diff --git a/app/assets/javascripts/discourse/controllers/merge_topic_controller.js b/app/assets/javascripts/discourse/controllers/merge_topic_controller.js
index 9d79f00c3..672654877 100644
--- a/app/assets/javascripts/discourse/controllers/merge_topic_controller.js
+++ b/app/assets/javascripts/discourse/controllers/merge_topic_controller.js
@@ -12,6 +12,7 @@ Discourse.MergeTopicController = Discourse.ObjectController.extend(Discourse.Sel
 
   topicController: Em.computed.alias('controllers.topic'),
   selectedPosts: Em.computed.alias('topicController.selectedPosts'),
+  selectedReplies: Em.computed.alias('topicController.selectedReplies'),
   allPostsSelected: Em.computed.alias('topicController.allPostsSelected'),
 
   buttonDisabled: function() {
@@ -31,10 +32,13 @@ Discourse.MergeTopicController = Discourse.ObjectController.extend(Discourse.Sel
     if (this.get('allPostsSelected')) {
       promise = Discourse.Topic.mergeTopic(this.get('id'), this.get('selectedTopicId'));
     } else {
-      var postIds = this.get('selectedPosts').map(function(p) { return p.get('id'); });
+      var postIds = this.get('selectedPosts').map(function(p) { return p.get('id'); }),
+          replyPostIds = this.get('selectedReplies').map(function(p) { return p.get('id'); });
+
       promise = Discourse.Topic.movePosts(this.get('id'), {
         destination_topic_id: this.get('selectedTopicId'),
-        post_ids: postIds
+        post_ids: postIds,
+        reply_post_ids: replyPostIds
       });
     }
 
diff --git a/app/assets/javascripts/discourse/controllers/split_topic_controller.js b/app/assets/javascripts/discourse/controllers/split_topic_controller.js
index b07b007b0..7d2dd5993 100644
--- a/app/assets/javascripts/discourse/controllers/split_topic_controller.js
+++ b/app/assets/javascripts/discourse/controllers/split_topic_controller.js
@@ -12,6 +12,7 @@ Discourse.SplitTopicController = Discourse.ObjectController.extend(Discourse.Sel
 
   topicController: Em.computed.alias('controllers.topic'),
   selectedPosts: Em.computed.alias('topicController.selectedPosts'),
+  selectedReplies: Em.computed.alias('topicController.selectedReplies'),
 
   buttonDisabled: function() {
     if (this.get('saving')) return true;
@@ -30,21 +31,23 @@ Discourse.SplitTopicController = Discourse.ObjectController.extend(Discourse.Sel
   movePostsToNewTopic: function() {
     this.set('saving', true);
 
-    var postIds = this.get('selectedPosts').map(function(p) { return p.get('id'); });
-    var splitTopicController = this;
+    var postIds = this.get('selectedPosts').map(function(p) { return p.get('id'); }),
+        replyPostIds = this.get('selectedReplies').map(function(p) { return p.get('id'); }),
+        self = this;
 
     Discourse.Topic.movePosts(this.get('id'), {
       title: this.get('topicName'),
-      post_ids: postIds
+      post_ids: postIds,
+      reply_post_ids: replyPostIds
     }).then(function(result) {
       // Posts moved
-      splitTopicController.send('closeModal');
-      splitTopicController.get('topicController').toggleMultiSelect();
+      self.send('closeModal');
+      self.get('topicController').toggleMultiSelect();
       Em.run.next(function() { Discourse.URL.routeTo(result.url); });
     }, function() {
       // Error moving posts
-      splitTopicController.flash(I18n.t('topic.split_topic.error'));
-      splitTopicController.set('saving', false);
+      self.flash(I18n.t('topic.split_topic.error'));
+      self.set('saving', false);
     });
     return false;
   }
diff --git a/app/assets/javascripts/discourse/controllers/topic_controller.js b/app/assets/javascripts/discourse/controllers/topic_controller.js
index 6dc6c23c6..a1c969011 100644
--- a/app/assets/javascripts/discourse/controllers/topic_controller.js
+++ b/app/assets/javascripts/discourse/controllers/topic_controller.js
@@ -11,8 +11,15 @@ Discourse.TopicController = Discourse.ObjectController.extend(Discourse.Selected
   summaryCollapsed: true,
   needs: ['header', 'modal', 'composer', 'quoteButton'],
   allPostsSelected: false,
-  selectedPosts: new Em.Set(),
   editingTopic: false,
+  selectedPosts: null,
+  selectedReplies: null,
+
+  init: function() {
+    this._super();
+    this.set('selectedPosts', new Em.Set());
+    this.set('selectedReplies', new Em.Set());
+  },
 
   jumpTopDisabled: function() {
     return (this.get('progressPosition') === 1);
@@ -82,18 +89,49 @@ Discourse.TopicController = Discourse.ObjectController.extend(Discourse.Selected
     return false;
   }.property('postStream.loaded', 'currentPost', 'postStream.filteredPostsCount'),
 
