wasmtime / PR #12600 wasi-sockets: Align stream tests wit... · git-wasmtime

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Topic: wasmtime / PR #12600 wasi-sockets: Align stream tests wit...

Wasmtime GitHub notifications bot (Feb 16 2026 at 19:32):

badeend requested wasmtime-wasi-reviewers for a review on PR #12600.

Wasmtime GitHub notifications bot (Feb 16 2026 at 19:32):

badeend opened PR #12600 from badeend:tcp-streams-once to bytecodealliance:main:

Aside from test_tcp_read_cancellation, all other P3 TCP stream tests were transliterated from their P2 counterpart. Some of those ex-P2 tests were testing the interaction between the old tcp-socket::shutdown method and its effect of the input/output streams. In P3, shutdown is called automatically when the stream is dropped, so that test code is not really relevant in P3.

This PR:

Rewrites/renames/removes some existing tests.

Adds test_tcp_send_drops_stream_when_remote_shutdown: The SendStreamConsumer did not handle EPIPE correctly yet.

Adds test_tcp_stream_lifetimes to test the new behavior from https://github.com/WebAssembly/WASI/pull/870

Adds test_tcp_receive_once & test_tcp_send_once. Because tcp-socket::send/receive may be called successfully at most once.

To make this work, I've refactored the Connected, Receiving & P2Streaming states into one.