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django/tests/i18n/test_compilation.py
David Smith 097e3a70c1 Refs #33476 -- Applied Black's 2023 stable style.
Black 23.1.0 is released which, as the first release of the year,
introduces the 2023 stable style. This incorporates most of last year's
preview style.

https://github.com/psf/black/releases/tag/23.1.0
2023-02-01 11:04:38 +01:00

269 lines
10 KiB
Python

import gettext as gettext_module
import os
import stat
import unittest
from io import StringIO
from pathlib import Path
from subprocess import run
from unittest import mock
from django.core.management import CommandError, call_command, execute_from_command_line
from django.core.management.commands.makemessages import Command as MakeMessagesCommand
from django.core.management.utils import find_command
from django.test import SimpleTestCase, override_settings
from django.test.utils import captured_stderr, captured_stdout
from django.utils import translation
from django.utils.translation import gettext
from .utils import RunInTmpDirMixin, copytree
has_msgfmt = find_command("msgfmt")
@unittest.skipUnless(has_msgfmt, "msgfmt is mandatory for compilation tests")
class MessageCompilationTests(RunInTmpDirMixin, SimpleTestCase):
work_subdir = "commands"
class PoFileTests(MessageCompilationTests):
LOCALE = "es_AR"
MO_FILE = "locale/%s/LC_MESSAGES/django.mo" % LOCALE
MO_FILE_EN = "locale/en/LC_MESSAGES/django.mo"
def test_bom_rejection(self):
stderr = StringIO()
with self.assertRaisesMessage(
CommandError, "compilemessages generated one or more errors."
):
call_command(
"compilemessages", locale=[self.LOCALE], verbosity=0, stderr=stderr
)
self.assertIn("file has a BOM (Byte Order Mark)", stderr.getvalue())
self.assertFalse(os.path.exists(self.MO_FILE))
def test_no_write_access(self):
mo_file_en = Path(self.MO_FILE_EN)
err_buffer = StringIO()
# Put file in read-only mode.
old_mode = mo_file_en.stat().st_mode
mo_file_en.chmod(stat.S_IREAD)
# Ensure .po file is more recent than .mo file.
mo_file_en.with_suffix(".po").touch()
try:
with self.assertRaisesMessage(
CommandError, "compilemessages generated one or more errors."
):
call_command(
"compilemessages", locale=["en"], stderr=err_buffer, verbosity=0
)
self.assertIn("not writable location", err_buffer.getvalue())
finally:
mo_file_en.chmod(old_mode)
def test_no_compile_when_unneeded(self):
mo_file_en = Path(self.MO_FILE_EN)
mo_file_en.touch()
stdout = StringIO()
call_command("compilemessages", locale=["en"], stdout=stdout, verbosity=1)
msg = "%s” is already compiled and up to date." % mo_file_en.with_suffix(".po")
self.assertIn(msg, stdout.getvalue())
class PoFileContentsTests(MessageCompilationTests):
# Ticket #11240
LOCALE = "fr"
MO_FILE = "locale/%s/LC_MESSAGES/django.mo" % LOCALE
def test_percent_symbol_in_po_file(self):
call_command("compilemessages", locale=[self.LOCALE], verbosity=0)
self.assertTrue(os.path.exists(self.MO_FILE))
class MultipleLocaleCompilationTests(MessageCompilationTests):
MO_FILE_HR = None
MO_FILE_FR = None
def setUp(self):
super().setUp()
localedir = os.path.join(self.test_dir, "locale")
self.MO_FILE_HR = os.path.join(localedir, "hr/LC_MESSAGES/django.mo")
self.MO_FILE_FR = os.path.join(localedir, "fr/LC_MESSAGES/django.mo")
def test_one_locale(self):
with override_settings(LOCALE_PATHS=[os.path.join(self.test_dir, "locale")]):
call_command("compilemessages", locale=["hr"], verbosity=0)
self.assertTrue(os.path.exists(self.MO_FILE_HR))
def test_multiple_locales(self):
with override_settings(LOCALE_PATHS=[os.path.join(self.test_dir, "locale")]):
call_command("compilemessages", locale=["hr", "fr"], verbosity=0)
self.assertTrue(os.path.exists(self.MO_FILE_HR))
self.assertTrue(os.path.exists(self.MO_FILE_FR))
class ExcludedLocaleCompilationTests(MessageCompilationTests):
work_subdir = "exclude"
MO_FILE = "locale/%s/LC_MESSAGES/django.mo"
def setUp(self):
super().setUp()
copytree("canned_locale", "locale")
def test_command_help(self):
with captured_stdout(), captured_stderr():
# `call_command` bypasses the parser; by calling
# `execute_from_command_line` with the help subcommand we
# ensure that there are no issues with the parser itself.
execute_from_command_line(["django-admin", "help", "compilemessages"])
def test_one_locale_excluded(self):
call_command("compilemessages", exclude=["it"], verbosity=0)
self.assertTrue(os.path.exists(self.MO_FILE % "en"))
self.assertTrue(os.path.exists(self.MO_FILE % "fr"))
self.assertFalse(os.path.exists(self.MO_FILE % "it"))
def test_multiple_locales_excluded(self):
call_command("compilemessages", exclude=["it", "fr"], verbosity=0)
self.assertTrue(os.path.exists(self.MO_FILE % "en"))
self.assertFalse(os.path.exists(self.MO_FILE % "fr"))
