diff options
| -rw-r--r-- | activesupport/lib/active_support/core_ext/class/subclasses.rb | 1 | ||||
| -rw-r--r-- | activesupport/test/core_ext/class_test.rb | 10 |
2 files changed, 11 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/class/subclasses.rb b/activesupport/lib/active_support/core_ext/class/subclasses.rb index 10a7c787f6..62397d9508 100644 --- a/activesupport/lib/active_support/core_ext/class/subclasses.rb +++ b/activesupport/lib/active_support/core_ext/class/subclasses.rb @@ -22,6 +22,7 @@ class Class def descendants descendants = [] ObjectSpace.each_object(singleton_class) do |k| + next if k.singleton_class? descendants.unshift k unless k == self end descendants diff --git a/activesupport/test/core_ext/class_test.rb b/activesupport/test/core_ext/class_test.rb index a9c44907cc..a7905196ae 100644 --- a/activesupport/test/core_ext/class_test.rb +++ b/activesupport/test/core_ext/class_test.rb @@ -25,4 +25,14 @@ class ClassTest < ActiveSupport::TestCase assert_equal [Baz], Bar.subclasses assert_equal [], Baz.subclasses end + + def test_descendants_excludes_singleton_classes + klass = Parent.new.singleton_class + refute Parent.descendants.include?(klass), "descendants should not include singleton classes" + end + + def test_subclasses_excludes_singleton_classes + klass = Parent.new.singleton_class + refute Parent.subclasses.include?(klass), "subclasses should not include singleton classes" + end end |