Quell warnings. Closes #5245.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4392 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 4 insertions, 3 deletions

diff --git a/activerecord/lib/active_record/fixtures.rb b/activerecord/lib/active_record/fixtures.rb
index a1033c40e4..4e4102d17a 100755
--- a/activerecord/lib/active_record/fixtures.rb
+++ b/activerecord/lib/active_record/fixtures.rb
@@ -490,12 +490,13 @@ module Test #:nodoc:
       end
 
       def self.uses_transaction(*methods)
-        @uses_transaction ||= []
-        @uses_transaction.concat methods.map { |m| m.to_s }
+        @uses_transaction = [] unless defined?(@uses_transaction)
+        @uses_transaction.concat methods.map(&:to_s)
       end
 
       def self.uses_transaction?(method)
-        @uses_transaction && @uses_transaction.include?(method.to_s)
+        @uses_transaction = [] unless defined?(@uses_transaction)
+        @uses_transaction.include?(method.to_s)
       end
 
       def use_transactional_fixtures?