http2: polish things around POST

- added test cases for various code paths
- fixed handling of blocked write when stream had
  been closed inbetween attempts
- re-enabled DEBUGASSERT on send with smaller data size

- in debug builds, environment variables can be set to simulate a slow
  network when sending data. cf-socket.c and vquic.c support
  * CURL_DBG_SOCK_WBLOCK: percentage of send() calls that should be
    answered with a EAGAIN. TCP/UNIX sockets.
    This is chosen randomly.
  * CURL_DBG_SOCK_WPARTIAL: percentage of data that shall be written
    to the network. TCP/UNIX sockets.
    Example: 80 means a send with 1000 bytes would only send 800
    This is applied to every send.
  * CURL_DBG_QUIC_WBLOCK: percentage of send() calls that should be
    answered with EAGAIN. QUIC only.
    This is chosen randomly.

Closes #11756
This commit is contained in:
Stefan Eissing 2023-08-29 13:08:35 +02:00 committed by Daniel Stenberg
parent c9260cf9fe
commit 331b89a319
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23 changed files with 897 additions and 164 deletions

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@ -139,7 +139,6 @@ class TestProxy:
url = f'https://localhost:{env.https_port}/data.json'
xargs = curl.get_proxy_args(proxys=False, tunnel=True)
r = curl.http_download(urls=[url], alpn_proto=proto, with_stats=True,
with_headers=True,
extra_args=xargs)
r.check_response(count=1, http_status=200,
protocol='HTTP/2' if proto == 'h2' else 'HTTP/1.1')
@ -157,7 +156,7 @@ class TestProxy:
url = f'https://localhost:{env.https_port}/data.json?[0-0]'
xargs = curl.get_proxy_args(tunnel=True, proto=tunnel)
r = curl.http_download(urls=[url], alpn_proto=proto, with_stats=True,
with_headers=True, extra_args=xargs)
extra_args=xargs)
r.check_response(count=1, http_status=200,
protocol='HTTP/2' if proto == 'h2' else 'HTTP/1.1')
assert self.get_tunnel_proto_used(r) == 'HTTP/2' \
@ -185,7 +184,7 @@ class TestProxy:
url = f'https://localhost:{env.https_port}/{fname}?[0-{count-1}]'
xargs = curl.get_proxy_args(tunnel=True, proto=tunnel)
r = curl.http_download(urls=[url], alpn_proto=proto, with_stats=True,
with_headers=True, extra_args=xargs)
extra_args=xargs)
r.check_response(count=count, http_status=200,
protocol='HTTP/2' if proto == 'h2' else 'HTTP/1.1')
assert self.get_tunnel_proto_used(r) == 'HTTP/2' \
@ -237,7 +236,7 @@ class TestProxy:
url2 = f'http://localhost:{env.http_port}/data.json'
xargs = curl.get_proxy_args(tunnel=True, proto=tunnel)
r = curl.http_download(urls=[url1, url2], alpn_proto='http/1.1', with_stats=True,
with_headers=True, extra_args=xargs)
extra_args=xargs)
r.check_response(count=2, http_status=200)
assert self.get_tunnel_proto_used(r) == 'HTTP/2' \
if tunnel == 'h2' else 'HTTP/1.1'