3 files changed, 36 insertions, 0 deletions
diff --git a/activerecord/test/cases/attribute_methods/read_test.rb b/activerecord/test/cases/attribute_methods/read_test.rb
index 0df9ffc0c5..375c207d20 100644
--- a/activerecord/test/cases/attribute_methods/read_test.rb
+++ b/activerecord/test/cases/attribute_methods/read_test.rb
@@ -18,6 +18,7 @@ module ActiveRecord
           def self.active_record_super; Base; end
           def self.base_class; self; end
 
+          include ActiveRecord::Configuration
           include ActiveRecord::AttributeMethods
 
           def self.column_names
diff --git a/activerecord/test/cases/configuration_test.rb b/activerecord/test/cases/configuration_test.rb
new file mode 100644
index 0000000000..872f1fc33b
--- /dev/null
+++ b/activerecord/test/cases/configuration_test.rb
@@ -0,0 +1,26 @@
+require 'cases/helper'
+
+class ConfigurationTest < ActiveRecord::TestCase
+  def test_configuration
+    @klass = Class.new do
+      include ActiveRecord::Configuration
+    end
+
+    ActiveRecord::Configuration.define :omg
+
+    ActiveRecord::Configuration.omg = "omg"
+
+    assert_equal "omg", @klass.new.omg
+    assert !@klass.new.respond_to?(:omg=)
+    assert_equal "omg", @klass.omg
+
+    @klass.omg = "wtf"
+
+    assert_equal "wtf", @klass.omg
+    assert_equal "wtf", @klass.new.omg
+  ensure
+    ActiveRecord::Configuration.send(:undef_method, :omg)
+    ActiveRecord::Configuration::ClassMethods.send(:undef_method, :omg)
+    ActiveRecord::Configuration::ClassMethods.send(:undef_method, :omg=)
+  end
+end
diff --git a/activerecord/test/cases/inclusion_test.rb b/activerecord/test/cases/inclusion_test.rb
index d092e748e8..ee32a71ca9 100644
--- a/activerecord/test/cases/inclusion_test.rb
+++ b/activerecord/test/cases/inclusion_test.rb
@@ -41,4 +41,13 @@ class InclusionUnitTest < ActiveRecord::TestCase
   def test_connection_handler
     assert_equal ActiveRecord::Base.connection_handler, @klass.connection_handler
   end
+
+  def test_mirrored_configuration
+    ActiveRecord::Base.time_zone_aware_attributes = true
+    assert @klass.time_zone_aware_attributes
+    ActiveRecord::Base.time_zone_aware_attributes = false
+    assert !@klass.time_zone_aware_attributes
+  ensure
+    ActiveRecord::Base.time_zone_aware_attributes = false
+  end
 end