# Track Specification: Test Regression Verification (test_regression_verification_20260307)

## Overview
Verify that all existing tests pass with 0 regressions after recent track implementations (Kill/Abort, Block/Unblock, Pause/Resume, Per-Ticket Model Override).

## Recent Changes

### Tracks Implemented Recently
1. **Kill/Abort Running Workers** - Added worker termination with abort events
2. **Manual Block/Unblock Control** - Added manual block with cascade
3. **Pipeline Pause/Resume** - Added global pause/resume
4. **Per-Ticket Model Override** - Added model selection per ticket

## Current Test Status

### Known Test Files
- tests/test_conductor_engine_abort.py
- tests/test_conductor_abort_event.py
- tests/test_run_worker_lifecycle_abort.py
- tests/test_gui_kill_button.py
- tests/test_manual_block.py
- tests/test_pipeline_pause.py
- tests/test_per_ticket_model.py
- And many more in tests/

## Requirements

### FR1: Full Test Suite Run
- Run ALL tests in tests/ directory
- Verify no regressions introduced

### FR2: Test Categories
- Unit tests for models, conductor, gui
- Integration tests (if any)
- Simulation tests

### FR3: Fix Any Failures
- If tests fail, investigate and fix
- Document any pre-existing failures

### FR4: Test Coverage Verification
- Ensure new features have test coverage

## Acceptance Criteria
- [ ] All tests pass
- [ ] No new regressions
- [ ] Test results documented
