t40_html.py: Test for multiple encoding levels (bug #61)

Author: ccbenny

tests/t40_html.py

@@ -21,3 +21,13 @@ def test_3(self):
         output =   'a &#ZZ &#; &#'
         common.request('html..')
         common.validate(input, output)
+    # Multiple encoding levels should be decodable.  Bug #66.
+    def test_4(self):
+        input = '(Parenthetical)'
+        intermediate1 = '(Parenthetical)'
+        intermediate2 = '(Parenthetical)'
+        output = '(Parenthetical)'
+        common.request('html..')
+        common.validate(input, intermediate1)
+        common.validate(intermediate1, intermediate2)
+        common.validate(intermediate2, output)