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test_support.py
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test_support.py
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# -*- coding: utf-8 -*-
#
# Copyright (C) 2007-2011 Edgewall Software, 2013-2019 the Babel team
# All rights reserved.
#
# This software is licensed as described in the file LICENSE, which
# you should have received as part of this distribution. The terms
# are also available at http://babel.edgewall.org/wiki/License.
#
# This software consists of voluntary contributions made by many
# individuals. For the exact contribution history, see the revision
# history and logs, available at http://babel.edgewall.org/log/.
import inspect
import os
import shutil
import tempfile
import unittest
import pytest
from datetime import date, datetime, timedelta
from babel import support
from babel.messages import Catalog
from babel.messages.mofile import write_mo
from babel._compat import BytesIO, PY2
get_arg_spec = (inspect.getargspec if PY2 else inspect.getfullargspec)
@pytest.mark.usefixtures("os_environ")
class TranslationsTestCase(unittest.TestCase):
def setUp(self):
# Use a locale which won't fail to run the tests
os.environ['LANG'] = 'en_US.UTF-8'
messages1 = [
('foo', {'string': 'Voh'}),
('foo', {'string': 'VohCTX', 'context': 'foo'}),
(('foo1', 'foos1'), {'string': ('Voh1', 'Vohs1')}),
(('foo1', 'foos1'), {'string': ('VohCTX1', 'VohsCTX1'), 'context': 'foo'}),
]
messages2 = [
('foo', {'string': 'VohD'}),
('foo', {'string': 'VohCTXD', 'context': 'foo'}),
(('foo1', 'foos1'), {'string': ('VohD1', 'VohsD1')}),
(('foo1', 'foos1'), {'string': ('VohCTXD1', 'VohsCTXD1'), 'context': 'foo'}),
]
catalog1 = Catalog(locale='en_GB', domain='messages')
catalog2 = Catalog(locale='en_GB', domain='messages1')
for ids, kwargs in messages1:
catalog1.add(ids, **kwargs)
for ids, kwargs in messages2:
catalog2.add(ids, **kwargs)
catalog1_fp = BytesIO()
catalog2_fp = BytesIO()
write_mo(catalog1_fp, catalog1)
catalog1_fp.seek(0)
write_mo(catalog2_fp, catalog2)
catalog2_fp.seek(0)
translations1 = support.Translations(catalog1_fp)
translations2 = support.Translations(catalog2_fp, domain='messages1')
self.translations = translations1.add(translations2, merge=False)
def assertEqualTypeToo(self, expected, result):
self.assertEqual(expected, result)
assert type(expected) == type(result), "instance type's do not " + \
"match: %r!=%r" % (type(expected), type(result))
def test_pgettext(self):
self.assertEqualTypeToo('Voh', self.translations.gettext('foo'))
self.assertEqualTypeToo('VohCTX', self.translations.pgettext('foo',
'foo'))
def test_upgettext(self):
self.assertEqualTypeToo(u'Voh', self.translations.ugettext('foo'))
self.assertEqualTypeToo(u'VohCTX', self.translations.upgettext('foo',
'foo'))
def test_lpgettext(self):
self.assertEqualTypeToo(b'Voh', self.translations.lgettext('foo'))
self.assertEqualTypeToo(b'VohCTX', self.translations.lpgettext('foo',
'foo'))
def test_npgettext(self):
self.assertEqualTypeToo('Voh1',
self.translations.ngettext('foo1', 'foos1', 1))
self.assertEqualTypeToo('Vohs1',
self.translations.ngettext('foo1', 'foos1', 2))
self.assertEqualTypeToo('VohCTX1',
self.translations.npgettext('foo', 'foo1',
'foos1', 1))
self.assertEqualTypeToo('VohsCTX1',
self.translations.npgettext('foo', 'foo1',
'foos1', 2))
def test_unpgettext(self):
self.assertEqualTypeToo(u'Voh1',
self.translations.ungettext('foo1', 'foos1', 1))
self.assertEqualTypeToo(u'Vohs1',
self.translations.ungettext('foo1', 'foos1', 2))
self.assertEqualTypeToo(u'VohCTX1',
self.translations.unpgettext('foo', 'foo1',
'foos1', 1))
self.assertEqualTypeToo(u'VohsCTX1',
self.translations.unpgettext('foo', 'foo1',
'foos1', 2))