-  selectPost: function(post) {
+  deselectPost: function(post) {
+    this.get('selectedPosts').removeObject(post);
+
+    var selectedReplies = this.get('selectedReplies');
+    selectedReplies.removeObject(post);
+
+    var selectedReply = selectedReplies.findProperty('post_number', post.get('reply_to_post_number'));
+    if (selectedReply) { selectedReplies.removeObject(selectedReply); }
+
+    this.set('allPostsSelected', false);
+  },
+
+  postSelected: function(post) {
+    if (this.get('allPostsSelected')) { return true; }
+    if (this.get('selectedPosts').contains(post)) { return true; }
+
+    if (this.get('selectedReplies').findProperty('post_number', post.get('reply_to_post_number'))) { return true; }
+
+    return false;
+  },
+
+  toggledSelectedPost: function(post) {
     var selectedPosts = this.get('selectedPosts');
-    if (selectedPosts.contains(post)) {
-      selectedPosts.removeObject(post);
-      this.set('allPostsSelected', false);
+    if (this.postSelected(post)) {
+      this.deselectPost(post);
+      return false;
     } else {
       selectedPosts.addObject(post);
 
       // If the user manually selects all posts, all posts are selected
       if (selectedPosts.length === this.get('posts_count')) {
-        this.set('allPostsSelected');
+        this.set('allPostsSelected', true);
       }
+      return true;
+    }
+  },
+
+  toggledSelectedPostReplies: function(post) {
+    var selectedReplies = this.get('selectedReplies');
+    if (this.toggledSelectedPost(post)) {
+      selectedReplies.addObject(post);
+    } else {
+      selectedReplies.removeObject(post);
     }
   },
 
@@ -108,6 +146,7 @@ Discourse.TopicController = Discourse.ObjectController.extend(Discourse.Selected
 
   deselectAll: function() {
     this.get('selectedPosts').clear();
+    this.get('selectedReplies').clear();
     this.set('allPostsSelected', false);
   },
 
@@ -177,19 +216,28 @@ Discourse.TopicController = Discourse.ObjectController.extend(Discourse.Selected
   },
 
   deleteSelected: function() {
-    var topicController = this;
+    var self = this;
     bootbox.confirm(I18n.t("post.delete.confirm", { count: this.get('selectedPostsCount')}), function(result) {
       if (result) {
 
         // If all posts are selected, it's the same thing as deleting the topic
-        if (topicController.get('allPostsSelected')) {
-          return topicController.deleteTopic();
+        if (self.get('allPostsSelected')) {
+          return self.deleteTopic();
         }
 
-        var selectedPosts = topicController.get('selectedPosts');
-        Discourse.Post.deleteMany(selectedPosts);
-        topicController.get('model.postStream').removePosts(selectedPosts);
-        topicController.toggleMultiSelect();
+        var selectedPosts = self.get('selectedPosts'),
+            selectedReplies = self.get('selectedReplies'),
+            postStream = self.get('postStream'),
+            toRemove = new Ember.Set();
+
+
+        Discourse.Post.deleteMany(selectedPosts, selectedReplies);
+        postStream.get('posts').forEach(function (p) {
+          if (self.postSelected(p)) { toRemove.addObject(p); }
+        });
+
+        postStream.removePosts(toRemove);
+        self.toggleMultiSelect();
       }
     });
   },
diff --git a/app/assets/javascripts/discourse/mixins/selected_posts_count.js b/app/assets/javascripts/discourse/mixins/selected_posts_count.js
index e9e6b5496..e30cfdf40 100644
--- a/app/assets/javascripts/discourse/mixins/selected_posts_count.js
+++ b/app/assets/javascripts/discourse/mixins/selected_posts_count.js
@@ -11,10 +11,15 @@ Discourse.SelectedPostsCount = Em.Mixin.create({
   selectedPostsCount: function() {
     if (this.get('allPostsSelected')) return this.get('posts_count') || this.get('topic.posts_count');
 
