydtAppContext = ydtBuilder.getAppRootNode();
+        // Logical root node does not have operation type
+        validateAppLogicalNodeContents(ydtAppContext);
+        ydtAppContext = ydtAppContext.getFirstChild();
+        validateAppModuleNodeContents(ydtAppContext, "augmentSequence",
+                                      OTHER_EDIT);
+        ydtAppContext = ydtAppContext.getFirstChild();
+
+        //Inside list checking the first augmented leaf
+        validateAppNodeContents(ydtAppContext, AUGSE, AUGNS, OTHER_EDIT);
+    }
+}