Fix artist finder for hentai foundry

#2489

test/unit/artist_url_test.rb

@@ -44,6 +44,11 @@ class ArtistUrlTest < ActiveSupport::TestCase
       assert_equal("http://seiga.nicovideo.jp/user/illust/1826959/", url.normalized_url)
     end
 
+    should "normalize hentai foundry artist urls" do
+      url = FactoryGirl.create(:artist_url, :url => "http://pictures.hentai-foundry.com//a/AnimeFlux/219123.jpg")
+      assert_equal("http://pictures.hentai-foundry.com/a/AnimeFlux/219123.jpg/", url.normalized_url)
+    end
+
     should "normalize pixiv urls" do
       url = FactoryGirl.create(:artist_url, :url => "http://img55.pixiv.net/img/monet")
       assert_equal("http://img55.pixiv.net/img/monet", url.url)