-    if (!this.get('selectedPosts')) return 0;
+    var sum = this.get('selectedPosts.length') || 0;
+    if (this.get('selectedReplies')) {
+      this.get('selectedReplies').forEach(function (p) {
+        sum += p.get('reply_count') || 0;
+      });
+    }
 
-    return this.get('selectedPosts.length');
-  }.property('selectedPosts.length', 'allPostsSelected')
+    return sum;
+  }.property('selectedPosts.length', 'allPostsSelected', 'selectedReplies.length')
 
 });
 
diff --git a/app/assets/javascripts/discourse/models/post.js b/app/assets/javascripts/discourse/models/post.js
index ab1e088d2..7e6f56560 100644
--- a/app/assets/javascripts/discourse/models/post.js
+++ b/app/assets/javascripts/discourse/models/post.js
@@ -328,8 +328,7 @@ Discourse.Post = Discourse.Model.extend({
 
   // Whether to show replies directly below
   showRepliesBelow: function() {
-    var reply_count, topic;
-    reply_count = this.get('reply_count');
+    var reply_count = this.get('reply_count');
 
     // We don't show replies if there aren't any
     if (reply_count === 0) return false;
@@ -341,7 +340,7 @@ Discourse.Post = Discourse.Model.extend({
     if (reply_count > 1) return true;
 
     // If we have *exactly* one reply, we have to consider if it's directly below us
-    topic = this.get('topic');
+    var topic = this.get('topic');
     return !topic.isReplyDirectlyBelow(this);
 
   }.property('reply_count'),
@@ -377,11 +376,12 @@ Discourse.Post.reopenClass({
     return result;
   },
 
-  deleteMany: function(posts) {
+  deleteMany: function(selectedPosts, selectedReplies) {
     return Discourse.ajax("/posts/destroy_many", {
       type: 'DELETE',
       data: {
-        post_ids: posts.map(function(p) { return p.get('id'); })
+        post_ids: selectedPosts.map(function(p) { return p.get('id'); }),
+        reply_post_ids: selectedReplies.map(function(p) { return p.get('id'); })
       }
     });
   },
diff --git a/app/assets/javascripts/discourse/templates/post.js.handlebars b/app/assets/javascripts/discourse/templates/post.js.handlebars
index 7817cd39a..7077f869d 100644
--- a/app/assets/javascripts/discourse/templates/post.js.handlebars
+++ b/app/assets/javascripts/discourse/templates/post.js.handlebars
@@ -32,7 +32,10 @@
     </div>
 
     <div class='topic-body span14'>
-      <button {{action selectPost this}} {{bindAttr class=":post-select controller.multiSelect::hidden"}}>{{view.selectText}}</button>
+      <div {{bindAttr class=":select-posts controller.multiSelect::hidden"}}>
+        <button {{action toggledSelectedPostReplies this}} {{bindAttr class="view.canSelectReplies::hidden"}}>{{i18n topic.multi_select.select_replies}}</button>
+        <button {{action toggledSelectedPost this}} class="select-post">{{view.selectPostText}}</button>
+      </div>
 
       <div {{bindAttr class="showUserReplyTab:avoid-tab view.repliesShown::bottom-round :contents :regular view.extraClass"}}>
         {{#unless controller.multiSelect}}
diff --git a/app/assets/javascripts/discourse/views/post_view.js b/app/assets/javascripts/discourse/views/post_view.js
index 272266e7f..466c388ee 100644
--- a/app/assets/javascripts/discourse/views/post_view.js
+++ b/app/assets/javascripts/discourse/views/post_view.js
@@ -29,17 +29,20 @@ Discourse.PostView = Discourse.GroupedView.extend({
 
   mouseUp: function(e) {
     if (this.get('controller.multiSelect') && (e.metaKey || e.ctrlKey)) {
-      this.get('controller').selectPost(this.get('post'));
+      this.get('controller').toggledSelectedPost(this.get('post'));
     }
   },
 
   selected: function() {
-    var selectedPosts = this.get('controller.selectedPosts');
-    if (!selectedPosts) return false;
-    return selectedPosts.contains(this.get('post'));
+    return this.get('controller').postSelected(this.get('post'));
   }.property('controller.selectedPostsCount'),
 
