Files
satellite-provider/SatelliteProvider.IntegrationTests/MigrationTests.cs
T
Oleksandr Bezdieniezhnykh c646aa93e2
ci/woodpecker/push/01-test Pipeline was successful
ci/woodpecker/push/02-build-push Pipeline was successful
[AZ-503] Tile identity → UUIDv5 + integer UPSERT (foundation)
Foundation half of original AZ-503 (split during /autodev step 10 batch 2
on user choice; deferred work moved to AZ-505 with a Blocks link).

Adds deterministic tile identity (UUIDv5 over (z, x, y, source, flight_id))
shared cross-repo with gps-denied-onboard via the pinned TileNamespace
5b8d0c2e-7f1a-4d3b-9c5e-1f3a8e7d2b6c, switches the tiles UPSERT key from
floats to integers with per-flight separation, plumbs FlightId through
UavTileMetadata + handler, and writes UAV evidence to per-flight
on-disk directories so two flights at the same (z, x, y) coexist.

- Common: pure-C# RFC 9562 Uuidv5 (no third-party dep) + FlightId DTO
  field; 10 Python-reference unit vectors verify byte parity.
- DataAccess: migration 014 adds flight_id (uuid NULL), location_hash
  (uuid NOT NULL, backfilled via session-scoped pg_temp.uuidv5),
  content_sha256 (bytea NULL), legacy_id (uuid NULL = preserves
  pre-AZ-503 random id one cycle); drops idx_tiles_unique_location_source
  (AZ-484) and adds idx_tiles_unique_identity keyed on
  (tile_zoom, tile_x, tile_y, tile_size_meters, source,
   COALESCE(flight_id, '00000000-...'::uuid)) + idx_tiles_location_hash.
- TileRepository: ColumnList + UPSERT updated; id never updated on
  conflict (preserves AC-2 idempotence). UpdateAsync extended.
- Services: TileService and UavTileUploadHandler compute deterministic
  Id + LocationHash + ContentSha256 before insert; UAV file path
  becomes ./tiles/uav/{flight_id or 'none'}/{z}/{x}/{y}.jpg.
- Tests: Uuidv5Tests (10 reference vectors), UavTileFilePathTests
  (per-flight + anonymous paths), UavTileUploadHandlerTests (AC-2,
  AC-3, AC-7, AC-11 unit-level), UavUploadTests (AC-3 + AC-4
  integration: multi-flight DB coexistence with shared location_hash
  + distinct file_path; float-different lat/lon collapse to 1 row),
  MigrationTests (column shape, idx_tiles_unique_identity supersedes
  AZ-484 index, deterministic backfill).
- IntegrationTests project references Common to reuse Uuidv5 in raw
  SQL seeds.
- AZ-488 MultiSourceCoexistence seed fixed to populate location_hash
  (otherwise migration 014's NOT NULL constraint fails).

ACs covered: AC-1, AC-2, AC-3, AC-4, AC-7, AC-8, AC-11.
ACs deferred to AZ-505: AC-5, AC-6, AC-9, AC-10, AC-12.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-05-12 17:07:35 +03:00

684 lines
31 KiB
C#

using Npgsql;
namespace SatelliteProvider.IntegrationTests;
public static class MigrationTests
{
public static async Task RunAll()
{
Console.WriteLine();
Console.WriteLine("Test: Migration 012 (AZ-357 / C06)");
Console.WriteLine("==================================");
Console.WriteLine();
var connectionString = Environment.GetEnvironmentVariable("DB_CONNECTION_STRING")
?? "Host=postgres;Port=5432;Database=satelliteprovider;Username=postgres;Password=postgres";
await DedupeSqlCollapsesDuplicatesByLatestUpdatedAt_AZ357_AC2(connectionString);
Console.WriteLine("✓ Migration 012 tests: PASSED");
Console.WriteLine();
Console.WriteLine("Test: Migration 013 (AZ-484)");
Console.WriteLine("============================");
Console.WriteLine();
await BackfillUpdateAssignsGoogleMapsAndCapturedAt_AZ484_AC4(connectionString);
await MultiSourceInsertCoexistsUnderNewIndex_AZ484_AC1(connectionString);
await MostRecentAcrossSourcesSelection_AZ484_AC2(connectionString);
await SameSourceUpsertReplacesPreviousRow_AZ484_AC3(connectionString);
await Az503MigrationSupersedesAz484UniqueIndex(connectionString);
Console.WriteLine("✓ Migration 013 tests: PASSED");
Console.WriteLine();
Console.WriteLine("Test: Migration 014 (AZ-503-foundation)");
Console.WriteLine("========================================");
Console.WriteLine();
await Az503ColumnsExistAndLocationHashIsNotNull(connectionString);
await Az503NewUniqueIndexCoversIntegerKeyAndFlightId(connectionString);
await Az503LocationHashBackfillIsDeterministic(connectionString);
Console.WriteLine("✓ Migration 014 tests: PASSED");
}
private static async Task DedupeSqlCollapsesDuplicatesByLatestUpdatedAt_AZ357_AC2(string connectionString)
{
Console.WriteLine("AZ-357 AC-2 part 1: dedupe SQL keeps row with highest updated_at, tie-breaks on id");
// Arrange
await using var conn = new NpgsqlConnection(connectionString);
await conn.OpenAsync();
// Session-scoped TEMP table (auto-dropped when the connection closes).
