TST-08: Testing and hardening strategy analysis

[Chris0Jeky]

Closes #143

Summary

• Analyzed gaps in current hardening/testing posture across MCP integrations, deployment/container runtime, operational reliability, and security checks
• Created docs/analysis/2026-03-29_testing-hardening-strategy.md with risk-ranked gap analysis and 15 proposed follow-up issues
• Updated docs/STATUS.md with analysis delivery note

Key Findings

• Current posture is strong: 1400+ automated tests, comprehensive CI topology, established security baselines
• Highest-ROI gaps: CI automation of existing manual validation and supply-chain security scanning
• 15 proposed issues across 4 priority tiers with acceptance criteria and execution sequencing

Proposed Issue Breakdown

• Priority I (SEC-20 to SEC-22): SAST, secret scanning, container image scanning
• Priority II (SEC-23, OPS-21 to OPS-24): dependency blocking, container smoke, drill/MCP/Terraform CI
• Priority III (TST-27 to TST-29, SEC-24): repository tests, view tests, router tests, DAST
• Priority IV (TST-30, TST-31, OPS-25, SEC-25): OpenAPI snapshots, shutdown tests, CSP reporting

Test plan

• Analysis document accurately reflects what exists in the repo
• Gap assessments are grounded in actual file/directory inspection
• Proposed issues have specific acceptance criteria (not vague)
• Priority assignments are justified by risk/ROI
• Execution order respects dependencies

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[Chris0Jeky]

Adversarial Self-Review

Issues Found and Fixed

1. False claim: view-level component tests are sparse. In reality, 14 view spec files exist covering all primary views (HomeView, TodayView, InboxView, ReviewView, BoardView, ActivityView, etc.). Corrected the analysis to remove this inaccurate gap and replaced the TST-28 proposal with board sub-store isolation tests instead.

2. False claim: SensitiveDataRedactor has no dedicated test file. backend/tests/Taskdeck.Application.Tests/Security/SensitiveDataRedactorTests.cs exists. Removed from gaps list.

3. Undercounted frontend test files. Updated the "What exists" summary with accurate counts: 13 composable specs, 14 view specs, 16 component specs.

Remaining Accuracy Assessment

• Gap assessments for backend infrastructure repositories (0 dedicated tests for 26 repo classes) verified by directory inspection
• CI workflow gap claims (no MCP/Terraform/drills wiring) verified by inspecting all 19 workflow files
• Security scanner gaps (no SAST/secret scanning/image scanning) verified by workflow content inspection
• Container runtime smoke gap verified: reusable-container-images.yml builds but does not start/health-check
• Worker coverage gap (no LlmQueueWorker/WorkerHeartbeatWorker test files) verified by listing backend/tests/Taskdeck.Api.Tests/

Priority Assessment Review

• Priority I items (SAST, secrets, image scanning) are correctly high-priority for a product approaching beta
• Priority II items correctly leverage existing infrastructure (scripts already support CI mode)
• Priority III/IV items correctly represent lower-risk depth improvements with existing transitive coverage as safety net

No Major Testing Areas Missed

The analysis covers backend, frontend, CI, MCP, deployment, ops reliability, and security. The one area not deeply covered is performance regression testing beyond k6 load profiles, but the existing PERFORMANCE_BUDGETS.md and instrumentation composable provide the foundation — this could be a future follow-up.

[Chris0Jeky]

Fresh Adversarial Review

I verified every factual claim in the analysis document against the actual repository contents. Here are the findings.

Critical Issues

1. Multiple test-count claims are numerically wrong.

Claim in analysis	Actual count	Direction
"40+ application service test files"	55 test files (*Tests.cs, excl. obj)	Under-counted by ~15
"50+ API test files"	44 test files (excl. obj and factory)	Over-counted by ~6
"16 component spec files"	27 spec files (15 top-level + 12 UI primitives)	Under-counted by 11
"26 repository classes"	24 concrete repositories (excl. base Repository.cs)	Over-counted by 2
"10 sub-modules" in board sub-store	8 actual sub-modules (excl. index.ts)	Over-counted by 2

These inaccuracies undermine the "grounded in actual file/directory inspection" claim. None individually change the gap analysis conclusions, but collectively they suggest the counts were estimated rather than verified.

