Adds an end-to-end MoQ round-trip test and lands the highest-severity
findings from a 3-agent audit (protocol / ViewModel / Android lifecycle)
of the M5–M7 + Activity work.
Round-trip test (`:nestsClient` MoqRoundTripTest):
- Two MoqSession.client() instances (publisher + subscriber) talk
through a hand-rolled in-test relay coroutine that mirrors a real
MoQ relay's wire behavior (forwards CLIENT_SETUP / SERVER_SETUP /
ANNOUNCE / SUBSCRIBE / SUBSCRIBE_OK / OBJECT_DATAGRAM).
- 100-Opus-frame test exercises the full publisher → wire →
subscriber path, asserting payload bytes + monotonic group/object
ids round-trip correctly. Catches any drift between our publisher
and our own subscriber's wire format.
- Second test verifies SUBSCRIBE_ERROR(TRACK_DOES_NOT_EXIST) flows
back as MoqProtocolException when the publisher hasn't openTrack'd.
MoQ protocol fixes (CRITICAL audit findings):
- SubscribeDoneStatus constants were inverted: had UNSUBSCRIBED=0x01
(peer reads as INTERNAL_ERROR) and TRACK_ENDED=0x00 (peer reads as
UNSUBSCRIBED). Swapped to draft-stable values: UNSUBSCRIBED=0x00,
TRACK_ENDED=0x03.
- Pending CompletableDeferreds for in-flight SUBSCRIBE / ANNOUNCE on
session close were `cancel()`-ed, which propagates as
CancellationException — caller's entire scope cancels instead of
catching a domain MoqProtocolException. Switched all sites to
`completeExceptionally(MoqProtocolException("session closed"))`
including unsubscribe-while-pending-OK.
ViewModel fixes:
- openSubscription race: re-check `activeSubscriptions[pubkey] === slot
&& !closed` AFTER the suspending `subscribeSpeaker` returns; if the
user removed the speaker mid-flight, fire-and-forget UNSUBSCRIBE
rather than attaching a leaked SubscribeHandle + AudioRoomPlayer to
a discarded slot.
- Server-initiated `Closed` listener state now triggers
`teardown(targetState=Closed)` and resets the auto-retry counter,
so a transport-died-mid-handshake doesn't leave stale subscriptions
in the VM map until the Activity finishes.
- Cleanup-scope split: `disconnect()` (user-driven) routes the close
through `viewModelScope` (still alive); `onCleared()` routes it
through a process-lived `cleanupScope` (default GlobalScope, tests
pass backgroundScope) so MoQ control frames (UNSUBSCRIBE,
UNANNOUNCE, SUBSCRIBE_DONE) actually land before the QUIC
transport drops, instead of being eaten by the cancelled
viewModelScope.
Android lifecycle fixes:
- AudioRoomBridge.clear() wired into AccountViewModel.onCleared next
to the existing CallSessionBridge.clear() — no more cross-account
AccountViewModel leak after logout/switch.
- registerReceiver flag now gated on Build.VERSION.SDK_INT
TIRAMISU+ — RECEIVER_NOT_EXPORTED on pre-33 devices collides with
RECEIVER_VISIBLE_TO_INSTANT_APPS. PendingIntents stay
package-scoped via setPackage(packageName).
- onUserLeaveHint no longer enters PIP unconditionally: gated on
ui.connection == Connected AND PackageManager
FEATURE_PICTURE_IN_PICTURE present, so PIP-from-lobby /
PIP-on-incompatible-device doesn't leave a frozen full-screen
card in Recents.
- Replaced the process-wide singleton AudioRoomPipActions toggle
Boolean with a per-Activity MutableSharedFlow<Unit> so a stale
emission from a torn-down Activity can't leak into a new one.
ViewModel test was extended with `cleanupScope = backgroundScope`
plumbing so the post-disconnect `listener.close()` assertion remains
observable in the test scheduler.
Verified: spotlessApply clean; :commons:jvmTest (9 tests),
:nestsClient:jvmTest (80 tests including 2 new round-trip), and
:amethyst:compilePlayDebugKotlin all green.
Audit findings deferred to follow-up commits (none ship-blocking):
- Wire layout pinning vs draft-17 vs draft-11 (currently emits a
draft-11-style OBJECT_DATAGRAM; we advertise draft-17). Resolve
via the M4 manual interop pass against nostrnests.
- UNANNOUNCE racing inbound SUBSCRIBE; control-pump cancel half-write
(audit MoQ #5, #6) — small ordering tweaks.
- Two retry coroutines stacking under fast Failed bursts (audit VM #4).
- AudioRoomForegroundService startForeground always-first contract
(audit Android #8).
Claude
f0b27654ba