Added prospective test for encoding conflict errors

Author: ikirker

test/test_wayback_machine_downloader.rb

@@ -89,5 +89,14 @@ def test_file_list_exclude_filter_with_a_regex
     @wayback_machine_downloader.all = true
     assert_equal 69, @wayback_machine_downloader.get_file_list_curated.size
   end
+ 
+  # Testing encoding conflicts needs a different base_url
+  def test_nonascii_suburls_download
+    @wayback_machine_downloader = WaybackMachineDownloader.new base_url: 'https://en.wikipedia.org/wiki/%C3%84'
+    # Once for the downloading...
+    @wayback_machine_downloader.download_files
+    # ... and once for the "is already present"
+    @wayback_machine_downloader.download_files
+  end
 
 end