Don't do introspection queries during locking tests [Michael Schoen]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@5689 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activerecord/test/locking_test.rb

@@ -86,9 +86,12 @@ def test_lock_with_custom_column_without_default_sets_version_to_zero
 unless current_adapter?(:SQLServerAdapter)
   class PessimisticLockingTest < Test::Unit::TestCase
     self.use_transactional_fixtures = false
-    fixtures :people
+    fixtures :people, :readers
 
     def setup
+      # Avoid introspection queries during tests.
+      Person.columns; Reader.columns
+
       @allow_concurrency = ActiveRecord::Base.allow_concurrency
       ActiveRecord::Base.allow_concurrency = true
     end
@@ -123,7 +126,7 @@ def test_sane_find_with_scoped_lock
       def test_eager_find_with_lock
         assert_nothing_raised do
           Person.transaction do
-            Reader.find 1, :include => :person, :lock => true
+            Person.find 1, :include => :readers, :lock => true
           end
         end
       end