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import pytest
from .ngtcp2test import ExampleClient
from .ngtcp2test import ExampleServer
from .ngtcp2test import Env
@pytest.mark.skipif(condition=len(Env.get_crypto_libs()) == 0,
reason="no crypto lib examples configured")
class TestEarlyData:
@pytest.fixture(scope='class', params=Env.get_crypto_libs())
def server(self, env, request) -> ExampleServer:
s = ExampleServer(env=env, crypto_lib=request.param)
assert s.exists(), f'server not found: {s.path}'
assert s.start()
yield s
s.stop()
@pytest.fixture(scope='function', params=Env.get_crypto_libs())
def client(self, env, request) -> ExampleClient:
client = ExampleClient(env=env, crypto_lib=request.param)
assert client.exists()
yield client
def test_03_01(self, env: Env, server, client):
# run GET with sessions, cleared first, without a session, early
# data will not even be attempted
client.clear_session()
edata = 'This is the early data. It is not much.'
cr = client.http_get(server, url=f'https://{env.example_domain}/',
use_session=True, data=edata)
assert cr.returncode == 0
cr.assert_non_resume_handshake()
# resume session, early data is sent and accepted
cr = client.http_get(server, url=f'https://{env.example_domain}/',
use_session=True, data=edata)
assert cr.returncode == 0
cr.assert_resume_handshake()
assert not cr.early_data_rejected
# restart the server, resume, early data is attempted but will not work
server.restart()
cr = client.http_get(server, url=f'https://{env.example_domain}/',
use_session=True, data=edata)
assert cr.returncode == 0
assert cr.early_data_rejected
cr.assert_non_resume_handshake()
# restart again, sent data, but not as early data
server.restart()
cr = client.http_get(server, url=f'https://{env.example_domain}/',
use_session=True, data=edata,
extra_args=['--disable-early-data'])
assert cr.returncode == 0
# we see no rejection, since it was not used
assert not cr.early_data_rejected
cr.assert_non_resume_handshake()
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