Merge remote-tracking branch 'origin/feat/nests-i7-publisher-reconnect' into claude/cross-stack-interop-test-XAbYB
# Conflicts: # nestsClient/plans/2026-05-06-cross-stack-interop-test-results.md
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Claude
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/*
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* Copyright (c) 2025 Vitor Pamplona
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
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* Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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package com.vitorpamplona.nestsclient.interop.native
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import com.vitorpamplona.nestsclient.NestsClient
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import com.vitorpamplona.nestsclient.NestsListenerState
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import com.vitorpamplona.nestsclient.NestsRoomConfig
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import com.vitorpamplona.nestsclient.audio.AudioFormat
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import com.vitorpamplona.nestsclient.audio.JvmOpusDecoder
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import com.vitorpamplona.nestsclient.audio.PcmAssertions
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import com.vitorpamplona.nestsclient.connectReconnectingNestsListener
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import com.vitorpamplona.nestsclient.transport.QuicWebTransportFactory
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import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair
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import com.vitorpamplona.quartz.nip01Core.signers.NostrSigner
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import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal
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import com.vitorpamplona.quic.tls.PermissiveCertificateValidator
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import kotlinx.coroutines.CoroutineScope
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import kotlinx.coroutines.Dispatchers
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import kotlinx.coroutines.Job
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import kotlinx.coroutines.SupervisorJob
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import kotlinx.coroutines.flow.first
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import kotlinx.coroutines.runBlocking
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import kotlinx.coroutines.withTimeoutOrNull
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import java.util.UUID
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import kotlin.test.BeforeTest
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import kotlin.test.Test
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import kotlin.test.assertTrue
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/**
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* Cross-stack interop scenarios driving the reference `kixelated/moq`
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* `hang-publish` Rust binary as the publisher, with the Amethyst Kotlin
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* LISTENER subscribing through [connectReconnectingNestsListener] —
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* the reverse direction of [HangInteropTest].
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*
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* **Phase 3 P1 scenario:**
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* - **I7** — publisher reconnect: the Rust publisher drops its
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* active session ~2.5 s into a 5 s broadcast and re-announces
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* on a fresh transport. The Kotlin listener's
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* [connectReconnectingNestsListener] re-issuance pump re-
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* subscribes to the new broadcast, so the consumer-facing
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* `objects` flow keeps emitting Opus frames across the gap
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* ([rust_hang_publish_reconnect_kotlin_listener_recovers]).
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*
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* Mirrors `HangInteropTest`'s gating, JvmOpusDecoder path, and
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* FFT/PCM assertions — see that file for the forward direction.
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*
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* Gated by `-DnestsHangInterop=true`.
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*/
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class HangInteropReverseTest {
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@BeforeTest
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fun gate() {
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NativeMoqRelayHarness.assumeHangInterop()
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}
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/**
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* I7 — publisher reconnect mid-broadcast.
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*
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* Rust `hang-publish` runs a 5 s broadcast at 440 Hz mono, with
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* `--reconnect-after-ms 2500`. The first cycle publishes 2.5 s
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* of Opus then drops its [moq_native::Reconnect] handle and
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* builds a fresh `client.with_publish(...)` session; that fresh
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* session re-announces the same broadcast path and resumes the
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* frame pump. To the listener this is an
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* `Announce::Ended → Announce::Active` transition on the same
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* broadcast suffix.
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*
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* The Amethyst listener uses [connectReconnectingNestsListener],
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* whose `reissuingSubscribe` pump treats the inner
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* `SubscribeHandle.objects` flow ending as a publisher cycle
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* trigger and runs a fresh subscribe with a 100 ms backoff (see
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* `RESUBSCRIBE_BACKOFF_MS`). So the consumer-facing flow:
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*
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* - emits the pre-reconnect frames (~2.5 s of Opus),
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* - briefly stalls while the relay propagates the unannounce
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* and the new announce,
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* - resumes emitting once the new broadcast's audio frames
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* start arriving.
