1 files changed, 11 insertions, 0 deletions
diff --git a/test/ruby/test_optimization.rb b/test/ruby/test_optimization.rb
index 1c50044f7f..3573d1267f 100644
--- a/test/ruby/test_optimization.rb
+++ b/test/ruby/test_optimization.rb
@@ -362,4 +362,15 @@ class TestRubyOptimization < Test::Unit::TestCase
       assert_redefine_method(k, '===', "assert_equal(#{v.inspect} === 0, 0)")
     end
   end
+
+  def test_opt_case_dispatch_inf
+    inf = 1.0/0.0
+    result = case inf
+             when 1 then 1
+             when 0 then 0
+             else
+               inf.to_i rescue nil
+             end
+    assert_nil result, '[ruby-dev:49423] [Bug #11804]'
+  end
 end