-  selectText: function() {
+  canSelectReplies: function() {
+    if (this.get('post.reply_count') === 0) { return false; }
+    return !this.get('selected');
+  }.property('post.reply_count', 'selected'),
+
+  selectPostText: function() {
     return this.get('selected') ? I18n.t('topic.multi_select.selected', { count: this.get('controller.selectedPostsCount') }) : I18n.t('topic.multi_select.select');
   }.property('selected', 'controller.selectedPostsCount'),
 
diff --git a/app/assets/stylesheets/application/topic-post.css.scss b/app/assets/stylesheets/application/topic-post.css.scss
index 901f23ae0..53530595c 100644
--- a/app/assets/stylesheets/application/topic-post.css.scss
+++ b/app/assets/stylesheets/application/topic-post.css.scss
@@ -500,9 +500,11 @@
   }
   &.selected {
     article.boxed {
-      .post-select {
-        background-color: $blue;
-        color: $white;
+      .select-posts {
+        button.select-post {
+          background-color: $blue;
+          color: $white;
+        }
       }
       .topic-body {
         .contents {
@@ -519,20 +521,23 @@
     font-size: 16px;
     line-height: 20px;
 
-    .post-select {
-      @include border-radius-all(4px);
-      background-color: $light_gray;
-      border-top: 1px solid $white;
-      border-left: 1px solid $white;
-      border-bottom: 1px solid $gray;
-      border-right: 1px solid $gray;
-      color: $darkish_gray;
-      top: 4px;
+    .select-posts {
       position: absolute;
       right: 5px;
-      font-size: 12px;
-      padding: 2px 5px;
       z-index: 490;
+      top: 4px;
+
+      button {
+        @include border-radius-all(4px);
+        background-color: $light_gray;
+        border-top: 1px solid $white;
+        border-left: 1px solid $white;
+        border-bottom: 1px solid $gray;
+        border-right: 1px solid $gray;
+        color: $darkish_gray;
+        font-size: 12px;
+        padding: 2px 5px;
+      }
     }
 
     img {
diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index a9b6abbc9..da27cd283 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -191,6 +191,16 @@ class ApplicationController < ActionController::Base
     user
   end
 
+  def post_ids_including_replies
+    post_ids = params[:post_ids].map {|p| p.to_i}
+    if params[:reply_post_ids]
+      post_ids << PostReply.where(post_id: params[:reply_post_ids].map {|p| p.to_i}).pluck(:reply_id)
+      post_ids.flatten!
+      post_ids.uniq!
+    end
+    post_ids
+  end
+
   private
 
     def preload_anonymous_data
diff --git a/app/controllers/posts_controller.rb b/app/controllers/posts_controller.rb
index 6a990875e..c3748b7a5 100644
--- a/app/controllers/posts_controller.rb
+++ b/app/controllers/posts_controller.rb
@@ -150,10 +150,11 @@ class PostsController < ApplicationController
 
     params.require(:post_ids)
 
-    posts = Post.where(id: params[:post_ids])
+    posts = Post.where(id: post_ids_including_replies)
     raise Discourse::InvalidParameters.new(:post_ids) if posts.blank?
 
     # Make sure we can delete the posts
+
     posts.each {|p| guardian.ensure_can_delete!(p) }
 
     Post.transaction do
diff --git a/app/controllers/topics_controller.rb b/app/controllers/topics_controller.rb
index c2acad8b7..2005e42f1 100644
--- a/app/controllers/topics_controller.rb
+++ b/app/controllers/topics_controller.rb
@@ -244,7 +244,7 @@ class TopicsController < ApplicationController
     topic = Topic.where(id: params[:topic_id]).first
     guardian.ensure_can_move_posts!(topic)
 
-    dest_topic = move_post_to_destination(topic)
+    dest_topic = move_posts_to_destination(topic)
     render_topic_changes(dest_topic)
   end
 
@@ -333,12 +333,12 @@ class TopicsController < ApplicationController
 
   private
 
-  def move_post_to_destination(topic)
+  def move_posts_to_destination(topic)
     args = {}
     args[:title] = params[:title] if params[:title].present?
     args[:destination_topic_id] = params[:destination_topic_id].to_i if params[:destination_topic_id].present?
 