// Do NOT use ON COMMIT DROP — Npgsql commits implicitly after each command,
// which would drop the table before the next INSERT runs.
await ExecAsync(conn, """
CREATE TEMP TABLE tiles_dedupe_test (
id UUID PRIMARY KEY,
latitude DOUBLE PRECISION NOT NULL,
longitude DOUBLE PRECISION NOT NULL,
tile_zoom INT NOT NULL,
tile_size_meters DOUBLE PRECISION NOT NULL,
version INT,
updated_at TIMESTAMP NOT NULL
);
""");
// Three rows that all share (lat=10.0, lon=20.0, zoom=18, size=100):
// - row A: 2024 version, oldest updated_at -> should be deleted
// - row B: 2025 version, middle updated_at -> should be deleted
// - row C: 2026 version, newest updated_at -> should survive
// Two rows that share (lat=11.0, lon=21.0, zoom=18, size=100) but tie on updated_at:
// - row D: id larger, same updated_at as E -> should survive (id-tiebreak wins)
// - row E: id smaller, same updated_at as D -> should be deleted
// One unique row (lat=12.0, lon=22.0, zoom=18, size=100):
// - row F: should always survive
var idA = Guid.Parse("11111111-1111-1111-1111-111111111111");
var idB = Guid.Parse("22222222-2222-2222-2222-222222222222");
var idC = Guid.Parse("33333333-3333-3333-3333-333333333333");
var idD = Guid.Parse("ffffffff-ffff-ffff-ffff-ffffffffffff");
var idE = Guid.Parse("aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa");
var idF = Guid.Parse("99999999-9999-9999-9999-999999999999");
await ExecAsync(conn, """
INSERT INTO tiles_dedupe_test (id, latitude, longitude, tile_zoom, tile_size_meters, version, updated_at) VALUES
(@idA, 10.0, 20.0, 18, 100, 2024, '2024-06-01 00:00:00'),
(@idB, 10.0, 20.0, 18, 100, 2025, '2025-06-01 00:00:00'),
(@idC, 10.0, 20.0, 18, 100, 2026, '2026-06-01 00:00:00'),
(@idD, 11.0, 21.0, 18, 100, 2025, '2025-09-01 00:00:00'),
(@idE, 11.0, 21.0, 18, 100, 2026, '2025-09-01 00:00:00'),
(@idF, 12.0, 22.0, 18, 100, 2025, '2025-01-01 00:00:00');
""",
("idA", idA), ("idB", idB), ("idC", idC), ("idD", idD), ("idE", idE), ("idF", idF));
// Act — run the same dedupe pattern that 012_DropTileVersionConstraint.sql uses, against the temp table
await ExecAsync(conn, """
DELETE FROM tiles_dedupe_test
WHERE id IN (
SELECT id FROM (
SELECT id,
ROW_NUMBER() OVER (
PARTITION BY latitude, longitude, tile_zoom, tile_size_meters
ORDER BY updated_at DESC, id DESC
) AS rn
FROM tiles_dedupe_test
) ranked
WHERE rn > 1
);
""");
// Assert
var survivors = await QueryGuidsAsync(conn, "SELECT id FROM tiles_dedupe_test ORDER BY id;");
var expected = new HashSet<Guid> { idC, idD, idF };
var actual = new HashSet<Guid>(survivors);
if (!actual.SetEquals(expected))
{
throw new Exception(
$"AZ-357 AC-2 dedupe failed.\n" +
$" Expected survivors: {string.Join(", ", expected)}\n" +
$" Actual survivors: {string.Join(", ", actual)}");
