【UT】fix UT

Author: songyumeng

test/leaflet/overlay/DataFlowLayerMapVSpec.js

@@ -9,9 +9,10 @@ describe('leaflet_DataFlowLayerMapV', () => {
   var originalTimeout;
   var testDiv, map;
   var layer, service;
-  var mockServer = new Server(urlDataFlow);
+  var mockServer;
   var originmapv = window.mapv;
   beforeAll(() => {
+    mockServer = new Server(urlDataFlow);
     window.mapv = mapv;
     testDiv = window.document.createElement('div');
     testDiv.setAttribute('id', 'map');
@@ -69,6 +70,7 @@ describe('leaflet_DataFlowLayerMapV', () => {
   afterAll(() => {
     window.mapv = originmapv;
     mockServer.stop();
+    mockServer.close();
     mockServer = null;
     map = null;
     window.document.body.removeChild(testDiv);

test/leaflet/overlay/DataFlowLayerSpec.js

@@ -7,8 +7,9 @@ describe('leaflet_DataFlowLayer', () => {
     var originalTimeout;
     var testDiv, map;
     var layer, service;
-    var mockServer = new Server(urlDataFlow);
+    var mockServer;
     beforeAll(() => {
+        mockServer = new Server(urlDataFlow);
         testDiv = window.document.createElement("div");
         testDiv.setAttribute("id", "map");
         testDiv.style.styleFloat = "left";
@@ -65,6 +66,7 @@ describe('leaflet_DataFlowLayer', () => {
     });
     afterAll(() => {
         mockServer.stop();
+        mockServer.close();
         mockServer=null;
         map = null;
         window.document.body.removeChild(testDiv);