Paul Kompfner 8631518388 test: cover wait_for_transcript_to_end_user_turn=False aggregator behavior ...

Adds five tests for the delayed-transcript flow on
`LLMUserAggregator`:

- basic flow: `on_user_turn_stopped` fires fast with empty content;
  `on_user_turn_message_finalized` fires later with the populated
  transcript; user message lands in context.
- backstop with no transcript: backstop timer still finalizes the
  turn; message_finalized fires with empty content; no user message
  added to context.
- next-turn precondition violation: a new VAD start fires while the
  previous turn is still pending; the previous turn is force-flushed
  before the new turn begins.
- context-order with assistant response: paired aggregators with a
  late user transcript arriving before the assistant content streams;
  verifies the user message lands in context before the assistant
  message (the conversational-order invariant the design relies on).
- strategy mutation: explicit start/stop strategies are mutated by
  the bundle — `TranscriptionUserTurnStartStrategy` is dropped from
  start, `wait_for_transcript=False` is flipped on the stop strategy
  that had it explicitly set to True.

Tests patch `DEFAULT_TTFS_P99` to keep the backstop fast.

2026-05-15 14:08:50 -04:00

74 KiB

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