Update unit tests

red/nodes/Flow.js

@@ -207,12 +207,12 @@ function diffNodeConfigs(oldNode,newNode) {
 var subflowInstanceRE = /^subflow:(.+)$/;
 
 function Flow(config) {
+    
     this.activeNodes = {};
     this.subflowInstanceNodes = {};
 
     this.parseConfig(config);
     
-    
 }
 
 Flow.prototype.parseConfig = function(config) {
@@ -385,6 +385,14 @@ Flow.prototype.getFlow = function() {
     return this.config;
 }
 
+Flow.prototype.eachNode = function(callback) {
+    for (var id in this.activeNodes) {
+        if (this.activeNodes.hasOwnProperty(id)) {
+            callback(this.activeNodes[id]);
+        }
+    }
+}
+
 Flow.prototype.applyConfig = function(config,type) {
     var diff = this.diffFlow(config);
     //console.log(diff);

red/nodes/flows.js

@@ -81,6 +81,10 @@ var flowNodes = module.exports = {
         return activeFlow.getNode(i);
     },
     
+    eachNode: function(cb) {
+        activeFlow.eachNode(cb);
+    },
+    
     /**
      * Stops all active nodes and clears the active set
      * @return a promise for the stopping of all active nodes
@@ -174,7 +178,7 @@ var flowNodes = module.exports = {
             var missingTypes = activeFlow.getMissingTypes();
             if (missingTypes.length > 0) {
                 util.log("[red] Waiting for missing types to be registered:");
-                for (i=0;i<missingTypes.length;i++) {
+                for (var i=0;i<missingTypes.length;i++) {
                     util.log("[red]  - "+missingTypes[i]);
                 }
             }

red/nodes/registry.js

@@ -317,7 +317,11 @@ var registry = (function() {
         },
 
         getNodeConfig: function(id) {
-            var config = moduleConfigs[getModule(id)].nodes[getNode(id)];
+            var config = moduleConfigs[getModule(id)];
+            if (!config) {
+                return null;
+            }
+            config = config.nodes[getNode(id)];
             if (config) {
                 var result = config.config;
                 if (config.script) {