Fix ObjectSpace.trace_object_allocations_stop to not raise if the tracepoint were not initialized

1 files changed, 9 insertions, 0 deletions

diff --git a/test/objspace/test_objspace.rb b/test/objspace/test_objspace.rb
index e47917030a..40f1c73a51 100644
--- a/test/objspace/test_objspace.rb
+++ b/test/objspace/test_objspace.rb
@@ -164,6 +164,15 @@ class TestObjSpace < Test::Unit::TestCase
     end;
   end
 
+  def test_trace_object_allocations_stop_first
+    assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}")
+    begin;
+      require "objspace"
+      # Make sure stoping before the tracepoints are initialized doesn't raise. See [Bug #17020]
+      ObjectSpace.trace_object_allocations_stop
+    end;
+  end
+
   def test_trace_object_allocations
     ObjectSpace.trace_object_allocations_clear # clear object_table to get rid of erroneous detection for c0
     Class.name