# Blackbox Test Scenarios

## BT-01: Single Tile Download

**Trigger**: GET /api/satellite/tiles/latlon?lat=47.461747&lon=37.647063&zoom=18
**Precondition**: Tile not in cache
**Expected**: HTTP 200; JSON with zoomLevel=18, tileSizePixels=256, imageType="jpg", filePath matching pattern `tiles/18/*/...`
**Pass criterion**: All fields present and correct values

## BT-02: Tile Cache Reuse

**Trigger**: Same GET as BT-01 repeated
**Precondition**: BT-01 completed (tile now cached)
**Expected**: HTTP 200; same tile ID returned; no new file created
**Pass criterion**: tile.Id matches first request's tile.Id

## BT-03: Region Request (200m, zoom 18, no stitch)

**Trigger**: POST /api/satellite/request with lat=47.461747, lon=37.647063, sizeMeters=200, zoomLevel=18, stitchTiles=false
**Expected**: HTTP 200 immediately; status transitions: pending → processing → completed
**Pass criterion**: Final status="completed"; csvFilePath non-empty; summaryFilePath non-empty; tilesDownloaded + tilesReused > 0
**Timeout**: 240s

## BT-04: Region Request (400m, zoom 17, no stitch)

**Trigger**: POST /api/satellite/request with lat=47.461747, lon=37.647063, sizeMeters=400, zoomLevel=17, stitchTiles=false
**Expected**: Same as BT-03
**Pass criterion**: Same as BT-03
**Timeout**: 240s

## BT-05: Region with Stitching (500m, zoom 18)

**Trigger**: POST /api/satellite/request with lat=47.461747, lon=37.647063, sizeMeters=500, zoomLevel=18, stitchTiles=true
**Expected**: Completes with stitched image generated
**Pass criterion**: status="completed"; stitched image file exists and size > 1024 bytes
**Timeout**: 240s

## BT-06: Simple Route Creation (2 points)

**Trigger**: POST /api/satellite/route with id=`<new-Guid>`, name=`<unique>`, 2 waypoints (48.276067,37.384458) → (48.270740,37.374029), regionSizeMeters=500, zoomLevel=18, requestMaps=false, createTilesZip=false. Post-AZ-809 (cycle 8) every `[JsonRequired]` axis must be present — see `_docs/02_document/contracts/api/route-creation.md` v1.0.0.
**Expected**: HTTP 200 + route created with interpolated intermediate points.
**Pass criterion**: totalPoints > 2; every point spacing ≤ 200m; first point type="original"; last point type="original"; intermediates type="intermediate".

## BT-07: Route Retrieval by ID

**Trigger**: GET /api/satellite/route/{id} after BT-06
**Expected**: Same route returned with all points
**Pass criterion**: route.Id matches; points count matches creation response

## BT-08: Route with Map Processing

**Trigger**: POST /api/satellite/route with requestMaps=true, 2 points, regionSize=300
**Expected**: Route maps processed, stitched image and CSV created
**Pass criterion**: mapsReady=true; stitchedImagePath non-empty; csvFilePath non-empty; stitched image > 1024 bytes
**Timeout**: 180s

## BT-09: Route with Tiles ZIP

**Trigger**: POST /api/satellite/route with requestMaps=true, createTilesZip=true, 2 points
**Expected**: ZIP file created with tiles
**Pass criterion**: tilesZipPath non-empty; ZIP > 1024 bytes; ZIP entry count = unique tiles in CSV; entries start with "tiles/"; path has ≥5 parts (directory structure preserved)
**Timeout**: 180s

## BT-10: Complex Route (10 points, maps)

**Trigger**: POST /api/satellite/route with 10 waypoints, requestMaps=true, regionSize=300
**Expected**: All points interpolated; map tiles processed
**Pass criterion**: mapsReady=true; uniqueTileCount ≥ 10; stitched image > 1024 bytes
**Timeout**: 240s

## BT-11: Route with Geofences (10 points + 2 rectangles)

**Trigger**: POST /api/satellite/route with 10 waypoints + 2 geofence polygons, requestMaps=true
**Expected**: Geofence regions created and processed
**Pass criterion**: mapsReady=true; uniqueTileCount ≥ 10; stitched image > 1024 bytes; geofence regions linked to route
**Timeout**: 240s

## BT-12: Extended Route (20 points, maps)

**Trigger**: POST /api/satellite/route with 20 waypoints in separate geographic area, requestMaps=true
**Expected**: Large route processed completely
**Pass criterion**: mapsReady=true; uniqueTileCount ≥ 20; stitched image > 1024 bytes
**Timeout**: 360s

## Negative Scenarios

## BT-N01: Invalid Coordinates (out of range)

**Trigger**: GET /api/satellite/tiles/latlon?lat=91&lon=181&zoom=18
**Expected**: Error response
**Pass criterion**: HTTP 4xx or error in response body

## BT-N02: Invalid Zoom Level

**Trigger**: GET /api/satellite/tiles/latlon?lat=47.46&lon=37.64&zoom=25
**Expected**: Error response
**Pass criterion**: HTTP 4xx or error indicating invalid zoom

## BT-N03: Route with < 2 Points

**Trigger**: POST /api/satellite/route with only 1 point (post-AZ-809 wire format: `id`/`name`/`regionSizeMeters`/`zoomLevel`/`points`/`requestMaps`/`createTilesZip`).
**Expected**: HTTP 400 + `ValidationProblemDetails` per `error-shape.md` v1.0.0; `errors["points"]` map entry from `CreateRouteRequestValidator`.
**Pass criterion**: HTTP 400; response body `Content-Type: application/problem+json`; `errors["points"]` mentions the `[2, 500]` count constraint.
**AC trace**: AZ-809 AC-1 (rule 7).

## BT-N04: Geofence with Invalid Coordinates (0,0) — superseded by AZ-809

**Trigger**: POST /api/satellite/route with geofence NW=(0,0) SE=(0,0).
**Expected**: HTTP 400 + `ValidationProblemDetails`. Pre-AZ-809 behavior accepted (0,0) corners but caught the equal-corners case via the legacy `RouteValidator`. Post-AZ-809, `GeofencePolygonValidator` rejects equal corners because BOTH cross-field invariants (`NW.Lat > SE.Lat` and `NW.Lon < SE.Lon`) fail.
**Pass criterion**: HTTP 400; `errors["geofences.polygons[0].northWest"]` contains both the lat and lon invariant messages.
**AC trace**: AZ-809 AC-1 (rule 9, cross-field invariant).