}
Console.WriteLine(" ✓ Dedupe collapsed 3-way duplicate to row with newest updated_at (idC)");
Console.WriteLine(" ✓ Dedupe broke updated_at tie by largest id (idD survived, idE removed)");
Console.WriteLine(" ✓ Unique row (idF) preserved");
}
private static async Task Az503MigrationSupersedesAz484UniqueIndex(string connectionString)
{
Console.WriteLine();
Console.WriteLine("AZ-484/AZ-503 supersession: AZ-503 migration 014 drops the AZ-484 unique index in favour of the integer-key + flight_id index");
// Arrange / Act
await using var conn = new NpgsqlConnection(connectionString);
await conn.OpenAsync();
var rows = await QueryIndexesAsync(conn);
// Assert — AZ-484's idx_tiles_unique_location_source must NOT exist anymore after migration 014.
var supersededIndex = rows.FirstOrDefault(r => string.Equals(r.Name, "idx_tiles_unique_location_source", StringComparison.Ordinal));
if (supersededIndex.Def is not null)
{
throw new Exception(
"AZ-503: legacy AZ-484 index 'idx_tiles_unique_location_source' still exists after migration 014 — migration did not drop it. " +
$"Definition: {supersededIndex.Def}");
}
// Pre-AZ-484 4-column index must also remain dropped.
var preAz484Index = rows.FirstOrDefault(r => string.Equals(r.Name, "idx_tiles_unique_location", StringComparison.Ordinal));
if (preAz484Index.Def is not null)
{
throw new Exception(
"AZ-503: pre-AZ-484 4-column index 'idx_tiles_unique_location' reappeared after migration 014. " +
$"Definition: {preAz484Index.Def}");
}
Console.WriteLine(" ✓ AZ-484 'idx_tiles_unique_location_source' dropped by migration 014 (superseded)");
Console.WriteLine(" ✓ Pre-AZ-484 'idx_tiles_unique_location' remains dropped");
}
private static async Task Az503ColumnsExistAndLocationHashIsNotNull(string connectionString)
{
Console.WriteLine("AZ-503 AC-6: migration 014 adds flight_id, location_hash, content_sha256, legacy_id with correct nullability");
// Arrange
await using var conn = new NpgsqlConnection(connectionString);
await conn.OpenAsync();
const string sql = @"
SELECT column_name, data_type, is_nullable
FROM information_schema.columns
WHERE table_schema = 'public' AND table_name = 'tiles'
AND column_name IN ('flight_id', 'location_hash', 'content_sha256', 'legacy_id');";
var columns = new Dictionary<string, (string DataType, bool IsNullable)>(StringComparer.Ordinal);
await using (var cmd = new NpgsqlCommand(sql, conn))
await using (var reader = await cmd.ExecuteReaderAsync())
{
while (await reader.ReadAsync())
{
columns[reader.GetString(0)] = (
reader.GetString(1),
string.Equals(reader.GetString(2), "YES", StringComparison.OrdinalIgnoreCase));
}
}
// Assert — flight_id, location_hash, content_sha256, legacy_id must exist with the contractual shape.
