Question

我想用pytest“按原样”使用现有的db，但每次开始测试时都会执行对它的操作。

我创建了 conftest.py ：

import pytest
from project import settings

@pytest.fixture(scope='session')

def django_db_setup():
    settings.DATABASES['default'] = {
        'ENGINE': 'django.db.backends.postgresql_psycopg2',
         'NAME':   'PSQLDB',
         'HOST': '127.0.0.1',
         'PORT': '5432',
    }

添加了pytest.ini：

[pytest]
DJANGO_SETTINGS_MODULE=project.settings

这是tests.py：

@pytest.mark.django_db(transaction=False)
class TestExperiment(object):

    @pytest.fixture(autouse=True)
    def setup_stuff(self, db):
        pass

    def test_something(self):

        x=Mymodel.objects.last()
        assert x.p==0

为什么运行py.test app / tests.py会在DB上触发此操作？

如果params为None：                  return self.cursor.execute（sql）E psycopg2.NotSupportedError：无法截断在a中引用的表   外键约束E DETAIL：表“demo_process”   引用“sl2”。 E提示：截断表“demo_process”   同时，或使用TRUNCATE ... CASCADE。

/home/tec1/.virtualenvs/xx/lib/python3.5/site-packages/django/db/backends/utils.py:83：   NotSupportedError

              django.core.management.base.CommandError: Database PSQLDB couldn't be flushed. Possible reasons:
E                 * The database isn't running or isn't configured correctly.
E                 * At least one of the expected database tables doesn't exist.
E                 * The SQL was invalid.
E               Hint: Look at the output of 'django-admin sqlflush'. That's the SQL this command wasn't able to run.

/home/tec1/.virtualenvs/xxx/lib/python3.5/site-packages/django/core/management/commands/flush.py:74: CommandError
============================================================= 1 passed, 1 error in 0.20 seconds ===================

数据库存在，如果我运行runserver它会连接没有问题。

pytest-django使用现有的“db as is”

0 个答案: