annotate tests/test-http-bad-server.t @ 48670:6d2ddea0721a stable

stream-clone: filter possible missing requirements using all supported one

The `supportedformat` requirements is missing some important requirements and it
seems better to filter out with all requirements we know, not just an
"arbitrary" subset.

The `supportedformat` set is lacking some important requirements (for example
`revlog-compression-zstd`). This is getting fixed on default (for Mercurial 6.1)

However, fixing that in 6.1 means the stream requirements sent over the wire
will contains more items. And if we don't apply this fix on older version, they
might end up complaining about lacking support for feature they actually support
for years.

This patch does not fix the deeper problem (advertised stream requirement
lacking some of them), but focus on the trivial part : Lets use the full set of
supported requirement for looking for unsupported ones.

This patch should be simple to backport to older version of Mercurial and
packager should be encouraged to do so.

This is a graft of d9017df70135 from default.

Differential Revision: https://phab.mercurial-scm.org/D12091

#require serve zstd

Client version is embedded in HTTP request and is effectively dynamic. Pin the
version so behavior is deterministic.

  $ cat > fakeversion.py << EOF
  > from mercurial import util
  > util.version = lambda: b'4.2'
  > EOF

  $ cat >> $HGRCPATH << EOF
  > [extensions]
  > fakeversion = `pwd`/fakeversion.py
  > [format]
  > sparse-revlog = no
  > use-persistent-nodemap = no
  > [devel]
  > legacy.exchange = phases
  > [server]
  > concurrent-push-mode = strict
  > EOF

  $ hg init server0
  $ cd server0
  $ touch foo
  $ hg -q commit -A -m initial

Also disable compression because zstd is optional and causes output to vary
and because debugging partial responses is hard when compression is involved

  $ cat > .hg/hgrc << EOF
  > [extensions]
  > badserver = $TESTDIR/badserverext.py
  > [server]
  > compressionengines = none
  > EOF

Failure to accept() socket should result in connection related error message

  $ hg serve --config badserver.closebeforeaccept=true -p $HGPORT -d --pid-file=hg.pid
  $ cat hg.pid > $DAEMON_PIDS

  $ hg clone http://localhost:$HGPORT/ clone
  abort: error: (\$ECONNRESET\$|\$EADDRNOTAVAIL\$) (re)
  [100]

(The server exits on its own, but there is a race between that and starting a new server.
So ensure the process is dead.)

  $ killdaemons.py $DAEMON_PIDS

Failure immediately after accept() should yield connection related error message

  $ hg serve --config badserver.closeafteraccept=true -p $HGPORT -d --pid-file=hg.pid
  $ cat hg.pid > $DAEMON_PIDS

TODO: this usually outputs good results, but sometimes emits abort:
error: '' on FreeBSD and OS X.
What we ideally want are:

abort: error: $ECONNRESET$

The flakiness in this output was observable easily with
--runs-per-test=20 on macOS 10.12 during the freeze for 4.2.
  $ hg clone http://localhost:$HGPORT/ clone
  abort: error: * (glob)
  [100]

  $ killdaemons.py $DAEMON_PIDS

Failure to read all bytes in initial HTTP request should yield connection related error message

  $ hg serve --config badserver.closeafterrecvbytes=1 -p $HGPORT -d --pid-file=hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS

  $ hg clone http://localhost:$HGPORT/ clone
  abort: error: bad HTTP status line: * (glob)
  [100]

  $ killdaemons.py $DAEMON_PIDS

  $ cat error.log
  readline(1 from 65537) -> (1) G
  read limit reached; closing socket

  $ rm -f error.log

Same failure, but server reads full HTTP request line

  $ hg serve --config badserver.closeafterrecvbytes=40 -p $HGPORT -d --pid-file=hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS
  $ hg clone http://localhost:$HGPORT/ clone
  abort: error: bad HTTP status line: * (glob)
  [100]

  $ killdaemons.py $DAEMON_PIDS

  $ cat error.log
  readline(40 from 65537) -> (33) GET /?cmd=capabilities HTTP/1.1\r\n
  readline(7 from *) -> (7) Accept- (glob)
  read limit reached; closing socket

  $ rm -f error.log

Failure on subsequent HTTP request on the same socket (cmd?batch)

  $ hg serve --config badserver.closeafterrecvbytes=210,223 -p $HGPORT -d --pid-file=hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS
  $ hg clone http://localhost:$HGPORT/ clone
  abort: error: bad HTTP status line: * (glob)
  [100]

  $ killdaemons.py $DAEMON_PIDS

  $ cat error.log
  readline(210 from 65537) -> (33) GET /?cmd=capabilities HTTP/1.1\r\n
  readline(177 from *) -> (27) Accept-Encoding: identity\r\n (glob)
  readline(150 from *) -> (35) accept: application/mercurial-0.1\r\n (glob)
  readline(115 from *) -> (*) host: localhost:$HGPORT\r\n (glob)
  readline(* from *) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
  readline(* from *) -> (2) \r\n (glob)
  sendall(160) -> HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 431\r\n\r\n (py36 !)
  sendall(431) -> batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (py36 !)
  write(160) -> HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 431\r\n\r\n (py3 no-py36 !)
  write(431) -> batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (py3 no-py36 !)
  write(36) -> HTTP/1.1 200 Script output follows\r\n (no-py3 !)
  write(23) -> Server: badhttpserver\r\n (no-py3 !)
  write(37) -> Date: $HTTP_DATE$\r\n (no-py3 !)
  write(41) -> Content-Type: application/mercurial-0.1\r\n (no-py3 !)
  write(21) -> Content-Length: 431\r\n (no-py3 !)
  write(2) -> \r\n (no-py3 !)
  write(431) -> batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (no-py3 !)
  readline(4? from 65537) -> (26) GET /?cmd=batch HTTP/1.1\r\n (glob)
  readline(1? from *) -> (1?) Accept-Encoding* (glob)
  read limit reached; closing socket
  readline(223 from 65537) -> (26) GET /?cmd=batch HTTP/1.1\r\n
  readline(197 from *) -> (27) Accept-Encoding: identity\r\n (glob)
  readline(170 from *) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n (glob)
  readline(141 from *) -> (41) x-hgarg-1: cmds=heads+%3Bknown+nodes%3D\r\n (glob)
  readline(100 from *) -> (61) x-hgproto-1: 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull\r\n (glob)
  readline(39 from *) -> (35) accept: application/mercurial-0.1\r\n (glob)
  readline(4 from *) -> (4) host (glob)
  read limit reached; closing socket

  $ rm -f error.log

Failure to read getbundle HTTP request

  $ hg serve --config badserver.closeafterrecvbytes=308,317,304 -p $HGPORT -d --pid-file=hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS
  $ hg clone http://localhost:$HGPORT/ clone
  requesting all changes
  abort: error: bad HTTP status line: * (glob)
  [100]

