1 files changed, 4 insertions, 0 deletions
diff --git a/lib/test/unit/collector/dir.rb b/lib/test/unit/collector/dir.rb
index b5c935519e..7a9bde891b 100644
--- a/lib/test/unit/collector/dir.rb
+++ b/lib/test/unit/collector/dir.rb
@@ -67,12 +67,16 @@ module Test
         end
 
         def collect_file(name, suites, already_gathered)
+          loadpath = $:.dup
+          $:.unshift(File.dirname(name))
           if(@req)
             @req.require(name)
           else
             require(name)
           end
           find_test_cases(already_gathered).each{|t| add_suite(suites, t.suite)}
+        ensure
+          $:.replace(loadpath)
         end
       end
     end