some basic tests for post presenter; added user.reshare!

app/models/user/social_actions.rb

 module User::SocialActions
   def comment!(target, text, opts={})
-    participations.where(:target_id => target).first || participate!(target)
+    find_or_create_participation!(target)
     Comment::Generator.new(self, target, text).create!(opts)
   end
 
@@ -9,11 +9,23 @@ module User::SocialActions
   end
 
   def like!(target, opts={})
-    participations.where(:target_id => target).first || participate!(target)
+    find_or_create_participation!(target)
     Like::Generator.new(self, target).create!(opts)
   end
 
+  def reshare!(target, opts={})
+    find_or_create_participation!(target)
+    reshare = build_post(:reshare, :root_guid => target.guid)
+    reshare.save!
+    Postzord::Dispatcher.defer_build_and_post(self, reshare)
+    reshare
+  end
+
   def build_comment(options={})
     Comment::Generator.new(self, options.delete(:post), options.delete(:text)).build(options)
   end
+
+  def find_or_create_participation!(target)
+    participations.where(:target_id => target).first || participate!(target)
+  end
 end
\ No newline at end of file

app/presenters/post_presenter.rb

@@ -18,40 +18,39 @@ class PostPresenter
         :participations_count => self.post.participations.count,
         :reshares_count => self.post.reshares.count,
         :user_reshare => self.user_reshare,
-        :next_post => self.next_post_url,
-        :previous_post => self.previous_post_url
+        :next_post => self.next_post_path,
+        :previous_post => self.previous_post_path
       }),
-      :templateName => TemplatePicker.new(self.post).template_name
+      :templateName => template_name
     }
   end
 
   def user_like
-    return unless self.current_user.present?
-    if like = Like.where(:target_id => self.post.id, :target_type => "Post", :author_id => current_user.person.id).first
+    return unless user_signed_in?
+    if like = post.likes.where(:author_id => person.id).first
       like.as_api_response(:backbone)
     end
   end
 
   def user_participation
-    return unless self.current_user.present?
-
-    if participation = Participation.where(:target_id => self.post.id, :target_type => "Post", :author_id => current_user.person.id).first
+    return unless user_signed_in?
+    if participation = post.participations.where(:author_id => person.id).first
       participation.as_api_response(:backbone)
     end
   end
 
   def user_reshare
-    return unless self.current_user.present?
-    Reshare.where(:root_guid => self.post.guid, :author_id => current_user.person.id).exists?
+    return unless user_signed_in?
+    self.post.reshares.where(:author_id => person.id).first
   end
 
-  def next_post_url
+  def next_post_path
     if n = next_post
       Rails.application.routes.url_helpers.post_path(n)
     end
   end
 
-  def previous_post_url
+  def previous_post_path
     if p = previous_post
       Rails.application.routes.url_helpers.post_path(p)
     end
@@ -65,6 +64,10 @@ class PostPresenter
     post_base.previous(post)
   end
 
+  def template_name
+    @template_name ||= TemplatePicker.new(post).template_name
+  end
+
   protected
 
   def post_base
@@ -74,4 +77,12 @@ class PostPresenter
       self.post.author.posts.all_public
     end
   end
+
+  def person
+    self.current_user.person
+  end
+
+  def user_signed_in?
+    current_user.present?
+  end
 end

spec/presenters/post_presenter_spec.rb

+require 'spec_helper'
+
+describe PostPresenter do
+  before do
+    @sm = Factory(:status_message, :public => true)
+    @presenter = PostPresenter.new(@sm, bob)
+    @unauthenticated_presenter = PostPresenter.new(@sm)
+  end
+
+  it 'takes a post and an optional user' do
+    @presenter.should_not be_nil
+  end
+
+  describe '#to_json' do
+    it 'works with a user' do
+      @presenter.to_json.should be_a Hash
+    end
+
+    it 'works without a user' do
+      @unauthenticated_presenter.to_json.should be_a Hash
+    end
+  end
+
+  describe '#user_like' do
+    it 'includes the users like' do
+      bob.like!(@sm)
+      @presenter.user_like.should be_present
+    end
+
+    it 'is nil if the user is not authenticated' do
+      @unauthenticated_presenter.user_like.should be_nil
+    end
+  end
+
+  describe '#user_reshare' do
+    it 'includes the users reshare' do
+      bob.reshare!(@sm)
+      @presenter.user_reshare.should be_present
+    end
+
+    it 'is nil if the user is not authenticated' do
+      @unauthenticated_presenter.user_reshare.should be_nil
+    end
+  end
+
+  describe '#user_participation' do
+    it 'includes the users participation' do
+      bob.participate!(@sm)
+      @presenter.user_participation.should be_present
+    end
+
+    it 'is nil if the user is not authenticated' do
+      @unauthenticated_presenter.user_participation.should be_nil
+    end
+  end
+
+  describe '#next_post_path' do
+    it 'returns a string of the users next post' do
+      @presenter.should_receive(:next_post).and_return(@sm)
+      @presenter.next_post_path.should ==  Rails.application.routes.url_helpers.post_path(@sm)
+    end
+  end
+
+  describe '#previous_post_path' do
+    it 'returns a string of the users next post' do
+      @presenter.should_receive(:previous_post).and_return(@sm)
+      @presenter.previous_post_path.should ==  Rails.application.routes.url_helpers.post_path(@sm)
+    end
+  end
+end
\ No newline at end of file