1 files changed, 2 insertions, 2 deletions
diff --git a/activerecord/test/cases/attribute_methods/read_test.rb b/activerecord/test/cases/attribute_methods/read_test.rb
index 8d8ff2f952..6dbebf4b6f 100644
--- a/activerecord/test/cases/attribute_methods/read_test.rb
+++ b/activerecord/test/cases/attribute_methods/read_test.rb
@@ -56,9 +56,9 @@ module ActiveRecord
       end
 
       def test_attribute_methods_generated?
-        assert(!@klass.attribute_methods_generated?, 'attribute_methods_generated?')
+        assert_not @klass.method_defined?(:one)
         @klass.define_attribute_methods
-        assert(@klass.attribute_methods_generated?, 'attribute_methods_generated?')
+        assert @klass.method_defined?(:one)
       end
     end
   end