AssertColumn(columns, "flight_id", expectedType: "uuid", expectedNullable: true);
AssertColumn(columns, "location_hash", expectedType: "uuid", expectedNullable: false);
AssertColumn(columns, "content_sha256", expectedType: "bytea", expectedNullable: true);
AssertColumn(columns, "legacy_id", expectedType: "uuid", expectedNullable: true);
Console.WriteLine(" ✓ flight_id (uuid, nullable), location_hash (uuid, NOT NULL), content_sha256 (bytea, nullable), legacy_id (uuid, nullable)");
}
private static async Task Az503NewUniqueIndexCoversIntegerKeyAndFlightId(string connectionString)
{
Console.WriteLine();
Console.WriteLine("AZ-503 AC-9: idx_tiles_unique_identity is unique on (tile_zoom, tile_x, tile_y, tile_size_meters, source, COALESCE(flight_id, ...))");
// Arrange / Act
await using var conn = new NpgsqlConnection(connectionString);
await conn.OpenAsync();
var rows = await QueryIndexesAsync(conn);
// Assert
var newIndex = rows.FirstOrDefault(r => string.Equals(r.Name, "idx_tiles_unique_identity", StringComparison.Ordinal));
if (newIndex.Def is null)
{
throw new Exception(
"AZ-503 AC-9: expected unique index 'idx_tiles_unique_identity' on tiles after migration 014, but it is not present. " +
$"Found indexes: {string.Join(", ", rows.Select(r => r.Name))}");
}
var lower = newIndex.Def.ToLowerInvariant();
if (!lower.Contains("unique"))
{
throw new Exception($"AZ-503 AC-9: idx_tiles_unique_identity is not UNIQUE. Definition: {newIndex.Def}");
}
foreach (var col in new[] { "tile_zoom", "tile_x", "tile_y", "tile_size_meters", "source", "flight_id" })
{
if (!lower.Contains(col))
{
throw new Exception($"AZ-503 AC-9: idx_tiles_unique_identity missing column '{col}'. Definition: {newIndex.Def}");
}
}
if (!lower.Contains("coalesce"))
{
throw new Exception(
$"AZ-503 AC-9: idx_tiles_unique_identity must wrap flight_id in COALESCE so NULL flights collide deterministically. Definition: {newIndex.Def}");
}
// A non-unique index on location_hash should also exist so the upcoming AZ-505 covering scan has a starting point.
var locationHashIndex = rows.FirstOrDefault(r => string.Equals(r.Name, "idx_tiles_location_hash", StringComparison.Ordinal));
if (locationHashIndex.Def is null)
{
throw new Exception(
"AZ-503 AC-9: expected supporting index 'idx_tiles_location_hash' after migration 014, but it is not present.");
}
Console.WriteLine($" ✓ New unique index present: {newIndex.Def}");
Console.WriteLine($" ✓ Supporting location_hash index present: {locationHashIndex.Def}");
}
private static async Task Az503LocationHashBackfillIsDeterministic(string connectionString)
{
Console.WriteLine();
Console.WriteLine("AZ-503 AC-6: the location_hash backfill function used by migration 014 is deterministic and matches RFC 9562 §5.5");
// Arrange — the migration installs pg_temp.uuidv5 then drops it; replay the same SHA-1 logic in a session
// to confirm that two identical inputs produce byte-identical UUIDv5 values, and that two distinct inputs
// produce different values.
await using var conn = new NpgsqlConnection(connectionString);
await conn.OpenAsync();
await ExecAsync(conn, "CREATE EXTENSION IF NOT EXISTS pgcrypto;");
await ExecAsync(conn, """
CREATE OR REPLACE FUNCTION pg_temp.uuidv5_probe(namespace uuid, name text)
RETURNS uuid
LANGUAGE plpgsql
IMMUTABLE
AS $$
DECLARE
namespace_bytes bytea;
input_bytes bytea;
hash_bytes bytea;
v5_bytes bytea;
BEGIN
namespace_bytes := decode(replace(namespace::text, '-', ''), 'hex');
input_bytes := namespace_bytes || convert_to(name, 'UTF8');
hash_bytes := digest(input_bytes, 'sha1');
v5_bytes := substring(hash_bytes from 1 for 16);
v5_bytes := set_byte(v5_bytes, 6, (get_byte(v5_bytes, 6) & 15) | 80);
v5_bytes := set_byte(v5_bytes, 8, (get_byte(v5_bytes, 8) & 63) | 128);
RETURN encode(v5_bytes, 'hex')::uuid;
END;
$$;
""");
// Act — location_hash canonical name is "{zoom}/{x}/{y}" (matches the migration backfill
// and SatelliteProvider.Services.TileDownloader.TileService.BuildTileEntity).
