test_fresh: do not delete non-existent domain

This test bug was exposed due to using an old
MogileFS-Server without
commit d0ee2a27253ade4b50ef5b91471f4f520a67bf8c
("Work with DBD::SQLite's latest lock errors")

1 files changed, 1 insertions, 1 deletions

diff --git a/test/test_fresh.rb b/test/test_fresh.rb
index 9499db5..ff7bae6 100644
--- a/test/test_fresh.rb
+++ b/test/test_fresh.rb
@@ -88,7 +88,7 @@ class TestMogFresh < Test::Unit::TestCase
     end
     test_new_file_info(:md5)
   ensure
-    @admin.delete_class @domain, "check"
+    @admin.delete_class(@domain, "check") if @domain
   end
 
   def test_create_open_close_opts