satellite-provider/_docs/03_implementation/batch_03_report.md

Batch 3 Implementation Report

Batch: 3 of 3 (Implement Tests / Step 6) Date: 2026-05-10 Tasks: AZ-289 (Integration tests: route map processing + ZIP), AZ-290 (Non-functional tests: perf, resilience, security, limits)

Tasks

AZ-289 — Integration tests: route map processing + ZIP

• Spec: _docs/02_tasks/done/AZ-289_integration_route_maps.md
• Outcome: Acceptance criteria met by existing integration tests; one assertion added.
• Existing coverage:
  • BT-08 (RequestMaps=true → mapsReady, stitchedImagePath, csvFilePath) — BasicRouteTests.RunRouteWithRegionProcessingAndStitching, ExtendedRouteTests.RunExtendedRouteEast, ExtendedRouteTests.RunRouteWithTilesZipTest.
  • BT-09 (ZIP entries == CSV count, directory structure preserved with tiles/ prefix) — ExtendedRouteTests.RunRouteWithTilesZipTest.
  • AC-1 (180s timeout) — WaitForRouteReady(routeId, 180, 3000) in the same test.
  • AC-2 (ZIP structure) — entry-count + path-prefix assertions + directory depth check.
• New addition: 50 MB ZIP cap assertion in ExtendedRouteTests.RunRouteWithTilesZipTest (also satisfies AZ-290 / RL-01).

AZ-290 — Non-functional tests

• Spec: _docs/02_tasks/done/AZ-290_nonfunctional_tests.md
• Outcome: All three ACs covered by a mix of new unit tests, new integration tests, an extended performance script, and existing tests cross-referenced below.

Performance (AC-1)

scripts/run-performance-tests.sh extended:

Scenario	Threshold	Implementation
PT-01 — Tile download (cold)	30 000 ms	New: GET /api/satellite/tiles/latlon with offset coords
PT-02 — Cached tile retrieval	500 ms	Existing
PT-03 — Region 200 m / z18	60 000 ms	New: POST /api/satellite/request + status poll
PT-04 — Region 500 m / z18 + stitch	120 000 ms	New: POST /api/satellite/request (stitchTiles=true) + status poll
PT-05 — 5 concurrent regions	300 000 ms	New: 5 parallel enqueues + wait-all loop
PT-06 — Route interpolation	5 000 ms	Existing

Resilience (AC-2)

Scenario	Coverage
RS-01 — API starts with DB ready	Structural (Docker Compose depends_on, healthcheck)
RS-02 — Migrations run on fresh DB	Structural (DbUp on startup, Program.cs)
RS-03 — Region processing handles tile failures	Unit: RegionServiceTests.ProcessRegionAsync_DownloaderFailure_TransitionsToFailedAndWritesErrorSummary (Batch 2)
RS-04 — Queue capacity bounded behavior	Unit: RegionRequestQueueTests.EnqueueAsync_BlocksWhenAtCapacity_UntilDequeue_RL02 and EnqueueAsync_HonorsCancellation_WhenFull (new). Spec drift noted: spec says "rejects overflow" but channel uses BoundedChannelFullMode.Wait → producer back-pressure. Tests assert actual behavior. To be reconciled in Step 12 (Test-Spec Sync).
RS-05 — Max 4 concurrent downloads	Configuration: appsettings.json ProcessingConfig.MaxConcurrentDownloads = 4; semaphore enforced inside GoogleMapsDownloaderV2
RS-06 — Route processing completes all regions	Existing: ComplexRouteTests.RunComplexRouteWithStitching*, ExtendedRouteTests.RunExtendedRouteEast

Security (AC-3)

SatelliteProvider.IntegrationTests/SecurityTests.cs (new) wired into Program.cs:

Scenario	Test
SEC-01 — SQL injection via coordinates	Sec01_SqlInjectionViaCoordinates — non-numeric Latitude rejected (400/422)
SEC-02 — Path traversal in tile serving	Sec02_PathTraversalInTileServing — three traversal patterns all return non-200
SEC-03 — Oversized region request	Sec03_OversizedRegionRequest — sizeMeters=1_000_000 rejected (400/422)
SEC-04 — Malformed JSON	Sec04_MalformedJson — non-JSON body rejected (400/415/422)

Resource Limits

Scenario	Coverage
RL-01 — ZIP ≤ 50 MB	ExtendedRouteTests.RunRouteWithTilesZipTest new cap assertion
RL-02 — Queue capacity 1000	appsettings.json QueueCapacity: 1000; bounded behavior verified by RegionRequestQueueTests
RL-03 — Concurrent download semaphore (4)	appsettings.json MaxConcurrentDownloads: 4
RL-04 — Concurrent region processing (20)	appsettings.json MaxConcurrentRegions: 20

Files Changed

SatelliteProvider.IntegrationTests/ExtendedRouteTests.cs
SatelliteProvider.IntegrationTests/SecurityTests.cs           [new]
SatelliteProvider.IntegrationTests/Program.cs
SatelliteProvider.Tests/RegionRequestQueueTests.cs            [new]
scripts/run-performance-tests.sh
_docs/02_tasks/todo/AZ-289_integration_route_maps.md → _docs/02_tasks/done/...
_docs/02_tasks/todo/AZ-290_nonfunctional_tests.md  → _docs/02_tasks/done/...
_docs/03_implementation/reviews/batch_03_review.md            [new]
_docs/03_implementation/batch_03_report.md                    [new]

Test Results

• Unit tests (Docker): 35 / 35 passed (1.21 s).
• Integration test project build: 0 errors, 0 warnings.
• Integration tests (full Compose runtime): deferred to Step 7 (Run Tests).
• Performance script (live API): deferred to Step 15 (Performance) per autodev flow.

Code Review

_docs/03_implementation/reviews/batch_03_review.md — verdict: PASS_WITH_WARNINGS.

• Findings: 2 Low (RS-04 spec wording drift, time-based test heuristic). No Critical or High.
• Baseline delta: no new architecture findings; pre-existing High findings (F1, F2) remain resolved.

Tracker Updates

• AZ-289 → In Testing
• AZ-290 → In Testing