  $ killdaemons.py $DAEMON_PIDS

  $ cat error.log
  readline(1 from -1) -> (1) x (?)
  readline(1 from -1) -> (1) x (?)
  readline(308 from 65537) -> (33) GET /?cmd=capabilities HTTP/1.1\r\n
  readline(275 from *) -> (27) Accept-Encoding: identity\r\n (glob)
  readline(248 from *) -> (35) accept: application/mercurial-0.1\r\n (glob)
  readline(213 from *) -> (*) host: localhost:$HGPORT\r\n (glob)
  readline(* from *) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
  readline(* from *) -> (2) \r\n (glob)
  sendall(160) -> HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 431\r\n\r\n (py36 !)
  sendall(431) -> batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (py36 !)
  write(160) -> HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 431\r\n\r\n (py3 no-py36 !)
  write(431) -> batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (py3 no-py36 !)
  write(36) -> HTTP/1.1 200 Script output follows\r\n (no-py3 !)
  write(23) -> Server: badhttpserver\r\n (no-py3 !)
  write(37) -> Date: $HTTP_DATE$\r\n (no-py3 !)
  write(41) -> Content-Type: application/mercurial-0.1\r\n (no-py3 !)
  write(21) -> Content-Length: 431\r\n (no-py3 !)
  write(2) -> \r\n (no-py3 !)
  write(431) -> batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (no-py3 !)
  readline(13? from 65537) -> (26) GET /?cmd=batch HTTP/1.1\r\n (glob)
  readline(1?? from *) -> (27) Accept-Encoding: identity\r\n (glob)
  readline(8? from *) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n (glob)
  readline(5? from *) -> (41) x-hgarg-1: cmds=heads+%3Bknown+nodes%3D\r\n (glob)
  readline(1? from *) -> (1?) x-hgproto-1:* (glob)
  read limit reached; closing socket
  readline(317 from 65537) -> (26) GET /?cmd=batch HTTP/1.1\r\n
  readline(291 from *) -> (27) Accept-Encoding: identity\r\n (glob)
  readline(264 from *) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n (glob)
  readline(235 from *) -> (41) x-hgarg-1: cmds=heads+%3Bknown+nodes%3D\r\n (glob)
  readline(194 from *) -> (61) x-hgproto-1: 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull\r\n (glob)
  readline(133 from *) -> (35) accept: application/mercurial-0.1\r\n (glob)
  readline(98 from *) -> (*) host: localhost:$HGPORT\r\n (glob)
  readline(* from *) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
  readline(* from *) -> (2) \r\n (glob)
  sendall(159) -> HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 42\r\n\r\n (py36 !)
  sendall(42) -> 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n; (py36 !)
  write(159) -> HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 42\r\n\r\n (py3 no-py36 !)
  write(42) -> 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n; (py3 no-py36 !)
  write(36) -> HTTP/1.1 200 Script output follows\r\n (no-py3 !)
  write(23) -> Server: badhttpserver\r\n (no-py3 !)
  write(37) -> Date: $HTTP_DATE$\r\n (no-py3 !)
  write(41) -> Content-Type: application/mercurial-0.1\r\n (no-py3 !)
  write(20) -> Content-Length: 42\r\n (no-py3 !)
  write(2) -> \r\n (no-py3 !)
  write(42) -> 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n; (no-py3 !)
  readline(* from 65537) -> (*) GET /?cmd=getbundle HTTP* (glob)
  read limit reached; closing socket
  readline(304 from 65537) -> (30) GET /?cmd=getbundle HTTP/1.1\r\n
  readline(274 from *) -> (27) Accept-Encoding: identity\r\n (glob)
  readline(247 from *) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n (glob)
  readline(218 from *) -> (218) x-hgarg-1: bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtag (glob)
  read limit reached; closing socket

  $ rm -f error.log

Now do a variation using POST to send arguments

  $ hg serve --config experimental.httppostargs=true --config badserver.closeafterrecvbytes=329,344 -p $HGPORT -d --pid-file=hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS

  $ hg clone http://localhost:$HGPORT/ clone
  abort: error: bad HTTP status line: * (glob)
  [100]

  $ killdaemons.py $DAEMON_PIDS

  $ cat error.log | "$PYTHON" $TESTDIR/filtertraceback.py
  readline(329 from 65537) -> (33) GET /?cmd=capabilities HTTP/1.1\r\n
  readline(296 from *) -> (27) Accept-Encoding: identity\r\n (glob)
  readline(269 from *) -> (35) accept: application/mercurial-0.1\r\n (glob)
  readline(234 from *) -> (2?) host: localhost:$HGPORT\r\n (glob)
  readline(* from *) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
  readline(* from *) -> (2) \r\n (glob)
  sendall(160) -> HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 444\r\n\r\n (py36 !)
  sendall(444) -> batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx httppostargs known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (py36 !)
  write(160) -> HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 444\r\n\r\n (py3 no-py36 !)
  write(444) -> batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx httppostargs known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (py3 no-py36 !)
  write(36) -> HTTP/1.1 200 Script output follows\r\n (no-py3 !)
  write(23) -> Server: badhttpserver\r\n (no-py3 !)
  write(37) -> Date: $HTTP_DATE$\r\n (no-py3 !)
  write(41) -> Content-Type: application/mercurial-0.1\r\n (no-py3 !)
  write(21) -> Content-Length: 444\r\n (no-py3 !)
  write(2) -> \r\n (no-py3 !)
  write(444) -> batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx httppostargs known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (no-py3 !)
  readline(1?? from 65537) -> (27) POST /?cmd=batch HTTP/1.1\r\n (glob)
  readline(1?? from *) -> (27) Accept-Encoding: identity\r\n (glob)
  readline(1?? from *) -> (41) content-type: application/mercurial-0.1\r\n (glob)
  readline(6? from *) -> (33) vary: X-HgArgs-Post,X-HgProto-1\r\n (glob)
  readline(3? from *) -> (19) x-hgargs-post: 28\r\n (glob)
  readline(1? from *) -> (1?) x-hgproto-1: * (glob)
  read limit reached; closing socket
  readline(344 from 65537) -> (27) POST /?cmd=batch HTTP/1.1\r\n
  readline(317 from *) -> (27) Accept-Encoding: identity\r\n (glob)
  readline(290 from *) -> (41) content-type: application/mercurial-0.1\r\n (glob)
  readline(249 from *) -> (33) vary: X-HgArgs-Post,X-HgProto-1\r\n (glob)
  readline(216 from *) -> (19) x-hgargs-post: 28\r\n (glob)
  readline(197 from *) -> (61) x-hgproto-1: 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull\r\n (glob)
  readline(136 from *) -> (35) accept: application/mercurial-0.1\r\n (glob)
  readline(101 from *) -> (20) content-length: 28\r\n (glob)
  readline(81 from *) -> (*) host: localhost:$HGPORT\r\n (glob)
  readline(* from *) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
  readline(* from *) -> (2) \r\n (glob)
  read(* from 28) -> (*) cmds=* (glob)
  read limit reached, closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=batch': (glob)
  Traceback (most recent call last):
  Exception: connection closed after receiving N bytes
  
  write(126) -> HTTP/1.1 500 Internal Server Error\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nTransfer-Encoding: chunked\r\n\r\n (py3 no-py36 !)
  write(36) -> HTTP/1.1 500 Internal Server Error\r\n (no-py3 !)

  $ rm -f error.log

Now move on to partial server responses

Server sends a single character from the HTTP response line

  $ hg serve --config badserver.closeaftersendbytes=1 -p $HGPORT -d --pid-file=hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS

  $ hg clone http://localhost:$HGPORT/ clone
  abort: error: bad HTTP status line: H
  [100]

  $ killdaemons.py $DAEMON_PIDS

  $ cat error.log | "$PYTHON" $TESTDIR/filtertraceback.py
  readline(65537) -> (33) GET /?cmd=capabilities HTTP/1.1\r\n
  readline(*) -> (27) Accept-Encoding: identity\r\n (glob)
  readline(*) -> (35) accept: application/mercurial-0.1\r\n (glob)
  readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
  readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
  readline(*) -> (2) \r\n (glob)
  sendall(1 from 160) -> (0) H (py36 !)
  write(1 from 160) -> (0) H (py3 no-py36 !)
  write(1 from 36) -> (0) H (no-py3 !)
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=capabilities': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  
  write(286) -> HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 431\r\n\r\nHTTP/1.1 500 Internal Server Error\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nTransfer-Encoding: chunked\r\n\r\n (py3 no-py36 !)
  write(36) -> HTTP/1.1 500 Internal Server Error\r\n (no-py3 !)

  $ rm -f error.log

Server sends an incomplete capabilities response body

  $ hg serve --config badserver.closeaftersendbytes=180 -p $HGPORT -d --pid-file=hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS

  $ hg clone http://localhost:$HGPORT/ clone
  abort: HTTP request error (incomplete response; expected 431 bytes got 20)
  (this may be an intermittent network failure; if the error persists, consider contacting the network or server operator)
  [255]

  $ killdaemons.py $DAEMON_PIDS

  $ cat error.log | "$PYTHON" $TESTDIR/filtertraceback.py
  readline(65537) -> (33) GET /?cmd=capabilities HTTP/1.1\r\n
  readline(*) -> (27) Accept-Encoding: identity\r\n (glob)
  readline(*) -> (35) accept: application/mercurial-0.1\r\n (glob)
  readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
  readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
  readline(*) -> (2) \r\n (glob)
  sendall(160 from 160) -> (20) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 431\r\n\r\n (py36 !)
  sendall(20 from 431) -> (0) batch branchmap bund (py36 !)
  write(160 from 160) -> (20) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 431\r\n\r\n (py3 no-py36 !)
  write(20 from 431) -> (0) batch branchmap bund (py3 no-py36 !)
  write(36 from 36) -> (144) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
  write(23 from 23) -> (121) Server: badhttpserver\r\n (no-py3 !)
  write(37 from 37) -> (84) Date: $HTTP_DATE$\r\n (no-py3 !)
  write(41 from 41) -> (43) Content-Type: application/mercurial-0.1\r\n (no-py3 !)
  write(21 from 21) -> (22) Content-Length: 431\r\n (no-py3 !)
  write(2 from 2) -> (20) \r\n (no-py3 !)
  write(20 from 431) -> (0) batch branchmap bund (no-py3 !)
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=capabilities': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  

