test_cgi_util.rb: test_cgi_unescapeHTML_invalid

* test/cgi/test_cgi_util.rb (test_cgi_unescapeHTML_invalid): test
  for invalid escaped HTML, borrowed from rubyspec.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53823 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 0 deletions

diff --git a/test/cgi/test_cgi_util.rb b/test/cgi/test_cgi_util.rb
index f67817fce6..62679b9c82 100644
--- a/test/cgi/test_cgi_util.rb
+++ b/test/cgi/test_cgi_util.rb
@@ -98,6 +98,10 @@ class CGIUtilTest < Test::Unit::TestCase
     assert_equal("'&\"><", CGI::unescapeHTML("&#39;&amp;&quot;&gt;&lt;"))
   end
 
+  def test_cgi_unescapeHTML_invalid
+    assert_equal('&<&amp>&quot&abcdefghijklmn', CGI::unescapeHTML('&&lt;&amp&gt;&quot&abcdefghijklmn'))
+  end
+
   Encoding.list.each do |enc|
     begin
       escaped = "&#39;&amp;&quot;&gt;&lt;".encode(enc)