diff --git a/js/testing/test-throughput-ws.html b/js/testing/test-throughput-ws.html
new file mode 100644
index 0000000..6544798
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+++ b/js/testing/test-throughput-ws.html
@@ -0,0 +1,215 @@
+<?xml version = "1.0" encoding="utf-8" ?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
+"DTD/xhtml1-strict.dtd">
+<html xmlns = "http://www.w3.org/1999/xhtml">
+<meta charset="UTF-8">
+
+<head>
+	<title>NDN Get File via WebSocket</title>
+	
+	<script type="text/javascript" src="../tools/build/ndn-js.js"></script>
+
+	<script type="text/javascript">
+		hostip = "131.179.196.232";
+		//hostip = "localhost";
+		var ndncon = new NDN({port:9696,host:hostip});
+        ndncon.transport.connectWebSocket(ndncon);
+        
+///////////////////////////////////////////////////////////////////////////////////////////////////////////
+        /*
+		 * Closure for calling expressInterest to fetch big file.
+		 */                                                
+		var ContentClosure = function ContentClosure(ndn, T0) {
+		    // Inherit from Closure.
+		    Closure.call(this);
+		    
+		    this.T0 = T0;
+		    this.ndn = ndn;
+			this.totalBlocks = 0;
+		    
+		    this.firstReceivedSegmentNumber = null;
+		    this.firstReceivedContentObject = null;
+		}
+		
+		ContentClosure.prototype.upcall = function(kind, upcallInfo) {
+		    if (kind == Closure.UPCALL_INTEREST_TIMED_OUT) {
+		    	var T1 = new Date();
+		    	document.getElementById('content').innerHTML += "<p>Interest time out.</p>";
+		        document.getElementById('content').innerHTML += "<p>Time elapsed: " + (T1 - this.T0) + " ms including 4s timeout</p>";
+		        document.getElementById('content').innerHTML += "<p>Total number of blocks: " + this.totalBlocks + "</p>";
+		        return Closure.RESULT_OK;
+		    }
+		    
+		    if (!(kind == Closure.UPCALL_CONTENT ||
+		          kind == Closure.UPCALL_CONTENT_UNVERIFIED))
+		        // The upcall is not for us.
+		        return Closure.RESULT_ERR;
+		        
+		    var contentObject = upcallInfo.contentObject;
+		    if (contentObject.content == null) {
+		        console.log("NdnProtocol.ContentClosure: contentObject.content is null\n");
+		        return Closure.RESULT_ERR;
+		    }
+		
+		    // Use the segmentNumber to load multiple segments.
+		    //var segmentNumber = ArrayToNum(contentObject.name.components[contentObject.name.components.length - 1]);
+		    var segmentNumber = DataUtils.bigEndianToUnsignedInt
+		    						(contentObject.name.components[contentObject.name.components.length - 1]);
+		    //console.log(segmentNumber);
+		    
+	        if (this.firstReceivedSegmentNumber == null) {
+	            // This is the first call.
+	            this.firstReceivedSegmentNumber = segmentNumber;
+	            if (segmentNumber != 0) {
+	                // Special case: Save this content object for later and request segment zero.
+	                this.firstReceivedContentObject = contentObject;
+	                var componentsForZero = contentObject.name.components.slice
+	                    (0, contentObject.name.components.length - 1);
+	                componentsForZero.push([0]);
+	                this.ndn.expressInterest(new Name(componentsForZero), this);
+	                return Closure.RESULT_OK;
+	            }
+	        }
+		    
+		    // Process received data here...
+		    // Count content length
+		    //nameStr = escape(contentObject.name.getName());
+			//document.getElementById('content').innerHTML += "<p>Name string: " + nameStr + "</p>";
+			//document.getElementById('content').innerHTML += "<p>Content buffer length: " + contentObject.content.length + "</p>";
+			this.totalBlocks++;
+		    
+		    // Check for the special case if the saved content is for the next segment that we need.
+		    if (this.firstReceivedContentObject != null && 
+		        this.firstReceivedSegmentNumber == segmentNumber + 1) {
+		        // Substitute the saved contentObject send its content and keep going.
+		        contentObject = this.firstReceivedContentObject;
+		        segmentNumber = segmentNumber + 1;
+		        // Clear firstReceivedContentObject to save memory.
+		        this.firstReceivedContentObject = null;
+		        
+		        // Process received data here...
+		    	// Count content length
+		    	//nameStr = escape(contentObject.name.getName());
+				//document.getElementById('content').innerHTML += "<p>Name string: " + nameStr + "</p>";
+				//document.getElementById('content').innerHTML += "<p>Content buffer length: " + contentObject.content.length + "</p>";
+				this.totalBlocks++;
+		    }
+		
+		    var finalSegmentNumber = null;
+		    if (contentObject.signedInfo != null && contentObject.signedInfo.finalBlockID != null)
+		        //finalSegmentNumber = ArrayToNum(contentObject.signedInfo.finalBlockID);
+		        finalSegmentNumber = DataUtils.bigEndianToUnsignedInt(contentObject.signedInfo.finalBlockID);
+		    
+		    if (finalSegmentNumber == null || segmentNumber != finalSegmentNumber) {
+		        // Make a name for the next segment and get it.
