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# frozen_string_literal: true
require "abstract_unit"
require "active_support/descendants_tracker"
require "descendants_tracker_test_cases"
class DescendantsTrackerWithoutAutoloadingTest < ActiveSupport::TestCase
include DescendantsTrackerTestCases
# Regression test for #8422. https://github.com/rails/rails/issues/8442
def test_clear_without_autoloaded_singleton_parent
mark_as_autoloaded do
parent_instance = Parent.new
parent_instance.singleton_class.descendants
ActiveSupport::DescendantsTracker.clear
assert !ActiveSupport::DescendantsTracker.class_variable_get(:@@direct_descendants).key?(parent_instance.singleton_class)
end
end
end
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