Add spy on getComputedStyle()

lib/tools/jsExecutionTransformer.js

@@ -6,6 +6,14 @@ var jsExecutionTransformer = function() {
 
     this.transform = function(data) {
         var javascriptExecutionTree = {};
+        
+        var metrics = {
+            domManipulations: 0,
+            queriesWithoutResults: 0,
+            jQueryCalls: 0,
+            jQueryCallsOnEmptyObject: 0
+            
+        };
 
         debug('Starting JS execution transformation');
 
@@ -56,7 +64,7 @@ var jsExecutionTransformer = function() {
                             node.data.callDetails.context.elements = node.data.callDetails.context.elements.map(offendersHelpers.domPathToDomElementObj, offendersHelpers);
                         }
 
-                        if (node.data.type === 'appendChild' || node.data.type === 'insertBefore') {
+                        if (node.data.type === 'appendChild' || node.data.type === 'insertBefore' || node.data.type === 'getComputedStyle') {
                             node.data.callDetails.arguments[0] = offendersHelpers.domPathToDomElementObj(node.data.callDetails.arguments[0]);
                         }
 
@@ -73,7 +81,12 @@ var jsExecutionTransformer = function() {
             throw err;
         }
 
-        return javascriptExecutionTree;
+        data.javascriptExecutionTree = javascriptExecutionTree;
+        data.toolsResults.jsExecutionTransformer = {
+            metrics: metrics
+        };
+
+        return data;
     };
 
     function treeRecursiveParser(node, fn) {