ServerConnector getOverlayElements wrong url fixed

and unit test added

frontend-js/src/main/js/ServerConnector.js

@@ -857,7 +857,7 @@ ServerConnector.getOverlayByIdUrl = function(overlayId, projectId, token) {
 
 ServerConnector.getOverlayElementsUrl = function(overlayId, projectId, token) {
   return this.getApiUrl({type:"overlay",
-    method: "getOverlayElementsUrl",
+    method: "getOverlayElements",
     params: {
       projectId: projectId,
       token: token,
@@ -1006,7 +1006,7 @@ ServerConnector.getOverlays = function(projectId) {
 ServerConnector.getOverlayElements = function(layoutId, projectId) {
   var self = this;
   if (layoutId === undefined) {
-    throw "Layout id must be defined";
+    throw new Error("Layout id must be defined");
   }
   return new Promise(function(resolve, reject) {
     self.getToken().then(function(token) {

frontend-js/src/main/js/map/data/LayoutAlias.js

@@ -12,6 +12,7 @@ function LayoutAlias(javaObject) {
   this.setId(javaObject.idObject);
   this.setValue(javaObject.value);
   this.setColor(javaObject.color);
+  this.setModelId(javaObject.modelId);
   if (javaObject.type === undefined) {
     this.setType(LayoutAlias.LIGTH);
   } else if (javaObject.type === LayoutAlias.GENETIC_VARIANT) {
@@ -42,6 +43,14 @@ LayoutAlias.prototype.setId = function(id) {
   this.id = parseInt(id);
 };
 
+LayoutAlias.prototype.getModelId = function() {
+  return this._modelId;
+};
+
+LayoutAlias.prototype.setModelId = function(modelId) {
+  this._modelId = parseInt(modelId);
+};
+
 LayoutAlias.prototype.getValue = function() {
   return this.value;
 };

frontend-js/src/test/js/ServerConnector-test.js

@@ -3,6 +3,7 @@
 require("./mocha-config.js");
 
 var Alias = require('../../main/js/map/data/Alias');
+var LayoutAlias = require('../../main/js/map/data/LayoutAlias');
 var Project = require('../../main/js/map/data/Project');
 var Reaction = require('../../main/js/map/data/Reaction');
 var ServerConnector = require('../../main/js/ServerConnector');
@@ -49,5 +50,16 @@ describe('ServerConnector', function() {
       assert.equal(reaction.getModelId(), 15781);
     });
   });
+  
+  it('getOverlayElements', function() {
+    return ServerConnector.getOverlayElements(101).then(function(result) {
+      assert.equal(result.length, 1);
+      var layoutAlias = result[0];
+      assert.ok(layoutAlias instanceof LayoutAlias);
+      assert.equal(1.0, layoutAlias.getValue());
+      assert.equal(15781, layoutAlias.getModelId());
+      assert.equal(329173, layoutAlias.getId());
+    });
+  });
 
 });

frontend-js/testFiles/apiCalls/overlay/getOverlayElements/overlayId=101&projectId=sample&token=MOCK_TOKEN_ID&

+[{"type":"ALIAS","overlayContent":{"value":1.0,"modelId":15781,"idObject":"329173"}}]
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