def test_lnpgettext(self):
self.assertEqualTypeToo(b'Voh1',
self.translations.lngettext('foo1', 'foos1', 1))
self.assertEqualTypeToo(b'Vohs1',
self.translations.lngettext('foo1', 'foos1', 2))
self.assertEqualTypeToo(b'VohCTX1',
self.translations.lnpgettext('foo', 'foo1',
'foos1', 1))
self.assertEqualTypeToo(b'VohsCTX1',
self.translations.lnpgettext('foo', 'foo1',
'foos1', 2))
def test_dpgettext(self):
self.assertEqualTypeToo(
'VohD', self.translations.dgettext('messages1', 'foo'))
self.assertEqualTypeToo(
'VohCTXD', self.translations.dpgettext('messages1', 'foo', 'foo'))
def test_dupgettext(self):
self.assertEqualTypeToo(
u'VohD', self.translations.dugettext('messages1', 'foo'))
self.assertEqualTypeToo(
u'VohCTXD', self.translations.dupgettext('messages1', 'foo', 'foo'))
def test_ldpgettext(self):
self.assertEqualTypeToo(
b'VohD', self.translations.ldgettext('messages1', 'foo'))
self.assertEqualTypeToo(
b'VohCTXD', self.translations.ldpgettext('messages1', 'foo', 'foo'))
def test_dnpgettext(self):
self.assertEqualTypeToo(
'VohD1', self.translations.dngettext('messages1', 'foo1', 'foos1', 1))
self.assertEqualTypeToo(
'VohsD1', self.translations.dngettext('messages1', 'foo1', 'foos1', 2))
self.assertEqualTypeToo(
'VohCTXD1', self.translations.dnpgettext('messages1', 'foo', 'foo1',
'foos1', 1))
self.assertEqualTypeToo(
'VohsCTXD1', self.translations.dnpgettext('messages1', 'foo', 'foo1',
'foos1', 2))
def test_dunpgettext(self):
self.assertEqualTypeToo(
u'VohD1', self.translations.dungettext('messages1', 'foo1', 'foos1', 1))
self.assertEqualTypeToo(
u'VohsD1', self.translations.dungettext('messages1', 'foo1', 'foos1', 2))
self.assertEqualTypeToo(
u'VohCTXD1', self.translations.dunpgettext('messages1', 'foo', 'foo1',
'foos1', 1))
self.assertEqualTypeToo(
u'VohsCTXD1', self.translations.dunpgettext('messages1', 'foo', 'foo1',
'foos1', 2))
def test_ldnpgettext(self):
self.assertEqualTypeToo(
b'VohD1', self.translations.ldngettext('messages1', 'foo1', 'foos1', 1))
self.assertEqualTypeToo(
b'VohsD1', self.translations.ldngettext('messages1', 'foo1', 'foos1', 2))
self.assertEqualTypeToo(
b'VohCTXD1', self.translations.ldnpgettext('messages1', 'foo', 'foo1',
'foos1', 1))
self.assertEqualTypeToo(
b'VohsCTXD1', self.translations.ldnpgettext('messages1', 'foo', 'foo1',
'foos1', 2))
def test_load(self):
tempdir = tempfile.mkdtemp()
try:
messages_dir = os.path.join(tempdir, 'fr', 'LC_MESSAGES')
os.makedirs(messages_dir)
catalog = Catalog(locale='fr', domain='messages')
catalog.add('foo', 'bar')
with open(os.path.join(messages_dir, 'messages.mo'), 'wb') as f:
write_mo(f, catalog)
translations = support.Translations.load(tempdir, locales=('fr',), domain='messages')
self.assertEqual('bar', translations.gettext('foo'))
finally:
shutil.rmtree(tempdir)
class NullTranslationsTestCase(unittest.TestCase):
def setUp(self):
fp = BytesIO()
write_mo(fp, Catalog(locale='de'))
fp.seek(0)
self.translations = support.Translations(fp=fp)
self.null_translations = support.NullTranslations(fp=fp)
def method_names(self):
return [name for name in dir(self.translations) if 'gettext' in name]
def test_same_methods(self):
for name in self.method_names():
if not hasattr(self.null_translations, name):
self.fail('NullTranslations does not provide method %r' % name)
def test_method_signature_compatibility(self):
for name in self.method_names():
translations_method = getattr(self.translations, name)
null_method = getattr(self.null_translations, name)
self.assertEqual(
get_arg_spec(translations_method),
get_arg_spec(null_method),
)
def test_same_return_values(self):
data = {
'message': u'foo', 'domain': u'domain', 'context': 'tests',
'singular': u'bar', 'plural': u'baz', 'num': 1,
