Minor fixes (#37)

Add no index header on RSS feed to prevent google wasting time on it and fixes some test compiler warnings

Author: joladev

lib/jola_dev_web/controllers/rss_controller.ex

@@ -6,6 +6,7 @@ defmodule JolaDevWeb.RssController do
 
     conn
     |> put_resp_content_type("application/rss+xml")
+    |> put_resp_header("x-robots-tag", "noindex")
     |> render(:index, posts: posts)
   end
 end

test/jola_dev/blog_test.exs

@@ -7,7 +7,7 @@ defmodule JolaDev.BlogTest do
       posts = Blog.all_posts()
 
       assert is_list(posts)
-      assert posts != []
+      assert [_ | _] = posts
 
       # Verify posts are sorted by date in descending order
       dates = Enum.map(posts, & &1.date)
@@ -20,7 +20,7 @@ defmodule JolaDev.BlogTest do
       tags = Blog.all_tags()
 
       assert is_list(tags)
-      assert tags != []
+      assert [_ | _] = tags
       assert tags == Enum.uniq(tags)
       assert tags == Enum.sort(tags)
     end