-    topic.move_posts(current_user, params[:post_ids].map {|p| p.to_i}, args)
+    topic.move_posts(current_user, post_ids_including_replies, args)
   end
 
 end
diff --git a/config/jshint.yml b/config/jshint.yml
index 7da52be34..588a527d8 100644
--- a/config/jshint.yml
+++ b/config/jshint.yml
@@ -92,6 +92,7 @@ predef:
   - find
   - sinon
   - controllerFor
+  - testController
   - Favcount
 
 browser:  true      # true if the standard browser globals should be predefined
diff --git a/config/locales/client.en.yml b/config/locales/client.en.yml
index dc26b2cd6..1f7bdadb1 100644
--- a/config/locales/client.en.yml
+++ b/config/locales/client.en.yml
@@ -763,6 +763,7 @@ en:
       multi_select:
         select: 'select'
         selected: 'selected ({{count}})'
+        select_replies: 'select +replies'
         delete: delete selected
         cancel: cancel selecting
         description:
diff --git a/spec/controllers/posts_controller_spec.rb b/spec/controllers/posts_controller_spec.rb
index 578dafd89..70e5d401d 100644
--- a/spec/controllers/posts_controller_spec.rb
+++ b/spec/controllers/posts_controller_spec.rb
@@ -163,10 +163,10 @@ describe PostsController do
 
       let!(:poster) { log_in(:moderator) }
       let!(:post1) { Fabricate(:post, user: poster, post_number: 2) }
-      let!(:post2) { Fabricate(:post, topic_id: post1.topic_id, user: poster, post_number: 3) }
+      let!(:post2) { Fabricate(:post, topic_id: post1.topic_id, user: poster, post_number: 3, reply_to_post_number: post1.post_number) }
 
       it "raises invalid parameters no post_ids" do
-	lambda { xhr :delete, :destroy_many }.should raise_error(ActionController::ParameterMissing)
+        lambda { xhr :delete, :destroy_many }.should raise_error(ActionController::ParameterMissing)
       end
 
       it "raises invalid parameters with missing ids" do
@@ -189,6 +189,19 @@ describe PostsController do
         xhr :delete, :destroy_many, post_ids: [post1.id, post2.id]
       end
 
+      describe "can delete replies" do
+
+        before do
+          PostReply.create(post_id: post1.id, reply_id: post2.id)
+        end
+
+        it "deletes the post and the reply to it" do
+          Post.any_instance.expects(:destroy).twice
+          xhr :delete, :destroy_many, post_ids: [post1.id], reply_post_ids: [post1.id]
+        end
+
+      end
+
     end
 
   end
diff --git a/spec/controllers/topics_controller_spec.rb b/spec/controllers/topics_controller_spec.rb
index 787acb756..fb2c61ee3 100644
--- a/spec/controllers/topics_controller_spec.rb
+++ b/spec/controllers/topics_controller_spec.rb
@@ -93,6 +93,27 @@ describe TopicsController do
       end
     end
 
+    describe "moving replied posts" do
+      let!(:user) { log_in(:moderator) }
+      let!(:p1) { Fabricate(:post, user: user) }
+      let!(:topic) { p1.topic }
+      let!(:p2) { Fabricate(:post, topic: topic, user: user, reply_to_post_number: p1.post_number ) }
+
+      context 'success' do
+
+        before do
+          PostReply.create(post_id: p1.id, reply_id: p2.id)
+        end
+
+        it "moves the child posts too" do
+          Topic.any_instance.expects(:move_posts).with(user, [p1.id, p2.id], title: 'blah').returns(topic)
+          xhr :post, :move_posts, topic_id: topic.id, title: 'blah', post_ids: [p1.id], reply_post_ids: [p1.id]
+        end
+      end
+
+    end
+
+
     describe 'moving to an existing topic' do
       let!(:user) { log_in(:moderator) }
       let(:p1) { Fabricate(:post, user: user) }
diff --git a/test/javascripts/controllers/avatar_selector_controller_test.js b/test/javascripts/controllers/avatar_selector_controller_test.js
index 7fd84a30f..9bcc6ad17 100644
--- a/test/javascripts/controllers/avatar_selector_controller_test.js
+++ b/test/javascripts/controllers/avatar_selector_controller_test.js
@@ -7,7 +7,7 @@ var avatarSelector = Em.Object.create({
 module("Discourse.AvatarSelectorController");
 
 test("avatarTemplate", function() {
-  var avatarSelectorController = controllerFor("avatarSelector");
+  var avatarSelectorController = testController(Discourse.AvatarSelectorController);
   avatarSelectorController.setProperties(avatarSelector);
 
