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-rw-r--r--test/cgi/test_cgi_util.rb21
1 files changed, 21 insertions, 0 deletions
diff --git a/test/cgi/test_cgi_util.rb b/test/cgi/test_cgi_util.rb
index f2f5575..786e6f1 100644
--- a/test/cgi/test_cgi_util.rb
+++ b/test/cgi/test_cgi_util.rb
@@ -197,4 +197,25 @@ class CGIUtilTest < Test::Unit::TestCase
assert_equal('&lt;BR&gt;<A HREF="url"></A>', unescape_element(escapeHTML('<BR><A HREF="url"></A>'), "A", "IMG"))
assert_equal('&lt;BR&gt;<A HREF="url"></A>', unescape_element(escapeHTML('<BR><A HREF="url"></A>'), ["A", "IMG"]))
end
+
+ def test_escape_string_subclass
+ sc = Class.new(String).freeze
+ str = sc.new('>')
+ msg = '[ruby-core:86847] [Bug #14732]'
+ assert_not_instance_of String, str
+
+ html = escapeHTML(str)
+ assert_instance_of sc, html, msg
+ assert_equal '&gt;', html
+ orig = unescapeHTML(html)
+ assert_instance_of sc, orig, msg
+ assert_equal '>', orig
+
+ url = escape(str)
+ assert_instance_of sc, url, msg
+ assert_equal '%3E', url
+ orig = unescape(url)
+ assert_instance_of sc, orig, msg
+ assert_equal '>', orig
+ end
end