Category List and Topic View Integration Test

app/assets/javascripts/discourse.js

@@ -22,6 +22,9 @@ Discourse = Ember.Application.createWithMixins({
   // The highest seen post number by topic
   highestSeenByTopic: {},
 
+  // Helps with integration tests
+  URL_FIXTURES: {},
+
   getURL: function(url) {
 
     // If it's a non relative URL, return it.

app/assets/javascripts/discourse/views/topic_view.js

@@ -388,7 +388,10 @@ Discourse.TopicView = Discourse.View.extend(Discourse.Scrolling, {
 
   nonUrgentPositionUpdate: Discourse.debounce(function(opts) {
     Discourse.ScreenTrack.instance().scrolled();
-    this.set('controller.currentPost', opts.currentPost);
+    var model = this.get('controller.model');
+    if (model) {
+      this.set('controller.currentPost', opts.currentPost);
+    }
   },500),
 
   scrolled: function(){