'msgid1': u'bar', 'msgid2': u'baz', 'n': 1,
}
for name in self.method_names():
method = getattr(self.translations, name)
null_method = getattr(self.null_translations, name)
signature = get_arg_spec(method)
parameter_names = [name for name in signature.args if name != 'self']
values = [data[name] for name in parameter_names]
self.assertEqual(method(*values), null_method(*values))
class LazyProxyTestCase(unittest.TestCase):
def test_proxy_caches_result_of_function_call(self):
self.counter = 0
def add_one():
self.counter += 1
return self.counter
proxy = support.LazyProxy(add_one)
self.assertEqual(1, proxy.value)
self.assertEqual(1, proxy.value)
def test_can_disable_proxy_cache(self):
self.counter = 0
def add_one():
self.counter += 1
return self.counter
proxy = support.LazyProxy(add_one, enable_cache=False)
self.assertEqual(1, proxy.value)
self.assertEqual(2, proxy.value)
def test_can_copy_proxy(self):
from copy import copy
numbers = [1, 2]
def first(xs):
return xs[0]
proxy = support.LazyProxy(first, numbers)
proxy_copy = copy(proxy)
numbers.pop(0)
self.assertEqual(2, proxy.value)
self.assertEqual(2, proxy_copy.value)
def test_can_deepcopy_proxy(self):
from copy import deepcopy
numbers = [1, 2]
def first(xs):
return xs[0]
proxy = support.LazyProxy(first, numbers)
proxy_deepcopy = deepcopy(proxy)
numbers.pop(0)
self.assertEqual(2, proxy.value)
self.assertEqual(1, proxy_deepcopy.value)
def test_handle_attribute_error(self):
def raise_attribute_error():
raise AttributeError('message')
proxy = support.LazyProxy(raise_attribute_error)
with pytest.raises(AttributeError) as exception:
proxy.value
self.assertEqual('message', str(exception.value))
def test_format_date():
fmt = support.Format('en_US')
assert fmt.date(date(2007, 4, 1)) == 'Apr 1, 2007'
def test_format_datetime():
from pytz import timezone
fmt = support.Format('en_US', tzinfo=timezone('US/Eastern'))
when = datetime(2007, 4, 1, 15, 30)
assert fmt.datetime(when) == 'Apr 1, 2007, 11:30:00 AM'
def test_format_time():
from pytz import timezone
fmt = support.Format('en_US', tzinfo=timezone('US/Eastern'))
assert fmt.time(datetime(2007, 4, 1, 15, 30)) == '11:30:00 AM'
def test_format_timedelta():
fmt = support.Format('en_US')
assert fmt.timedelta(timedelta(weeks=11)) == '3 months'
def test_format_number():
fmt = support.Format('en_US')
assert fmt.number(1099) == '1,099'
def test_format_decimal():
fmt = support.Format('en_US')
assert fmt.decimal(1.2345) == '1.234'
def test_format_percent():
fmt = support.Format('en_US')
assert fmt.percent(0.34) == '34%'
def test_lazy_proxy():
def greeting(name='world'):
return u'Hello, %s!' % name
lazy_greeting = support.LazyProxy(greeting, name='Joe')
assert str(lazy_greeting) == u"Hello, Joe!"
assert u' ' + lazy_greeting == u' Hello, Joe!'
assert u'(%s)' % lazy_greeting == u'(Hello, Joe!)'
greetings = [
support.LazyProxy(greeting, 'world'),
support.LazyProxy(greeting, 'Joe'),
support.LazyProxy(greeting, 'universe'),
]
greetings.sort()
assert [str(g) for g in greetings] == [
u"Hello, Joe!",
u"Hello, universe!",
u"Hello, world!",
]
def test_catalog_merge_files():
# Refs issues #92, #162
t1 = support.Translations()
assert t1.files == []
t1._catalog["foo"] = "bar"
if PY2:
# Explicitly use the pure-Python `StringIO` class, as we need to
# augment it with the `name` attribute, which we can't do for
# `babel._compat.BytesIO`, which is `cStringIO.StringIO` under
# `PY2`...
from StringIO import StringIO
fp = StringIO()
else:
fp = BytesIO()
write_mo(fp, Catalog())
fp.seek(0)
fp.name = "pro.mo"
t2 = support.Translations(fp)
assert t2.files == ["pro.mo"]
t2._catalog["bar"] = "quux"
t1.merge(t2)
assert t1.files == ["pro.mo"]
assert set(t1._catalog.keys()) == {'', 'foo', 'bar'}