Fixed Test

app/helpers/lazy_image_tag_helper.rb

@@ -9,10 +9,10 @@ module LazyImageTagHelper
 
     unless options.delete(:lazy) == false
       options[:data] ||= {}
-      unless options.delete(:use_original_source)
-        options[:data][:src] = path_to_image(source)
-      else
+      if options.delete(:use_original_source)
         options[:data][:src] = source
+      else
+        options[:data][:src] = path_to_image(source)        
       end
       options[:class] ||= ""
       options[:class] << " lazy"

spec/helpers/groups_helper_spec.rb

@@ -48,9 +48,8 @@ describe GroupsHelper do
 
     it 'returns an based url for the avatar if private' do
       allow(ActionController::Base).to receive(:asset_host).and_return(asset_host)
-      group = create(:group)
+      group = create(:group, :private)
       group.avatar = fixture_file_upload(avatar_file_path)
-      group.private = true
       group.save!
       expect(group_icon_url(group.path).to_s)
         .to match("/uploads/-/system/group/avatar/#{group.id}/banana_sample.gif")