tests: add tests and document expectations from visit_children_set in rust
The tests this patch are adding have the form of formal spec in
invariants::visit_children_set::holds,
and then a series of checks that all examples must satisfy this
formal spec.
I tried to make the spec consistent with how this function is used
and how it was originally conceived. This is in conflict with how it's
documented in Rust. Some of the implementations also fail to implement
this spec, which leads to bugs, in particular when complicated patterns
are used with `hg status`.
$ cat > adddrop.py <<EOF
> from mercurial import registrar
> cmdtable = {}
> command = registrar.command(cmdtable)
> @command(b'debugadddrop',
> [(b'', b'drop', False, b'drop file from dirstate', b'FILE'),
> (b'', b'normal-lookup', False, b'add file to dirstate', b'FILE')],
> b'hg debugadddrop')
> def debugadddrop(ui, repo, *pats, **opts):
> '''Add or drop unnamed arguments to or from the dirstate'''
> drop = opts.get('drop')
> nl = opts.get('normal_lookup')
> if nl and drop:
> raise error.Abort('drop and normal-lookup are mutually exclusive')
> wlock = repo.wlock()
> try:
> for file in pats:
> if opts.get('normal_lookup'):
> with repo.dirstate.changing_parents(repo):
> repo.dirstate.update_file(
> file,
> p1_tracked=True,
> wc_tracked=True,
> possibly_dirty=True,
> )
> else:
> repo.dirstate._map.reset_state(file)
> repo.dirstate._dirty = True
>
> repo.dirstate.write(repo.currenttransaction())
> finally:
> wlock.release()
> EOF
$ echo "[extensions]" >> $HGRCPATH
$ echo "debugadddrop=`pwd`/adddrop.py" >> $HGRCPATH
basic test for hg debugrebuildstate
$ hg init repo
$ cd repo
$ touch foo bar
$ hg ci -Am 'add foo bar'
adding bar
adding foo
$ touch baz
$ hg add baz
$ hg rm bar
$ hg debugrebuildstate
state dump after
$ hg debugstate --no-dates | sort
n 0 -1 unset bar
n 0 -1 unset foo
$ hg debugadddrop --normal-lookup file1 file2
$ hg debugadddrop --drop bar
$ hg debugadddrop --drop
$ hg debugstate --no-dates
n 0 -1 unset file1
n 0 -1 unset file2
n 0 -1 unset foo
$ hg debugrebuildstate
status
$ hg st -A
! bar
? baz
C foo
Test debugdirstate --minimal where a file is not in parent manifest
but in the dirstate
$ touch foo bar qux
$ hg add qux
$ hg remove bar
$ sleep 1 # remove potential ambiguity in mtime
$ hg status -A
A qux
R bar
? baz
C foo
$ hg debugadddrop --normal-lookup baz
$ hg debugdirstate --no-dates
r 0 0 * bar (glob)
n 0 -1 * baz (glob)
n 644 0 * foo (glob)
a 0 -1 * qux (glob)
$ hg debugrebuilddirstate --minimal
$ hg debugdirstate --no-dates
r 0 0 * bar (glob)
n 644 0 * foo (glob)
a 0 -1 * qux (glob)
$ hg status -A
A qux
R bar
? baz
C foo
Test debugdirstate --minimal where file is in the parent manifest but not the
dirstate
$ hg manifest
bar
foo
$ sleep 1 # remove potential ambiguity in mtime
$ hg status -A
A qux
R bar
? baz
C foo
$ hg debugdirstate --no-dates
r 0 0 * bar (glob)
n 644 0 * foo (glob)
a 0 -1 * qux (glob)
$ hg debugadddrop --drop foo
$ hg debugdirstate --no-dates
r 0 0 * bar (glob)
a 0 -1 * qux (glob)
$ hg debugrebuilddirstate --minimal
$ hg debugdirstate --no-dates
r 0 0 * bar (glob)
n 0 -1 * foo (glob)
a 0 -1 * qux (glob)
$ hg status -A
A qux
R bar
? baz
C foo