tests/test-hgweb-raw.t

setdiscovery: fix hang when #heads>200 (issue2971)

When setting up the next sample, we always add all of the heads, regardless
of the desired max sample size. But if the number of heads exceeds this
size, then we don't add any more nodes from the still undecided set.
(This is debatable per se, and I'll investigate it, but it's how we designed
it at the moment.)

The bug was that we always added the overall heads, not the heads of the
remaining undecided set. Thus, if #heads>200 (desired sample size), we
did not make progress any longer.

Test raw style of hgweb

  $ hg init test
  $ cd test
  $ mkdir sub
  $ cat >'sub/some "text".txt' <<ENDSOME
  > This is just some random text
  > that will go inside the file and take a few lines.
  > It is very boring to read, but computers don't
  > care about things like that.
  > ENDSOME
  $ hg add 'sub/some "text".txt'
  warning: filename contains '"', which is reserved on Windows: 'sub/some "text".txt'
  $ hg commit -d "1 0" -m "Just some text"

  $ hg serve -p $HGPORT -A access.log -E error.log -d --pid-file=hg.pid

  $ cat hg.pid >> $DAEMON_PIDS
  $ ("$TESTDIR/get-with-headers.py" localhost:$HGPORT '/?f=a23bf1310f6e;file=sub/some%20%22text%22.txt;style=raw' content-type content-length content-disposition) >getoutput.txt &
  $ sleep 5
  $ kill `cat hg.pid`
  $ sleep 1 # wait for server to scream and die
  $ cat getoutput.txt
  200 Script output follows
  content-type: application/binary
  content-length: 157
  content-disposition: inline; filename="some \"text\".txt"
  
  This is just some random text
  that will go inside the file and take a few lines.
  It is very boring to read, but computers don't
  care about things like that.
  $ cat access.log error.log
  127.0.0.1 - - [*] "GET /?f=a23bf1310f6e;file=sub/some%20%22text%22.txt;style=raw HTTP/1.1" 200 - (glob)

  $ rm access.log error.log
  $ hg serve -p $HGPORT -A access.log -E error.log -d --pid-file=hg.pid \
  > --config web.guessmime=True

  $ cat hg.pid >> $DAEMON_PIDS
  $ ("$TESTDIR/get-with-headers.py" localhost:$HGPORT '/?f=a23bf1310f6e;file=sub/some%20%22text%22.txt;style=raw' content-type content-length content-disposition) >getoutput.txt &
  $ sleep 5
  $ kill `cat hg.pid`
  $ sleep 1 # wait for server to scream and die
  $ cat getoutput.txt
  200 Script output follows
  content-type: text/plain; charset="ascii"
  content-length: 157
  content-disposition: inline; filename="some \"text\".txt"
  
  This is just some random text
  that will go inside the file and take a few lines.
  It is very boring to read, but computers don't
  care about things like that.
  $ cat access.log error.log
  127.0.0.1 - - [*] "GET /?f=a23bf1310f6e;file=sub/some%20%22text%22.txt;style=raw HTTP/1.1" 200 - (glob)