`node:test` custom reporters get `test:stdout` and `test:stderr` events before `test:dequeue`

Version

v22.2.0

Platform

Linux 6a770f0f664c 6.6.26-linuxkit #1 SMP Sat Apr 27 04:13:19 UTC 2024 aarch64 GNU/Linux

Subsystem

test_runner

What steps will reproduce the bug?

Create a folder with these files:

index.test.mjs:

import { it } from "node:test";

it("test", () => {
  console.log("message from the test");
});

reporter.mjs:

import util from "node:util";

export default async (source) => {
  for await (const event of source) {
    if (event.type === "test:stdout") {
      console.log(event.type, util.inspect(event.data.message));
    }

    if (event.type === "test:dequeue") {
      console.log(event.type, event.data.name);
    }
  }
};

and run

node --test --test-reporter=./reporter.mjs

which will print

test:dequeue index.test.mjs
test:stdout 'message from the test\n'
test:dequeue test

How often does it reproduce? Is there a required condition?

It always does the same

What is the expected behavior? Why is that the expected behavior?

I expected test:dequeue test to be printed before test:stdout 'message from the test\n' as the documentation states "Emitted when a test is dequeued, right before it is executed."

What do you see instead?

The test:stdout event is emitted before the test:dequeue, which makes it impossible to understand which test was running when the message was written to stdout.

Additional information

No response

首先，使用 index.test.mjs 和 reporter.mjs 运行报告中的命令，以重现事件顺序。阅读 node:test test_runner 对 reporter-event 的处理，并为此情况添加覆盖；完成的标准是，对于该测试的输出，test:dequeue 在 test:stdout 之前可被观察到，符合文档所述的语义。