如何在 pytest 中将自定义部分添加到终端报告

In pytest，当测试用例失败时，您会在报告中看到以下类别：

• 失败详情
• 捕获的标准输出调用
• 捕获的 stderr 调用
• 捕获的调用日志

我想添加一些额外的自定义部分（我有一个并行运行的服务器，并且希望在专用部分中显示该服务器记录的信息）。

我怎样才能做到这一点（如果可能的话）？

Thanks

NOTE:

我目前在源代码中找到了以下内容，但不知道这是否是正确的方法

nodes.py

class Item(Node):
    ...
    def add_report_section(self, when, key, content):
        """
        Adds a new report section, similar to what's done internally
        to add stdout and stderr captured output:: 
        ...
        """

报告.py

class BaseReport:
    ...

    @property
    def caplog(self):
        """Return captured log lines, if log capturing is enabled

        .. versionadded:: 3.5
        """
        return "\n".join(
            content for (prefix, content) in self.get_sections("Captured log")
        )

要将自定义部分添加到终端输出，您需要附加到report.sections列表。这可以在以下位置完成pytest_report_teststatus直接 hookimpl，或间接在其他钩子中（通过钩子包装器）；实际的实现在很大程度上取决于您的特定用例。例子：

# conftest.py

import os
import random
import pytest

def pytest_report_teststatus(report, config):
    messages = (
        'Egg and bacon',
        'Egg, sausage and bacon',
        'Egg and Spam',
        'Egg, bacon and Spam'
    )

    if report.when == 'teardown':
        line = f'{report.nodeid} says:\t"{random.choice(messages)}"'
        report.sections.append(('My custom section', line))


def pytest_terminal_summary(terminalreporter, exitstatus, config):
    reports = terminalreporter.getreports('')
    content = os.linesep.join(text for report in reports for secname, text in report.sections)
    if content:
        terminalreporter.ensure_newline()
        terminalreporter.section('My custom section', sep='-', blue=True, bold=True)
        terminalreporter.line(content)

测试示例：

def test_spam():
     assert True

def test_eggs():
     assert True


def test_bacon():
     assert False

运行测试时，您应该看到My custom section底部的标题为蓝色，并包含每个测试的消息：

collected 3 items

test_spam.py::test_spam PASSED
test_spam.py::test_eggs PASSED
test_spam.py::test_bacon FAILED

============================================= FAILURES =============================================
____________________________________________ test_bacon ____________________________________________

    def test_bacon():
>        assert False
E        assert False

test_spam.py:9: AssertionError
---------------------------------------- My custom section -----------------------------------------
test_spam.py::test_spam says:   "Egg, bacon and Spam"
test_spam.py::test_eggs says:   "Egg and Spam"
test_spam.py::test_bacon says:  "Egg, sausage and bacon"
================================ 1 failed, 2 passed in 0.07 seconds ================================