   equal(avatarSelectorController.get("avatarTemplate"),
diff --git a/test/javascripts/controllers/flag_controller_test.js b/test/javascripts/controllers/flag_controller_test.js
index a8bbc23dd..57840c567 100644
--- a/test/javascripts/controllers/flag_controller_test.js
+++ b/test/javascripts/controllers/flag_controller_test.js
@@ -16,7 +16,7 @@ var buildAdminUser = function(args) {
 module("Discourse.FlagController canDeleteSpammer");
 
 test("canDeleteSpammer not staff", function(){
-  var flagController = controllerFor('flag', buildPost());
+  var flagController = testController(Discourse.FlagController, buildPost());
   this.stub(Discourse.User, 'currentProp').withArgs('staff').returns(false);
   flagController.set('selected', Discourse.PostActionType.create({name_key: 'spam'}));
   equal(flagController.get('canDeleteSpammer'), false, 'false if current user is not staff');
@@ -29,7 +29,7 @@ var canDeleteSpammer = function(test, postActionType, expected, testName) {
 
 test("canDeleteSpammer spam not selected", function(){
   this.stub(Discourse.User, 'currentProp').withArgs('staff').returns(true);
-  this.flagController = controllerFor('flag', buildPost());
+  this.flagController = testController(Discourse.FlagController, buildPost());
   this.flagController.set('userDetails', buildAdminUser({can_delete_all_posts: true, can_be_deleted: true}));
   canDeleteSpammer(this, 'off_topic', false, 'false if current user is staff, but selected is off_topic');
   canDeleteSpammer(this, 'inappropriate', false, 'false if current user is staff, but selected is inappropriate');
@@ -39,7 +39,7 @@ test("canDeleteSpammer spam not selected", function(){
 
 test("canDeleteSpammer spam selected", function(){
   this.stub(Discourse.User, 'currentProp').withArgs('staff').returns(true);
-  this.flagController = controllerFor('flag', buildPost());
+  this.flagController = testController(Discourse.FlagController, buildPost());
 
   this.flagController.set('userDetails', buildAdminUser({can_delete_all_posts: true, can_be_deleted: true}));
   canDeleteSpammer(this, 'spam', true, 'true if current user is staff, selected is spam, posts and user can be deleted');
diff --git a/test/javascripts/controllers/topic_controller_test.js b/test/javascripts/controllers/topic_controller_test.js
index 950b861f1..f45338c24 100644
--- a/test/javascripts/controllers/topic_controller_test.js
+++ b/test/javascripts/controllers/topic_controller_test.js
@@ -1,22 +1,19 @@
+module("Discourse.TopicController");
 
-var topic = Discourse.Topic.create({
-  title: "Qunit Test Topic",
-  participants: [
-    {id: 1234,
-     post_count: 4,
-     username: "eviltrout"}
-  ]
-});
-
-
-module("Discourse.TopicController", {
-  setup: function() {
-    this.topicController = controllerFor('topic', topic);
-  }
-});
+var buildTopic = function() {
+  return Discourse.Topic.create({
+    title: "Qunit Test Topic",
+    participants: [
+      {id: 1234,
+       post_count: 4,
+       username: "eviltrout"}
+    ]
+  });
+};
 
 test("editingMode", function() {
-  var topicController = this.topicController;
+  var topic = buildTopic(),
+      topicController = testController(Discourse.TopicController, topic);
 
   ok(!topicController.get('editingTopic'), "we are not editing by default");
 
