Allow changing ownwership of posts by admins

spec/controllers/topics_controller_spec.rb

@@ -195,6 +195,73 @@ describe TopicsController do
 
   end
 
+  context 'change_post_owners' do
+    it 'needs you to be logged in' do
+      lambda { xhr :post, :change_post_owners, topic_id: 111, username: 'user_a', post_ids: [1,2,3] }.should raise_error(Discourse::NotLoggedIn)
+    end
+
+    describe 'forbidden to moderators' do
+      let!(:moderator) { log_in(:moderator) }
+      it 'correctly denies' do
+        xhr :post, :change_post_owners, topic_id: 111, username: 'user_a', post_ids: [1,2,3]
+        response.should be_forbidden
+      end
+    end
+
+    describe 'forbidden to elders' do
+      let!(:elder) { log_in(:elder) }
+
+      it 'correctly denies' do
+        xhr :post, :change_post_owners, topic_id: 111, username: 'user_a', post_ids: [1,2,3]
+        response.should be_forbidden
+      end
+    end
+
+    describe 'changing ownership' do
+      let!(:editor) { log_in(:admin) }
+      let(:topic) { Fabricate(:topic) }
+      let(:user_a) { Fabricate(:user) }
+      let(:p1) { Fabricate(:post, topic_id: topic.id) }
+
+      it "raises an error with a parameter missing" do
+        lambda { xhr :post, :change_post_owners, topic_id: 111, post_ids: [1,2,3] }.should raise_error(ActionController::ParameterMissing)
+        lambda { xhr :post, :change_post_owners, topic_id: 111, username: 'user_a' }.should raise_error(ActionController::ParameterMissing)
+      end
+
+      it "calls PostRevisor" do
+        PostRevisor.any_instance.expects(:revise!)
+        xhr :post, :change_post_owners, topic_id: topic.id, username: user_a.username_lower, post_ids: [p1.id]
+        response.should be_success
+      end
+
+      it "changes the user" do
+        old_user = p1.user
+        xhr :post, :change_post_owners, topic_id: topic.id, username: user_a.username_lower, post_ids: [p1.id]
+        p1.reload
+        old_user.should_not == p1.user
+      end
+
+      # Make sure that p1.reload isn't changing the user for us
+      it "is not an artifact of the framework" do
+        old_user = p1.user
+        # xhr :post, :change_post_owners, topic_id: topic.id, username: user_a.username_lower, post_ids: [p1.id]
+        p1.reload
+        p1.user.should_not == nil
+        old_user.should == p1.user
+      end
+
+      let(:p2) { Fabricate(:post, topic_id: topic.id) }
+
+      it "changes multiple posts" do
+        xhr :post, :change_post_owners, topic_id: topic.id, username: user_a.username_lower, post_ids: [p1.id, p2.id]
+        p1.reload
+        p2.reload
+        p1.user.should_not == nil
+        p1.user.should == p2.user
+      end
+    end
+  end
+
   context 'similar_to' do
 
     let(:title) { 'this title is long enough to search for' }