Python django.utils.deprecation.RemovedInDjango30Warning() Examples

def test_inline_admin_warning(self):
        class SongInlineAdmin(TabularInline):
            model = Song

            def has_add_permission(self, request):
                return super().has_add_permission(request)

        class BandAdmin(ModelAdmin):
            inlines = [SongInlineAdmin]

        msg = (
            "Update SongInlineAdmin.has_add_permission() to accept a "
            "positional `obj` argument."
        )
        with self.assertWarnsMessage(RemovedInDjango30Warning, msg):
            self.assertIsValid(BandAdmin, Band) 

def test(self):
        """
        admin_static.static points to the collectstatic version
        (as django.contrib.collectstatic is in INSTALLED_APPS).
        """
        msg = (
            '{% load admin_static %} is deprecated in favor of '
            '{% load static %}.'
        )
        old_url = staticfiles_storage.base_url
        staticfiles_storage.base_url = '/test/'
        try:
            with self.assertWarnsMessage(RemovedInDjango30Warning, msg):
                url = static('path')
            self.assertEqual(url, '/test/path')
        finally:
            staticfiles_storage.base_url = old_url 

def test_inline_admin_warning(self):
        class SongInlineAdmin(TabularInline):
            model = Song

            def has_add_permission(self, request):
                return super().has_add_permission(request)

        class BandAdmin(ModelAdmin):
            inlines = [SongInlineAdmin]

        msg = (
            "Update SongInlineAdmin.has_add_permission() to accept a "
            "positional `obj` argument."
        )
        with self.assertWarnsMessage(RemovedInDjango30Warning, msg):
            self.assertIsValid(BandAdmin, Band) 

def test(self):
        """
        admin_static.static points to the collectstatic version
        (as django.contrib.collectstatic is in INSTALLED_APPS).
        """
        msg = (
            '{% load admin_static %} is deprecated in favor of '
            '{% load static %}.'
        )
        old_url = staticfiles_storage.base_url
        staticfiles_storage.base_url = '/test/'
        try:
            with self.assertWarnsMessage(RemovedInDjango30Warning, msg):
                url = static('path')
            self.assertEqual(url, '/test/path')
        finally:
            staticfiles_storage.base_url = old_url 

def xreadlines(self):
        warnings.warn(
            'HttpRequest.xreadlines() is deprecated in favor of iterating the '
            'request.', RemovedInDjango30Warning, stacklevel=2,
        )
        yield from self 

def xreadlines(self):
        warnings.warn(
            'HttpRequest.xreadlines() is deprecated in favor of iterating the '
            'request.', RemovedInDjango30Warning, stacklevel=2,
        )
        yield from self 

def test_field_name_kwarg_deprecation(self):
        Person.objects.create(name='Deprecator', birthday=datetime(1950, 1, 1))
        msg = (
            'The field_name keyword argument to earliest() and latest() '
            'is deprecated in favor of passing positional arguments.'
        )
        with self.assertWarnsMessage(RemovedInDjango30Warning, msg):
            Person.objects.latest(field_name='birthday') 

def test_override_settings_warning(self):
        with self.assertRaisesMessage(RemovedInDjango30Warning, self.msg):
            with self.settings(DEFAULT_CONTENT_TYPE='text/xml'):
                pass 

def test_settings_init_warning(self):
        settings_module = ModuleType('fake_settings_module')
        settings_module.DEFAULT_CONTENT_TYPE = 'text/xml'
        settings_module.SECRET_KEY = 'abc'
        sys.modules['fake_settings_module'] = settings_module
        try:
            with self.assertRaisesMessage(RemovedInDjango30Warning, self.msg):
                Settings('fake_settings_module')
        finally:
            del sys.modules['fake_settings_module'] 

def test_templatetag_deprecated(self):
        msg = '{% load staticfiles %} is deprecated in favor of {% load static %}.'
        template = "{% load staticfiles %}{% static 'main.js' %}"
        with self.assertWarnsMessage(RemovedInDjango30Warning, msg):
            template = Template(template)
        rendered = template.render(Context())
        self.assertEqual(rendered, 'https://example.com/assets/main.js') 

def test_static_deprecated(self):
        msg = (
            'django.contrib.staticfiles.templatetags.static() is deprecated in '
            'favor of django.templatetags.static.static().'
        )
        with self.assertWarnsMessage(RemovedInDjango30Warning, msg):
            url = static('main.js')
        self.assertEqual(url, 'https://example.com/assets/main.js') 

def test_field_name_kwarg_deprecation(self):
        Person.objects.create(name='Deprecator', birthday=datetime(1950, 1, 1))
        msg = (
            'The field_name keyword argument to earliest() and latest() '
            'is deprecated in favor of passing positional arguments.'
        )
        with self.assertWarnsMessage(RemovedInDjango30Warning, msg):
            Person.objects.latest(field_name='birthday') 

def test_override_settings_warning(self):
        with self.assertRaisesMessage(RemovedInDjango30Warning, self.msg):
            with self.settings(DEFAULT_CONTENT_TYPE='text/xml'):
                pass 

def test_settings_init_warning(self):
        settings_module = ModuleType('fake_settings_module')
        settings_module.DEFAULT_CONTENT_TYPE = 'text/xml'
        settings_module.SECRET_KEY = 'abc'
        sys.modules['fake_settings_module'] = settings_module
        try:
            with self.assertRaisesMessage(RemovedInDjango30Warning, self.msg):
                Settings('fake_settings_module')
        finally:
            del sys.modules['fake_settings_module'] 

def test_deprecation(self):
        msg = (
            'Remove the context parameter from CashFieldDeprecated.from_db_value(). '
            'Support for it will be removed in Django 3.0.'
        )
        CashModelDeprecated.objects.create(cash='12.50')
        with self.assertWarnsMessage(RemovedInDjango30Warning, msg):
            instance = CashModelDeprecated.objects.get()
        self.assertIsInstance(instance.cash, Cash) 

def warnings_as_errors():
    """
    Convert warnings to errors. This should only affect unit tests, letting pylint and other plugins
    raise DeprecationWarnings without erroring.
    """
    try:
        warnings.resetwarnings()
        warnings.simplefilter('error')
        # For celery
        warnings.simplefilter('ignore', category=ImportWarning)
        warnings.filterwarnings(
            "ignore",
            message="'async' and 'await' will become reserved keywords in Python 3.7",
            category=DeprecationWarning,
        )
        warnings.filterwarnings(
            "ignore",
            message=(
                "Using or importing the ABCs from 'collections' instead of "
                "from 'collections.abc' is deprecated since Python 3.3,and in 3.9 it will stop working"
            ),
            category=DeprecationWarning
        )
        warnings.filterwarnings(
            "ignore",
            message=(
                "Using or importing the ABCs from 'collections' instead of "
                "from 'collections.abc' is deprecated, and in 3.8 it will stop working"
            ),
            category=DeprecationWarning
        )
        # For compatibility modules in various libraries
        warnings.filterwarnings(
            "ignore",
            module=".*(compat|permission_tags).*",
        )
        # For pysftp
        warnings.filterwarnings(
            "ignore",
            category=UserWarning,
            message='Failed to load HostKeys',
        )
        # For Django 3.0 compatibility, which we don't care about yet
        warnings.filterwarnings("ignore", category=RemovedInDjango30Warning)

        yield
    finally:
        warnings.resetwarnings()