@@ -32,4 +29,89 @@ test("editingMode", function() {
 
   topicController.cancelEditingTopic();
   ok(!topicController.get('editingTopic'), "cancelling edit mode reverts the property value");
-});
\ No newline at end of file
+});
+
+test("toggledSelectedPost", function() {
+  var tc = testController(Discourse.TopicController, buildTopic()),
+      post = Discourse.Post.create({id: 123, post_number: 2}),
+      postStream = tc.get('postStream');
+
+  postStream.appendPost(post);
+  postStream.appendPost(Discourse.Post.create({id: 124, post_number: 3}));
+
+  blank(tc.get('selectedPosts'), "there are no selected posts by default");
+  equal(tc.get('selectedPostsCount'), 0, "there is a selected post count of 0");
+  ok(!tc.postSelected(post), "the post is not selected by default");
+
+  tc.toggledSelectedPost(post);
+  present(tc.get('selectedPosts'), "there is a selectedPosts collection");
+  equal(tc.get('selectedPostsCount'), 1, "there is a selected post now");
+  ok(tc.postSelected(post), "the post is now selected");
+
+  tc.toggledSelectedPost(post);
+  ok(!tc.postSelected(post), "the post is no longer selected");
+
+});
+
+test("selectAll", function() {
+  var tc = testController(Discourse.TopicController, buildTopic()),
+      post = Discourse.Post.create({id: 123, post_number: 2}),
+      postStream = tc.get('postStream');
+
+  postStream.appendPost(post);
+
+  ok(!tc.postSelected(post), "the post is not selected by default");
+  tc.selectAll();
+  ok(tc.postSelected(post), "the post is now selected");
+  ok(tc.get('allPostsSelected'), "all posts are selected");
+  tc.deselectAll();
+  ok(!tc.postSelected(post), "the post is deselected again");
+  ok(!tc.get('allPostsSelected'), "all posts are not selected");
+
+});
+
+test("Automating setting of allPostsSelected", function() {
+  var topic = buildTopic(),
+      tc = testController(Discourse.TopicController, topic),
+      post = Discourse.Post.create({id: 123, post_number: 2}),
+      postStream = tc.get('postStream');
+
+  topic.set('posts_count', 1);
+  postStream.appendPost(post);
+  ok(!tc.get('allPostsSelected'), "all posts are not selected by default");
+
+  tc.toggledSelectedPost(post);
+  ok(tc.get('allPostsSelected'), "all posts are selected if we select the only post");
+
+  tc.toggledSelectedPost(post);
+  ok(!tc.get('allPostsSelected'), "the posts are no longer automatically selected");
+});
+
+test("Select Replies when present", function() {
+  var topic = buildTopic(),
+      tc = testController(Discourse.TopicController, topic),
+      p1 = Discourse.Post.create({id: 1, post_number: 1, reply_count: 1}),
+      p2 = Discourse.Post.create({id: 2, post_number: 2}),
+      p3 = Discourse.Post.create({id: 2, post_number: 3, reply_to_post_number: 1}),
+      postStream = tc.get('postStream');
+
+  ok(!tc.postSelected(p3), "replies are not selected by default");
+  tc.toggledSelectedPostReplies(p1);
+  ok(tc.postSelected(p1), "it selects the post");
+  ok(!tc.postSelected(p2), "it doesn't select a post that's not a reply");
+  ok(tc.postSelected(p3), "it selects a post that is a reply");
+  equal(tc.get('selectedPostsCount'), 2, "it has a selected posts count of two");
+
+  // If we deselected the post whose replies are selected...
+  tc.toggledSelectedPost(p1);
+  ok(!tc.postSelected(p1), "it deselects the post");
+  ok(!tc.postSelected(p3), "it deselects the replies too");
+
+  // If we deselect a reply, it should deselect the parent's replies selected attribute. Weird but what else would make sense?
+  tc.toggledSelectedPostReplies(p1);
+  tc.toggledSelectedPost(p3);
+  ok(tc.postSelected(p1), "the post stays selected");
+  ok(!tc.postSelected(p3), "it deselects the replies too");
+
+});
+
diff --git a/test/javascripts/helpers/qunit_helpers.js b/test/javascripts/helpers/qunit_helpers.js
index 3ad3732e6..5254c24ae 100644
--- a/test/javascripts/helpers/qunit_helpers.js
+++ b/test/javascripts/helpers/qunit_helpers.js
@@ -14,6 +14,10 @@ function integration(name) {
   });
 }
 
+function testController(klass, model) {
+  return klass.create({model: model, container: Discourse.__container__});
+}
+
 function controllerFor(controller, model) {
   var controller = Discourse.__container__.lookup('controller:' + controller);
   if (model) { controller.set('model', model ); }
diff --git a/test/javascripts/jshint_all.js.erb b/test/javascripts/jshint_all.js.erb
index 0515fa670..34b7eea68 100644
--- a/test/javascripts/jshint_all.js.erb
+++ b/test/javascripts/jshint_all.js.erb
@@ -122,6 +122,7 @@ var jsHintOpts = {
     "console",
     "alert",
     "controllerFor",
+    "testController",
     "containsInstance",
     "deepEqual",
     "notEqual",