FIX: Tests could get stucked in infinite loop if it fails to resolve IP of a hostname.

app/jobs/regular/pull_hotlinked_images.rb

@@ -62,7 +62,9 @@ module Jobs
         if is_valid_image_url(src)
           begin
             # have we already downloaded that file?
-            unless downloaded_images.include?(src) || large_images.include?(src) || broken_images.include?(src)
+            schemeless_src = remove_scheme(original_src)
+
+            unless downloaded_images.include?(schemeless_src) || large_images.include?(schemeless_src) || broken_images.include?(schemeless_src)
               if hotlinked = download(src)
                 if File.size(hotlinked.path) <= @max_size
                   filename = File.basename(URI.parse(src).path)
@@ -70,17 +72,17 @@ module Jobs
                   upload = UploadCreator.new(hotlinked, filename, origin: src).create_for(post.user_id)
                   if upload.persisted?
                     downloaded_urls[src] = upload.url
-                    downloaded_images[src.sub(/^https?:/i, "")] = upload.id
+                    downloaded_images[remove_scheme(src)] = upload.id
                     has_downloaded_image = true
                   else
                     log(:info, "Failed to pull hotlinked image for post: #{post_id}: #{src} - #{upload.errors.full_messages.join("\n")}")
                   end
                 else
-                  large_images << original_src.sub(/^https?:/i, "")
+                  large_images << remove_scheme(src)
                   has_new_large_image = true
                 end
               else
-                broken_images << original_src.sub(/^https?:/i, "")
+                broken_images << remove_scheme(src)
                 has_new_broken_image = true
               end
             end
@@ -170,6 +172,11 @@ module Jobs
       )
     end
 
+    private
+
+      def remove_scheme(src)
+        src.sub(/^https?:/i, "")
+      end
   end
 
 end

lib/final_destination.rb

@@ -312,11 +312,11 @@ class FinalDestination
   end
 
   def self.lookup_ip(host)
-    # TODO clean this up in the test suite, cause it is a mess
-    # if Rails.env == "test"
-    #   STDERR.puts "WARNING FinalDestination.lookup_ip was called with host: #{host}, this is network call that should be mocked"
-    # end
-    IPSocket::getaddress(host)
+    if Rails.env.test?
+      "0.0.0.0"
+    else
+      IPSocket::getaddress(host)
+    end
   rescue SocketError
     nil
   end

spec/models/user_avatar_spec.rb

@@ -46,6 +46,9 @@ describe UserAvatar do
 
     describe 'when avatar url returns an invalid status code' do
       it 'should not do anything' do
+        stub_request(:get, "http://thisfakesomething.something.com/")
+          .to_return(status: 500, body: "", headers: {})
+
         url = "http://thisfakesomething.something.com/"
 
         UserAvatar.import_url_for_user(url, user)