## BT-N05: Geofence with Inverted Corners — superseded by AZ-809

**Trigger**: POST /api/satellite/route with geofence NW.lat < SE.lat (NW south-of SE).
**Expected**: HTTP 400 + `ValidationProblemDetails`. Post-AZ-809 the failure surfaces at `errors["geofences.polygons[0].northWest"]` with message "\`northWest.lat\` must be greater than \`southEast.lat\` (NW is north-of SE)".
**Pass criterion**: HTTP 400; named error key matches the wire path; message is the cross-field invariant.
**AC trace**: AZ-809 AC-1 (rule 9).

---

## Cycle 2 — AZ-488 UAV Tile Upload (POST /api/satellite/upload)

All Cycle-2 UAV scenarios run with a JWT containing `permissions: ["GPS"]` (per AZ-487 + AZ-488). Files use the contract at `_docs/02_document/contracts/api/uav-tile-upload.md` v1.0.0; per-item correlation is by ordinal index between metadata array and `IFormFileCollection`.

## BT-13: UAV Upload — Happy-Path 1-Item Batch Persists `source='uav'`

**Trigger**: POST `/api/satellite/upload` with a 1-item batch — a 256×256 JPEG (~50 KiB), `capturedAt = now`, valid coordinates inside the test region.
**Precondition**: Empty `tiles` table for the chosen cell; valid `GPS` JWT.
**Expected**: HTTP 200; response body has `items[0].status == "accepted"` and a non-empty `tileId`; a new row exists in `tiles` with `source='uav'`, `captured_at` matching the request (UTC, ≤ 1 s drift), `file_path == 'tiles/uav/{z}/{x}/{y}.jpg'`; the file exists on disk at that path with the uploaded bytes.
**Pass criterion**: All of the above true.
**AC trace**: AZ-488 AC-1.

## BT-14: UAV Upload — 3-Item Mixed Batch Returns Per-Item Results

**Trigger**: POST `/api/satellite/upload` with a 3-item batch where item-1 is a valid 256×256 JPEG, item-2 is a 512×512 JPEG (wrong dimensions), item-3 has PNG magic bytes (wrong format).
**Precondition**: Empty `tiles` table; valid `GPS` JWT.
**Expected**: HTTP 200; `items[0].status == "accepted"` with a `tileId`; `items[1].status == "rejected"` with `rejectReason == "WRONG_DIMENSIONS"`; `items[2].status == "rejected"` with `rejectReason == "INVALID_FORMAT"`. Exactly one new row appears in `tiles` (for item-1 only). No file written for items 2 or 3.
**Pass criterion**: status array matches `[accepted, rejected, rejected]` AND reasons match exactly AND `COUNT(*) WHERE source='uav'` == 1 for the test region.
**AC trace**: AZ-488 AC-2, AC-7a, AC-7c.

## BT-15: UAV Upload — Multi-Source Coexistence with `google_maps`

**Trigger**: Pre-seed `tiles` (raw INSERT) with a `source='google_maps'` row at `(L, Ln, z=18, size_m=200)` and `captured_at = T1 = now − 2h`. Then POST `/api/satellite/upload` with a UAV tile for the same cell and `capturedAt = T2 = now`.
**Precondition**: AZ-484 migration 013 applied (5-column unique index in place); valid `GPS` JWT.
**Expected**: HTTP 200; both rows exist in `tiles` after upload (no overwrite of the google_maps row); a follow-up `GetByTileCoordinatesAsync(L, Ln, 18, 200)` returns the `source='uav'` row (per AZ-484 selection rule: max `captured_at` across sources).
**Pass criterion**: `SELECT source FROM tiles WHERE ...` returns both `'google_maps'` AND `'uav'`; the repository read returns the UAV row.
**AC trace**: AZ-488 AC-3; cross-references AZ-484 AC-1 (storage Inv-3) and AZ-484 AC-2 (selection rule).

## BT-16: UAV Upload — Same-Source UPSERT Collapses to One Row

**Trigger**: POST `/api/satellite/upload` with a UAV tile for cell `(L, Ln, 18, 200)` at `capturedAt = T1 = now − 30m`, then a second POST for the same cell at `capturedAt = T2 = now` with different image bytes (different `seed`).
**Precondition**: Cell is empty for `source='uav'` before T1; valid `GPS` JWT.
**Expected**: HTTP 200 for both calls. After the second call, exactly one `source='uav'` row remains for the cell with `captured_at == T2`; the JPEG at `./tiles/uav/{z}/{x}/{y}.jpg` is overwritten with the T2 bytes. Any pre-existing `source='google_maps'` row is untouched.
**Pass criterion**: `SELECT COUNT(*) FROM tiles WHERE source='uav' AND (L, Ln, 18, 200)` == 1 AND `MAX(captured_at) ≈ T2` AND on-disk JPEG checksum matches the T2 upload.
**AC trace**: AZ-488 AC-4; cross-references AZ-484 AC-3.

## BT-17: UAV Upload — Quality-Gate Rule-Ordering Determinism

**Trigger**: POST `/api/satellite/upload` with a single item that violates BOTH Rule 1 (PNG magic instead of JPEG) AND Rule 3 (512×512 dimensions). Authenticated with `GPS` permission.
**Expected**: HTTP 200; `items[0].status == "rejected"` with `rejectReason == "INVALID_FORMAT"` (Rule 1 fires first; Rule 3 never evaluated).
**Pass criterion**: rejectReason equals exactly `INVALID_FORMAT`; never `WRONG_DIMENSIONS`.
**AC trace**: AZ-488 AC-7; rule-ordering invariant from `_docs/02_document/contracts/api/uav-tile-upload.md` v1.0.0.

