Add test for #150

Test that Ruby objects created in C do not get garbage collected.
rubys · Nov 21, 2020 · 55d7b96 · 55d7b96
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -14,6 +14,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Deprecated
 ### Removed
 ### Fixed
+- Fixed crash where Ruby objects constructed in C can be garbage collected.
 ### Security
 
 ## [2.0.2] - 2019-11-19

diff --git a/test/test_nokogumbo.rb b/test/test_nokogumbo.rb
@@ -1,5 +1,12 @@
 # encoding: utf-8
 require 'nokogumbo'
+
+# Make sure that Ruby objects constructed in C are treated as GC roots.
+# See: https://github.com/rubys/nokogumbo/pull/150
+if GC.respond_to?(:verify_compaction_references)
+  GC.verify_compaction_references(toward: :empty, double_heap: true)
+end
+
 require 'minitest/autorun'
 
 class TestNokogumbo < Minitest::Test