Title should not be truncated content

lib/micropub/post.rb

@@ -10,7 +10,7 @@ module Micropub
     end
 
     def id
-      title.
+      (title || truncated_content).
         downcase.
         gsub(/[^a-z]+/, " ").
         strip.
@@ -18,7 +18,7 @@ module Micropub
     end
 
     def title
-      params["title"] || truncated_content
+      params["title"]
     end
 
     def path

test/lib/micropub/models/post_test.rb

@@ -39,10 +39,10 @@ describe Micropub::Post do
       _(post.title).must_equal "My great post"
     end
 
-    it "returns the content if there's no title" do
+    it "returns nil if there's no title" do
       post = Micropub::Post.new("content" => "My money's in that office, right?")
 
-      _(post.title).must_equal "My money's in that office, right?"
+      assert_nil post.title
     end
   end