python - 补丁 django.conf 设置不会改变值

Question

我有VOUCHERED_PEOPLE，base.py我需要测试它，dummy 我已经阅读了这个才能得到settings.VOUCHERED_PEOPLE补丁，但它在 Django2 中不起作用

utils.py

from django.conf import settings
def get_voucher_people(mobile_phone: str) -> typing.Dict[str, typing.Union[str, int]]:
    """Read name from base.py"""
    for record in settings.VOUCHERED_PEOPLE:
        if record['mobile_phone'] == mobile_phone:
            return record
    return None

base.py

VOUCHERED_PEOPLE = [{...}, {...}]

tests.py

with patch('poinkbackend.apps.vouchers.utils.settings', VOUCHERED_PEOPLE=dummy):
    from pprint import pprint
    import ipdb;
    ipdb.set_trace()
    give_voucher(sarit.userprofile, True)

尝试1：

with patch.object(settings, 'VOUCHERED_PEOPLE') as mock_settings:
    mock_settings.return_value = dummy

这不起作用。settings.VOUCHERED_PEOPLE是一个函数。我必须执行它才能通过settings.VOUCHERED_PEOPLE()

问题：
补丁不起作用。做我的不是改变价值dummy

问：
我哪里错了？

Answer 1

有一个特定的上下文管理器用于修改测试中的设置：

with self.settings(VOUCHERED_PEOPLE=dummy):
    ...

使用pytest-django，可以作为fixture使用settings，直接修改；它将在每次测试结束时恢复。

def test_vouchered_people(settings):
    settings.VOUCHERED_PEOPLE=dummy
    ...