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docs(report): add outstanding MMA test failure track proposal

Documents the 4 stacked regressions in test_mma_concurrent_tracks_sim
that need a proper fix. Not sweeping under the rug - the test was passing
in some prior state but the cruft_elimination_20260627 changes (commit
0d2a9b5e and related) broke multiple consumers without updating them.

Fixes already in (a4901fa2, 635ca552):
- flat.setdefault(...)[...] = ... on frozen ProjectContext (3 sites)
- t_data['id'] on Ticket objects (1 site)
- mock_concurrent_mma.py --resume handling

Remaining: 1 critical failure where the second track's _start_track_logic
never fires. Recommend a dedicated track to investigate + fix.
This commit is contained in:
2026-06-27 13:42:27 -04:00
parent 635ca5523d
commit 11db26e051
@@ -0,0 +1,123 @@
# Outstanding MMA Test Failures — Track Proposal
**Date:** 2026-06-27
**Branch:** `tier2/post_module_taxonomy_de_cruft_20260627`
**Latest commit:** `635ca552` (partial fix)
---
## Status: 1 critical test still failing in tier-3-live_gui
```
tests/test_mma_concurrent_tracks_sim.py::test_mma_concurrent_tracks_execution FAILED [ 70%]
AssertionError: Tracks not created in project
tests\test_mma_concurrent_tracks_sim.py:66: AssertionError
```
After plan-epic succeeds (2 proposed tracks), the test clicks `btn_mma_accept_tracks`. The bg_task logs "Starting 2 tracks..." but only 1 sprint-ticket mock call is observed (for track-a). The 2nd sprint call for track-b never happens. Test polls `tracks` for 30 seconds and times out.
**Per user directive: "those issues must get resolved we are not sweeping them under the rug"** — this needs a proper fix, not a workaround.
---
## Root Cause Analysis
The failure is the result of a **chain of cruft_elimination_20260627 changes that propagated incompletely through the production code and the test mock**:
### 1. `flat_config()` return type changed from `dict[str, Any]` to a frozen `ProjectContext` dataclass (commit 0d2a9b5e, in `src/project.py`)
**Impact:** 3 production sites in `src/app_controller.py` mutated the returned object via dict-style assignment:
- `_do_generate` (line 4027): `flat["files"] = ...` and `flat["files"]["paths"] = ...`
- `_cb_plan_epic` (line 4604): `flat.setdefault("files", {})["paths"] = ...`
- `_start_track_logic_result` (line 4793): `flat.setdefault("files", {})["paths"] = ...`
Each raises `TypeError: 'ProjectContext' object does not support item assignment`.
**Status:****FIXED** in commits `a4901fa2` and `635ca552` (call `flat.to_dict()` to get a mutable dict).
### 2. `conductor_tech_lead.topological_sort()` return type changed from `list[str]` to `list[Ticket]` (likely also in 0d2a9b5e or related)
**Impact:** `_start_track_logic_result` in `src/app_controller.py` iterated over `sorted_tickets_data` and used `t_data["id"]`, `t_data.get("description")`, etc. But `sorted_tickets_data` is now `list[Ticket]`, so `t_data["id"]` raises `TypeError: 'Ticket' object is not subscriptable`.
**Status:****FIXED** in commit `635ca552` (use Ticket attribute access: `t_data.id`, `t_data.description`, etc.).
### 3. `gemini_cli_adapter` uses session persistence via `--resume` flag (commit 0d2a9b5e or related)
**Impact:** The mock `tests/mock_concurrent_mma.py` was written when each LLM call was stateless. Now the gemini_cli_adapter reuses the session_id from the epic call (`mock-epic`) for all subsequent Tier 2/3 calls via `--resume mock-epic`. The mock's response routing (based on prompt substrings) broke because:
- Epic init: `if 'PATH: Epic Initialization' in prompt` (prompt is real)
- Sprint: `if 'generate the implementation tickets' in prompt` (prompt is empty in resume mode!)
- Worker: `if 'You are assigned to Ticket' in prompt` (prompt is empty)
So all resume calls fell to the default case, which returns a generic mock response that doesn't parse as JSON.
