test: Flaky test for Fetch + HTTP/2

[metcoder95]

Bug Description

The following test is unstable and fails from time to time; it requires further research on how to handle it better. An initial guest is a possible race condition but it requires further investigation.

undici/test/fetch/http2.js

Line 177 in e5c9d70

'[Fetch] Should handle h2 request with body (stream)',

Reproducible By

• Any PR, often on v20 tests

Expected Behavior

Logs & Screenshots

    # Subtest: [Fetch] Should handle h2 request with body (stream)
        1..8
        ok 1 - should be equal
        ok 2 - should be equal
        ok 3 - should be equal
        ok 4 - should be equal
        ok 5 - should be equal
        ok 6 - should be equal
        ok 7 - should be equal
        not ok 8 - should be equal

Environment

• Often v20.

Additional context

[KhafraDev]

maybe moving the stream.end() to after the for await?

[metcoder95]

Yeah, most likely that might be the scenario as there's race condition between consuming the request's body, and start doing the assertions