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from datetime import timedelta
import pytest
from .env import H2Conf, H2TestEnv
from pyhttpd.curl import CurlPiper
@pytest.mark.skipif(condition=H2TestEnv.is_unsupported, reason="mod_http2 not supported here")
class TestBuffering:
@pytest.fixture(autouse=True, scope='class')
def _class_scope(self, env):
conf = H2Conf(env)
conf.add_vhost_cgi(h2proxy_self=True).install()
assert env.apache_restart() == 0
@pytest.mark.skip(reason="this test shows unreliable jitter")
def test_h2_712_01(self, env):
# test gRPC like requests that do not end, but give answers, see #207
#
# this test works like this:
# - use curl to POST data to the server /h2test/echo
# - feed curl the data in chunks, wait a bit between chunks
# - since some buffering on curl's stdout to Python is involved,
# we will see the response data only at the end.
# - therefore, we enable tracing with timestamps in curl on stderr
# and see when the response chunks arrive
# - if the server sends the incoming data chunks back right away,
# as it should, we see receiving timestamps separated roughly by the
# wait time between sends.
#
url = env.mkurl("https", "cgi", "/h2test/echo")
base_chunk = "0123456789"
chunks = ["chunk-{0:03d}-{1}\n".format(i, base_chunk) for i in range(5)]
stutter = timedelta(seconds=0.2) # this is short, but works on my machine (tm)
piper = CurlPiper(env=env, url=url)
piper.stutter_check(chunks, stutter)
def test_h2_712_02(self, env):
# same as 712_01 but via mod_proxy_http2
#
url = env.mkurl("https", "cgi", "/h2proxy/h2test/echo")
base_chunk = "0123456789"
chunks = ["chunk-{0:03d}-{1}\n".format(i, base_chunk) for i in range(3)]
stutter = timedelta(seconds=0.4) # need a bit more delay since we have the extra connection
piper = CurlPiper(env=env, url=url)
piper.stutter_check(chunks, stutter)
def test_h2_712_03(self, env):
# same as 712_02 but with smaller chunks
#
url = env.mkurl("https", "cgi", "/h2proxy/h2test/echo")
base_chunk = "0"
chunks = ["ck{0}-{1}\n".format(i, base_chunk) for i in range(3)]
stutter = timedelta(seconds=0.4) # need a bit more delay since we have the extra connection
piper = CurlPiper(env=env, url=url)
piper.stutter_check(chunks, stutter)
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