如何从pytest中获取通过、失败和跳过的测试总数 [英] How to get the total number of tests passed, failed and skipped from pytest

问题描述

如何在pytest中获取一个test session的统计信息?

How can I get to the statistics information of a test session in pytest?

我尝试在 conftest.py 文件中定义 pytest_sessionfinish，但我只看到 testsfailed 和 testscollected属性在那里.

I've tried to define pytest_sessionfinish in the conftest.py file, but I only see testsfailed and testscollected attributes on there.

我还需要知道通过、跳过的测试数量以及花费的总时间.由于 pytest 在每个会话结束时打印该信息，我认为有一种编程方式可以检索该信息.

I also need to know the number of tests passed, skipped and the total time it took. Since pytest prints that info at the end of each session, I assume there's a programmatic way to retrieve that.

推荐答案

使用 pytest_terminal_summary 钩子.统计信息由 terminalreporter 对象提供.示例:

Use the pytest_terminal_summary hook. The stats are provided by the terminalreporter object. Example:

# conftest.py

def pytest_terminal_summary(terminalreporter, exitstatus, config):
    print('passed amount:', len(terminalreporter.stats['passed']))
    print('failed amount:', len(terminalreporter.stats['failed']))
    print('xfailed amount:', len(terminalreporter.stats['xfailed']))
    print('skipped amount:', len(terminalreporter.stats['skipped']))

    duration = time.time() - terminalreporter._sessionstarttime
    print('duration:', duration, 'seconds')

不幸的是，_pytest.terminal.TerminalReporter 不是 公共 API，所以最好检查 它的代码直接.

Unfortunately, _pytest.terminal.TerminalReporter isn't part of the public API yet, so it's best to inspect its code directly.

如果您需要访问另一个钩子(如 pytest_sessionfinish)中的统计信息，请使用插件管理器，例如:

If you need to access the stats in another hook like pytest_sessionfinish, use the plugin manager, e.g.:

def pytest_sessionfinish(session, exitstatus):
    reporter = session.config.pluginmanager.get_plugin('terminalreporter')
    print('passed amount:', len(reporter.stats['passed']))
    ...

但是，根据您所处的钩子，您可能无法获得完整的统计数据/正确的持续时间，因此建议谨慎.

However, depending on what hook you are in, you may not get the complete stats/correct duration, so caution advised.

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