const string probeSql = @"
SELECT
pg_temp.uuidv5_probe('5b8d0c2e-7f1a-4d3b-9c5e-1f3a8e7d2b6c'::uuid, '18/12345/23456') AS v1,
pg_temp.uuidv5_probe('5b8d0c2e-7f1a-4d3b-9c5e-1f3a8e7d2b6c'::uuid, '18/12345/23456') AS v1_again,
pg_temp.uuidv5_probe('5b8d0c2e-7f1a-4d3b-9c5e-1f3a8e7d2b6c'::uuid, '18/12346/23456') AS v2;";
Guid v1, v1Again, v2;
await using (var cmd = new NpgsqlCommand(probeSql, conn))
await using (var reader = await cmd.ExecuteReaderAsync())
{
if (!await reader.ReadAsync())
{
throw new Exception("AZ-503 AC-6: backfill probe returned no rows.");
}
v1 = reader.GetGuid(0);
v1Again = reader.GetGuid(1);
v2 = reader.GetGuid(2);
}
// Assert
if (v1 != v1Again)
{
throw new Exception(
$"AZ-503 AC-6: location_hash backfill is non-deterministic. v1={v1}, v1_again={v1Again}.");
}
if (v1 == v2)
{
throw new Exception(
$"AZ-503 AC-6: location_hash backfill produced the same UUID for different (x,y) tuples. v1={v1}, v2={v2}.");
}
// Cross-check that the live tiles.location_hash column matches the same function for at least one row, if any rows exist.
// (Pre-existing rows are backfilled by migration 014; new rows would be written by app code that uses the C# Uuidv5.Create.)
long sampleRowCount = await ScalarLongAsync(conn, "SELECT COUNT(*) FROM tiles;");
if (sampleRowCount > 0)
{
const string sampleSql = @"
SELECT
location_hash,
pg_temp.uuidv5_probe(
'5b8d0c2e-7f1a-4d3b-9c5e-1f3a8e7d2b6c'::uuid,
tile_zoom::text || '/' || tile_x::text || '/' || tile_y::text
) AS expected_hash
FROM tiles
LIMIT 1;";
Guid storedHash, expectedHash;
await using (var cmd = new NpgsqlCommand(sampleSql, conn))
await using (var reader = await cmd.ExecuteReaderAsync())
{
if (await reader.ReadAsync())
{
storedHash = reader.GetGuid(0);
expectedHash = reader.GetGuid(1);
if (storedHash != expectedHash)
{
throw new Exception(
$"AZ-503 AC-6: tiles.location_hash drift for sample row. stored={storedHash}, expected={expectedHash}. " +
"Backfill formula and live UUIDv5 implementation must agree on the canonical name string.");
}
Console.WriteLine($" ✓ Sample row location_hash matches the canonical UUIDv5 formula: {storedHash}");
}
}
}
else
{
Console.WriteLine(" (no rows in tiles table; deterministic-probe-only assertion)");
}
Console.WriteLine(" ✓ UUIDv5 backfill probe is deterministic across two identical inputs");
Console.WriteLine(" ✓ UUIDv5 backfill probe distinguishes different (x,y) tuples");
}
private static async Task<List<(string Name, string Def)>> QueryIndexesAsync(NpgsqlConnection conn)
{
const string sql = @"
SELECT indexname, indexdef
FROM pg_indexes
WHERE schemaname = 'public'
AND tablename = 'tiles';";
var rows = new List<(string Name, string Def)>();
await using var cmd = new NpgsqlCommand(sql, conn);
await using var reader = await cmd.ExecuteReaderAsync();
while (await reader.ReadAsync())
{
rows.Add((reader.GetString(0), reader.GetString(1)));
}
return rows;
}
private static void AssertColumn(
Dictionary<string, (string DataType, bool IsNullable)> columns,
string columnName,
string expectedType,
bool expectedNullable)
{
if (!columns.TryGetValue(columnName, out var info))
{
throw new Exception(
$"AZ-503 AC-6: column 'tiles.{columnName}' was not created by migration 014. " +
$"Found columns: {string.Join(", ", columns.Keys)}");
}
if (!string.Equals(info.DataType, expectedType, StringComparison.OrdinalIgnoreCase))
{
throw new Exception(
$"AZ-503 AC-6: column 'tiles.{columnName}' has data_type='{info.DataType}', expected '{expectedType}'.");
}
if (info.IsNullable != expectedNullable)
{
throw new Exception(
$"AZ-503 AC-6: column 'tiles.{columnName}' is_nullable={info.IsNullable}, expected {expectedNullable}.");
}
}
private static async Task BackfillUpdateAssignsGoogleMapsAndCapturedAt_AZ484_AC4(string connectionString)
{
Console.WriteLine();
Console.WriteLine("AZ-484 AC-4: backfill UPDATE assigns source='google_maps' and captured_at = created_at, preserving row count");
// Arrange — TEMP table simulating the pre-migration tiles shape with 3 sample rows.