  $ rm -f error.log

Server sends incomplete headers for batch request

  $ hg serve --config badserver.closeaftersendbytes=709 -p $HGPORT -d --pid-file=hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS

TODO this output is horrible

  $ hg clone http://localhost:$HGPORT/ clone
  abort: 'http://localhost:$HGPORT/' does not appear to be an hg repository:
  ---%<--- (applicat)
  
  ---%<---
  
  [255]

  $ killdaemons.py $DAEMON_PIDS

  $ cat error.log | "$PYTHON" $TESTDIR/filtertraceback.py
  readline(65537) -> (33) GET /?cmd=capabilities HTTP/1.1\r\n
  readline(*) -> (27) Accept-Encoding: identity\r\n (glob)
  readline(*) -> (35) accept: application/mercurial-0.1\r\n (glob)
  readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
  readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
  readline(*) -> (2) \r\n (glob)
  sendall(160 from 160) -> (549) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 431\r\n\r\n (py36 !)
  sendall(431 from 431) -> (118) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (py36 !)
  write(160 from 160) -> (568) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 431\r\n\r\n (py3 no-py36 !)
  write(431 from 431) -> (118) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (py3 no-py36 !)
  write(36 from 36) -> (673) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
  write(23 from 23) -> (650) Server: badhttpserver\r\n (no-py3 !)
  write(37 from 37) -> (613) Date: $HTTP_DATE$\r\n (no-py3 !)
  write(41 from 41) -> (572) Content-Type: application/mercurial-0.1\r\n (no-py3 !)
  write(21 from 21) -> (551) Content-Length: 431\r\n (no-py3 !)
  write(2 from 2) -> (549) \r\n (no-py3 !)
  write(431 from 431) -> (118) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (no-py3 !)
  readline(65537) -> (26) GET /?cmd=batch HTTP/1.1\r\n
  readline(*) -> (27) Accept-Encoding: identity\r\n (glob)
  readline(*) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n (glob)
  readline(*) -> (41) x-hgarg-1: cmds=heads+%3Bknown+nodes%3D\r\n (glob)
  readline(*) -> (61) x-hgproto-1: 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull\r\n (glob)
  readline(*) -> (35) accept: application/mercurial-0.1\r\n (glob)
  readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
  readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
  readline(*) -> (2) \r\n (glob)
  sendall(118 from 159) -> (0) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: applicat (py36 !)
  write(118 from 159) -> (0) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: applicat (py3 no-py36 !)
  write(36 from 36) -> (82) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
  write(23 from 23) -> (59) Server: badhttpserver\r\n (no-py3 !)
  write(37 from 37) -> (22) Date: $HTTP_DATE$\r\n (no-py3 !)
  write(22 from 41) -> (0) Content-Type: applicat (no-py3 !)
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=batch': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  
  write(285) -> HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 42\r\n\r\nHTTP/1.1 500 Internal Server Error\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nTransfer-Encoding: chunked\r\n\r\n (py3 no-py36 !)
  write(36) -> HTTP/1.1 500 Internal Server Error\r\n (no-py3 !)

  $ rm -f error.log

Server sends an incomplete HTTP response body to batch request

  $ hg serve --config badserver.closeaftersendbytes=774 -p $HGPORT -d --pid-file=hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS

TODO client spews a stack due to uncaught ValueError in batch.results()
#if no-chg
  $ hg clone http://localhost:$HGPORT/ clone 2> /dev/null
  [1]
#else
  $ hg clone http://localhost:$HGPORT/ clone 2> /dev/null
  [255]
#endif

  $ killdaemons.py $DAEMON_PIDS

  $ cat error.log | "$PYTHON" $TESTDIR/filtertraceback.py
  readline(65537) -> (33) GET /?cmd=capabilities HTTP/1.1\r\n
  readline(*) -> (27) Accept-Encoding: identity\r\n (glob)
  readline(*) -> (35) accept: application/mercurial-0.1\r\n (glob)
  readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
  readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
  readline(*) -> (2) \r\n (glob)
  sendall(160 from 160) -> (614) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 431\r\n\r\n (py36 !)
  sendall(431 from 431) -> (183) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (py36 !)
  write(160 from 160) -> (633) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 431\r\n\r\n (py3 no-py36 !)
  write(431 from 431) -> (183) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (py3 no-py36 !)
  write(36 from 36) -> (738) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
  write(23 from 23) -> (715) Server: badhttpserver\r\n (no-py3 !)
  write(37 from 37) -> (678) Date: $HTTP_DATE$\r\n (no-py3 !)
  write(41 from 41) -> (637) Content-Type: application/mercurial-0.1\r\n (no-py3 !)
  write(21 from 21) -> (616) Content-Length: 431\r\n (no-py3 !)
  write(2 from 2) -> (614) \r\n (no-py3 !)
  write(431 from 431) -> (183) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (no-py3 !)
  readline(65537) -> (26) GET /?cmd=batch HTTP/1.1\r\n
  readline(*) -> (27) Accept-Encoding: identity\r\n (glob)
  readline(*) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n (glob)
  readline(*) -> (41) x-hgarg-1: cmds=heads+%3Bknown+nodes%3D\r\n (glob)
  readline(*) -> (61) x-hgproto-1: 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull\r\n (glob)
  readline(*) -> (35) accept: application/mercurial-0.1\r\n (glob)
  readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
  readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
  readline(*) -> (2) \r\n (glob)
  sendall(159 from 159) -> (24) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 42\r\n\r\n (py36 !)
  sendall(24 from 42) -> (0) 96ee1d7354c4ad7372047672 (py36 !)
  write(159 from 159) -> (24) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 42\r\n\r\n (py3 no-py36 !)
  write(24 from 42) -> (0) 96ee1d7354c4ad7372047672 (py3 no-py36 !)
  write(36 from 36) -> (147) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
  write(23 from 23) -> (124) Server: badhttpserver\r\n (no-py3 !)
  write(37 from 37) -> (87) Date: $HTTP_DATE$\r\n (no-py3 !)
  write(41 from 41) -> (46) Content-Type: application/mercurial-0.1\r\n (no-py3 !)
  write(20 from 20) -> (26) Content-Length: 42\r\n (no-py3 !)
  write(2 from 2) -> (24) \r\n (no-py3 !)
  write(24 from 42) -> (0) 96ee1d7354c4ad7372047672 (no-py3 !)
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=batch': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  

  $ rm -f error.log

Server sends incomplete headers for getbundle response

  $ hg serve --config badserver.closeaftersendbytes=921 -p $HGPORT -d --pid-file=hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS

TODO this output is terrible

  $ hg clone http://localhost:$HGPORT/ clone
  requesting all changes
  abort: 'http://localhost:$HGPORT/' does not appear to be an hg repository:
  ---%<--- (application/mercuri)
  
  ---%<---
  
  [255]