## Cycle 2 — AZ-487 Endpoint Parity (existing endpoints with Bearer token)

## BT-18: Existing Tile Endpoint Returns Identical Body with Valid Bearer

**Trigger**: GET `/api/satellite/tiles/latlon?lat=47.461747&lon=37.647063&zoom=18` with a valid Bearer token.
**Precondition**: Tile may or may not be cached.
**Expected**: Response body is structurally identical to BT-01 (`tileId`, `zoomLevel == 18`, `tileSizePixels == 256`, `imageType == "jpg"`, `filePath` matches `tiles/18/*/*`).
**Pass criterion**: status == 200 AND BT-01's pass criterion AND no behavioral change vs pre-AZ-487 baseline.
**AC trace**: AZ-487 AC-4 (handler unchanged); validates AZ-487 AC-8 (existing suite parity).

---

## Cycle 5 — AZ-503 Tile Identity → UUIDv5 + integer UPSERT (foundation)

All Cycle-5 UAV scenarios reuse the AZ-488 envelope. The new observable surface is: a `flightId` field in `UavTileMetadata`, deterministic `tileId` / `locationHash` values, and a per-flight on-disk layout `./tiles/uav/{flight_id|none}/{z}/{x}/{y}.jpg`. No new HTTP route or wire change beyond the optional metadata field.

## BT-19: UAV Upload — Multi-Flight Coexistence with Shared `location_hash`

**Trigger**: POST `/api/satellite/upload` twice for the SAME `(z=18, tile_x, tile_y, tile_size_meters)` from two different `flight_id` values `F1 ≠ F2` (each upload sends `metadata.flightId = F`, valid 256×256 JPEG, fresh `capturedAt`).
**Precondition**: Empty `tiles` table for the chosen cell; valid `GPS` JWT.
**Expected**: HTTP 200 for both calls. After the second call, exactly TWO rows exist in `tiles` for `source='uav'` at the cell — one per flight. Both rows share the same `location_hash` (deterministic per `{z}/{x}/{y}`); each has a distinct `id` (deterministic per `{z}/{x}/{y}/uav/{flight_id}`). On disk, two files exist at `./tiles/uav/{F1}/{z}/{x}/{y}.jpg` and `./tiles/uav/{F2}/{z}/{x}/{y}.jpg`; `rm -rf ./tiles/uav/{F1}/` removes ONLY Flight F1's evidence.
**Pass criterion**: `SELECT COUNT(*) FROM tiles WHERE source='uav' AND (z,x,y,size_m)=(...)` == 2 AND `COUNT(DISTINCT location_hash)` == 1 AND `COUNT(DISTINCT id)` == 2 AND `COUNT(DISTINCT file_path)` == 2 AND both files present on disk.
**AC trace**: AZ-503 AC-3, AC-11.

## BT-20: UAV Upload — Idempotent Re-Insert Preserves Deterministic `tileId` and `content_sha256`

**Trigger**: POST `/api/satellite/upload` for cell `(z=18, x, y, size_m)` with `flightId = F` and JPEG body `B` and `capturedAt = T1`. Repeat the SAME body and `flightId` with `capturedAt = T2 > T1`.
**Precondition**: Empty `tiles` table for the cell; valid `GPS` JWT.
**Expected**: HTTP 200 for both calls. Exactly ONE row exists for the cell after both inserts. The row's `id` is identical before and after the second insert (deterministic UUIDv5 from `{z}/{x}/{y}/uav/{F}`). `updated_at` advances to T2; `created_at` is NOT regenerated. `content_sha256` equals `SHA-256(B)` externally computed; the second insert's `content_sha256` matches the first (byte-identical body).
**Pass criterion**: `SELECT COUNT(*)` == 1 AND `id` is stable AND `content_sha256 == sha256(B)` AND `created_at` unchanged AND `updated_at == T2`.
**AC trace**: AZ-503 AC-2, AC-7.

## BT-21: UAV Upload — Float-Rounded Coordinates Collapse to a Single Row

**Trigger**: POST `/api/satellite/upload` for cell `(z=18, x, y, size_m)` with `latitude = 47.123456789012345` and `flightId = F`. Repeat with the SAME `(x, y, z)` but `latitude` recomputed from `tile_center = TileToWorldPos(x, y, z)` (slightly different float representation).
**Precondition**: Empty `tiles` table for the cell; valid `GPS` JWT.
**Expected**: HTTP 200 for both calls. Exactly ONE row results — the integer-only UPSERT conflict key (`tile_zoom, tile_x, tile_y, tile_size_meters, source, COALESCE(flight_id, ...)`) triggers despite the float-different `latitude` values.
**Pass criterion**: `SELECT COUNT(*) FROM tiles WHERE source='uav' AND tile_zoom=18 AND tile_x=x AND tile_y=y AND tile_size_meters=size_m` == 1.
**AC trace**: AZ-503 AC-4.

## BT-22: Migration 014 — Identity Columns Land and Backfill Is Deterministic

**Trigger**: Run `dotnet ef migrations apply` (via API container startup) against a DB with cycle-4 schema; then query `information_schema.columns` and `pg_indexes` for `tiles`.
**Precondition**: DB starts with migration 013 applied (cycle 4 baseline); `pgcrypto` available.
**Expected**: `tiles` table has `flight_id uuid NULL`, `location_hash uuid NOT NULL`, `content_sha256 bytea NULL`, `legacy_id uuid NULL`. `idx_tiles_unique_identity` exists as a UNIQUE index over `(tile_zoom, tile_x, tile_y, tile_size_meters, source, COALESCE(flight_id, '00000000-...'::uuid))`. AZ-484 index `idx_tiles_unique_location_source` is dropped. For any pre-existing row, `location_hash` equals `uuidv5(TILE_NAMESPACE, '{tile_zoom}/{tile_x}/{tile_y}')` byte-identically (validated against a SQL `pg_temp.uuidv5` reference function).
**Pass criterion**: All column / index assertions pass AND the deterministic backfill matches the reference function on 100% of sampled rows.
**AC trace**: AZ-503 AC-8.

