Test httptools non-ascii header parsing

gistfile1.txt

diff --git a/tests/test_parser.py b/tests/test_parser.py
index 86584c3..74ad0a8 100644
--- a/tests/test_parser.py
+++ b/tests/test_parser.py
@@ -16,6 +16,32 @@ Connection: close

 '''.replace(b'\n', b'\r\n')

+RESPONSE1_HEAD_NON_ASCII_KEY = b'''HTTP/1.1 200 OK
+Date: Mon, 23 May 2005 22:38:34 GMT
+Server: Apache/1.3.3.7 (Unix) (Red-Hat/Linux)
+Last-Modified: Wed, 08 Jan 2003 23:11:55 GMT
+ETag: "3f80f-1b6-3e1cb03b"
+Content-Type: text/html; charset=UTF-8
+Content-Length: 130
+Accept-Ranges: bytes
+X-M\xe9tadata: some-value
+Connection: close
+
+'''.replace(b'\n', b'\r\n')
+
+RESPONSE1_HEAD_NON_ASCII_VAL = b'''HTTP/1.1 200 OK
+Date: Mon, 23 May 2005 22:38:34 GMT
+Server: Apache/1.3.3.7 (Unix) (Red-Hat/Linux)
+Last-Modified: Wed, 08 Jan 2003 23:11:55 GMT
+ETag: "3f80f-1b6-3e1cb03b"
+Content-Type: text/html; charset=UTF-8
+Content-Length: 130
+Accept-Ranges: bytes
+X-Meadata: som\xe9-value
+Connection: close
+
+'''.replace(b'\n', b'\r\n')
+
 RESPONSE1_SPACES_IN_HEAD = b'''HTTP/1.1 200 OK
 Date: Mon, 23 May 2005 22:38:34 GMT
 Server: Apache/1.3.3.7
@@ -121,6 +147,42 @@ class TestResponseParser(unittest.TestCase):
                 'Expected HTTP/'):
             p.feed_data(b'12123123')

+    def test_parser_response_non_ascii(self):
+        m = mock.Mock()
+
+        headers = {}
+        m.on_header.side_effect = headers.__setitem__
+        p = httptools.HttpResponseParser(m)
+
+        # no non-ascii header keys
+        with self.assertRaisesRegex(
+            httptools.HttpParserError,
+            "Invalid header token",
+        ):
+            p.feed_data(memoryview(RESPONSE1_HEAD_NON_ASCII_KEY))
+
+        # no non-ascii header values
+        with self.assertRaisesRegex(
+            httptools.HttpParserError,
+            "Invalid header token",
+        ):
+            p.feed_data(memoryview(RESPONSE1_HEAD_NON_ASCII_VAL))
+
+        # dangerous leniencies doesn't help
+        p.set_dangerous_leniencies(lenient_headers=True)
+
+        with self.assertRaisesRegex(
+            httptools.HttpParserError,
+            "Invalid header token",
+        ):
+            p.feed_data(memoryview(RESPONSE1_HEAD_NON_ASCII_KEY))
+
+        with self.assertRaisesRegex(
+            httptools.HttpParserError,
+            "Invalid header token",
+        ):
+            p.feed_data(memoryview(RESPONSE1_HEAD_NON_ASCII_VAL))
+
     def test_parser_response_leninent_headers_1(self):
         m = mock.Mock()