  $ killdaemons.py $DAEMON_PIDS

  $ cat error.log | "$PYTHON" $TESTDIR/filtertraceback.py
  readline(65537) -> (33) GET /?cmd=capabilities HTTP/1.1\r\n
  readline(*) -> (27) Accept-Encoding: identity\r\n (glob)
  readline(*) -> (35) accept: application/mercurial-0.1\r\n (glob)
  readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
  readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
  readline(*) -> (2) \r\n (glob)
  sendall(160 from 160) -> (761) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 431\r\n\r\n (py36 !)
  sendall(431 from 431) -> (330) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (py36 !)
  write(160 from 160) -> (780) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 431\r\n\r\n (py3 no-py36 !)
  write(431 from 431) -> (330) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (py3 no-py36 !)
  write(36 from 36) -> (885) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
  write(23 from 23) -> (862) Server: badhttpserver\r\n (no-py3 !)
  write(37 from 37) -> (825) Date: $HTTP_DATE$\r\n (no-py3 !)
  write(41 from 41) -> (784) Content-Type: application/mercurial-0.1\r\n (no-py3 !)
  write(21 from 21) -> (763) Content-Length: 431\r\n (no-py3 !)
  write(2 from 2) -> (761) \r\n (no-py3 !)
  write(431 from 431) -> (330) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (no-py3 !)
  readline(65537) -> (26) GET /?cmd=batch HTTP/1.1\r\n
  readline(*) -> (27) Accept-Encoding: identity\r\n (glob)
  readline(*) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n (glob)
  readline(*) -> (41) x-hgarg-1: cmds=heads+%3Bknown+nodes%3D\r\n (glob)
  readline(*) -> (61) x-hgproto-1: 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull\r\n (glob)
  readline(*) -> (35) accept: application/mercurial-0.1\r\n (glob)
  readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
  readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
  readline(*) -> (2) \r\n (glob)
  sendall(159 from 159) -> (171) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 42\r\n\r\n (py36 !)
  sendall(42 from 42) -> (129) 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n; (py36 !)
  write(159 from 159) -> (171) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 42\r\n\r\n (py3 no-py36 !)
  write(42 from 42) -> (129) 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n; (py3 no-py36 !)
  write(36 from 36) -> (294) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
  write(23 from 23) -> (271) Server: badhttpserver\r\n (no-py3 !)
  write(37 from 37) -> (234) Date: $HTTP_DATE$\r\n (no-py3 !)
  write(41 from 41) -> (193) Content-Type: application/mercurial-0.1\r\n (no-py3 !)
  write(20 from 20) -> (173) Content-Length: 42\r\n (no-py3 !)
  write(2 from 2) -> (171) \r\n (no-py3 !)
  write(42 from 42) -> (129) 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n; (no-py3 !)
  readline(65537) -> (30) GET /?cmd=getbundle HTTP/1.1\r\n
  readline(*) -> (27) Accept-Encoding: identity\r\n (glob)
  readline(*) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n (glob)
  readline(*) -> (440) x-hgarg-1: bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps%250Astream%253Dv2&cg=1&common=0000000000000000000000000000000000000000&heads=96ee1d7354c4ad7372047672c36a1f561e3a6a4c&listkeys=phases%2Cbookmarks\r\n (glob)
  readline(*) -> (61) x-hgproto-1: 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull\r\n (glob)
  readline(*) -> (35) accept: application/mercurial-0.1\r\n (glob)
  readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
  readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
  readline(*) -> (2) \r\n (glob)
  sendall(129 from 167) -> (0) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercuri (py36 !)
  write(129 from 167) -> (0) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercuri (py3 no-py36 !)
  write(36 from 36) -> (93) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
  write(23 from 23) -> (70) Server: badhttpserver\r\n (no-py3 !)
  write(37 from 37) -> (33) Date: $HTTP_DATE$\r\n (no-py3 !)
  write(33 from 41) -> (0) Content-Type: application/mercuri (no-py3 !)
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  
  write(293) -> HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\nHTTP/1.1 500 Internal Server Error\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nTransfer-Encoding: chunked\r\n\r\n (py3 no-py36 !)
  write(36) -> HTTP/1.1 500 Internal Server Error\r\n (no-py3 !)

  $ rm -f error.log

Server stops before it sends transfer encoding

  $ hg serve --config badserver.closeaftersendbytes=954 -p $HGPORT -d --pid-file=hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS

  $ hg clone http://localhost:$HGPORT/ clone
  requesting all changes
  abort: stream ended unexpectedly (got 0 bytes, expected 1)
  [255]

  $ killdaemons.py $DAEMON_PIDS

#if py36
  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -3
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  

#else
  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -4
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  
  write(293) -> HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\nHTTP/1.1 500 Internal Server Error\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nTransfer-Encoding: chunked\r\n\r\n (py3 !)
  write(36) -> HTTP/1.1 500 Internal Server Error\r\n (no-py3 !)
#endif

  $ rm -f error.log

Server sends empty HTTP body for getbundle

  $ hg serve --config badserver.closeaftersendbytes=959 -p $HGPORT -d --pid-file=hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS

  $ hg clone http://localhost:$HGPORT/ clone
  requesting all changes
  abort: HTTP request error (incomplete response)
  (this may be an intermittent network failure; if the error persists, consider contacting the network or server operator)
  [255]

  $ killdaemons.py $DAEMON_PIDS

  $ cat error.log | "$PYTHON" $TESTDIR/filtertraceback.py
  readline(65537) -> (33) GET /?cmd=capabilities HTTP/1.1\r\n
  readline(*) -> (27) Accept-Encoding: identity\r\n (glob)
  readline(*) -> (35) accept: application/mercurial-0.1\r\n (glob)
  readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
  readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
  readline(*) -> (2) \r\n (glob)
  sendall(160 from 160) -> (799) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 431\r\n\r\n (py36 !)
  sendall(431 from 431) -> (368) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (py36 !)
  write(160 from 160) -> (818) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 431\r\n\r\n (py3 no-py36 !)
  write(431 from 431) -> (368) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (py3 no-py36 !)
  write(36 from 36) -> (923) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
  write(23 from 23) -> (900) Server: badhttpserver\r\n (no-py3 !)
  write(37 from 37) -> (863) Date: $HTTP_DATE$\r\n (no-py3 !)
  write(41 from 41) -> (822) Content-Type: application/mercurial-0.1\r\n (no-py3 !)
  write(21 from 21) -> (801) Content-Length: 431\r\n (no-py3 !)
  write(2 from 2) -> (799) \r\n (no-py3 !)
  write(431 from 431) -> (368) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (no-py3 !)
  readline(65537) -> (26) GET /?cmd=batch HTTP/1.1\r\n
  readline(*) -> (27) Accept-Encoding: identity\r\n (glob)
  readline(*) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n (glob)
  readline(*) -> (41) x-hgarg-1: cmds=heads+%3Bknown+nodes%3D\r\n (glob)
  readline(*) -> (61) x-hgproto-1: 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull\r\n (glob)
  readline(*) -> (35) accept: application/mercurial-0.1\r\n (glob)
  readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
  readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
  readline(*) -> (2) \r\n (glob)
  sendall(159 from 159) -> (209) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 42\r\n\r\n (py36 !)
  sendall(42 from 42) -> (167) 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n; (py36 !)
  write(159 from 159) -> (209) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 42\r\n\r\n (py3 no-py36 !)
  write(42 from 42) -> (167) 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n; (py3 no-py36 !)
  write(36 from 36) -> (332) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
  write(23 from 23) -> (309) Server: badhttpserver\r\n (no-py3 !)
  write(37 from 37) -> (272) Date: $HTTP_DATE$\r\n (no-py3 !)
  write(41 from 41) -> (231) Content-Type: application/mercurial-0.1\r\n (no-py3 !)
  write(20 from 20) -> (211) Content-Length: 42\r\n (no-py3 !)
  write(2 from 2) -> (209) \r\n (no-py3 !)
  write(42 from 42) -> (167) 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n; (no-py3 !)
  readline(65537) -> (30) GET /?cmd=getbundle HTTP/1.1\r\n
  readline(*) -> (27) Accept-Encoding: identity\r\n (glob)
  readline(*) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n (glob)
  readline(*) -> (440) x-hgarg-1: bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps%250Astream%253Dv2&cg=1&common=0000000000000000000000000000000000000000&heads=96ee1d7354c4ad7372047672c36a1f561e3a6a4c&listkeys=phases%2Cbookmarks\r\n (glob)
  readline(*) -> (61) x-hgproto-1: 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull\r\n (glob)
  readline(*) -> (35) accept: application/mercurial-0.1\r\n (glob)
  readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
  readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
  readline(*) -> (2) \r\n (glob)
  sendall(167 from 167) -> (0) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n (py36 !)
  write(167 from 167) -> (0) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n (py3 no-py36 !)
  write(36 from 36) -> (131) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
  write(23 from 23) -> (108) Server: badhttpserver\r\n (no-py3 !)
  write(37 from 37) -> (71) Date: $HTTP_DATE$\r\n (no-py3 !)
  write(41 from 41) -> (30) Content-Type: application/mercurial-0.2\r\n (no-py3 !)
  write(28 from 28) -> (2) Transfer-Encoding: chunked\r\n (no-py3 !)
  write(2 from 2) -> (0) \r\n (no-py3 !)
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  
  write(293) -> HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\nHTTP/1.1 500 Internal Server Error\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nTransfer-Encoding: chunked\r\n\r\n (py3 no-py36 !)
  write(36) -> HTTP/1.1 500 Internal Server Error\r\n (no-py3 !)

