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| 1 | +# PR_26175_DELTA_010-runtime-testability-closeout |
| 2 | + |
| 3 | +## Summary |
| 4 | + |
| 5 | +Team Delta completed the report-only runtime testability closeout after PR_26175_DELTA_009 merged to main. |
| 6 | + |
| 7 | +This PR does not change runtime behavior, tests, package commands, UI, browser-owned data, hidden defaults, or fallback behavior. It records the final Delta testability state and confirms the page/service-level testing model is the active direction. |
| 8 | + |
| 9 | +## Scope |
| 10 | + |
| 11 | +- Team: Delta |
| 12 | +- Branch: `PR_26175_DELTA_010-runtime-testability-closeout` |
| 13 | +- Purpose: report-only closeout |
| 14 | +- Runtime feature changes: none |
| 15 | +- New tests: none |
| 16 | +- New npm commands: none |
| 17 | +- New runners: none |
| 18 | +- UI changes: none |
| 19 | + |
| 20 | +## Delta Merge Confirmation |
| 21 | + |
| 22 | +| Work item | Evidence | Status | |
| 23 | +|---|---|---| |
| 24 | +| DELTA_001 Runtime Performance Optimization | Commit `b760048a4` is an ancestor of main; reports exist under `docs_build/dev/reports/`. | PASS | |
| 25 | +| DELTA_002 Shared Runtime Consolidation | Commit `801780b96` is an ancestor of main; reports exist under `docs_build/dev/reports/`. | PASS | |
| 26 | +| DELTA_003 API Client Standardization | GitHub PR #185 merged on 2026-06-25. | PASS | |
| 27 | +| DELTA_004 Runtime Test Expansion | GitHub PR #186 merged on 2026-06-25. | PASS | |
| 28 | +| DELTA_005 Runtime Technical Debt Cleanup | GitHub PR #187 merged on 2026-06-25. | PASS | |
| 29 | +| DELTA_006 Page Service Test Lanes | GitHub PR #189 merged on 2026-06-25. | PASS | |
| 30 | +| DELTA_007 Runtime Service Coverage | GitHub PR #199 merged on 2026-06-25. | PASS | |
| 31 | +| DELTA_008 API Client Service Coverage | GitHub PR #200 merged on 2026-06-25. | PASS | |
| 32 | +| DELTA_009 Replay Event Service Coverage | GitHub PR #201 merged on 2026-06-26. | PASS | |
| 33 | + |
| 34 | +## Testing Model Confirmation |
| 35 | + |
| 36 | +| Requirement | Status | Evidence | |
| 37 | +|---|---|---| |
| 38 | +| `npm test` is the site-wide/all-tests command | PASS | `package.json` keeps `test=node ./scripts/run-node-tests.mjs`. | |
| 39 | +| Page/service-level testing is active | PASS | `test:service:runtime` and `test:service:api` are present. | |
| 40 | +| No Team Delta-specific test command exists | PASS | Package/script guard found no `test:delta-runtime`, `run-delta-runtime`, or `test:delta` command. | |
| 41 | +| No Team Delta validation harness exists | PASS | `scripts/run-delta-runtime-validation.mjs` is absent. | |
| 42 | +| No duplicate test runner/orchestration added by Delta closeout | PASS | Existing `scripts/run-node-test-files.mjs` remains the focused service-file runner. | |
| 43 | + |
| 44 | +## Runtime Testability Coverage |
| 45 | + |
| 46 | +| Area | Page/service lane coverage | |
| 47 | +|---|---| |
| 48 | +| Runtime tick and processing | `npm run test:service:runtime` | |
| 49 | +| Replay clone and timeline behavior | `npm run test:service:runtime` | |
| 50 | +| Runtime event/action/trigger systems | `npm run test:service:runtime` | |
| 51 | +| Final runtime systems coverage | `npm run test:service:runtime` | |
| 52 | +| Shared API client boundary behavior | `npm run test:service:api` | |
| 53 | +| Public API URL resolution | `npm run test:service:api` | |
| 54 | + |
| 55 | +## Validation |
| 56 | + |
| 57 | +| Command | Status | Notes | |
| 58 | +|---|---|---| |
| 59 | +| `npm run test:service:runtime` | PASS | 23/23 targeted Node test files passed after PR_009 merge. | |
| 60 | +| `npm run test:service:api` | PASS | 2/2 targeted Node test files passed. | |
| 61 | +| Package/script guard | PASS | `npm test` unchanged; no team-specific Delta command or harness. | |
| 62 | +| Report verification | PASS | Required PR_010 report files exist. | |
| 63 | +| `git diff --check` | PASS | No whitespace errors after report generation. | |
| 64 | + |
| 65 | +## Manual Notes |
| 66 | + |
| 67 | +- `npm test` was inspected as the site-wide command path and was not changed. |
| 68 | +- Full `npm test` was not required for this report-only PR because no runtime, test, or command implementation changed in PR_010. |
| 69 | +- Source branches are retained; no branch deletion was performed. |
| 70 | +- Historical obsolete draft PR #188 still exists on GitHub but is outside this closeout merge scope and was not modified. |
| 71 | + |
| 72 | +## ZIP |
| 73 | + |
| 74 | +Repo-structured delta ZIP: |
| 75 | + |
| 76 | +`tmp/PR_26175_DELTA_010-runtime-testability-closeout_delta.zip` |
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