在同一个测试中重用 pytest 固定装置 [英] Reusing pytest fixture in the same test

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问题描述

以下是使用 user 固定装置设置测试的测试代码示例.

Below is an example of test code that uses a user fixture to setup the test.

@pytest.fixture
def user():
    # Setup db connection
    yield User('test@example.com')
    # Close db connection

def test_change_email(user):
    new_email = 'new@example.com'
    change_email(user, new_email)
    assert user.email == new_email

有没有办法在同一个测试中使用同一个夹具生成多个用户对象,如果我想,例如添加批量更改用户电子邮件的功能,并且需要在测试前设置 10 个用户?

Is there a way to generate multiple user objects in the same test using the same fixture, if I wanted to e.g. add functionality for changing user emails in bulk and needed 10 users setup before the test?

推荐答案

pytest 文档有一个工厂作为固定装置"-解决了我的问题的部分.

The pytest documentation had a "factories as fixtures"-section that solved my problem.

特别是这个例子(从链接复制/粘贴):

This example in particular (copy/pasted from the link):

@pytest.fixture
def make_customer_record():

    created_records = []

    def _make_customer_record(name):
        record = models.Customer(name=name, orders=[])
        created_records.append(record)
        return record

    yield _make_customer_record

    for record in created_records:
        record.destroy()


def test_customer_records(make_customer_record):
    customer_1 = make_customer_record("Lisa")
    customer_2 = make_customer_record("Mike")
    customer_3 = make_customer_record("Meredith")

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