文档集合 Documentation

• Get Started 入门
• How-to Guides 使用指南
• Reference Guides 参考指南
• Explanation 解释

Get Started

1-3 Basic Operation

1. Install Pytest
2. Create your first test
3. Run multiple tests

4. Assert that a certain exception is raised

# content of test_sysexit.py
import pytest


def f():
    raise SystemExit(1)


def test_mytest():
    with pytest.raises(SystemExit):
        f()

5. Group multiple tests in a class

Grouping tests in classes can be beneficial for the following reasons:

• Test organization
• Sharing fixtures for tests only in that particular class
• Applying marks at the class level and having them implicitly apply to all tests

将测试分组在类有以下好处：

• 测试组织
• 仅在特定类中共享测试夹具
• 在类级别应用标记，并让它们隐式地应用于所有测试

Something to be aware of when grouping tests inside classes is that each test has a unique instance of the class. Having each test share the same class instance would be very detrimental to test isolation and would promote poor test practices.

在类内分组测试时需要注意的是，每个测试都有一个唯一的类实例。让每个测试共享同一个类的实例，将非常不利于测试隔离，并会助长不良的测试实践。

6. Request a unique temporary directory for functional tests