1 files changed, 9 insertions, 0 deletions
diff --git a/test/ruby/test_object.rb b/test/ruby/test_object.rb
index 28e07162d7..0d31eb3ff0 100644
--- a/test/ruby/test_object.rb
+++ b/test/ruby/test_object.rb
@@ -946,4 +946,13 @@ class TestObject < Test::Unit::TestCase
       end
     EOS
   end
+
+  def test_matcher
+    assert_warning(/deprecated Object#=~ is called on Object/) do
+      assert_equal(Object.new =~ 42, nil)
+    end
+    assert_warning(/deprecated Object#=~ is called on Array/) do
+      assert_equal([] =~ 42, nil)
+    end
+  end
 end