tane/apps/app_seeds/test/db/migration_test.dart

import 'package:drift_dev/api/migrations_native.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:tane/db/database.dart';

import 'schema/schema.dart';

void main() {
  late SchemaVerifier verifier;

  setUpAll(() {
    verifier = SchemaVerifier(GeneratedHelper());
  });

  test('freshly created database matches the exported schema v3', () async {
    final schema = await verifier.schemaAt(3);
    final db = AppDatabase(schema.newConnection());
    await verifier.migrateAndValidate(db, 3);
    await db.close();
  });

  test(
    'upgrades v1 → v3 (adds Lot.type, then harvestMonth) and matches the '
    'fresh schema',
    () async {
      final connection = await verifier.startAt(1);
      final db = AppDatabase(connection);
      await verifier.migrateAndValidate(db, 3);
      await db.close();
    },
  );

  test(
    'upgrades v2 → v3 (adds Lot.harvestMonth) and matches the fresh schema',
    () async {
      final connection = await verifier.startAt(2);
      final db = AppDatabase(connection);
      await verifier.migrateAndValidate(db, 3);
      await db.close();
    },
  );
}