如何告诉 pytest-xdist 依次从一个文件夹运行测试，其余的并行运行? [英] How to tell pytest-xdist to run tests from one folder sequencially and the rest in parallel?

问题描述

想象一下，我有 test/unit/... 可以安全地并行运行，而 test/functional/... 还不能并行运行.

Imagine that I have test/unit/... which are safe to run in parallel and test/functional/... which cannot be run in parallel yet.

是否有一种简单的方法可以说服 pytest 依次运行 functional ?考虑到我们正在讨论大量测试，因此更改每个测试函数/方法会非常嘈杂.

Is there an easy way to convince pytest to run the functional ones sequentially? Consider that we are talking about a big number of tests so altering each test function/method would be very noisy.

此时我们使用标记过滤器运行测试，因此我们主要将它们分开运行.不过，我正在寻找一种解决方案，以消除将它们分开运行的需要.

At this moment we run tests with marker filters so mainly we run them separated. Still, I am looking for a solution for removing the need to run them separated.

推荐答案

您可以实现自己的调度程序，其作用类似于 load 或 loadscope，具体取决于测试的模块定义在.示例:

You can implement your own scheduler that acts like load or loadscope, depending on what module the test is defined in. Example:

from xdist.scheduler.loadscope import LoadScopeScheduling


class MyScheduler(LoadScopeScheduling):
    def _split_scope(self, nodeid):
        if 'test/functional' in nodeid:
            return 'functional-tests'
        return nodeid


def pytest_xdist_make_scheduler(config, log):
    return MyScheduler(config, log)

test/functional 下的所有测试将被分组在同一个节点 functional-tests 下(因此在同一个 worker 中运行)，其余的将并行运行像往常一样.

All tests under test/functional will be grouped under the same node functional-tests (and thus run in the same worker), the rest will be run in parallel as usual.

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