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Oleksandr Bezdieniezhnykh b0fffa6d42 [AZ-284] Autodev baseline + testability refactor

Phase A baseline outputs from /autodev (Steps 1-5):
- Problem & solution docs (_docs/00_problem, _docs/01_solution)
- Codebase documentation (_docs/02_document) incl. architecture,
  module-layout, glossary, system-flows, baseline compliance scan
- Test specs (blackbox, performance, resilience, security, resource,
  traceability matrix)
- Test task decomposition (_docs/02_tasks/todo): AZ-285..AZ-290
- Testability refactor (_docs/04_refactoring/01-testability-refactoring):
  - TC-01 Move DownloadedTileInfoV2 + new ExistingTileInfo to Common.DTO
  - TC-02 Replace dead ISatelliteDownloader API with real signatures
  - TC-03 GoogleMapsDownloaderV2 implements ISatelliteDownloader
  - TC-04 TileService depends on ISatelliteDownloader (mockable)
  - TC-05 DI + endpoints use ISatelliteDownloader
- Test runner scripts (scripts/run-tests.sh, run-performance-tests.sh)
- Autodev state pointer (_docs/_autodev_state.md)

Prepares the codebase for AZ-285..AZ-290 unit/integration test work.

Co-authored-by: Cursor <cursoragent@cursor.com>

2026-05-10 04:44:08 +03:00

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Unit Tests: TileService

Task: AZ-286_tile_service_tests Name: Unit tests: TileService (download, cache, dedup) Complexity: 3 points Dependencies: AZ-285 Component: Blackbox Tests Tracker: AZ-286 Epic: AZ-284

Scenarios

BT-01: Tile download — mock ISatelliteDownloader.DownloadSingleTileAsync returns tile info; verify TileService stores it via ITileRepository.InsertAsync
BT-02: Cache reuse — mock ITileRepository.GetTilesByRegionAsync returns existing tile; verify ISatelliteDownloader receives existing tiles to skip
BT-N01: Invalid coordinates — verify appropriate error handling for out-of-range lat/lon
BT-N02: Invalid zoom level — verify GoogleMapsDownloaderV2 rejects zoom levels outside allowed range

Test Data

Coordinates from input_data/test_coordinates.md: lat=47.461747, lon=37.647063, zoom=18

Expected Results

Per input_data/expected_results/results_report.md: tile with zoomLevel=18, tileSizePixels=256, imageType="jpg", non-empty filePath

Acceptance Criteria

AC-1: All 4 scenarios have passing tests AC-2: ISatelliteDownloader is mocked (no real Google Maps calls) AC-3: Tests verify both happy path and error paths

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