Phase 4.5 carry-over from Phase 3. Tests across test_turn_flow.py,
test_meanwhile_turn_flow.py, and the phase3/4 integration suites built
positional canned-response arrays for MockLLMClient — adding a new
classifier call to a code path required updating the array index in
many places.
This change ships tests/fixtures.py with a fluent CannedQueue builder
that lets tests declare classifier expectations by name and call order
instead of by index. Each method appends one item to an internal queue
and returns self for chaining; build() emits the flat list[str] queue
that MockLLMClient(canned=...) already consumes. The mock's contract
is unchanged.
Builder methods cover: parse_turn, detect_addressee, state_update
(with zero_state alias), detect_interjection,
detect_interjection_targeted, detect_scene_close,
detect_event_transitions, summarize_scene_pov, detect_threads,
meanwhile_digest, score_significance, and a narrative() helper for
streaming bot beats. raw() is a passthrough escape hatch.
Migration scope: ship the builder + 2 sanity tests + migrate 3
representative tests in test_turn_flow.py as proof of concept
(test_single_bot_turn_no_guest_regression,
test_turn_with_event_transition_appends_started_event,
test_turn_with_no_active_events_skips_classifier). The remaining
positional-array tests stay as-is; the builder docstring documents
the migration template for Phase 5 work.
Joseph Doherty