self.assertFalse(os.path.exists(self.MO_FILE % "it"))
def test_one_locale_excluded_with_locale(self):
call_command(
"compilemessages", locale=["en", "fr"], exclude=["fr"], verbosity=0
)
self.assertTrue(os.path.exists(self.MO_FILE % "en"))
self.assertFalse(os.path.exists(self.MO_FILE % "fr"))
self.assertFalse(os.path.exists(self.MO_FILE % "it"))
def test_multiple_locales_excluded_with_locale(self):
call_command(
"compilemessages",
locale=["en", "fr", "it"],
exclude=["fr", "it"],
verbosity=0,
)
self.assertTrue(os.path.exists(self.MO_FILE % "en"))
self.assertFalse(os.path.exists(self.MO_FILE % "fr"))
self.assertFalse(os.path.exists(self.MO_FILE % "it"))
class IgnoreDirectoryCompilationTests(MessageCompilationTests):
# Reuse the exclude directory since it contains some locale fixtures.
work_subdir = "exclude"
MO_FILE = "%s/%s/LC_MESSAGES/django.mo"
CACHE_DIR = Path("cache") / "locale"
NESTED_DIR = Path("outdated") / "v1" / "locale"
def setUp(self):
super().setUp()
copytree("canned_locale", "locale")
copytree("canned_locale", self.CACHE_DIR)
copytree("canned_locale", self.NESTED_DIR)
def assertAllExist(self, dir, langs):
self.assertTrue(
all(Path(self.MO_FILE % (dir, lang)).exists() for lang in langs)
)
def assertNoneExist(self, dir, langs):
self.assertTrue(
all(Path(self.MO_FILE % (dir, lang)).exists() is False for lang in langs)
)
def test_one_locale_dir_ignored(self):
call_command("compilemessages", ignore=["cache"], verbosity=0)
self.assertAllExist("locale", ["en", "fr", "it"])
self.assertNoneExist(self.CACHE_DIR, ["en", "fr", "it"])
self.assertAllExist(self.NESTED_DIR, ["en", "fr", "it"])
def test_multiple_locale_dirs_ignored(self):
call_command(
"compilemessages", ignore=["cache/locale", "outdated"], verbosity=0
)
self.assertAllExist("locale", ["en", "fr", "it"])
self.assertNoneExist(self.CACHE_DIR, ["en", "fr", "it"])
self.assertNoneExist(self.NESTED_DIR, ["en", "fr", "it"])
def test_ignores_based_on_pattern(self):
call_command("compilemessages", ignore=["*/locale"], verbosity=0)
self.assertAllExist("locale", ["en", "fr", "it"])
self.assertNoneExist(self.CACHE_DIR, ["en", "fr", "it"])
self.assertNoneExist(self.NESTED_DIR, ["en", "fr", "it"])
class CompilationErrorHandling(MessageCompilationTests):
def test_error_reported_by_msgfmt(self):
# po file contains wrong po formatting.
with self.assertRaises(CommandError):
call_command("compilemessages", locale=["ja"], verbosity=0)
def test_msgfmt_error_including_non_ascii(self):
# po file contains invalid msgstr content (triggers non-ascii error content).
# Make sure the output of msgfmt is unaffected by the current locale.
env = os.environ.copy()
env.update({"LC_ALL": "C"})
with mock.patch(
"django.core.management.utils.run",
lambda *args, **kwargs: run(*args, env=env, **kwargs),
):
cmd = MakeMessagesCommand()
if cmd.gettext_version < (0, 18, 3):
self.skipTest("python-brace-format is a recent gettext addition.")
stderr = StringIO()
with self.assertRaisesMessage(
CommandError, "compilemessages generated one or more errors"
):
call_command(
"compilemessages", locale=["ko"], stdout=StringIO(), stderr=stderr
)
self.assertIn("' cannot start a field name", stderr.getvalue())
class ProjectAndAppTests(MessageCompilationTests):
LOCALE = "ru"
PROJECT_MO_FILE = "locale/%s/LC_MESSAGES/django.mo" % LOCALE
APP_MO_FILE = "app_with_locale/locale/%s/LC_MESSAGES/django.mo" % LOCALE
class FuzzyTranslationTest(ProjectAndAppTests):
def setUp(self):
super().setUp()
gettext_module._translations = {} # flush cache or test will be useless
def test_nofuzzy_compiling(self):
with override_settings(LOCALE_PATHS=[os.path.join(self.test_dir, "locale")]):
call_command("compilemessages", locale=[self.LOCALE], verbosity=0)
with translation.override(self.LOCALE):
self.assertEqual(gettext("Lenin"), "Ленин")
self.assertEqual(gettext("Vodka"), "Vodka")
def test_fuzzy_compiling(self):
with override_settings(LOCALE_PATHS=[os.path.join(self.test_dir, "locale")]):
call_command(
"compilemessages", locale=[self.LOCALE], fuzzy=True, verbosity=0
)
with translation.override(self.LOCALE):
self.assertEqual(gettext("Lenin"), "Ленин")
self.assertEqual(gettext("Vodka"), "Водка")
class AppCompilationTest(ProjectAndAppTests):
def test_app_locale_compiled(self):
call_command("compilemessages", locale=[self.LOCALE], verbosity=0)
self.assertTrue(os.path.exists(self.PROJECT_MO_FILE))
self.assertTrue(os.path.exists(self.APP_MO_FILE))
class PathLibLocaleCompilationTests(MessageCompilationTests):
work_subdir = "exclude"
def test_locale_paths_pathlib(self):
with override_settings(LOCALE_PATHS=[Path(self.test_dir) / "canned_locale"]):
call_command("compilemessages", locale=["fr"], verbosity=0)
self.assertTrue(os.path.exists("canned_locale/fr/LC_MESSAGES/django.mo"))