'When creating a @is_default filter with no existing filter, that new
filter gets the default flag'

def test_new_no_filter(self):

    Filters = self.env['ir.filters'].sudo(self.USER_ID)
    Filters.create_or_replace({'name': 'a', 'model_id': 'ir.filters', 'user_id': self.USER_ID, 'is_default': True})
    filters = Filters.get_filters('ir.filters')
    self.assertItemsEqual(map(noid, filters), [dict(name='a', user_id=self.USER_NG, is_default=True, domain='[]', context='{}', sort='[]')])
