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# frozen_string_literal: true
# rubocop:disable Lint/UselessAssignment
require "test_helper"
class TestNode < Minitest::Test
# These tests are somewhat fragile. It would be better to allocate lots
# of memory after a GC run to make sure that potentially freed memory
# isn't valid by accident.
def test_drop_parent_reference
doc = CommonMarker.render_doc("Hi *there*")
text = doc.first_child.last_child.first_child
doc = nil
GC.start
# Test that doc has not been freed.
assert_equal("there", text.string_content)
end
def test_drop_child_reference
doc = CommonMarker.render_doc("Hi *there*")
text = doc.first_child.last_child.first_child
text = nil
GC.start
# Test that the cached child object is still valid.
text = doc.first_child.last_child.first_child
assert_equal("there", text.string_content)
end
def test_remove_parent
doc = CommonMarker.render_doc("Hi *there*")
para = doc.first_child
para.delete
doc = nil
para = nil
# TODO: Test that the `para` node was actually freed after unlinking.
end
def test_add_parent
doc = Node.new(:document)
hrule = Node.new(:hrule)
doc.append_child(hrule)
# If the hrule node was erroneously freed, this would result in a double
# free.
end
end
# rubocop:enable Lint/UselessAssignment
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