  $ rm -f error.log

Server sends partial compression string

  $ hg serve --config badserver.closeaftersendbytes=983 -p $HGPORT -d --pid-file=hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS

  $ hg clone http://localhost:$HGPORT/ clone
  requesting all changes
  abort: HTTP request error (incomplete response)
  (this may be an intermittent network failure; if the error persists, consider contacting the network or server operator)
  [255]

  $ killdaemons.py $DAEMON_PIDS

  $ cat error.log | "$PYTHON" $TESTDIR/filtertraceback.py
  readline(65537) -> (33) GET /?cmd=capabilities HTTP/1.1\r\n
  readline(*) -> (27) Accept-Encoding: identity\r\n (glob)
  readline(*) -> (35) accept: application/mercurial-0.1\r\n (glob)
  readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
  readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
  readline(*) -> (2) \r\n (glob)
  sendall(160 from 160) -> (823) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 431\r\n\r\n (py36 !)
  sendall(431 from 431) -> (392) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (py36 !)
  write(160 from 160) -> (842) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 431\r\n\r\n (py3 no-py36 !)
  write(431 from 431) -> (392) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (py3 no-py36 !)
  write(36 from 36) -> (947) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
  write(23 from 23) -> (924) Server: badhttpserver\r\n (no-py3 !)
  write(37 from 37) -> (887) Date: $HTTP_DATE$\r\n (no-py3 !)
  write(41 from 41) -> (846) Content-Type: application/mercurial-0.1\r\n (no-py3 !)
  write(21 from 21) -> (825) Content-Length: 431\r\n (no-py3 !)
  write(2 from 2) -> (823) \r\n (no-py3 !)
  write(431 from 431) -> (392) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (no-py3 !)
  readline(65537) -> (26) GET /?cmd=batch HTTP/1.1\r\n
  readline(*) -> (27) Accept-Encoding: identity\r\n (glob)
  readline(*) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n (glob)
  readline(*) -> (41) x-hgarg-1: cmds=heads+%3Bknown+nodes%3D\r\n (glob)
  readline(*) -> (61) x-hgproto-1: 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull\r\n (glob)
  readline(*) -> (35) accept: application/mercurial-0.1\r\n (glob)
  readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
  readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
  readline(*) -> (2) \r\n (glob)
  sendall(159 from 159) -> (233) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 42\r\n\r\n (py36 !)
  sendall(42 from 42) -> (191) 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n; (py36 !)
  write(159 from 159) -> (233) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 42\r\n\r\n (py3 no-py36 !)
  write(36 from 36) -> (356) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
  write(23 from 23) -> (333) Server: badhttpserver\r\n (no-py3 !)
  write(37 from 37) -> (296) Date: $HTTP_DATE$\r\n (no-py3 !)
  write(41 from 41) -> (255) Content-Type: application/mercurial-0.1\r\n (no-py3 !)
  write(20 from 20) -> (235) Content-Length: 42\r\n (no-py3 !)
  write(2 from 2) -> (233) \r\n (no-py3 !)
  write(42 from 42) -> (191) 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n; (no-py3 !)
  readline(65537) -> (30) GET /?cmd=getbundle HTTP/1.1\r\n
  readline(*) -> (27) Accept-Encoding: identity\r\n (glob)
  readline(*) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n (glob)
  readline(*) -> (440) x-hgarg-1: bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps%250Astream%253Dv2&cg=1&common=0000000000000000000000000000000000000000&heads=96ee1d7354c4ad7372047672c36a1f561e3a6a4c&listkeys=phases%2Cbookmarks\r\n (glob)
  readline(*) -> (61) x-hgproto-1: 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull\r\n (glob)
  readline(*) -> (35) accept: application/mercurial-0.1\r\n (glob)
  readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
  readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
  readline(*) -> (2) \r\n (glob)
  sendall(167 from 167) -> (24) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n (py36 !)
  sendall(6 from 6) -> (18) 1\\r\\n\x04\\r\\n (esc) (py36 !)
  sendall(9 from 9) -> (9) 4\r\nnone\r\n (py36 !)
  sendall(9 from 9) -> (0) 4\r\nHG20\r\n (py36 !)
  write(167 from 167) -> (24) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n (py3 no-py36 !)
  write(36 from 36) -> (155) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
  write(23 from 23) -> (132) Server: badhttpserver\r\n (no-py3 !)
  write(37 from 37) -> (95) Date: $HTTP_DATE$\r\n (no-py3 !)
  write(41 from 41) -> (54) Content-Type: application/mercurial-0.2\r\n (no-py3 !)
  write(28 from 28) -> (26) Transfer-Encoding: chunked\r\n (no-py3 !)
  write(2 from 2) -> (24) \r\n (no-py3 !)
  write(6 from 6) -> (18) 1\\r\\n\x04\\r\\n (esc) (no-py3 !)
  write(9 from 9) -> (9) 4\r\nnone\r\n (no-py3 !)
  write(9 from 9) -> (0) 4\r\nHG20\r\n (no-py3 !)
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  
  write(27) -> 15\r\nInternal Server Error\r\n (no-py3 !)

  $ rm -f error.log

Server sends partial bundle2 header magic

  $ hg serve --config badserver.closeaftersendbytes=980 -p $HGPORT -d --pid-file=hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS

  $ hg clone http://localhost:$HGPORT/ clone
  requesting all changes
  abort: HTTP request error (incomplete response) (py3 !)
  abort: HTTP request error (incomplete response; expected 4 bytes got 3) (no-py3 !)
  (this may be an intermittent network failure; if the error persists, consider contacting the network or server operator)
  [255]

  $ killdaemons.py $DAEMON_PIDS

#if py36
  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -9
  sendall(167 from 167) -> (21) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n
  sendall(6 from 6) -> (15) 1\\r\\n\x04\\r\\n (esc)
  sendall(9 from 9) -> (6) 4\r\nnone\r\n
  sendall(6 from 9) -> (0) 4\r\nHG2
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  

#else
  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -11
  readline(65537) -> (2) \r\n (py3 !)
  write(167 from 167) -> (21) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n (py3 !)
  write(28 from 28) -> (23) Transfer-Encoding: chunked\r\n (no-py3 !)
  write(2 from 2) -> (21) \r\n (no-py3 !)
  write(6 from 6) -> (15) 1\\r\\n\x04\\r\\n (esc)
  write(9 from 9) -> (6) 4\r\nnone\r\n
  write(6 from 9) -> (0) 4\r\nHG2
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  
  write(27) -> 15\r\nInternal Server Error\r\n
#endif

  $ rm -f error.log

Server sends incomplete bundle2 stream params length

  $ hg serve --config badserver.closeaftersendbytes=989 -p $HGPORT -d --pid-file=hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS

  $ hg clone http://localhost:$HGPORT/ clone
  requesting all changes
  abort: HTTP request error (incomplete response) (py3 !)
  abort: HTTP request error (incomplete response; expected 4 bytes got 3) (no-py3 !)
  (this may be an intermittent network failure; if the error persists, consider contacting the network or server operator)
  [255]

  $ killdaemons.py $DAEMON_PIDS

#if py36
  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -10
  sendall(167 from 167) -> (30) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n
  sendall(6 from 6) -> (24) 1\\r\\n\x04\\r\\n (esc)
  sendall(9 from 9) -> (15) 4\r\nnone\r\n
  sendall(9 from 9) -> (6) 4\r\nHG20\r\n
  sendall(6 from 9) -> (0) 4\\r\\n\x00\x00\x00 (esc)
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  

#else
  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -12
  readline(65537) -> (2) \r\n (py3 !)
  write(167 from 167) -> (30) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n (py3 !)
  write(28 from 28) -> (32) Transfer-Encoding: chunked\r\n (no-py3 !)
  write(2 from 2) -> (30) \r\n (no-py3 !)
  write(6 from 6) -> (24) 1\\r\\n\x04\\r\\n (esc)
  write(9 from 9) -> (15) 4\r\nnone\r\n
  write(9 from 9) -> (6) 4\r\nHG20\r\n
  write(6 from 9) -> (0) 4\\r\\n\x00\x00\x00 (esc)
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  
  write(27) -> 15\r\nInternal Server Error\r\n
#endif

  $ rm -f error.log

Servers stops after bundle2 stream params header

  $ hg serve --config badserver.closeaftersendbytes=992 -p $HGPORT -d --pid-file=hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS

