Add tests for cme NULL crash

Tests for GitHub PR #5122. Originally in GitHub PR #5121.

1 files changed, 7 insertions, 1 deletions

diff --git a/test/ruby/test_super.rb b/test/ruby/test_super.rb
index 3afde9b0e3..6a575b88c5 100644
--- a/test/ruby/test_super.rb
+++ b/test/ruby/test_super.rb
@@ -549,7 +549,13 @@ class TestSuper < Test::Unit::TestCase
 
     o = b.new
     o.danger!
-    2.times { o.missing rescue NoMethodError }
+    begin
+      original_gc_stress = GC.stress
+      GC.stress = true
+      2.times { o.missing rescue NoMethodError }
+    ensure
+      GC.stress = original_gc_stress
+    end
   end
 
   def test_from_eval