# Module: Tests/SatelliteProvider.Tests

## Purpose
Unit test project for component-internal logic. Original AZ-2/AZ-3 era had only a placeholder dummy; the suite has since grown across the AZ-285..AZ-380 baseline + cycle 1 (AZ-484) + cycle 2 (AZ-487, AZ-488) tracks. The "dummy test only" note in older revisions of this file is obsolete — the project now hosts the full unit suite executed by `scripts/run-tests.sh --unit-only` and CI's `01-test.yml`.

## Public Interface (test classes)

Existing baseline (pre-cycle-2) test classes cover `TileService`, `RegionService`, `RouteService`, geo math, repositories, validators, idempotency, and migration helpers — not enumerated exhaustively here. Cycle-2 additions:

### AZ-487 — JWT validation baseline
- `Authentication/AuthenticationServiceCollectionExtensionsTests` — `AddSatelliteJwt_RegistersJwtBearerScheme`, `AddSatelliteJwt_ThrowsOnMissingSecret`, `AddSatelliteJwt_ThrowsOnShortSecret`.
- `Authentication/JwtTokenFactoryTests` — `Create_ProducesTokenValidatedByMatchingParameters`, `CreateExpired_TokenFailsValidationWithLifetimeException`, `Create_WithExtraClaims_PropagatesClaimsThroughValidation`.
- `TestUtilities/JwtTokenFactory` — helper that mints HS256 tokens with the same `TokenValidationParameters` used in production. Adjusts `notBefore` for negative-lifetime requests so `JwtSecurityToken` accepts the value and downstream lifetime validation can fire (`IDX12401` workaround documented inline).

### AZ-488 — UAV tile upload
- `UavTileQualityGateTests` — one happy path + ≥ 1 reject path per rule (Rule 1 INVALID_FORMAT × 2, Rule 2 SIZE_OUT_OF_BAND × 2, Rule 3 WRONG_DIMENSIONS × 1, Rule 4 CAPTURED_AT_FUTURE / _TOO_OLD × 2, Rule 5 IMAGE_TOO_UNIFORM × 1) + rule-ordering determinism. Uses a `FixedTimeProvider` for Rule-4 isolation and `UavTileImageFactory` for deterministic JPEG fixtures.
- `UavTileUploadHandlerTests` — end-to-end with a mocked `ITileRepository`: 1-item happy path, 3-item mixed batch (file written + `InsertAsync` called only for accepted), per-source UPSERT pass-through.
- `UavTileFilePathTests` — verifies `BuildUavTileFilePath` produces `tiles/uav/{z}/{x}/{y}.jpg` for sample (z, x, y) tuples and that integer-typed coordinates make string-injection of path traversal impossible.
- `Authentication/PermissionsRequirementTests` — `PermissionsAuthorizationHandler` correctly accepts a `permissions` claim shaped as a single string OR as a JSON array, rejects when the requested permission is absent, and short-circuits when the principal has no `permissions` claim at all.
- `TestUtilities/UavTileImageFactory` — programmatic JPEG factories used by the gate + handler tests: `CreateValidJpeg(width, height, seed)`, `CreateUniformJpeg`, `CreatePng` (for Rule 1 negative path).

## Internal Logic
- Tests follow Arrange / Act / Assert. Time-dependent paths inject a `FixedTimeProvider` (cycle-2 addition) so Rule 4 has deterministic age windows.
- `JwtSecurityTokenHandler.MapInboundClaims = false` is set explicitly in JWT tests so claims read by their original names (`sub`, `permissions`, …) rather than the framework-remapped names.

## Dependencies
- Project references: `SatelliteProvider.Services.TileDownloader`, `SatelliteProvider.Services.RegionProcessing`, `SatelliteProvider.Services.RouteManagement`, `SatelliteProvider.Common`, `SatelliteProvider.DataAccess`, `SatelliteProvider.Api` (for the Authentication tests — added in AZ-487).
- NuGet: xUnit (2.5.3), Moq (4.20.72), FluentAssertions (8.8.0), coverlet.collector (6.0.0), Microsoft.NET.Test.Sdk (17.8.0), Microsoft.Extensions.* (Caching.Memory, Configuration, DI, Logging, Options, Http), `Microsoft.AspNetCore.Authentication.JwtBearer` 8.0.21 (added by AZ-487 for the DI + handler tests), `SixLabors.ImageSharp` 3.1.11 (added by AZ-488 for the gate tests).
- `appsettings.json` copied to output (used by Authentication tests for the `Jwt` section binding scenario).

## Consumers
- CI pipeline (`01-test.yml`) and `scripts/run-tests.sh --unit-only` run `dotnet test` against this project.

## Tests
This IS the test module. Cycle-2 added ~25 unit tests on top of the existing baseline; the full project executes in seconds (no external services required).