  $ hg clone http://localhost:$HGPORT/ clone
  requesting all changes
  abort: HTTP request error (incomplete response)
  (this may be an intermittent network failure; if the error persists, consider contacting the network or server operator)
  [255]

  $ killdaemons.py $DAEMON_PIDS

#if py36
  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -10
  sendall(167 from 167) -> (33) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n
  sendall(6 from 6) -> (27) 1\\r\\n\x04\\r\\n (esc)
  sendall(9 from 9) -> (18) 4\r\nnone\r\n
  sendall(9 from 9) -> (9) 4\r\nHG20\r\n
  sendall(9 from 9) -> (0) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  

#else
  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -12
  readline(65537) -> (2) \r\n (py3 !)
  write(167 from 167) -> (33) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n (py3 !)
  write(28 from 28) -> (35) Transfer-Encoding: chunked\r\n (no-py3 !)
  write(2 from 2) -> (33) \r\n (no-py3 !)
  write(6 from 6) -> (27) 1\\r\\n\x04\\r\\n (esc)
  write(9 from 9) -> (18) 4\r\nnone\r\n
  write(9 from 9) -> (9) 4\r\nHG20\r\n
  write(9 from 9) -> (0) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  
  write(27) -> 15\r\nInternal Server Error\r\n
#endif

  $ rm -f error.log

Server stops sending after bundle2 part header length

  $ hg serve --config badserver.closeaftersendbytes=1001 -p $HGPORT -d --pid-file=hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS

  $ hg clone http://localhost:$HGPORT/ clone
  requesting all changes
  abort: HTTP request error (incomplete response)
  (this may be an intermittent network failure; if the error persists, consider contacting the network or server operator)
  [255]

  $ killdaemons.py $DAEMON_PIDS

#if py36
  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -11
  sendall(167 from 167) -> (42) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n
  sendall(6 from 6) -> (36) 1\\r\\n\x04\\r\\n (esc)
  sendall(9 from 9) -> (27) 4\r\nnone\r\n
  sendall(9 from 9) -> (18) 4\r\nHG20\r\n
  sendall(9 from 9) -> (9) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  sendall(9 from 9) -> (0) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  

#else

  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -13
  readline(65537) -> (2) \r\n (py3 !)
  write(167 from 167) -> (42) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n (py3 !)
  write(28 from 28) -> (44) Transfer-Encoding: chunked\r\n (no-py3 !)
  write(2 from 2) -> (42) \r\n (no-py3 !)
  write(6 from 6) -> (36) 1\\r\\n\x04\\r\\n (esc)
  write(9 from 9) -> (27) 4\r\nnone\r\n
  write(9 from 9) -> (18) 4\r\nHG20\r\n
  write(9 from 9) -> (9) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  write(9 from 9) -> (0) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  
  write(27) -> 15\r\nInternal Server Error\r\n
#endif

  $ rm -f error.log

Server stops sending after bundle2 part header

  $ hg serve --config badserver.closeaftersendbytes=1048 -p $HGPORT -d --pid-file=hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS

  $ hg clone http://localhost:$HGPORT/ clone
  requesting all changes
  adding changesets
  transaction abort!
  rollback completed
  abort: HTTP request error (incomplete response)
  (this may be an intermittent network failure; if the error persists, consider contacting the network or server operator)
  [255]

  $ killdaemons.py $DAEMON_PIDS

#if py36
  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -12
  sendall(167 from 167) -> (89) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n
  sendall(6 from 6) -> (83) 1\\r\\n\x04\\r\\n (esc)
  sendall(9 from 9) -> (74) 4\r\nnone\r\n
  sendall(9 from 9) -> (65) 4\r\nHG20\r\n
  sendall(9 from 9) -> (56) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  sendall(9 from 9) -> (47) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
  sendall(47 from 47) -> (0) 29\\r\\n\x0bCHANGEGROUP\x00\x00\x00\x00\x01\x01\x07\x02	\x01version02nbchanges1\\r\\n (esc)
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  

#else
  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -14
  readline(65537) -> (2) \r\n (py3 !)
  write(167 from 167) -> (89) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n (py3 !)
  write(28 from 28) -> (91) Transfer-Encoding: chunked\r\n (no-py3 !)
  write(2 from 2) -> (89) \r\n (no-py3 !)
  write(6 from 6) -> (83) 1\\r\\n\x04\\r\\n (esc)
  write(9 from 9) -> (74) 4\r\nnone\r\n
  write(9 from 9) -> (65) 4\r\nHG20\r\n
  write(9 from 9) -> (56) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  write(9 from 9) -> (47) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
  write(47 from 47) -> (0) 29\\r\\n\x0bCHANGEGROUP\x00\x00\x00\x00\x01\x01\x07\x02	\x01version02nbchanges1\\r\\n (esc)
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  
  write(27) -> 15\r\nInternal Server Error\r\n
#endif

  $ rm -f error.log

Server stops after bundle2 part payload chunk size

  $ hg serve --config badserver.closeaftersendbytes=1069 -p $HGPORT -d --pid-file=hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS

  $ hg clone http://localhost:$HGPORT/ clone
  requesting all changes
  adding changesets
  transaction abort!
  rollback completed
  abort: HTTP request error (incomplete response) (py3 !)
  abort: HTTP request error (incomplete response; expected 466 bytes got 7) (no-py3 !)
  (this may be an intermittent network failure; if the error persists, consider contacting the network or server operator)
  [255]

  $ killdaemons.py $DAEMON_PIDS

#if py36
  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -14
  sendall(167 from 167) -> (110) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n
  sendall(6 from 6) -> (104) 1\\r\\n\x04\\r\\n (esc)
  sendall(9 from 9) -> (95) 4\r\nnone\r\n
  sendall(9 from 9) -> (86) 4\r\nHG20\r\n
  sendall(9 from 9) -> (77) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  sendall(9 from 9) -> (68) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
  sendall(47 from 47) -> (21) 29\\r\\n\x0bCHANGEGROUP\x00\x00\x00\x00\x01\x01\x07\x02	\x01version02nbchanges1\\r\\n (esc)
  sendall(9 from 9) -> (12) 4\\r\\n\x00\x00\x01\xd2\\r\\n (esc)
  sendall(12 from 473) -> (0) 1d2\\r\\n\x00\x00\x00\xb2\x96\xee\x1d (esc)
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  

#else
  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -15
  write(167 from 167) -> (110) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n (py3 !)
  write(2 from 2) -> (110) \r\n (no-py3 !)
  write(6 from 6) -> (104) 1\\r\\n\x04\\r\\n (esc)
  write(9 from 9) -> (95) 4\r\nnone\r\n
  write(9 from 9) -> (86) 4\r\nHG20\r\n
  write(9 from 9) -> (77) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  write(9 from 9) -> (68) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
  write(47 from 47) -> (21) 29\\r\\n\x0bCHANGEGROUP\x00\x00\x00\x00\x01\x01\x07\x02	\x01version02nbchanges1\\r\\n (esc)
  write(9 from 9) -> (12) 4\\r\\n\x00\x00\x01\xd2\\r\\n (esc)
  write(12 from 473) -> (0) 1d2\\r\\n\x00\x00\x00\xb2\x96\xee\x1d (esc)
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  
  write(27) -> 15\r\nInternal Server Error\r\n
#endif

  $ rm -f error.log

Server stops sending in middle of bundle2 payload chunk

  $ hg serve --config badserver.closeaftersendbytes=1530 -p $HGPORT -d --pid-file=hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS

  $ hg clone http://localhost:$HGPORT/ clone
  requesting all changes
  adding changesets
  transaction abort!
  rollback completed
  abort: HTTP request error (incomplete response)
  (this may be an intermittent network failure; if the error persists, consider contacting the network or server operator)
  [255]