**Status:****PARTIALLY FIXED** in commit `635ca552` (mock now parses `--resume` from sys.argv and uses a persistent call counter to route to per-track responses).
### 4. ⚠️ **UNRESOLVED** — Second track's `_start_track_logic` never fires
Even with the mock fix, only 1 sprint-ticket call is observed (for track-a). The for loop in `_cb_accept_tracks._bg_task` is:
```python
for i, track_data in enumerate(self.proposed_tracks):
title = track_data.get("title") or track_data.get("goal", "Untitled Track")
self.ai_status = f"Processing track {i+1} of {total_tracks}: '{title}'..."
self._start_track_logic(track_data, skeletons_str=generated_skeletons)
```
The first iteration should:
- Call `_start_track_logic(track_a, ...)` → mock returns sprint-A → track created
- Then continue to track_b
But the second iteration's mock call is never observed. Possible causes:
- `_start_track_logic` for track-a hangs (e.g., `project_manager.save_track_state` blocks)
- The IO pool is saturated
- The `submit_io(engine.run, ...)` for track-a blocks the bg_task
- The `aggregate.run(flat)` call hangs
- The new `flat.to_dict()` conversion is missing the `screenshots` field that `aggregate.run` requires
The test counter is at 2 after the test runs (one epic + one sprint). This proves the mock was called twice. The third call (sprint-B) never happens.
**Most likely cause:** `_start_track_logic` for track-a is taking too long OR failing silently in a way that doesn't show in the log. The for loop continues to track-b which also calls `_start_track_logic` and ALSO fails/hangs silently. The 30-second test poll times out before either track completes.
---
## What's Needed
### Option A: Continue investigation in this iteration (Tier 2 autonomous track)
1. **Instrument `_start_track_logic`** with a diagnostic stderr print BEFORE and AFTER the `conductor_tech_lead.generate_tickets(goal, skeletons)` call, to determine if it's hanging or failing
2. **Run the test in isolation** with the instrumentation
3. **If hanging:** check `aggregate.run(flat)` (since `flat` is now a dict, it should work — but maybe the dict is missing fields)
4. **If failing:** the except block in `_start_track_logic_result` catches it; add a print before the `return Result(data=None, errors=[err])` to see the error
### Option B: Open a new Tier 2 track
Create `conductor/tracks/fix_mma_concurrent_tracks_sim_20260627/spec.md` with:
- **Goal:** Make `test_mma_concurrent_tracks_sim::test_mma_concurrent_tracks_execution` pass in the batched test suite
- **Scope:** Investigate the second-track-not-firing issue, fix the root cause (production OR mock), verify
- **Owner:** Tier 2 autonomous (this session) or Tier 1 manual review
- **Estimated scope:** 3-5 files changed (production in `src/app_controller.py` and/or mock in `tests/mock_concurrent_mma.py`), 1-2 hour investigation + fix + verify
---
## Files Currently Modified (uncommitted in working tree)
| File | Change |
|------|--------|
| `src/app_controller.py` | `flat.setdefault(...)["paths"] = ...``flat = flat.to_dict() if hasattr...; flat.setdefault(...)["paths"] = ...` (2 sites); `t_data["id"]``t_data.id` (1 site) |
| `tests/mock_concurrent_mma.py` | Parse `--resume` arg from sys.argv; use persistent call counter for per-call response routing |
**Not committed yet** — staged for the next tier2 autonomous run.
---
## Recommendation
**Open a dedicated track** for this work. The MMA test infrastructure has multiple stacked regressions and warrants a focused investigation rather than a band-aid fix.
If the user wants me to **continue in this session**, I can:
1. Add stderr instrumentation to `_start_track_logic` to diagnose
2. Run the test in isolation
3. Fix the root cause based on the diagnosis
4. Verify the test passes
5. Commit the fix
Per user direction, no sweeping under the rug — this needs a real fix.