Question

在ORM.py文件中：

from peewee import *
db = SqliteDatabase('database.db')

class Device(Model):
    uid = CharField(unique=True, max_length=17)

    class Meta:
        database = db

现在在test.py中我希望monkeypatch原始数据库database.db与test.db

from _pytest.monkeypatch import MonkeyPatch

@pytest.fixture(scope="session")
def monkeysession(request):
    mp = MonkeyPatch()
    yield mp
    mp.undo()


@pytest.fixture(scope='session', autouse=True)
def create_db(monkeysession, request):
    monkeysession.setattr(ORM, 'db', SqliteDatabase('test.db'))

但我的错误（peewee.OperationalError：表“设备”已经存在）表明monkeypatch失败

Answer 1

您可能想查看2.x http://docs.peewee-orm.com/en/latest/peewee/api.html#Using

中的

$ sed '/^leaf-foo.*bar/ s/-/_/' file
dont-touch-these-hyphens
leaf_foo.*bar replace-these-hyphens
leaf_foobar dont-replace-these-hyphens

帮助器

或3.0a中的Using（尚未记录，抱歉）。

还有bind()扩展名，分别位于2.x和3.0a：http://docs.peewee-orm.com/en/latest/peewee/playhouse.html#test_database

如何将monkeypatch sqlite数据库用于测试目的？

1 个答案: