Make author decorators able to handle authors without websites

app/decorators/author_decorator.rb

@@ -28,17 +28,23 @@ def absolute_avatar_url
 
   # Creates a link to the user's website for their profile
   def website_link
-    h.link_to(
-      absolute_website_url,
-      absolute_website_url,
-      :rel => 'website',
-      :class => 'url'
-    )
+    if absolute_website_url.present?
+      h.link_to(
+        absolute_website_url,
+        absolute_website_url,
+        :rel => 'website',
+        :class => 'url'
+      )
+    else
+      ""
+    end
   end
 
   # adds http:// if it isn't there
   def absolute_website_url
-    if author.website[0,7] == "http://" or author.website[0,8] == "https://"
+    if author.website.blank?
+      nil
+    elsif author.website[0,7] == "http://" or author.website[0,8] == "https://"
       author.website
     else
       "http://#{author.website}"

test/decorators/author_decorator_test.rb

@@ -9,12 +9,37 @@
     end
 
     it 'returns link to authors website' do
-      assert_match 'http://example.com', @author.website_link
+      @author.website_link.must_match('http://example.com')
     end
 
     it 'returns link to authors website when website is without http prefix' do
       @author.website = 'test.com'
-      assert_match 'http://test.com', @author.website_link
+      @author.website_link.must_match('http://test.com')
+    end
+
+    it "returns empty string if the author doesn't have a website" do
+      @author.website = nil
+      @author.website_link.must_equal("")
+    end
+  end
+
+  describe "#absolute_website_url" do
+    before do
+      @author = AuthorDecorator.decorate(Fabricate(:author))
+    end
+
+    it 'returns url to authors website' do
+      @author.absolute_website_url.must_equal('http://example.com')
+    end
+
+    it 'returns url to authors website when website is without http prefix' do
+      @author.website = 'test.com'
+      @author.absolute_website_url.must_equal('http://test.com')
+    end
+
+    it "returns nil if the author doesn't have a website" do
+      @author.website = nil
+      @author.absolute_website_url.must_equal(nil)
     end
   end
 end