  $ killdaemons.py $DAEMON_PIDS

#if py36
  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -14
  sendall(167 from 167) -> (571) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n
  sendall(6 from 6) -> (565) 1\\r\\n\x04\\r\\n (esc)
  sendall(9 from 9) -> (556) 4\r\nnone\r\n
  sendall(9 from 9) -> (547) 4\r\nHG20\r\n
  sendall(9 from 9) -> (538) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  sendall(9 from 9) -> (529) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
  sendall(47 from 47) -> (482) 29\\r\\n\x0bCHANGEGROUP\x00\x00\x00\x00\x01\x01\x07\x02	\x01version02nbchanges1\\r\\n (esc)
  sendall(9 from 9) -> (473) 4\\r\\n\x00\x00\x01\xd2\\r\\n (esc)
  sendall(473 from 473) -> (0) 1d2\\r\\n\x00\x00\x00\xb2\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00>6a3df4de388f3c4f8e28f4f9a814299a3cbb5f50\\ntest\\n0 0\\nfoo\\n\\ninitial\x00\x00\x00\x00\x00\x00\x00\xa1j=\xf4\xde8\x8f<O\x8e(\xf4\xf9\xa8\x14)\x9a<\xbb_P\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00-foo\x00b80de5d138758541c5f05265ad144ab9fa86d1db\\n\x00\x00\x00\x00\x00\x00\x00\x07foo\x00\x00\x00h\xb8\\r\xe5\xd18u\x85A\xc5\xf0Re\xad\x14J\xb9\xfa\x86\xd1\xdb\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\\r\\n (esc)
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  

#else
  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -16
  readline(65537) -> (2) \r\n (py3 !)
  write(167 from 167) -> (571) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n (py3 !)
  write(28 from 28) -> (573) Transfer-Encoding: chunked\r\n (no-py3 !)
  write(2 from 2) -> (571) \r\n (no-py3 !)
  write(6 from 6) -> (565) 1\\r\\n\x04\\r\\n (esc)
  write(9 from 9) -> (556) 4\r\nnone\r\n
  write(9 from 9) -> (547) 4\r\nHG20\r\n
  write(9 from 9) -> (538) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  write(9 from 9) -> (529) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
  write(47 from 47) -> (482) 29\\r\\n\x0bCHANGEGROUP\x00\x00\x00\x00\x01\x01\x07\x02	\x01version02nbchanges1\\r\\n (esc)
  write(9 from 9) -> (473) 4\\r\\n\x00\x00\x01\xd2\\r\\n (esc)
  write(473 from 473) -> (0) 1d2\\r\\n\x00\x00\x00\xb2\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00>6a3df4de388f3c4f8e28f4f9a814299a3cbb5f50\\ntest\\n0 0\\nfoo\\n\\ninitial\x00\x00\x00\x00\x00\x00\x00\xa1j=\xf4\xde8\x8f<O\x8e(\xf4\xf9\xa8\x14)\x9a<\xbb_P\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00-foo\x00b80de5d138758541c5f05265ad144ab9fa86d1db\\n\x00\x00\x00\x00\x00\x00\x00\x07foo\x00\x00\x00h\xb8\\r\xe5\xd18u\x85A\xc5\xf0Re\xad\x14J\xb9\xfa\x86\xd1\xdb\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\\r\\n (esc)
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  
  write(27) -> 15\r\nInternal Server Error\r\n
#endif

  $ rm -f error.log

Server stops sending after 0 length payload chunk size

  $ hg serve --config badserver.closeaftersendbytes=1561 -p $HGPORT -d --pid-file=hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS

  $ hg clone http://localhost:$HGPORT/ clone
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  transaction abort!
  rollback completed
  abort: HTTP request error (incomplete response) (py3 !)
  abort: HTTP request error (incomplete response; expected 32 bytes got 9) (no-py3 !)
  (this may be an intermittent network failure; if the error persists, consider contacting the network or server operator)
  [255]

  $ killdaemons.py $DAEMON_PIDS

#if py36
  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -16
  sendall(6 from 6) -> (596) 1\\r\\n\x04\\r\\n (esc)
  sendall(9 from 9) -> (587) 4\r\nnone\r\n
  sendall(9 from 9) -> (578) 4\r\nHG20\r\n
  sendall(9 from 9) -> (569) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  sendall(9 from 9) -> (560) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
  sendall(47 from 47) -> (513) 29\\r\\n\x0bCHANGEGROUP\x00\x00\x00\x00\x01\x01\x07\x02	\x01version02nbchanges1\\r\\n (esc)
  sendall(9 from 9) -> (504) 4\\r\\n\x00\x00\x01\xd2\\r\\n (esc)
  sendall(473 from 473) -> (31) 1d2\\r\\n\x00\x00\x00\xb2\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00>6a3df4de388f3c4f8e28f4f9a814299a3cbb5f50\\ntest\\n0 0\\nfoo\\n\\ninitial\x00\x00\x00\x00\x00\x00\x00\xa1j=\xf4\xde8\x8f<O\x8e(\xf4\xf9\xa8\x14)\x9a<\xbb_P\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00-foo\x00b80de5d138758541c5f05265ad144ab9fa86d1db\\n\x00\x00\x00\x00\x00\x00\x00\x07foo\x00\x00\x00h\xb8\\r\xe5\xd18u\x85A\xc5\xf0Re\xad\x14J\xb9\xfa\x86\xd1\xdb\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\\r\\n (esc)
  sendall(9 from 9) -> (22) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  sendall(9 from 9) -> (13) 4\\r\\n\x00\x00\x00 \\r\\n (esc)
  sendall(13 from 38) -> (0) 20\\r\\n\x08LISTKEYS (esc)
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  

#else
  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -17
  write(6 from 6) -> (596) 1\\r\\n\x04\\r\\n (esc)
  write(9 from 9) -> (587) 4\r\nnone\r\n
  write(9 from 9) -> (578) 4\r\nHG20\r\n
  write(9 from 9) -> (569) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  write(9 from 9) -> (560) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
  write(47 from 47) -> (513) 29\\r\\n\x0bCHANGEGROUP\x00\x00\x00\x00\x01\x01\x07\x02	\x01version02nbchanges1\\r\\n (esc)
  write(9 from 9) -> (504) 4\\r\\n\x00\x00\x01\xd2\\r\\n (esc)
  write(473 from 473) -> (31) 1d2\\r\\n\x00\x00\x00\xb2\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00>6a3df4de388f3c4f8e28f4f9a814299a3cbb5f50\\ntest\\n0 0\\nfoo\\n\\ninitial\x00\x00\x00\x00\x00\x00\x00\xa1j=\xf4\xde8\x8f<O\x8e(\xf4\xf9\xa8\x14)\x9a<\xbb_P\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00-foo\x00b80de5d138758541c5f05265ad144ab9fa86d1db\\n\x00\x00\x00\x00\x00\x00\x00\x07foo\x00\x00\x00h\xb8\\r\xe5\xd18u\x85A\xc5\xf0Re\xad\x14J\xb9\xfa\x86\xd1\xdb\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\\r\\n (esc)
  write(9 from 9) -> (22) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  write(9 from 9) -> (13) 4\\r\\n\x00\x00\x00 \\r\\n (esc)
  write(13 from 38) -> (0) 20\\r\\n\x08LISTKEYS (esc)
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  
  write(27) -> 15\r\nInternal Server Error\r\n
#endif

  $ rm -f error.log

Server stops sending after 0 part bundle part header (indicating end of bundle2 payload)
This is before the 0 size chunked transfer part that signals end of HTTP response.

  $ hg serve --config badserver.closeaftersendbytes=1736 -p $HGPORT -d --pid-file=hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS

  $ hg clone http://localhost:$HGPORT/ clone
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  new changesets 96ee1d7354c4
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ killdaemons.py $DAEMON_PIDS

#if py36
  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -20
  sendall(9 from 9) -> (744) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  sendall(9 from 9) -> (735) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
  sendall(47 from 47) -> (688) 29\\r\\n\x0bCHANGEGROUP\x00\x00\x00\x00\x01\x01\x07\x02	\x01version02nbchanges1\\r\\n (esc)
  sendall(9 from 9) -> (679) 4\\r\\n\x00\x00\x01\xd2\\r\\n (esc)
  sendall(473 from 473) -> (206) 1d2\\r\\n\x00\x00\x00\xb2\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00>6a3df4de388f3c4f8e28f4f9a814299a3cbb5f50\\ntest\\n0 0\\nfoo\\n\\ninitial\x00\x00\x00\x00\x00\x00\x00\xa1j=\xf4\xde8\x8f<O\x8e(\xf4\xf9\xa8\x14)\x9a<\xbb_P\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00-foo\x00b80de5d138758541c5f05265ad144ab9fa86d1db\\n\x00\x00\x00\x00\x00\x00\x00\x07foo\x00\x00\x00h\xb8\\r\xe5\xd18u\x85A\xc5\xf0Re\xad\x14J\xb9\xfa\x86\xd1\xdb\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\\r\\n (esc)
  sendall(9 from 9) -> (197) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  sendall(9 from 9) -> (188) 4\\r\\n\x00\x00\x00 \\r\\n (esc)
  sendall(38 from 38) -> (150) 20\\r\\n\x08LISTKEYS\x00\x00\x00\x01\x01\x00	\x06namespacephases\\r\\n (esc)
  sendall(9 from 9) -> (141) 4\\r\\n\x00\x00\x00:\\r\\n (esc)
  sendall(64 from 64) -> (77) 3a\r\n96ee1d7354c4ad7372047672c36a1f561e3a6a4c	1\npublishing	True\r\n
  sendall(9 from 9) -> (68) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  sendall(9 from 9) -> (59) 4\\r\\n\x00\x00\x00#\\r\\n (esc)
  sendall(41 from 41) -> (18) 23\\r\\n\x08LISTKEYS\x00\x00\x00\x02\x01\x00		namespacebookmarks\\r\\n (esc)
  sendall(9 from 9) -> (9) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  sendall(9 from 9) -> (0) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  