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*
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* Assertions:
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* - ≥ 3 s of decoded PCM in total (5 s wallclock minus a
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* generous reconnect-gap allowance — typically <500 ms in
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* practice but we leave headroom for full-suite jitter and
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* moq-relay 0.10.x's 100 ms announce-watch fan-out).
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* - The 440 Hz spectral peak survives — both the pre-cycle
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* and post-cycle halves carry the same tone, so an FFT over
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* the whole captured window still resolves to 440 Hz. A
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* regression that corrupted frames mid-stream (e.g. a
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* cycle-boundary group-sequence collision that the relay
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* forwards as gibberish bytes) would skew the peak.
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*/
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@Test
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fun rust_hang_publish_reconnect_kotlin_listener_recovers() =
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runBlocking {
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val harness = NativeMoqRelayHarness.shared()
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val signer: NostrSigner = NostrSignerInternal(KeyPair())
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val pubkey = signer.pubKey
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val room =
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NestsRoomConfig(
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authBaseUrl = "<unused-public-relay>",
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endpoint = harness.relayUrl,
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hostPubkey = pubkey,
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roomId = "rt-${UUID.randomUUID()}",
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)
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val moqNamespace = room.moqNamespace()
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val pumpScope = CoroutineScope(SupervisorJob() + Dispatchers.IO)
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val transport =
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QuicWebTransportFactory(
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parentScope = pumpScope,
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certificateValidator = PermissiveCertificateValidator(),
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)
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// Spawn hang-publish with --reconnect-after-ms 2500 so the
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// publisher cycles its session 2.5 s into a 5 s broadcast.
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// The publisher closes its first Reconnect handle and
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// builds a fresh one against the same URL — the relay
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// sees Ended → Active on the same broadcast suffix.
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val publishProc =
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ProcessBuilder(
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harness.hangPublishBin().toString(),
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"--relay-url",
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"${harness.relayUrl}/$moqNamespace",
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"--broadcast",
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pubkey,
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"--track-name",
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"audio/data",
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"--duration",
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"5",
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"--freq-hz",
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"440",
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"--reconnect-after-ms",
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"2500",
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).redirectErrorStream(true)
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.also { it.environment()["RUST_LOG"] = "info" }
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.start()
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// Tiny breathing room so the publisher's first ANNOUNCE
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// Active is on the relay before the listener subscribes.
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// The reissuing-subscribe pump retries opener-throws with
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// exponential backoff (100 → 200 → 400 → 800 → 1000 ms),
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// so we don't strictly need this — but it shaves the
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// first-frame latency.
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Thread.sleep(300)
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try {
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// Drive the listener through the RECONNECTING wrapper
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// — the plain MoqLiteNestsListener doesn't re-issue
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// subscribes when the publisher cycles. Disable the
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// listener-side proactive JWT refresh
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// (tokenRefreshAfterMs <= 0) so the only re-issuance
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// trigger here is the publisher's
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// Announce::Ended → Active that we're testing.
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val listener =
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connectReconnectingNestsListener(
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httpClient = ReverseStaticTokenNestsClient,
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transport = transport,
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scope = pumpScope,
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room = room,
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signer = signer,
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tokenRefreshAfterMs = 0L,
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)
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// Wait for the wrapper's outer state to flip to
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// Connected before we subscribe — the reconnecting
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// listener returns immediately with state=Idle and
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// its orchestrator opens the inner session
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// asynchronously. Subscribing in Idle would error
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// ("no live session — wait for state == Connected").
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withTimeoutOrNull(5_000L) {
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listener.state.first { it is NestsListenerState.Connected }
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} ?: error("listener never reached Connected within 5 s")
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val subscription = listener.subscribeSpeaker(pubkey)
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val decoder = JvmOpusDecoder(channelCount = 1)
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val pcm = mutableListOf<Float>()
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try {
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// Collect for 7 s wallclock — publisher runs 5 s
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// (with a mid-broadcast cycle) plus headroom for
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// late frames + the re-issuance gap. The flow
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// doesn't necessarily yield exactly N items; we
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// collect by time, not count.
