additional error handling in tests

app/models/artist.rb

@@ -484,7 +484,7 @@ class Artist < ApplicationRecord
       else
         nil
       end
-    rescue Net::OpenTimeout
+    rescue Net::OpenTimeout, PixivApiClient::Error
       raise if Rails.env.test?
       nil
     rescue Exception

app/models/artist_url.rb

@@ -21,7 +21,7 @@ class ArtistUrl < ApplicationRecord
 
       begin
         url = Sources::Site.new(url).normalize_for_artist_finder!
-      rescue PixivApiClient::Error
+      rescue Net::OpenTimeout, PixivApiClient::Error
         raise if Rails.env.test?
       rescue Sources::Site::NoStrategyError
       end

test/unit/upload_test.rb

@@ -87,9 +87,13 @@ class UploadTest < ActiveSupport::TestCase
           end
 
           should "process successfully" do
-            _, _, output_file = @upload.download_from_source(@url, "")
-            assert_operator(output_file.size, :>, 1_000)
-            assert_equal("zip", @upload.file_header_to_file_ext(output_file))
+            begin
+              _, _, output_file = @upload.download_from_source(@url, "")
+              assert_operator(output_file.size, :>, 1_000)
+              assert_equal("zip", @upload.file_header_to_file_ext(output_file))
+            rescue Net::OpenTimeout
+              skip "Remote connection to #{@url} failed"
+            end
           end
         end
       end