diff --git a/dev/js/spec/statSpec.js b/dev/js/spec/statSpec.js
index fd5243a..2edc972 100644
--- a/dev/js/spec/statSpec.js
+++ b/dev/js/spec/statSpec.js
@@ -5,22 +5,100 @@
  */
 
 
-define(['vc'], function(){
-	
-	
-	describe('KorAP.CorpusStat', function(){
-		
-		var preDefinedStat={
-	  		"documents":12,
-	  		"tokens":2323,
-	  		"sentences":343434,
-	  		"paragraphs":45454545
-		};
+define(['vc', 'vc/statistic'], function(vcClass, statClass){
+	 
+	var json = {
+   	  "@type":"koral:docGroup",
+   	  "operation":"operation:or",
+   	  "operands":[
+   	    {
+   	      "@type":"koral:docGroup",
+   	      "operation":"operation:and",
+   	      "operands":[
+   	        {
+   	          "@type":"koral:doc",
+   	          "key":"title",
+   	          "value":"Der Birnbaum",
+   	          "match":"match:eq"
+   	        },
+   	        {
+   	          "@type":"koral:doc",
+   	          "key":"pubPlace",
+   	          "value":"Mannheim",
+   	          "type" : "type:regex",
+   	          "match":"match:contains"
+   	        },
+   	        {
+   	          "@type":"koral:docGroup",
+   	          "operation":"operation:or",
+   	          "operands":[
+   	            {
+   	              "@type":"koral:doc",
+   	              "key":"subTitle",
+   	              "value":"Aufzucht und Pflege",
+   	              "match":"match:eq"
+   	            },
+   	            {
+   	              "@type":"koral:doc",
+   	              "key":"subTitle",
+   	              "value":"Gedichte",
+   	              "match":"match:eq",
+   	              "rewrites" : [
+   	                {
+   	                  "@type": "koral:rewrite",
+   	                  "src" : "policy",
+   	                  "operation" : "operation:injection",
+   	                }
+   	              ]
+   	            }
+   	          ]
+   	        }
+   	      ]
+   	    },
+   	    {
+   	      "@type":"koral:doc",
+   	      "key":"pubDate",
+   	      "type":"type:date",
+   	      "value":"2015-03-05",
+   	      "match":"match:geq"
+   	    }
+   	  ]
+   	};
 
-		var statClass = require("vc/statistic");		
+	var preDefinedStat={
+  		"documents":12,
+  		"tokens":2323,
+  		"sentences":343434,
+  		"paragraphs":45454545
+	};
+
+  KorAP.API.getCorpStat = function(collQu, cb){
+  	return cb(preDefinedStat);
+  	}; 
+  	
+ 
+  	
+	describe('KorAP.CorpusStat', function(){
+	   
+		var vc = vcClass.create([
+	      ['title', 'string'],
+	      ['subTitle', 'string'],
+	      ['pubDate', 'date'],
+	      ['author', 'text']
+	    ]).fromJson(json);
+
+    vcEl = vc.element();
+    
 		var stat = statClass.create(preDefinedStat);
 		var descL = stat.element();
 		
+		it('statButton should only be added if doc is specified', function(){
+			expect(vcEl.children[1].id).not.toBe(null);	
+			vc2 = vcClass.create().fromJson();
+			expect(vc2.element().children[1]).toBeUndefined();	
+		});
+
+		
 		it('should be initiable', function(){
 			expect(stat._visibleStat).toEqual(false);
 	    expect( function() { statClass.create() }).toThrow(new Error("Missing parameter"));
@@ -37,9 +115,23 @@
 			expect(descL.children[0].children[0].firstChild.nodeValue).toEqual('documents');
 			expect(descL.children[0].children[1].firstChild.nodeValue).toEqual('12');
 			expect(descL.children[0].children[0].attributes[0].value).toEqual('documents');
-			
 		});
 		
-	
+		
+		it('should display corpus statistic and close Button', function(){
+			
+			var testDiv = document.createElement('div');
+			statClass.showCorpStat(testDiv, vc);
+			
+			expect(testDiv.children[0].tagName).toEqual('DIV');
+			expect(testDiv.children[0].getAttribute("class")).toEqual('stattable');   
+			expect(testDiv.children[0].children[0].tagName).toEqual('DL');	
+			expect(testDiv.children[0].children[0].children[0].children[0].firstChild.nodeValue).toEqual('documents');
+			expect(testDiv.children[0].children[0].children[0].children[1].firstChild.nodeValue).toEqual('12');
+			expect(testDiv.children[0].children[1].classList).toContain('action');
+			expect(testDiv.children[0].children[1].children[0].classList).toContain('close');
+		});
+		
 	});
+		
 });
diff --git a/dev/js/src/vc/statistic.js b/dev/js/src/vc/statistic.js
index 402fb25..a5a2f02 100644
--- a/dev/js/src/vc/statistic.js
+++ b/dev/js/src/vc/statistic.js
@@ -125,8 +125,10 @@
 			statisticobj = that.create(statistic);
 			
 			//Removes statistic button when statistic is displayed
-			var divStatButton = document.getElementById('dCorpStat');
-			divStatButton.parentNode.removeChild(divStatButton);
+			if(document.getElementById('dCorpStat') !== null){
+				var divStatButton = document.getElementById('dCorpStat');
+				divStatButton.parentNode.removeChild(divStatButton);
+			}
       
 			statTable.appendChild(statisticobj.element());