## BT-23: Inventory Endpoint — Order Preserved Across Present/Absent Mix

**Trigger**: `POST /api/satellite/tiles/inventory` with a body of 25 interleaved `(z, x, y)` coords at zoom 18, where 12 of the 25 are seeded into `tiles` (mix of `google_maps` and per-flight `uav` rows) and 13 are absent. Valid JWT attached.
**Precondition**: Migration 015 applied (`tiles_leaflet_path` index exists); rows seeded via `TileRepository.AddAsync` so `location_hash` is populated.
**Expected**: HTTP 200; response body is a `TileInventoryResponse` with `results.length == 25`; entries appear in the **same order** as the request body; 12 entries have `present=true` with `id` / `locationHash` / `capturedAt` / `source` populated; 13 entries have `present=false` with only `locationHash` populated (UUIDv5 of `"{z}/{x}/{y}"`), `id` is `null`, and `capturedAt` / `source` / `flightId` / `resolutionMPerPx` are all `null`.
**Pass criterion**: All ordering, presence, and field-shape invariants from `tile-inventory.md` v1.0.0 Inv-1..Inv-6 hold for every entry.
**AC trace**: AZ-505 AC-1 (resolves AZ-503 AC-5 deferral).

## BT-24: Leaflet Read Path — Most-Recent Selection Keyed on location_hash

**Trigger**: `GET /tiles/{z}/{x}/{y}` against a cell that has two seeded rows for the same `(z, x, y)`: a `google_maps` row with `captured_at = T - 2h` and a `uav` row with `captured_at = T - 30min` (strictly newer) and a distinct `flight_id`.
**Precondition**: Migration 015 applied; both rows persisted with their `location_hash` populated via `Uuidv5.LocationHashForTile`.
**Expected**: The DB-level SELECT that `TileRepository.GetByTileCoordinatesAsync` runs (`SELECT … FROM tiles WHERE location_hash = $1 ORDER BY captured_at DESC, updated_at DESC, id DESC LIMIT 1`) returns exactly **one** row — the UAV row.
**Pass criterion**: `picked.id == uavId` (the newer row wins); selection semantics are byte-identical to AZ-484 / AZ-503-foundation, only the access key changed from the `(tile_zoom, tile_x, tile_y, tile_size_meters)` 4-tuple to `location_hash`.
**AC trace**: AZ-505 AC-2 (resolves AZ-503 AC-6 deferral).

## BT-25: HTTP/2 Multiplexed Tile Reads on a Single TLS Connection

**Trigger**: A single `HttpClient` configured with `SocketsHttpHandler { EnableMultipleHttp2Connections = false }` + `HttpVersion.Version20` + `HttpVersionPolicy.RequestVersionExact` issues 20 concurrent `GET /tiles/{z}/{x}/{y}` requests for the same well-known tile.
**Precondition**: Kestrel configured with `HttpProtocols.Http1AndHttp2`; dev listener bound to `https://+:8080` with a self-signed cert (`./certs/api.pfx`, generated by `scripts/run-tests.sh`); the integration-test container trusts the cert via `/usr/local/share/ca-certificates/` + `update-ca-certificates`. ALPN advertises `h2` and `http/1.1`.
**Expected**: All 20 responses succeed with HTTP 200; each `HttpResponseMessage.Version` equals `2.0`; per-tile `ETag` and `Cache-Control` headers are preserved unchanged from the HTTP/1.1 baseline; all 20 streams share a single TLS connection (enforced by `EnableMultipleHttp2Connections = false`).
**Pass criterion**: 20/20 responses are `Status=200`, `Version=2.0`, with non-null `ETag` and non-null `Cache-Control`.
**Note (post-merge correction)**: Original AZ-505 wording was "dev plaintext endpoint" / h2c; switched to TLS+ALPN during the cycle-6 Run-Tests step because Kestrel silently downgrades `Http1AndHttp2` to HTTP/1.1 over plaintext (ALPN cannot run unencrypted). See `_docs/03_implementation/implementation_report_tile_inventory_cycle6.md` → "Post-merge correction".
**AC trace**: AZ-505 AC-5 (resolves AZ-503 AC-12 deferral).

## BT-26: Inventory Endpoint — Request Validation

**Trigger**: Four `POST /api/satellite/tiles/inventory` calls, each exercising one validation rule.
**Precondition**: API up; valid JWT attached except for the anonymous case.
**Expected**:
- Both `tiles` and `locationHashes` populated → HTTP 400 with a descriptive `detail` per `tile-inventory.md` Inv-1.
- Neither `tiles` nor `locationHashes` populated → HTTP 400.
- `tiles.length > 5000` or `locationHashes.length > 5000` → HTTP 400 (the 5000 cap matches `TileInventoryLimits.MaxEntriesPerRequest`, Inv-7).
- No `Authorization: Bearer …` header → HTTP 401 before the handler runs (matches the `.RequireAuthorization()` baseline; same shape as SEC-05).
**Pass criterion**: All four expected status codes returned; no response leaks server internals.
**AC trace**: AZ-505 AC-6.

---

## Cycle 7 — AZ-794 / AZ-795 / AZ-796 Strict Validation + z/x/y Rename

Cycle 7 hardens `POST /api/satellite/tiles/inventory` by combining (a) the OSM-convention rename of body fields from `tileZoom/tileX/tileY` to `z/x/y` (AZ-794), (b) the shared input-validation infrastructure (AZ-795 — FluentValidation + `ValidationEndpointFilter<T>` + `GlobalExceptionHandler` + `JsonSerializerOptions.UnmappedMemberHandling.Disallow`), and (c) the inventory endpoint's nine concrete validation rules (AZ-796). The cycle's wire-shape contract is `tile-inventory.md` v2.0.0; the failure-response contract is `error-shape.md` v1.0.0.

The cycle introduces no new HTTP routes. Functional positive coverage is unchanged from cycle 6 — `TileInventoryTests.OrderingAndPresentAbsentShaping_AC1` and the rest of the AZ-505 suite continue to assert ordering, present/absent shaping, leaflet selection, HTTP/2, and the perf budget against the post-rename body shape. The new tests below cover the strict-rejection behaviour that pre-cycle-7 silently coerced.