await using var conn = new NpgsqlConnection(connectionString);
await conn.OpenAsync();
await ExecAsync(conn, """
CREATE TEMP TABLE tiles_backfill_test (
id UUID PRIMARY KEY,
created_at TIMESTAMP NOT NULL,
source VARCHAR(32),
captured_at TIMESTAMP
);
""");
var idA = Guid.Parse("aaaaaaaa-1111-1111-1111-111111111111");
var idB = Guid.Parse("bbbbbbbb-2222-2222-2222-222222222222");
var idC = Guid.Parse("cccccccc-3333-3333-3333-333333333333");
await ExecAsync(conn, """
INSERT INTO tiles_backfill_test (id, created_at) VALUES
(@idA, '2024-01-15 12:34:56'),
(@idB, '2025-06-20 03:00:00'),
(@idC, '2026-05-11 06:00:00');
""",
("idA", idA), ("idB", idB), ("idC", idC));
// Act — apply the same UPDATE pattern that migration 013 uses.
await ExecAsync(conn, """
UPDATE tiles_backfill_test SET source = 'google_maps' WHERE source IS NULL;
UPDATE tiles_backfill_test SET captured_at = created_at WHERE captured_at IS NULL;
""");
// Assert
var rows = new List<(Guid Id, string Source, DateTime CreatedAt, DateTime CapturedAt)>();
await using (var cmd = new NpgsqlCommand(
"SELECT id, source, created_at, captured_at FROM tiles_backfill_test ORDER BY id;", conn))
await using (var reader = await cmd.ExecuteReaderAsync())
{
while (await reader.ReadAsync())
{
rows.Add((
reader.GetGuid(0),
reader.GetString(1),
reader.GetDateTime(2),
reader.GetDateTime(3)));
}
}
if (rows.Count != 3)
{
throw new Exception($"AZ-484 AC-4 backfill changed row count. Expected 3, got {rows.Count}.");
}
foreach (var row in rows)
{
if (row.Source != "google_maps")
{
throw new Exception($"AZ-484 AC-4: row {row.Id} has source='{row.Source}', expected 'google_maps'.");
}
if (row.CapturedAt != row.CreatedAt)
{
throw new Exception($"AZ-484 AC-4: row {row.Id} captured_at={row.CapturedAt:o} does not equal created_at={row.CreatedAt:o}.");
}
}
Console.WriteLine(" ✓ All 3 backfilled rows have source='google_maps' and captured_at = created_at");
}
private static async Task MultiSourceInsertCoexistsUnderNewIndex_AZ484_AC1(string connectionString)
{
Console.WriteLine();
Console.WriteLine("AZ-484 AC-1: per-source unique index lets two producers store distinct rows for the same cell");
// Arrange — TEMP table replicating the 5-column unique index shape.
