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`.
(Translations are optional)
#if gettext no-outer-repo
Test that translations are compiled and installed correctly.
Default encoding in tests is "ascii" and the translation is encoded
using the "replace" error handler:
$ LANGUAGE=pt_BR hg tip
abortado: n?o foi encontrado um reposit?rio em '$TESTTMP' (.hg n?o encontrado)
[10]
Using a more accommodating encoding:
$ HGENCODING=UTF-8 LANGUAGE=pt_BR hg tip
abortado: n\xc3\xa3o foi encontrado um reposit\xc3\xb3rio em '$TESTTMP' (.hg n\xc3\xa3o encontrado) (esc)
[10]
Different encoding:
$ HGENCODING=Latin-1 LANGUAGE=pt_BR hg tip
abortado: n\xe3o foi encontrado um reposit\xf3rio em '$TESTTMP' (.hg n\xe3o encontrado) (esc)
[10]
#endif
#if gettext
Test keyword search in translated help text:
$ HGENCODING=UTF-8 LANGUAGE=de hg help -k Aktualisiert
Themen:
subrepos Unterarchive
Befehle:
pull Ruft \xc3\x84nderungen von der angegebenen Quelle ab (esc)
update Aktualisiert das Arbeitsverzeichnis (oder wechselt die Version)
#endif
Check Mercurial specific translation problems in each *.po files, and
tool itself by doctest
$ cd "$TESTDIR"/../i18n
$ "$PYTHON" check-translation.py *.po
$ "$PYTHON" check-translation.py --doctest
$ cd $TESTTMP
#if gettext
Check i18n cache isn't reused after encoding change:
$ cat > $TESTTMP/encodingchange.py << EOF
> from mercurial.i18n import _
> from mercurial import encoding, registrar
> cmdtable = {}
> command = registrar.command(cmdtable)
> @command(b'encodingchange', norepo=True)
> def encodingchange(ui):
> for encode in (b'ascii', b'UTF-8', b'ascii', b'UTF-8'):
> encoding.encoding = encode
> ui.write(b'%s\n' % _(b'(EXPERIMENTAL)'))
> EOF
$ LANGUAGE=ja hg --config extensions.encodingchange=$TESTTMP/encodingchange.py encodingchange
(?????)
(\xe5\xae\x9f\xe9\xa8\x93\xe7\x9a\x84\xe5\xae\x9f\xe8\xa3\x85) (esc)
(?????)
(\xe5\xae\x9f\xe9\xa8\x93\xe7\x9a\x84\xe5\xae\x9f\xe8\xa3\x85) (esc)
#endif