## BT-27: Inventory Endpoint — Nine Validation Rules with RFC 7807 ProblemDetails

**Trigger**: A family of `POST /api/satellite/tiles/inventory` calls, each violating exactly ONE validation rule from AZ-796 §"Required validations (9 rules)". One additional sub-case asserts the legacy `tileZoom/tileX/tileY` field names are now rejected (intersection of AZ-794 + AZ-796).
**Precondition**: API up; valid JWT attached on every sub-case. `error-shape.md` v1.0.0 + `tile-inventory.md` v2.0.0 frozen.
**Expected**: HTTP 400 with `Content-Type: application/problem+json` for every sub-case. The body conforms to the validation-failure shape from `error-shape.md` v1.0.0 (Inv-1 .. Inv-7); the `errors` map names the offending field path using the request body's camelCase. Sub-cases:

| # | Rule | Trigger excerpt | Expected `errors` key | Test method |
|---|------|-----------------|-----------------------|-------------|
| 1 | Body present | empty body (zero bytes, `Content-Type: application/json`) | (no `errors` map — framework-level ProblemDetails) | `EmptyBody_Returns400` |
| 2a | XOR of `tiles` / `locationHashes` | `{}` (neither populated) | `$` | `NeitherPopulated_Returns400` |
| 2b | XOR (both populated) | `{"tiles":[…],"locationHashes":[…]}` | `$` | `BothPopulated_Returns400` |
| 3 | `tiles` non-empty | `{"tiles":[]}` | `$` (treated as not-populated by XOR) | `EmptyTilesArray_Returns400` |
| 4 | `tiles` ≤ `MaxEntriesPerRequest` (5000) | 5001-entry `tiles` array | `tiles` | `TilesOverCap_Returns400` |
| 5a | Required `z` on each entry | `{"tiles":[{"x":1,"y":1}]}` | path mentioning `z` | `MissingZ_Returns400WithFieldPath` |
| 5b | Required `x` / `y` on each entry | `{"tiles":[{"z":18}]}` | (validator + JsonRequired report missing axes) | `MissingXAndY_Returns400` |
| 6a | Non-negative axis | `{"tiles":[{"z":18,"x":-1,"y":0}]}` | `tiles[0].x` | `NegativeAxis_Returns400` |
| 6b | Integer type | `{"tiles":[{"z":"eighteen","x":1,"y":1}]}` | path mentioning the axis | `TypeMismatch_Returns400` |
| 7 | `z` in slippy-map range 0..22 | `{"tiles":[{"z":30,"x":0,"y":0}]}` | `tiles[0].z`; message mentions "between 0 and 22" | `ZoomOutOfRange_Returns400WithFieldPath` |
| 8a | `x` < 2^z | `{"tiles":[{"z":2,"x":4,"y":0}]}` | `tiles[0].x` | `XBeyondZoomBounds_Returns400` |
| 8b | `y` < 2^z | `{"tiles":[{"z":0,"x":0,"y":1}]}` | `tiles[0].y` | `YBeyondZoomBounds_Returns400` |
| 9a | Unknown root field | `{"unknownField":42,"tiles":[…]}` | path mentioning `unknownField` | `UnknownRootField_Returns400` |
| 9b | Unknown nested field on tile entry | `{"tiles":[{"z":18,"x":1,"y":1,"foo":42}]}` | path mentioning `foo` | `UnknownNestedField_Returns400` |
| 9c | Legacy v1 names (`tileZoom/tileX/tileY`) | exact AZ-777 Phase 1 reproduction body | path mentioning `tileZoom` | `OldV1FieldName_Returns400` (cross-listed under AZ-794) |
| pos | Happy path with z/x/y | `{"tiles":[{"z":18,"x":1,"y":1}]}` | HTTP 200 — no body shape change vs AZ-505 baseline | `HappyPath_Returns200` |

**Pass criterion**: Every failure sub-case returns HTTP 400 with the expected `errors` key OR an equivalent RFC 7807 ProblemDetails for the empty-body case; the happy path returns HTTP 200. No sub-case leaks server-internal state (DB strings, secrets, stack traces) per `error-shape.md` Inv-5.
**AC trace**: AZ-796 AC-1 (all 9 rules + ProblemDetails shape), AC-2 (happy path); AZ-794 AC-1 (positive z/x/y acceptance — sub-case `pos`), AZ-794 AC-2 (sub-case `9c` proves the old names produce a structured 400, eliminating the silent-coerce-to-0 footgun); AZ-795 (epic-level — every sub-case exercises the shared `ValidationEndpointFilter` + `GlobalExceptionHandler` + `UnmappedMemberHandling.Disallow` infra).
**Notes**: The 9 rules split across two enforcement layers — rules 5/6/9 are enforced by the deserializer (`JsonRequired` + `UnmappedMemberHandling.Disallow` + native JSON type validation, see AZ-795 shared infra) and surface as `BadHttpRequestException` → `GlobalExceptionHandler.JsonException` branch; rules 2/3/4/7/8 are enforced by `InventoryRequestValidator` (FluentValidation) via `ValidationEndpointFilter<TileInventoryRequest>`. Both paths produce identically-shaped `ValidationProblemDetails` bodies (`error-shape.md` v1.0.0 invariant).

---

## Cycle 8 — AZ-808 / AZ-809 / AZ-810 / AZ-811 / AZ-812 Strict Validation Sweep + Region Rename

Cycle 8 extends the AZ-795 shared validation infrastructure (FluentValidation + `ValidationEndpointFilter<T>` + `GlobalExceptionHandler` + `JsonSerializerOptions.UnmappedMemberHandling.Disallow`) to the four remaining public-facing endpoints, and lands the OSM-convention `Lat`/`Lon` rename on the Region API in the same commit set. Every cycle-8 endpoint emits the same `ValidationProblemDetails` shape (`error-shape.md` v1.0.0) used by AZ-796. No new HTTP routes; existing positive coverage (BT-01..BT-18 region/route/tile flows, BT-13..BT-17 UAV upload, BT-N01..BT-N05 negatives) is preserved. The new tests below cover the strict-rejection behaviour that pre-cycle-8 either silently coerced (missing `id` → zero-Guid; unknown `?latitude=` → `lat=0`) or accepted out-of-range (lat > 90, zoom > 22) values that downstream code couldn't render.

