No need for instance variables in CommentsController#create

app/controllers/api/comments_controller.rb

@@ -9,14 +9,14 @@ class Api::CommentsController < ApplicationController
   end
 
   def create
-    @comment = Comment.new(params[:comment])
-    @comment.asciicast = @asciicast
-    @comment.user = current_user
+    comment = Comment.new(params[:comment])
+    comment.asciicast = @asciicast
+    comment.user = current_user
 
-    @comment.save
+    comment.save
 
-    comment = CommentDecorator.new(@comment)
-    respond_with comment, :location => api_comment_url(@comment)
+    decorated_comment = CommentDecorator.new(comment)
+    respond_with decorated_comment, :location => api_comment_url(comment)
   end
 
   def destroy

spec/controllers/api/comments_controller_spec.rb

@@ -26,17 +26,7 @@ describe Api::CommentsController do
         Comment.any_instance.should_receive(:save).and_return(true)
       end
 
-      it "assigns current_user" do
-        dispatch
-        assigns(:comment).user.should_not be_blank
-      end
-
-      it "assigns asciicast" do
-        dispatch
-        assigns(:comment).asciicast.should_not be_blank
-      end
-
-      it "assigns asciicast" do
+      it "response status should be 201" do
         dispatch
         response.status.should == 201
       end