await using var conn = new NpgsqlConnection(connectionString);
await conn.OpenAsync();
await CreateTempTilesTable(conn, "tiles_multisource_test");
await ExecAsync(conn, """
CREATE UNIQUE INDEX idx_tiles_multisource_test_unique
ON tiles_multisource_test (latitude, longitude, tile_zoom, tile_size_meters, source);
""");
var idGoogle = Guid.NewGuid();
var idUav = Guid.NewGuid();
// Act
await ExecAsync(conn, """
INSERT INTO tiles_multisource_test (id, latitude, longitude, tile_zoom, tile_size_meters, source, captured_at, file_path, updated_at)
VALUES (@id, 47.5, 37.6, 18, 100, 'google_maps', '2026-05-10 00:00:00', 'tiles/google.jpg', '2026-05-10 00:00:00');
""", ("id", idGoogle));
await ExecAsync(conn, """
INSERT INTO tiles_multisource_test (id, latitude, longitude, tile_zoom, tile_size_meters, source, captured_at, file_path, updated_at)
VALUES (@id, 47.5, 37.6, 18, 100, 'uav', '2026-05-11 00:00:00', 'tiles/uav.jpg', '2026-05-11 00:00:00');
""", ("id", idUav));
// Assert
var rowCount = await ScalarLongAsync(conn,
"SELECT COUNT(*) FROM tiles_multisource_test WHERE latitude = 47.5 AND longitude = 37.6 AND tile_zoom = 18 AND tile_size_meters = 100;");
if (rowCount != 2)
{
throw new Exception($"AZ-484 AC-1: expected 2 rows for the cell after multi-source insert, got {rowCount}.");
}
Console.WriteLine(" ✓ Both google_maps and uav rows coexist under the 5-column unique index");
}
private static async Task MostRecentAcrossSourcesSelection_AZ484_AC2(string connectionString)
{
Console.WriteLine();
Console.WriteLine("AZ-484 AC-2: most-recent-across-sources selection rule returns the latest captured_at row");
// Arrange — TEMP table with two rows for the same cell, distinct sources, T2 > T1.
await using var conn = new NpgsqlConnection(connectionString);
await conn.OpenAsync();
await CreateTempTilesTable(conn, "tiles_selection_test");
var idGoogleT1 = Guid.NewGuid();
var idUavT2 = Guid.NewGuid();
await ExecAsync(conn, """
INSERT INTO tiles_selection_test (id, latitude, longitude, tile_zoom, tile_size_meters, source, captured_at, file_path, updated_at)
VALUES
(@idG, 48.0, 38.0, 18, 100, 'google_maps', '2026-04-01 00:00:00', 'g.jpg', '2026-04-01 00:00:00'),
(@idU, 48.0, 38.0, 18, 100, 'uav', '2026-05-01 00:00:00', 'u.jpg', '2026-05-01 00:00:00');
""",
("idG", idGoogleT1), ("idU", idUavT2));
// Act — same SELECT shape used by TileRepository.GetByTileCoordinatesAsync.
Guid? winnerId;
string? winnerSource;
await using (var cmd = new NpgsqlCommand("""
SELECT id, source FROM tiles_selection_test
WHERE latitude = 48.0 AND longitude = 38.0 AND tile_zoom = 18 AND tile_size_meters = 100
ORDER BY captured_at DESC, updated_at DESC, id DESC
LIMIT 1;
""", conn))
await using (var reader = await cmd.ExecuteReaderAsync())
{
if (!await reader.ReadAsync())
{
throw new Exception("AZ-484 AC-2: selection query returned no rows; expected the uav row.");
}
winnerId = reader.GetGuid(0);
winnerSource = reader.GetString(1);
}
// Assert
if (winnerId != idUavT2 || winnerSource != "uav")
{
throw new Exception(
$"AZ-484 AC-2: expected uav row (id={idUavT2}) to win, got id={winnerId} source='{winnerSource}'.");
}
Console.WriteLine(" ✓ Selection rule picked the uav row (captured_at T2 > T1) deterministically");
}
private static async Task SameSourceUpsertReplacesPreviousRow_AZ484_AC3(string connectionString)
{
Console.WriteLine();
Console.WriteLine("AZ-484 AC-3: same-source UPSERT keeps a single row with refreshed captured_at and file_path");
// Arrange — TEMP table with the 5-column unique index so ON CONFLICT works.
await using var conn = new NpgsqlConnection(connectionString);
await conn.OpenAsync();
await CreateTempTilesTable(conn, "tiles_upsert_test");
await ExecAsync(conn, """
CREATE UNIQUE INDEX idx_tiles_upsert_test_unique
ON tiles_upsert_test (latitude, longitude, tile_zoom, tile_size_meters, source);
""");
var idFirst = Guid.NewGuid();
var idSecond = Guid.NewGuid();
await ExecAsync(conn, """
INSERT INTO tiles_upsert_test (id, latitude, longitude, tile_zoom, tile_size_meters, source, captured_at, file_path, updated_at)
VALUES (@id, 49.0, 39.0, 18, 100, 'uav', '2026-04-01 00:00:00', 'first.jpg', '2026-04-01 00:00:00');
""", ("id", idFirst));
// Act — second insert for the same cell+source uses the same UPSERT pattern as TileRepository.InsertAsync.