## BT-28: Region Request Endpoint — Strict Validation + OSM Rename

**Trigger**: A family of `POST /api/satellite/request` calls. AZ-812's `Lat`/`Lon` rename ships in the same commit as AZ-808; every sub-case uses the post-rename wire shape `{"id":"<guid>","lat":..,"lon":..,"sizeMeters":..,"zoomLevel":..,"stitchTiles":..}`.
**Precondition**: API up; valid JWT attached. `error-shape.md` v1.0.0 + `region-request.md` v1.0.0 frozen (v1.0.0 published directly with the post-AZ-812 names per AZ-812 AC-6 coordination).
**Expected**: HTTP 400 with `Content-Type: application/problem+json` for every failure sub-case; HTTP 200 + `RegionStatusResponse` for the happy path. `errors[]` names the offending field path in request-body camelCase.

| # | Rule | Trigger excerpt | Expected `errors` key | Test method |
|---|------|-----------------|-----------------------|-------------|
| pos | Happy path with `lat`/`lon` | full valid body | HTTP 200 — body shape unchanged from pre-AZ-808 (`{regionId,status}`) | `HappyPath_Returns200` |
| 1 | Empty body | zero bytes, `Content-Type: application/json` | (framework-level ProblemDetails) | `EmptyBody_Returns400` |
| 2a | Required `id` (silent-coercion fix) | omit `id` entirely | `id` — message states `id` is required (NOT zero-Guid coercion) | `Post_WithMissingId_ReturnsBadRequest` |
| 2b | Zero-Guid `id` | `"id":"00000000-0000-0000-0000-000000000000"` | `id` | `ZeroGuidId_Returns400` |
| 3 | `lat` in range `[-90, 90]` | `"lat":91` | `lat` | `LatOutOfRange_Returns400` |
| 4 | `lon` in range `[-180, 180]` | `"lon":181` | `lon` | `LonOutOfRange_Returns400` |
| 5 | `sizeMeters` in range `[100, 10_000]` | `"sizeMeters":1000000` | `sizeMeters` | `SizeMetersOutOfRange_Returns400` |
| 6 | `zoomLevel` in range `[0, 22]` | `"zoomLevel":30` | `zoomLevel` | `ZoomOutOfRange_Returns400` |
| 7 | Required `stitchTiles` | omit `stitchTiles` | `stitchTiles` | `MissingStitchTiles_Returns400` |
| 8 | Unknown root field (`UnmappedMemberHandling.Disallow`) | `"debug":42` | path mentioning `debug` | `UnknownRootField_Returns400` |
| 9 | Legacy v1 names (`latitude`/`longitude`) | exact AZ-777 Phase 2 reproduction body | path mentioning `latitude` (treated as unknown post-AZ-812) | `OldLatLongNames_Returns400` |
| 10 | Type mismatch on `lat` | `"lat":"fifty"` | path mentioning `lat` | `LatTypeMismatch_Returns400` |

**Pass criterion**: Every failure sub-case returns HTTP 400 with the expected `errors` key OR an equivalent RFC 7807 body for the empty-body case; the happy path returns HTTP 200 + a non-empty `regionId`. AZ-812 AC-4 is verified by sub-cases `pos` (new names accepted) and `9` (old names rejected by `UnmappedMemberHandling.Disallow`) on the same endpoint. No regression in `RegionRequestTests.cs` (cycle 8 Step 11 — green).
**AC trace**: AZ-808 AC-1 (8 rules + ProblemDetails shape), AC-2 (happy path); AZ-812 AC-2 (wire format end-to-end), AC-3 (existing happy-path tests pass — Step 11 green), AC-4 (post-rename accepted, pre-rename rejected — sub-cases `pos` + `9`).
**Notes**: The 8 validations split between the deserializer (rule 7 missing-required, rule 8 unknown-root, rule 10 type-mismatch — surface via `GlobalExceptionHandler`) and `RegionRequestValidator` (rules 2b/3/4/5/6 — surface via `ValidationEndpointFilter<RequestRegionRequest>`). The silent-coercion case (rule 2a) is the AZ-777 Phase 2 reproducer: pre-cycle-8 a missing `id` deserialized to `Guid.Empty` and the handler silently created a region with id `00000000-...`; post-cycle-8 it fails-fast at the deserializer.

## BT-29: Create Route Endpoint — Nested + Cross-Field Strict Validation

**Trigger**: A family of `POST /api/satellite/route` calls covering AZ-809's 14 rules. Bodies use the post-AZ-809 wire shape `{id, name, description?, regionSizeMeters, zoomLevel, points: [{lat, lon}, …], requestMaps, createTilesZip, geofences?: {polygons: [{northWest, southEast}]}}`.
**Precondition**: API up; valid JWT attached. `error-shape.md` v1.0.0 + `route-creation.md` v1.0.1 frozen.
**Expected**: HTTP 400 with `Content-Type: application/problem+json` for every failure sub-case; HTTP 200 + `RouteResponse` for the happy path. `errors[]` keys use the nested path (e.g. `points[1].lat`, `geofences.polygons[0].northWest`).

| # | Rule | Trigger excerpt | Expected `errors` key | Test method |
|---|------|-----------------|-----------------------|-------------|
| pos | Happy path (`requestMaps=false`, no background processing) | minimal 2-point valid body | HTTP 200 — body shape unchanged | `HappyPath_Returns200` |
| 1 | Empty body | zero bytes | (framework-level ProblemDetails) | `EmptyBody_Returns400` |
| 2a | Required `id` (silent-coercion fix) | omit `id` | `id` is required (no zero-Guid coercion) | `MissingId_Returns400` |
| 2b | Zero-Guid `id` | `"id":"00000000-..."` | `id` | `ZeroGuidId_Returns400` |
| 3 | Required `name` non-empty | `"name":""` | `name` | `EmptyName_Returns400` |
| 5 | `regionSizeMeters` in `[100, 10_000]` | `1000000` | `regionSizeMeters` | `RegionSizeMetersOutOfRange_Returns400` |
| 6 | `zoomLevel` in `[0, 22]` | `30` | `zoomLevel` | `ZoomOutOfRange_Returns400` |
| 7 | `points` count in `[2, 500]` | 1-point array | `points` | `PointsCountBelowMin_Returns400` |
| 8a | Per-point `lat` in `[-90, 90]` | `points[1].lat=91` | `points[1].lat` | `PointLatOutOfRange_Returns400` |
| 8b | Per-point `lon` in `[-180, 180]` | `points[1].lon=181` | `points[1].lon` | `PointLonOutOfRange_Returns400` |
| 9 | Geofence cross-field invariant (`NW.lat > SE.lat` AND `NW.lon < SE.lon`) | NW.lat ≤ SE.lat | `geofences.polygons[0].northWest` | `GeofenceNwSeInvariantViolated_Returns400` |
| 9b | `geofences.polygons.Count <= 50` (security-audit F-AZ809-1 fix, `route-creation.md` v1.0.1 Inv-10) | 51-polygon array | `geofences.polygons` ("must contain at most 50 polygons.") | `GeofencePolygonsTooMany_Returns400` |
| 10 | Required `requestMaps` (no defaulting) | omit `requestMaps` | `requestMaps` | `MissingRequestMaps_Returns400` |
| 12 | Cross-field: `createTilesZip=true` requires `requestMaps=true` | `{createTilesZip:true, requestMaps:false}` | top-level message (no per-field key) | `CreateTilesZipRequiresRequestMaps_Returns400` |
| 13 | Unknown root field | `"debug":42` | path mentioning `debug` | `UnknownRootField_Returns400` |
| 14 | Nested type mismatch | `"points[0].lat":"fifty"` | path mentioning `points[0].lat` | `NestedTypeMismatch_Returns400` |