+		        //var segmentNumberPlus1 = NumToArray(segmentNumber + 1);
+		        // Make a name for the next segment and get it.
+		        var segmentNumberPlus1 = DataUtils.nonNegativeIntToBigEndian(segmentNumber + 1);
+		        // Put a 0 byte in front.
+		        var nextSegmentNumber = new Uint8Array(segmentNumberPlus1.length + 1);
+		        nextSegmentNumber.set(segmentNumberPlus1, 1);
+        		
+		        var components = contentObject.name.components.slice
+		            (0, contentObject.name.components.length - 1);
+		        components.push(nextSegmentNumber);
+		        //components.push(segmentNumberPlus1);
+		        this.ndn.expressInterest(new Name(components), this);
+		    }
+		    else {
+		        // Final block received.
+		        // Record stop time
+		        var T1 = new Date();
+		        document.getElementById('content').innerHTML += "<p>Final block received.</p>";
+		        document.getElementById('content').innerHTML += "<p>Time elapsed: " + (T1 - this.T0) + " ms</p>";
+		        document.getElementById('content').innerHTML += "<p>Total number of blocks: " + this.totalBlocks + "</p>";
+		    }
+		        
+		    return Closure.RESULT_OK;
+		};
+		
+		/*
+		 * Convert the big endian Uint8Array to an unsigned int.
+		 * Don't check for overflow.
+		 */
+		function ArrayToNum(bytes) {
+		    var result = 0;
+		    for (var i = 0; i < bytes.length; ++i) {
+		        result = result * 10;
+		        result += (bytes[i] - 48);
+		    }
+		    return result;
+		};
+		
+		/*
+		 * Convert the int value to a new big endian Uint8Array and return.
+		 * If value is 0 or negative, return Uint8Array(0). 
+		 */
+		function NumToArray(value) {
+		    value = Math.round(value);
+		    if (value <= 0)
+		        return new Uint8Array(0);
+		    
+		    numString = value.toString();
+		    var size = numString.length;
+		    var result = new Uint8Array(size);
+		    for (i = 0; i < size; i++) {
+		    	result[i] = numString.charCodeAt(i);
+		    }
+		    return result;
+		};
+///////////////////////////////////////////////////////////////////////////////////////////////////////////
+        
+        /*
+        var AsyncGetClosure = function AsyncGetClosure(T0) {
+        	this.T0 = T0;  // Start time
+        	// Inherit from Closure.
+			Closure.call(this);
+		};
+		
+		AsyncGetClosure.prototype.upcall = function(kind, upcallInfo) {
+			//console.log("Closure.upcall() executed.");
+			if (kind == Closure.UPCALL_FINAL) {
+				// Do nothing.
+			} else if (kind == Closure.UPCALL_CONTENT) {
+				var T1 = new Date();
+				
+				var content = upcallInfo.contentObject;
+				nameStr = escape(content.name.getName());
+				document.getElementById('content').innerHTML += "<p>Time elapsed: " + (T1 - this.T0) + " ms</p>"; 
+				document.getElementById('content').innerHTML += "<p>Name string: " + nameStr + "</p>";
+				document.getElementById('content').innerHTML += "<p>Content buffer length: " + content.content.length + "</p>";
+				//console.log("In callback, nameStr: " + nameStr);
+				//console.log("In callback, content: ");
+				//console.log(content.content.length);
+				//document.getElementById('content').innerHTML += contentObjectToHtml(content);
+			} else if (kind == Closure.UPCALL_INTEREST_TIMED_OUT) {
+				console.log("Closure.upcall called with interest time out.");
+			}
+			return Closure.RESULT_OK;
+		};
+		*/
+		
+		function run() {
+			document.getElementById('content').innerHTML += "<p>Started...</p>";
+			//ndn.expressInterest(new Name(document.getElementById('interest').value), new AsyncGetClosure( new Date() ));
+			var name = new Name(document.getElementById('interest').value);
+            ndncon.expressInterest( name, 
+                    new ContentClosure( ndncon, new Date() ));
+		}
+		
+	</script>
+	
+</head>
+<body >
+
+	<form>
+		Please Enter an Interest:<br />
+		<input id="interest" type="text" name="INTEREST" size="50" value="/wentao.shang/choir_jail.png" /> 
+	</form>
+
+	<button onclick="run()">Fetch Content</button>
+	
+	<p id="content">Result: <br/></p>
+
+</body>
+</html>