2. The infrastructure "zero dedicated tests" claim is partially false.

OutboundWebhookDeliveryRepositoryTests.cs exists in Taskdeck.Api.Tests and directly tests repository behavior (claiming, querying) against a real DB context via TestWebApplicationFactory. The gap is real (23 of 24 repositories lack dedicated tests), but the blanket "zero dedicated tests" statement is factually wrong.

3. Worker names are wrong.

• The analysis refers to "LlmQueueWorker" -- the actual class is LlmQueueToProposalWorker.
• The analysis claims "WorkerHeartbeatWorker lacks dedicated test files" -- there is no WorkerHeartbeatWorker. The class is WorkerHeartbeatRegistry and it has a dedicated test file (WorkerHeartbeatRegistryTests.cs). This is a false gap claim.

Minor Issues

4. Store test count description is misleading.

The analysis says "10 stores with test files (including real + demo specs)." There are indeed 10 unique stores tested, but 18 total spec files (due to .demo.spec.ts and .filtering.spec.ts variants). The phrasing is technically defensible but hides the actual test depth -- 18 spec files across 10 stores is meaningfully stronger than "10 stores with test files" implies.

5. STATUS.md placement is suboptimal.

The new section (dated 2026-03-29) is inserted between two 2026-02-23 sections ("Testing Harness Improvement Wave" and "Outreach CRM Deferred Expansion Track"). Other 2026-03-26 sections exist higher in the file. The new section should be placed with the other late-March entries for consistency.

6. Architecture test description says "8 tests enforcing layer purity and controller conventions."

This is technically correct (2 Facts + 4 InlineData Theory cases + 2 MemberData Theory cases = 8 runtime test cases) but could be clearer. The actual structure is 3 test files with 4 test methods, 2 of which are parameterized. "8 tests" reads as if there are 8 distinct test methods.

7. Missing false-negative: Shared/TestUtilities is not mentioned.

A backend/tests/Shared/TestUtilities directory exists but is not acknowledged in the analysis. This is a minor omission.

Observations

What the analysis gets right:

• The CI gap claims (no SAST, no secret scanning, no container image scanning, MCP/Terraform/drills not wired) are all verified as accurate. No false positives there.
• The priority ranking and ROI justification are well-reasoned. The phased execution order with dependency mapping is genuinely useful.
• The 15 proposed issues all have specific, testable acceptance criteria -- not vague wishlists.
• The overall narrative ("current posture is strong, highest-ROI gaps are CI wiring") is accurate.
• Frontend gap claims (no router tests, no http.ts tests, board sub-stores untested in isolation) are all verified correct.

Self-review quality:
The PR description mentions the self-review caught 2 false positives. The review I found here suggests at least 1 more substantive false positive (WorkerHeartbeatWorker gap that doesn't exist) and several numerical inaccuracies.

Verdict

The analysis is directionally sound -- the gap identification and prioritization are valuable, and most claims hold up under scrutiny. However, the factual accuracy falls below what I'd expect for a "grounded in actual file/directory inspection" deliverable.

Recommended fixes before merge:

1. Correct the 5 numerical inaccuracies in the table above
2. Fix the LlmQueueWorker -> LlmQueueToProposalWorker name
3. Remove or correct the false WorkerHeartbeatWorker gap claim (it has tests)
4. Correct the "zero dedicated tests" claim to "1 dedicated test exists" for infrastructure repos (24 repos, not 26, with 1 tested)
5. Move the STATUS.md section to a more appropriate position among late-March entries