await ExecAsync(conn, """
INSERT INTO tiles_upsert_test (id, latitude, longitude, tile_zoom, tile_size_meters, source, captured_at, file_path, updated_at)
VALUES (@id, 49.0, 39.0, 18, 100, 'uav', '2026-05-01 00:00:00', 'second.jpg', '2026-05-01 00:00:00')
ON CONFLICT (latitude, longitude, tile_zoom, tile_size_meters, source)
DO UPDATE SET
file_path = EXCLUDED.file_path,
captured_at = EXCLUDED.captured_at,
updated_at = EXCLUDED.updated_at;
""", ("id", idSecond));
// Assert
long rowCount = 0;
DateTime capturedAt = DateTime.MinValue;
string? filePath = null;
await using (var cmd = new NpgsqlCommand("""
SELECT COUNT(*) OVER () AS total, captured_at, file_path
FROM tiles_upsert_test
WHERE latitude = 49.0 AND longitude = 39.0 AND tile_zoom = 18 AND tile_size_meters = 100 AND source = 'uav';
""", conn))
await using (var reader = await cmd.ExecuteReaderAsync())
{
if (!await reader.ReadAsync())
{
throw new Exception("AZ-484 AC-3: no rows after UPSERT — expected exactly one.");
}
rowCount = reader.GetInt64(0);
capturedAt = reader.GetDateTime(1);
filePath = reader.GetString(2);
}
if (rowCount != 1)
{
throw new Exception($"AZ-484 AC-3: expected exactly 1 uav row after UPSERT, got {rowCount}.");
}
if (capturedAt != new DateTime(2026, 5, 1, 0, 0, 0, DateTimeKind.Unspecified))
{
throw new Exception($"AZ-484 AC-3: captured_at not refreshed. Got {capturedAt:o}, expected 2026-05-01.");
}
if (filePath != "second.jpg")
{
throw new Exception($"AZ-484 AC-3: file_path not refreshed. Got '{filePath}', expected 'second.jpg'.");
}
Console.WriteLine(" ✓ Same-source UPSERT collapsed to 1 row with refreshed captured_at and file_path");
}
private static async Task CreateTempTilesTable(NpgsqlConnection conn, string tableName)
{
// Mirrors the post-migration-013 column shape relevant to AZ-484 (omits
// vestigial maps_version/version columns that AC-1..AC-3 do not exercise).
await ExecAsync(conn, $$"""
CREATE TEMP TABLE {{tableName}} (
id UUID PRIMARY KEY,
latitude DOUBLE PRECISION NOT NULL,
longitude DOUBLE PRECISION NOT NULL,
tile_zoom INT NOT NULL,
tile_size_meters DOUBLE PRECISION NOT NULL,
source VARCHAR(32) NOT NULL,
captured_at TIMESTAMP NOT NULL,
file_path VARCHAR(500) NOT NULL,
updated_at TIMESTAMP NOT NULL
);
""");
}
private static async Task<long> ScalarLongAsync(NpgsqlConnection conn, string sql)
{
await using var cmd = new NpgsqlCommand(sql, conn);
var result = await cmd.ExecuteScalarAsync();
return result switch
{
long l => l,
int i => i,
_ => throw new Exception($"Unexpected scalar type {result?.GetType()} for SQL: {sql}"),
};
}
private static async Task ExecAsync(NpgsqlConnection conn, string sql, params (string Name, object Value)[] parameters)
{
await using var cmd = new NpgsqlCommand(sql, conn);
foreach (var (name, value) in parameters)
{
cmd.Parameters.AddWithValue(name, value);
}
await cmd.ExecuteNonQueryAsync();
}
private static async Task<List<Guid>> QueryGuidsAsync(NpgsqlConnection conn, string sql)
{
await using var cmd = new NpgsqlCommand(sql, conn);
await using var reader = await cmd.ExecuteReaderAsync();
var result = new List<Guid>();
while (await reader.ReadAsync())
{
result.Add(reader.GetGuid(0));
}
return result;
}
}