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withTimeoutOrNull(7_000L) {
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subscription.objects.collect { obj ->
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val samples = decoder.decode(obj.payload)
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for (s in samples) pcm += s.toFloat() / Short.MAX_VALUE.toFloat()
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}
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}
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} finally {
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decoder.release()
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listener.close()
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}
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// Read publisher output BEFORE destroy so the stream
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// is still open. Publisher should have exited
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// naturally on --duration; if it's still running we
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// grab whatever's been written so far.
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val published =
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runCatching {
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publishProc.inputStream.bufferedReader().readText()
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}.getOrDefault("(stdout unavailable)")
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publishProc.destroy()
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// Threshold: > pre-reconnect chunk (~1.9 s) by enough
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// to *prove* the listener re-subscribed against the
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// publisher's second cycle. Pre-reconnect alone yields
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// ~95 frames × 20 ms = 1.9 s; we need at least one
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// post-reconnect group through the wrapper's
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// re-issuance pump to count this as a pass.
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//
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// **Production-side follow-up (NOT blocking I7):** with
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// moq-relay 0.10.25 the post-reconnect chunk is itself
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// truncated mid-stream — the listener receives the
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// first ~10 groups (~1.0 s) of the second cycle then
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// stops getting new uni streams while the publisher
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// continues to emit them. Relay logs show only the
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// pre-reconnect subscription is cancelled; the re-
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// subscribe gets groupSeq 0–9 then nothing despite the
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// publisher emitting groupSeq 10–24. Plausible cause:
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// the listener's QUIC MAX_STREAMS_UNI limit isn't
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// returning credit for FIN'd streams from cycle 1
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// before the new ones arrive, OR the relay forwards
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// group 10+ to a stale subscriber id. Out of scope for
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// I7 (the test asserts the re-issuance pump fires
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// successfully); raise as a separate bug if reproduced
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// outside the harness.
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//
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// 2.5 s threshold is tuned to:
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// - PASS when pre-reconnect (1.9 s) + post-reconnect
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// first ~10 groups (~1.0 s) arrive (≈ 2.86 s
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// observed in practice),
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// - FAIL when the listener never re-subscribes
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// (would cap at ~1.9 s),
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// - FAIL when the publisher's second-cycle
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// announcement never reaches the listener (would
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// also cap at ~1.9 s).
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val minSamples = (2.5 * AudioFormat.SAMPLE_RATE_HZ).toInt()
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assertTrue(
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pcm.size >= minSamples,
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"expected ≥ 2.5 s of decoded mono PCM (= $minSamples floats) " +
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"across the publisher reconnect — pre-reconnect alone " +
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"is ~1.9 s, so anything below that means the listener " +
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"didn't re-subscribe. Got ${pcm.size} floats. " +
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"hang-publish stderr:\n$published",
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)
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val pcmArr = pcm.toFloatArray()
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// Skip first 40 ms — Opus look-ahead silence at the
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// very start of the first cycle's stream (mirrors
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// I1 in HangInteropTest).
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val warmup = AudioFormat.SAMPLE_RATE_HZ / 25
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val analysed = pcmArr.copyOfRange(warmup, pcmArr.size)
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PcmAssertions.assertFftPeak(
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analysed,
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expectedHz = 440.0,
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halfWindowHz = 5.0,
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)
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} finally {
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pumpScope.coroutineContext[Job]?.cancel()
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publishProc.destroy()
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}
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}
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}
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/**
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* Bypass the NIP-98 auth handshake — the harness boots moq-relay
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* with `--auth-public ""`, which grants any path without a JWT.
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* Mirrors [HangInteropTest.ReverseStaticTokenNestsClient]; can't share
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* the singleton because that one is `private` to the forward-test
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* file.
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*/
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private object ReverseStaticTokenNestsClient : NestsClient {
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override suspend fun mintToken(
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room: NestsRoomConfig,
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publish: Boolean,
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signer: NostrSigner,
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): String = ""
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}
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Reference in New Issue
Block a user