Я пытаюсь перейти с Django 1.11 на 2.2 и сталкиваюсь с некоторыми проблемами с юнит-тестами.
Ранее на Django 1.11 у меня был установлен django -нос и все тесты побежал без проблем. Когда я пытался обновить до Django 2, каждый тест, который каким-либо образом касается базы данных, теперь выдает ошибку:
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ERROR: Test the index page
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Traceback (most recent call last):
File "/opt/puzzlehunt/puzzlehunt_server/huntserver/tests.py", line 115, in test_index
response = get_and_check_page(self, 'huntserver:index', 200)
File "/opt/puzzlehunt/puzzlehunt_server/huntserver/tests.py", line 42, in get_and_check_page
response = test.client.get(reverse(page, kwargs=args))
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/test/client.py", line 517, in get
response = super().get(path, data=data, secure=secure, **extra)
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/test/client.py", line 332, in get
return self.generic('GET', path, secure=secure, **r)
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/test/client.py", line 404, in generic
return self.request(**r)
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/test/client.py", line 485, in request
raise exc_value
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/core/handlers/exception.py", line 35, in inner
response = get_response(request)
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/core/handlers/base.py", line 128, in _get_response
response = self.process_exception_by_middleware(e, request)
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/core/handlers/base.py", line 126, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/opt/puzzlehunt/puzzlehunt_server/huntserver/info_views.py", line 17, in index
curr_hunt = Hunt.objects.get(is_current_hunt=True)
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/db/models/manager.py", line 82, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/db/models/query.py", line 397, in get
num = len(clone)
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/db/models/query.py", line 254, in __len__
self._fetch_all()
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/db/models/query.py", line 1179, in _fetch_all
self._result_cache = list(self._iterable_class(self))
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/db/models/query.py", line 54, in __iter__
results = compiler.execute_sql(chunked_fetch=self.chunked_fetch, chunk_size=self.chunk_size)
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/db/models/sql/compiler.py", line 1066, in execute_sql
cursor.close()
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/MySQLdb/cursors.py", line 85, in close
while self.nextset():
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/MySQLdb/cursors.py", line 173, in nextset
nr = db.next_result()
_mysql_exceptions.OperationalError: (2006, '')
-------------------- >> begin captured logging << --------------------
django.request: ERROR: Internal Server Error: /
Traceback (most recent call last):
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/db/models/sql/compiler.py", line 1063, in execute_sql
cursor.execute(sql, params)
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/db/backends/utils.py", line 68, in execute
return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/db/backends/utils.py", line 77, in _execute_with_wrappers
return executor(sql, params, many, context)
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/db/backends/utils.py", line 80, in _execute
self.db.validate_no_broken_transaction()
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/db/backends/base/base.py", line 437, in validate_no_broken_transaction
"An error occurred in the current transaction. You can't "
django.db.transaction.TransactionManagementError: An error occurred in the current transaction. You can't execute queries until the end of the 'atomic' block.
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/core/handlers/exception.py", line 35, in inner
response = get_response(request)
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/core/handlers/base.py", line 128, in _get_response
response = self.process_exception_by_middleware(e, request)
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/core/handlers/base.py", line 126, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/opt/puzzlehunt/puzzlehunt_server/huntserver/info_views.py", line 17, in index
curr_hunt = Hunt.objects.get(is_current_hunt=True)
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/db/models/manager.py", line 82, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/db/models/query.py", line 397, in get
num = len(clone)
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/db/models/query.py", line 254, in __len__
self._fetch_all()
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/db/models/query.py", line 1179, in _fetch_all
self._result_cache = list(self._iterable_class(self))
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/db/models/query.py", line 54, in __iter__
results = compiler.execute_sql(chunked_fetch=self.chunked_fetch, chunk_size=self.chunk_size)
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/django/db/models/sql/compiler.py", line 1066, in execute_sql
cursor.close()
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/MySQLdb/cursors.py", line 85, in close
while self.nextset():
File "/opt/puzzlehunt/puzzlehunt_server/venv/lib/python3.5/site-packages/MySQLdb/cursors.py", line 173, in nextset
nr = db.next_result()
_mysql_exceptions.OperationalError: (2006, '')
--------------------- >> end captured logging << ---------------------
Это происходит только на Django 2.X и только когда django -Nose тестовый бегун включен. Удаление строки
TEST_RUNNER = 'django_nose.NoseTestSuiteRunner'
из settings.py устраняет проблему, но это не вариант, так как я хотел бы оставить в своих отчетах о покрытии django - от t ie.
Похоже, что эти ошибки вообще не возникают вне модульного тестирования (что, я думаю, имеет смысл, если проблема как-то связана с django -носом).
Вот пример теста от файл test.py:
from django.test import TestCase
from django.urls import reverse
from huntserver import models
def get_and_check_page(test, page, code, args={}):
response = test.client.get(reverse(page, kwargs=args))
test.assertEqual(response.status_code, code)
return response
class InfoTests(TestCase):
fixtures = ["basic_hunt"]
def test_index(self):
"Test the index page"
response = get_and_check_page(self, 'huntserver:index', 200)
self.assertTrue(isinstance(response.context['curr_hunt'], models.Hunt))
Он работает в Debian 9 (растягивание)
mysql - версия:
mysql Ver 15.1 Distrib 10.1.41-MariaDB, for debian-linux-gnu (x86_64) using readline 5.2
стоп-кадр: ( В настоящее время на Django 2.0, но та же ошибка на 2.1 и 2.2)
alabaster==0.7.12
Babel==2.8.0
bootstrap-admin==0.4.3
certifi==2019.11.28
chardet==3.0.4
coverage==4.5.1
decorator==4.1.2
Django==2.0
django-crispy-forms==1.8.1
django-debug-toolbar==1.8
django-nose==1.4.6
django-ratelimit==1.1.0
docutils==0.16
idna==2.8
imagesize==1.2.0
Jinja2==2.10.3
MarkupSafe==1.1.1
mysqlclient==1.3.14
networkx==2.0
nose==1.3.7
packaging==20.0
Pygments==2.5.2
pyparsing==2.4.6
PyPDF2==1.26.0
python-dateutil==2.6.1
pytz==2019.3
requests==2.22.0
six==1.11.0
snowballstemmer==2.0.0
Sphinx==2.3.1
sphinx-rtd-theme==0.4.3
sphinxcontrib-applehelp==1.0.1
sphinxcontrib-devhelp==1.0.1
sphinxcontrib-htmlhelp==1.0.2
sphinxcontrib-jsmath==1.0.1
sphinxcontrib-qthelp==1.0.2
sphinxcontrib-serializinghtml==1.1.3
sqlparse==0.2.3
urllib3==1.25.7
Настройки базы данных:
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'puzzlehunt_db',
'HOST': 'localhost',
'PORT': '3306',
'USER': 'hunt',
'PASSWORD': 'NotMyRealMysqlPassword',
'OPTIONS': {'charset': 'utf8mb4'},
}
}
Я рассмотрел каждую из перечисленных ошибок (проблема транзакции) / «Операционная ошибка»). Многое из того, что я нашел при поиске по ключевым словам, было неприменимо, хотя я все равно попробовал многие решения.
Исходный код для всего проекта можно найти здесь: https://github.com/dlareau/puzzlehunt_server, но Я также рад выбрать другие части кода / настроек, а не заставлять людей искать в репозитории, если есть файл, который может иметь значение.
Редактировать: вот сборка Travis-ci, которая копирует то, что Я вижу на местном уровне: https://travis-ci.org/dlareau/puzzlehunt_server/builds/636368209
Спасибо за любую помощь!