view tests/test-pullling-to-general-delta.t @ 52092:e2311951b63a

tests: raise the default value for the various `devel.sync.*-timeout` configs

These are used in `mercurial.testing.wait_file()` to stall for a file to appear
in the filesystem, and raise an error if the file doesn't show up before the
timeout expires.

The default of 2s was way too low on Windows, especially when running tests in
parallel, and resulted in various timeouts in `test-dirstate-read-race.t`,
`test-dirstate-status-write-race.t`, and `test-clone-stream-revlog-split.t`.
The various `wait-on-file` invocations in the tests are inconsistent, and wait
anywhere from 5s - 20s.  I'm using 20s here because if everything is working,
the timeout won't matter.  Also with the default timeout being raised on Windows
in f4c038081561, both `HGTEST_TIMEOUT_DEFAULT` and `HGTEST_TIMEOUT` are 1440 in
the default case where the timeout is not specified on the command line of the
test runner, so the timing factor that is multipled with the value is 1,
resulting in no changes. (But if someone specified a lower value on the command
line, that would *lower* the timeout period used.)

============================================================================
Pulling from modern to a non-general delta target (and other related checks)
============================================================================

There is various issue that can arise when we update the code with modern
storage in mind while working on delta processing. So this file is meant for
various scenario that might break in the future or have break in the past.

Setup
=====

Create a modern server with an older clone

  $ cat << EOF >> $HGRCPATH
  > [command-templates]
  > log = "{desc} {tags}\n"
  > EOF

  $ hg init server

  $ hg clone --quiet --pull server client --config format.usegeneraldelta=no
  $ hg debugformat -R client | grep generaldelta
  generaldelta:        no

Create some complexe history

  $ cd server
  $ hg debugbuilddag -n '.+3:a$.+5:b/a:k$.+7:c/b:l$.+6:d/a:m<k+6/l+1/m'
  $ hg log -G
  o    r36 tip
  |\
  | o  r35
  | |
  | o    r34
  | |\
  | | o  r33
  | | |
  | | o  r32
  | | |
  | | o  r31
  | | |
  | | o  r30
  | | |
  | | o  r29
  | | |
  | | o  r28
  | | |
  o | |    r27 m
  |\ \ \
  | o | |  r26 d
  | | | |
  | o | |  r25
  | | | |
  | o | |  r24
  | | | |
  | o | |  r23
  | | | |
  | o | |  r22
  | | | |
  | o | |  r21
  | | | |
  | o | |  r20
  |  / /
  | o |    r19 l
  | |\ \
  | | o |  r18 c
  | | | |
  | | o |  r17
  | | | |
  | | o |  r16
  | | | |
  | | o |  r15
  | | | |
  | | o |  r14
  | | | |
  | | o |  r13
  | | | |
  | | o |  r12
  | | | |
  | | o |  r11
  | |  /
  +---o  r10 k
  | |/
  | o  r9 b
  | |
  | o  r8
  | |
  | o  r7
  | |
  | o  r6
  | |
  | o  r5
  | |
  | o  r4
  |
  o  r3 a
  |
  o  r2
  |
  o  r1
  |
  o  r0
  
  $ cd ..


Pull it in the client
=====================


pull with default value
-----------------------

  $ cp -R client client-simple-pull
  $ hg -R client-simple-pull pull
  pulling from $TESTTMP/server
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 37 changesets with 37 changes to 37 files
  new changesets 61246295ee1e:b4b117cbbcf3
  (run 'hg update' to get a working copy)
  $ hg -R client-simple-pull verify
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  checking dirstate
  checked 37 changesets with 37 changes to 37 files


pull with "no-reuse" policy
---------------------------

  $ cp -R client client-no-reuse
  $ hg -R client-no-reuse pull --config paths.default:pulled-delta-reuse-policy=no-reuse
  pulling from $TESTTMP/server
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 37 changesets with 37 changes to 37 files
  new changesets 61246295ee1e:b4b117cbbcf3
  (run 'hg update' to get a working copy)
  $ hg -R client-no-reuse verify
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  checking dirstate
  checked 37 changesets with 37 changes to 37 files


pull with "try-base" policy
---------------------------

  $ cp -R client client-try-base
  $ hg -R client-try-base pull --config paths.default:pulled-delta-reuse-policy=try-base
  pulling from $TESTTMP/server
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 37 changesets with 37 changes to 37 files
  new changesets 61246295ee1e:b4b117cbbcf3
  (run 'hg update' to get a working copy)
  $ hg -R client-try-base verify
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  checking dirstate
  checked 37 changesets with 37 changes to 37 files


pull with "forced" policy
-------------------------

  $ cp -R client client-forced
  $ hg -R client-forced paths --config paths.default:pulled-delta-reuse-policy=forced
  default = $TESTTMP/server
  default:pulled-delta-reuse-policy = forced
  $ hg -R client-forced pull --config paths.default:pulled-delta-reuse-policy=forced
  pulling from $TESTTMP/server
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 37 changesets with 37 changes to 37 files
  new changesets 61246295ee1e:b4b117cbbcf3
  (run 'hg update' to get a working copy)
  $ hg -R client-forced verify
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  checking dirstate
  checked 37 changesets with 37 changes to 37 files