def test_can_decode_a_story(self, story):
d = Decoder()
# We test against draft 9 of the HPACK spec.
if story['draft'] != 9:
skip("We test against draft 9, not draft %d" % story['draft'])
for case in story['cases']:
try:
d.header_table_size = case['header_table_size']
except KeyError:
pass
decoded_headers = d.decode(unhexlify(case['wire']))
# The correct headers are a list of dicts, which is annoying.
correct_headers = [
(item[0], item[1])
for header in case['headers']
for item in header.items()
]
correct_headers = correct_headers
assert correct_headers == decoded_headers
assert all(
isinstance(header, HeaderTuple) for header in decoded_headers
)
def test_resizing_header_table(self):
# We need to decode a substantial number of headers, to populate the
# header table. This string isn't magic: it's the output from the
# equivalent test for the Encoder.
d = Decoder()
data = (
b'\x82\x87D\x87a\x07\xa4\xacV4\xcfA\x8c\xf1\xe3\xc2\xe5\xf2:k\xa0'
b'\xab\x90\xf4\xff@\x88%\xa8I\xe9[\xa9}\x7f\x89%\xa8I\xe9[\xb8\xe8'
b'\xb4\xbfz\xbc\xd0\x7ff\xa2\x81\xb0\xda\xe0S\xfa\xd02\x1a\xa4\x9d'
b'\x13\xfd\xa9\x92\xa4\x96\x854\x0c\x8aj\xdc\xa7\xe2\x81\x02\xef}'
b'\xa9g{\x81qp\x7fjb):\x9d\x81\x00 \x00@\x150\x9a\xc2\xca\x7f,\x05'
b'\xc5\xc1S\xb0I|\xa5\x89\xd3M\x1fC\xae\xba\x0cA\xa4\xc7\xa9\x8f3'
b'\xa6\x9a?\xdf\x9ah\xfa\x1du\xd0b\r&=Ly\xa6\x8f\xbe\xd0\x01w\xfe'
b'\xbeX\xf9\xfb\xed\x00\x17{@\x8a\xfc[=\xbdF\x81\xad\xbc\xa8O\x84y'
b'\xe7\xde\x7f'
)
d.decode(data)
# Resize the header table to a size so small that nothing can be in it.
d.header_table_size = 40
assert len(d.header_table.dynamic_entries) == 0
