1 files changed, 11 insertions, 0 deletions
diff --git a/test/ruby/test_rubyoptions.rb b/test/ruby/test_rubyoptions.rb
index 45732d627e..459e316016 100644
--- a/test/ruby/test_rubyoptions.rb
+++ b/test/ruby/test_rubyoptions.rb
@@ -461,4 +461,15 @@ class TestRubyOptions < Test::Unit::TestCase
     }
     assert_equal("\"zzz\\n\"\n", result, '[ruby-core:30910]')
   end
+
+  def test_unmatching_glob
+    bug3851 = '[ruby-core:32478]'
+    a = "a[foo"
+    Dir.mktmpdir do |dir|
+      open(File.join(dir, a), "w") {|f| f.puts("p 42")}
+      assert_in_out_err(["-C", dir, a], "", ["42"], [], bug3851)
+      File.unlink(File.join(dir, a))
+      assert_in_out_err(["-C", dir, a], "", [], /LoadError/, bug3851)
+    end
+  end
 end