**Pass criterion**: Every failure sub-case returns HTTP 400 with the expected `errors` key OR an equivalent RFC 7807 body for the empty/cross-field cases; the happy path returns HTTP 200 + a non-empty `routeId`. No regression in `RouteCreationTests.cs` (cycle 8 Step 11 — green). The AZ-779-class footgun (silent coercion of missing `id` to zero-Guid creating untracked routes) is closed by sub-case 2a.
**AC trace**: AZ-809 AC-1 (14 rules + ProblemDetails shape), AC-2 (happy path). Advisory ACs AC-9 (`sizeMeters` vs `regionSizeMeters` naming) and AC-10 (input `lat`/`lon` vs output `latitude`/`longitude` asymmetry) are explicitly **not** tested — surfaced to parent-suite team for follow-up only.
**Notes**: The 14 rules split across three layers — deserializer (rules 3 type-mismatch, 13 unknown-root, 14 nested type mismatch, 10 missing-required), `CreateRouteRequestValidator` (rules 2b/5/6/7, plus orchestration of nested validators), `RoutePointValidator` (rules 8a/8b — applied per-element via `RuleForEach(x => x.Points).SetValidator`), `GeofencePolygonValidator` (rule 9 cross-field), and a top-level `Must()` (rule 12). Rule 4 (`description` length cap if present) is enforced by `CreateRouteRequestValidator.RuleFor(x => x.Description).MaximumLength(...)` and is not exercised by an explicit sub-case because the existing `pos` body omits `description` and there is no probe-confirmed footgun there. The cross-field rule 12 surfaces under a top-level `errors` map entry (no field key) per FluentValidation convention for `RuleFor(x => x).Must(...)`.

## BT-30: UAV Upload Metadata Endpoint — Multipart Strict Validation

**Trigger**: A family of `POST /api/satellite/upload` multipart calls covering AZ-810's 14 rules. The endpoint is `multipart/form-data`, so the validator wires through a **custom** `UavUploadValidationFilter` (NOT the generic `ValidationEndpointFilter<T>` used by JSON-body endpoints) which deserializes the `metadata` form field via the strict global `JsonSerializerOptions` and routes errors through three composed layers (deserializer → FluentValidation → envelope cross-field check).
**Precondition**: API up; valid JWT with `permissions:["GPS"]` attached. `error-shape.md` v1.0.0 + `uav-tile-upload.md` v1.2.0 frozen.
**Expected**: HTTP 400 with `Content-Type: application/problem+json` for every failure sub-case; HTTP 200 + per-item result list for the happy path (per-item file rejections still return HTTP 200 — file-byte semantics unchanged from AZ-488). `errors[]` keys are prefixed with `metadata.` (e.g. `metadata.items[0].latitude`) for FluentValidation-layer rules; deserializer-layer failures surface under `errors["metadata"]` (per `UavUploadValidationFilter` design — the deserializer doesn't know the per-field path inside the form value).

| # | Rule | Layer | Trigger excerpt | Expected `errors` key | Test method |
|---|------|-------|-----------------|-----------------------|-------------|
| pos | Happy path | — | well-formed multipart envelope with valid 256×256 JPEG | HTTP 200, per-item `status=accepted` | `HappyPath_Returns200` |
| 1 | `metadata` form field present | deserializer | omit `metadata` field | `metadata` | `MissingMetadataField_Returns400` |
| 2 | `metadata` deserializes to `UavTileBatchMetadataPayload` | deserializer | `"items":"notanarray"` | `metadata` | `MetadataNotAnObject_Returns400` |
| 3 | `metadata.items` count in `[1, 100]` | FluentValidation | 101-item array | `metadata.items` | `OversizedItemsArray_Returns400` |
| 4 | `metadata.items` count == file count (envelope cross-field) | envelope filter | 2 items, 1 file | both `metadata.items` and `files` | `ItemsFileCountMismatch_Returns400` |
| 5 | per-item `latitude` in `[-90, 90]` | FluentValidation | `items[1].latitude=91` | `metadata.items[1].latitude` | `LatitudeOutOfRange_Returns400` |
| 6 | per-item `longitude` in `[-180, 180]` | FluentValidation | `items[0].longitude=181` | `metadata.items[0].longitude` | `LongitudeOutOfRange_Returns400` |
| 7 | per-item `tileZoom` in `[0, 22]` | FluentValidation | `items[0].tileZoom=30` | `metadata.items[0].tileZoom` | `TileZoomOutOfRange_Returns400` |
| 8 | per-item `tileSizeMeters` > 0 | FluentValidation | `items[0].tileSizeMeters=0` | `metadata.items[0].tileSizeMeters` | `TileSizeMetersZero_Returns400` |
| 9a | per-item `capturedAt` not in future (skew = 30s) | FluentValidation | `capturedAt=UtcNow+1h` | `metadata.items[0].capturedAt` | `CapturedAtFuture_Returns400` |
| 9b | per-item `capturedAt` not older than `MaxAgeDays` (default 7d) | FluentValidation | `capturedAt=UtcNow-60d` | `metadata.items[0].capturedAt` | `CapturedAtTooOld_Returns400` |
| 10 | per-item required fields (`latitude`/`longitude`/`tileZoom`/`tileSizeMeters`/`capturedAt`) present (`[JsonRequired]`) | deserializer | omit `latitude` from one item | `metadata` (deserializer-level; per-field path not available inside form value) | `MissingRequiredField_Returns400` |
| 11 | Unknown root field on `UavTileBatchMetadataPayload` | deserializer | `"debug":42` at metadata root | `metadata` | `UnknownRootField_Returns400` |
| 12 | Unknown nested field on `UavTileMetadata` | deserializer | `"altitude":100` on an item | `metadata` | `UnknownItemField_Returns400` |
| 13 | Type mismatch on per-item field | deserializer | `"latitude":"fifty"` | `metadata` | `LatitudeTypeMismatch_Returns400` |

