From 7432c9226e67de1b9a334a097446ea8c12350dbe Mon Sep 17 00:00:00 2001
From: Edgars Beigarts <edgars.beigarts@gmail.com>
Date: Thu, 14 Dec 2017 12:37:51 +0200
Subject: Use weak references in descendants tracker
It allows anonymous subclasses to be garbage collected.
---
activesupport/test/descendants_tracker_test_cases.rb | 9 +++++++++
1 file changed, 9 insertions(+)
(limited to 'activesupport/test')
diff --git a/activesupport/test/descendants_tracker_test_cases.rb b/activesupport/test/descendants_tracker_test_cases.rb
index 2c94c3c56c..f8752688d2 100644
--- a/activesupport/test/descendants_tracker_test_cases.rb
+++ b/activesupport/test/descendants_tracker_test_cases.rb
@@ -27,6 +27,15 @@ module DescendantsTrackerTestCases
assert_equal_sets [], Child2.descendants
end
+ def test_descendants_with_garbage_collected_classes
+ 1.times do
+ child_klass = Class.new(Parent)
+ assert_equal_sets [Child1, Grandchild1, Grandchild2, Child2, child_klass], Parent.descendants
+ end
+ GC.start
+ assert_equal_sets [Child1, Grandchild1, Grandchild2, Child2], Parent.descendants
+ end
+
def test_direct_descendants
assert_equal_sets [Child1, Child2], Parent.direct_descendants
assert_equal_sets [Grandchild1, Grandchild2], Child1.direct_descendants
--
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