#else
  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -21
  write(9 from 9) -> (744) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  write(9 from 9) -> (735) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
  write(47 from 47) -> (688) 29\\r\\n\x0bCHANGEGROUP\x00\x00\x00\x00\x01\x01\x07\x02	\x01version02nbchanges1\\r\\n (esc)
  write(9 from 9) -> (679) 4\\r\\n\x00\x00\x01\xd2\\r\\n (esc)
  write(473 from 473) -> (206) 1d2\\r\\n\x00\x00\x00\xb2\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00>6a3df4de388f3c4f8e28f4f9a814299a3cbb5f50\\ntest\\n0 0\\nfoo\\n\\ninitial\x00\x00\x00\x00\x00\x00\x00\xa1j=\xf4\xde8\x8f<O\x8e(\xf4\xf9\xa8\x14)\x9a<\xbb_P\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00-foo\x00b80de5d138758541c5f05265ad144ab9fa86d1db\\n\x00\x00\x00\x00\x00\x00\x00\x07foo\x00\x00\x00h\xb8\\r\xe5\xd18u\x85A\xc5\xf0Re\xad\x14J\xb9\xfa\x86\xd1\xdb\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\\r\\n (esc)
  write(9 from 9) -> (197) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  write(9 from 9) -> (188) 4\\r\\n\x00\x00\x00 \\r\\n (esc)
  write(38 from 38) -> (150) 20\\r\\n\x08LISTKEYS\x00\x00\x00\x01\x01\x00	\x06namespacephases\\r\\n (esc)
  write(9 from 9) -> (141) 4\\r\\n\x00\x00\x00:\\r\\n (esc)
  write(64 from 64) -> (77) 3a\r\n96ee1d7354c4ad7372047672c36a1f561e3a6a4c	1\npublishing	True\r\n
  write(9 from 9) -> (68) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  write(9 from 9) -> (59) 4\\r\\n\x00\x00\x00#\\r\\n (esc)
  write(41 from 41) -> (18) 23\\r\\n\x08LISTKEYS\x00\x00\x00\x02\x01\x00		namespacebookmarks\\r\\n (esc)
  write(9 from 9) -> (9) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  write(9 from 9) -> (0) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  
  write(27) -> 15\r\nInternal Server Error\r\n
#endif

  $ rm -f error.log
  $ rm -rf clone

Server sends a size 0 chunked-transfer size without terminating \r\n

  $ hg serve --config badserver.closeaftersendbytes=1739 -p $HGPORT -d --pid-file=hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS

  $ hg clone http://localhost:$HGPORT/ clone
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  new changesets 96ee1d7354c4
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ killdaemons.py $DAEMON_PIDS

#if py36
  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -21
  sendall(9 from 9) -> (747) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  sendall(9 from 9) -> (738) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
  sendall(47 from 47) -> (691) 29\\r\\n\x0bCHANGEGROUP\x00\x00\x00\x00\x01\x01\x07\x02	\x01version02nbchanges1\\r\\n (esc)
  sendall(9 from 9) -> (682) 4\\r\\n\x00\x00\x01\xd2\\r\\n (esc)
  sendall(473 from 473) -> (209) 1d2\\r\\n\x00\x00\x00\xb2\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00>6a3df4de388f3c4f8e28f4f9a814299a3cbb5f50\\ntest\\n0 0\\nfoo\\n\\ninitial\x00\x00\x00\x00\x00\x00\x00\xa1j=\xf4\xde8\x8f<O\x8e(\xf4\xf9\xa8\x14)\x9a<\xbb_P\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00-foo\x00b80de5d138758541c5f05265ad144ab9fa86d1db\\n\x00\x00\x00\x00\x00\x00\x00\x07foo\x00\x00\x00h\xb8\\r\xe5\xd18u\x85A\xc5\xf0Re\xad\x14J\xb9\xfa\x86\xd1\xdb\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\\r\\n (esc)
  sendall(9 from 9) -> (200) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  sendall(9 from 9) -> (191) 4\\r\\n\x00\x00\x00 \\r\\n (esc)
  sendall(38 from 38) -> (153) 20\\r\\n\x08LISTKEYS\x00\x00\x00\x01\x01\x00	\x06namespacephases\\r\\n (esc)
  sendall(9 from 9) -> (144) 4\\r\\n\x00\x00\x00:\\r\\n (esc)
  sendall(64 from 64) -> (80) 3a\r\n96ee1d7354c4ad7372047672c36a1f561e3a6a4c	1\npublishing	True\r\n
  sendall(9 from 9) -> (71) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  sendall(9 from 9) -> (62) 4\\r\\n\x00\x00\x00#\\r\\n (esc)
  sendall(41 from 41) -> (21) 23\\r\\n\x08LISTKEYS\x00\x00\x00\x02\x01\x00		namespacebookmarks\\r\\n (esc)
  sendall(9 from 9) -> (12) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  sendall(9 from 9) -> (3) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  sendall(3 from 5) -> (0) 0\r\n
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  

#else
  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -22
  write(9 from 9) -> (747) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  write(9 from 9) -> (738) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
  write(47 from 47) -> (691) 29\\r\\n\x0bCHANGEGROUP\x00\x00\x00\x00\x01\x01\x07\x02	\x01version02nbchanges1\\r\\n (esc)
  write(9 from 9) -> (682) 4\\r\\n\x00\x00\x01\xd2\\r\\n (esc)
  write(473 from 473) -> (209) 1d2\\r\\n\x00\x00\x00\xb2\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00>6a3df4de388f3c4f8e28f4f9a814299a3cbb5f50\\ntest\\n0 0\\nfoo\\n\\ninitial\x00\x00\x00\x00\x00\x00\x00\xa1j=\xf4\xde8\x8f<O\x8e(\xf4\xf9\xa8\x14)\x9a<\xbb_P\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00-foo\x00b80de5d138758541c5f05265ad144ab9fa86d1db\\n\x00\x00\x00\x00\x00\x00\x00\x07foo\x00\x00\x00h\xb8\\r\xe5\xd18u\x85A\xc5\xf0Re\xad\x14J\xb9\xfa\x86\xd1\xdb\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\\r\\n (esc)
  write(9 from 9) -> (200) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  write(9 from 9) -> (191) 4\\r\\n\x00\x00\x00 \\r\\n (esc)
  write(38 from 38) -> (153) 20\\r\\n\x08LISTKEYS\x00\x00\x00\x01\x01\x00	\x06namespacephases\\r\\n (esc)
  write(9 from 9) -> (144) 4\\r\\n\x00\x00\x00:\\r\\n (esc)
  write(64 from 64) -> (80) 3a\r\n96ee1d7354c4ad7372047672c36a1f561e3a6a4c	1\npublishing	True\r\n
  write(9 from 9) -> (71) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  write(9 from 9) -> (62) 4\\r\\n\x00\x00\x00#\\r\\n (esc)
  write(41 from 41) -> (21) 23\\r\\n\x08LISTKEYS\x00\x00\x00\x02\x01\x00		namespacebookmarks\\r\\n (esc)
  write(9 from 9) -> (12) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  write(9 from 9) -> (3) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
  write(3 from 5) -> (0) 0\r\n
  write limit reached; closing socket
  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
  Traceback (most recent call last):
  Exception: connection closed after sending N bytes
  
  write(27) -> 15\r\nInternal Server Error\r\n
#endif

  $ rm -f error.log
  $ rm -rf clone