**Pass criterion**: Every failure sub-case returns HTTP 400 with the expected `errors` key. The happy path returns HTTP 200 + a per-item result list with `status=accepted`. Per-item file rejections (existing `IUavTileQualityGate` semantics: `INVALID_FORMAT`, `WRONG_DIMENSIONS`, `SIZE_OUT_OF_BAND`, `CAPTURED_AT_FUTURE`, `CAPTURED_AT_TOO_OLD`, `IMAGE_TOO_UNIFORM`) still return HTTP 200 with per-item `status=rejected` (AZ-488 contract preserved). **AZ-810 AC-9 verified** by full integration suite green at cycle 8 Step 11 (after the test-data clamp fix — see `_docs/03_implementation/batch_04_cycle8_report.md` AC-9 row + commit `b763da3`).
**AC trace**: AZ-810 AC-1 (14 rules + ProblemDetails shape), AC-2 (happy path unchanged), AC-9 (no AZ-488 regression).
**Notes**: This is the first endpoint where the validation infra had to step **outside** the generic `ValidationEndpointFilter<T>` — multipart form-data is not a JSON body, so the metadata field has to be extracted from `IFormCollection` and deserialized inside a custom filter (`UavUploadValidationFilter`). Three layers compose: (1) deserializer with `JsonSerializerOptions.UnmappedMemberHandling.Disallow` + `[JsonRequired]` — surfaces under `errors["metadata"]`; (2) `UavTileBatchMetadataPayloadValidator` + `UavTileMetadataValidator` (FluentValidation) — error paths prefixed with `metadata.`; (3) envelope cross-field check (`items.Count == files.Count`) inside the filter — surfaces under BOTH `errors["metadata.items"]` AND `errors["files"]`. The `metadata.` prefix and the bare-`"metadata"` key for deserializer-level errors are documented in `_docs/02_document/contracts/api/uav-tile-upload.md` v1.2.0 §Validation Rules.

## BT-31: GET tiles/latlon — Query-Param Strict Validation + Unknown-Param Rejection

**Trigger**: A family of `GET /api/satellite/tiles/latlon?lat=&lon=&zoom=` calls covering AZ-811's 5 rules. The endpoint takes **query parameters** (not a JSON body), so the validator wires through a **novel** `UnknownQueryParameterEndpointFilter` (envelope filter, item 4 of AZ-811's implementation pattern) plus `GetTileByLatLonQueryValidator` (FluentValidation for the typed query params).
**Precondition**: API up; valid JWT attached. `error-shape.md` v1.0.0 + `tile-latlon.md` v1.0.0 frozen.
**Expected**: HTTP 400 with `Content-Type: application/problem+json` for every failure sub-case; HTTP 200 + `DownloadTileResponse` for the happy path. `errors[]` keys name the offending query parameter (e.g. `lat`).

| # | Rule | Trigger excerpt | Expected `errors` key | Test method |
|---|------|-----------------|-----------------------|-------------|
| pos | Happy path | `?lat=47.46&lon=37.64&zoom=18` | HTTP 200 — body shape unchanged | `HappyPath_Returns200` |
| 1 | `lat` in range `[-90, 90]` | `?lat=91` | `lat` | `LatOutOfRange_Returns400` |
| 2 | `lon` in range `[-180, 180]` | `?lon=181` | `lon` | `LonOutOfRange_Returns400` |
| 3 | `zoom` in range `[0, 22]` | `?zoom=30` | `zoom` | `ZoomOutOfRange_Returns400` |
| 4a | `lat` required | omit `?lat=` | `lat` ("`lat` is required") | `MissingLat_Returns400` |
| 4b | Legacy v1 names (`?Latitude=&Longitude=&ZoomLevel=`) | exact pre-AZ-811 wire format | `errors` map names BOTH unknown keys | `LegacyLatitudeLongitudeNames_Returns400` |
| 4c | Hostile / typo query keys | `?debug=1&admin=true` | `errors` map names BOTH unknown keys | `UnknownQueryKeys_Returns400` |
| 5 | `lat` type mismatch | `?lat=fifty` | `lat` | `LatTypeMismatch_Returns400` |

**Pass criterion**: Every failure sub-case returns HTTP 400 with the expected `errors` key. The happy path returns HTTP 200 + a non-empty `tileId` and a path of shape `tiles/{zoom}/{x}/{y}.jpg`. No regression in `TileByLatLonTests.cs` (cycle 8 Step 11 — green). BT-N01 (`lat=91&lon=181&zoom=18`) and BT-N02 (`zoom=25`) — pre-cycle-8 negative scenarios that only asserted "HTTP 4xx or error in body" — are now strictly bound: BT-N01 produces HTTP 400 with `errors["lat"]` AND `errors["lon"]`; BT-N02 produces HTTP 400 with `errors["zoom"]`.
**AC trace**: AZ-811 AC-1 (5 rules + ProblemDetails shape), AC-2 (happy path), AC-9 (the novel unknown-query-param envelope filter is documented in `_docs/02_document/modules/api_program.md` for reuse).
**Notes**: This is the first endpoint to need a generic **unknown-query-param rejection** layer — ASP.NET's default model binder silently ignores unknown query parameters (parallel to `UnmappedMemberHandling.Disallow` for JSON bodies, but no built-in equivalent exists for query strings). The new `UnknownQueryParameterEndpointFilter` introspects the route's declared parameters and rejects any extra keys. Sub-cases `4b` and `4c` exercise this filter: `4b` proves the pre-AZ-811 wire format (`?Latitude=&Longitude=&ZoomLevel=`) that silently fell back to `lat=0, lon=0, zoom=0` now fails fast with HTTP 400 naming all three unknown keys; `4c` proves the same path catches arbitrary hostile / typo keys. The filter is designed for reuse by any future query-param endpoint (AZ-811 AC-9).