说明：httprunner 结合 pytest 的前后置方式

1. 用例级别前后置

1.1. setup teardown

class TestCaseRefTestcase(HttpRunner):
    # 用例级别前后置
    def setup(self):
        logger.warning("------用例级别前置")

    def teardown(self):
        logger.warning("------用例级别后置")

    config = (
        Config("request methods testcase: reference testcase")
        .variables(
            **{
                "foo1": "testsuite_config_bar1",
                "expect_foo1": "testsuite_config_bar1",
                "expect_foo2": "config_bar2",
            }
        )
        .base_url("https://postman-echo.com")
        .verify(False)
    )

    teststeps = [
        Step(
            RunTestCase("request with functions")
            .with_variables(
                **{"foo1": "testcase_ref_bar1", "expect_foo1": "testcase_ref_bar1"}
            )
            .call(Requests)
            .export(*["foo3"])
        ),
        Step(
            RunRequest("post form data")
            .with_variables(**{"foo1": "bar1"})
            .post("/post")
            .with_headers(
                **{
                    "User-Agent": "${get_user_agent()}",
                    "Content-Type": "application/x-www-form-urlencoded",
                }
            )
            .with_data("foo1=$foo1&foo2=$foo3")
            .validate()
            .assert_equal("status_code", 200)
            .assert_equal("body.form.foo1", "bar1")
            .assert_equal("body.form.foo2", "bar21")
        ),
    ]


if __name__ == "__main__":
    TestCaseRefTestcase().test_start()

2. 类级别前后置

2.1. setup_class

    def setup_class(self):
        logger.warning("------类级别前置")

2.2. teardown_class

    def teardown_class(self):
        logger.warning("------类级别后置")

3. 模块级别前后置

3.1. conftest.py

import uuid
from typing import List

import pytest
from httprunner import Config, Step
from loguru import logger


@pytest.fixture(scope="session", autouse=True)
def session_fixture(request):
    """setup and teardown each task"""
    logger.warning(f"-------conftest模块级别前置---------")
    total_testcases_num = request.node.testscollected
    testcases = []
    for item in request.node.items:
        testcase = {
            "name": item.cls.config.name,
            "path": item.cls.config.path,
            "node_id": item.nodeid,
        }
        testcases.append(testcase)

    logger.debug(f"collected {total_testcases_num} testcases: {testcases}")

    yield

    logger.debug(f"teardown task fixture")
    logger.warning(f"-------conftest模块级别后置---------")

    # teardown task
    # TODO: upload task summary


@pytest.fixture(scope="function", autouse=True)
def testcase_fixture(request):
    """setup and teardown each testcase"""
    logger.warning(f"-------conftest函数级别前置---------")
    config: Config = request.cls.config
    teststeps: List[Step] = request.cls.teststeps

    logger.debug(f"setup testcase fixture: {config.name} - {request.module.__name__}")

    def update_request_headers(steps, index):
        for teststep in steps:
            if teststep.request:
                index += 1
                teststep.request.headers["X-Request-ID"] = f"{prefix}-{index}"
            elif teststep.testcase and hasattr(teststep.testcase, "teststeps"):
                update_request_headers(teststep.testcase.teststeps, index)

    # you can update testcase teststep like this
    prefix = f"HRUN-{uuid.uuid4()}"
    update_request_headers(teststeps, 0)

    yield
    logger.warning(f"-------conftest函数级别前置---------")
    logger.debug(
        f"teardown testcase fixture: {config.name} - {request.module.__name__}"
    )

    summary = request.instance.get_summary()
    logger.debug(f"testcase result summary: {summary}")

4. 优先级顺序效果展示

testcases\debug\ref_testcase_test.py 2024-03-01 17:55:21.271 | WARNING  | testcases.debug.conftest:session_fixture:12 - -------conftest模块级别前置---------
2024-03-01 17:55:21.273 | DEBUG    | testcases.debug.conftest:session_fixture:23 - collected 1 testcases: [{'name': 'request methods testcase: reference testcase', 'path': 'D:\\httprunner\\demo\\testcases\\debug\\ref_testcase_test.py', 'node_id': 'testcases/debug/ref_testcase_test.py::TestCaseRefTestcase::test_start'}]
2024-03-01 17:55:21.274 | WARNING  | testcases.debug.ref_testcase_test:setup_class:18 - ------类级别前置
2024-03-01 17:55:21.275 | WARNING  | testcases.debug.conftest:testcase_fixture:37 - -------conftest函数级别前置---------
2024-03-01 17:55:21.275 | DEBUG    | testcases.debug.conftest:testcase_fixture:41 - setup testcase fixture: request methods testcase: reference testcase - testcases.debug.ref_testcase_test
2024-03-01 17:55:21.276 | WARNING  | testcases.debug.ref_testcase_test:setup:25 - ------用例级别前置