view tests/test-journal.t @ 29494:3b5389ef5cfe

perf: define util.safehasattr forcibly for Mercurial earlier than 1.9.3

Before this patch, using util.safehasattr() prevents perf.py from
being loaded by Mercurial earlier than 1.9.3 (or 94b200a11cf7),
because util.safehasattr() isn't available in such Mercurial, even
though there are some code paths for Mercurial earlier than 1.9.3.

For example, setting "_prereadsize" attribute in perfindex() and
perfnodelookup() is effective only with Mercurial earlier than 1.8 (or
61c9bc3da402).

This patch is a preparation for using util.safehasattr() safely in
subsequent patches.

This patch defines util.safehasattr() forcibly without examining
whether it is available or not, because:

  - examining existence of "safehasattr" safely itself needs similar logic
  - safehasattr() is small enough to define locally

Tests for the journal extension; records bookmark locations.

  $ cat >> testmocks.py << EOF
  > # mock out util.getuser() and util.makedate() to supply testable values
  > import os
  > from mercurial import util
  > def mockgetuser():
  >     return 'foobar'
  > 
  > def mockmakedate():
  >     filename = os.path.join(os.environ['TESTTMP'], 'testtime')
  >     try:
  >         with open(filename, 'rb') as timef:
  >             time = float(timef.read()) + 1
  >     except IOError:
  >         time = 0.0
  >     with open(filename, 'wb') as timef:
  >         timef.write(str(time))
  >     return (time, 0)
  > 
  > util.getuser = mockgetuser
  > util.makedate = mockmakedate
  > EOF

  $ cat >> $HGRCPATH << EOF
  > [extensions]
  > journal=
  > testmocks=`pwd`/testmocks.py
  > EOF

Setup repo

  $ hg init repo
  $ cd repo
  $ echo a > a
  $ hg commit -Aqm a
  $ echo b > a
  $ hg commit -Aqm b
  $ hg up 0
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

Test empty journal

  $ hg journal
  previous locations of all bookmarks:
  no recorded locations
  $ hg journal foo
  previous locations of 'foo':
  no recorded locations

Test that bookmarks are tracked

  $ hg book -r tip bar
  $ hg journal bar
  previous locations of 'bar':
  1e6c11564562  book -r tip bar
  $ hg book -f bar
  $ hg journal bar
  previous locations of 'bar':
  cb9a9f314b8b  book -f bar
  1e6c11564562  book -r tip bar
  $ hg up
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  updating bookmark bar
  $ hg journal bar
  previous locations of 'bar':
  1e6c11564562  up
  cb9a9f314b8b  book -f bar
  1e6c11564562  book -r tip bar

Test that you can list all bookmarks as well as limit the list or filter on them

  $ hg book -r tip baz
  $ hg journal
  previous locations of all bookmarks:
  1e6c11564562  book -r tip baz
  1e6c11564562  up
  cb9a9f314b8b  book -f bar
  1e6c11564562  book -r tip bar
  $ hg journal --limit 2
  previous locations of all bookmarks:
  1e6c11564562  book -r tip baz
  1e6c11564562  up
  $ hg journal baz
  previous locations of 'baz':
  1e6c11564562  book -r tip baz
  $ hg journal bar
  previous locations of 'bar':
  1e6c11564562  up
  cb9a9f314b8b  book -f bar
  1e6c11564562  book -r tip bar
  $ hg journal foo
  previous locations of 'foo':
  no recorded locations

Test that verbose and commit output work

  $ hg journal --verbose
  previous locations of all bookmarks:
  000000000000 -> 1e6c11564562 foobar   1970-01-01 00:00 +0000  book -r tip baz
  cb9a9f314b8b -> 1e6c11564562 foobar   1970-01-01 00:00 +0000  up
  1e6c11564562 -> cb9a9f314b8b foobar   1970-01-01 00:00 +0000  book -f bar
  000000000000 -> 1e6c11564562 foobar   1970-01-01 00:00 +0000  book -r tip bar
  $ hg journal --commit
  previous locations of all bookmarks:
  1e6c11564562  book -r tip baz
  changeset:   1:1e6c11564562
  bookmark:    bar
  bookmark:    baz
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     b
  
  1e6c11564562  up
  changeset:   1:1e6c11564562
  bookmark:    bar
  bookmark:    baz
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     b
  
  cb9a9f314b8b  book -f bar
  changeset:   0:cb9a9f314b8b
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     a
  
  1e6c11564562  book -r tip bar
  changeset:   1:1e6c11564562
  bookmark:    bar
  bookmark:    baz
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     b
  

Test for behaviour on unexpected storage version information

  $ printf '42\0' > .hg/journal
  $ hg journal
  previous locations of all bookmarks:
  abort: unknown journal file version '42'
  [255]
  $ hg book -r tip doomed
  unsupported journal file version '42'