prepare for multiple apps

apps/weblibre/test/drift/tabs/generated/schema.dart

@@ -0,0 +1,36 @@
+// dart format width=80
+// GENERATED BY drift_dev, DO NOT MODIFY.
+// ignore_for_file: type=lint,unused_import
+//
+import 'package:drift/drift.dart';
+import 'package:drift/internal/migrations.dart';
+import 'schema_v2.dart' as v2;
+import 'schema_v3.dart' as v3;
+import 'schema_v4.dart' as v4;
+import 'schema_v5.dart' as v5;
+import 'schema_v6.dart' as v6;
+import 'schema_v7.dart' as v7;
+
+class GeneratedHelper implements SchemaInstantiationHelper {
+  @override
+  GeneratedDatabase databaseForVersion(QueryExecutor db, int version) {
+    switch (version) {
+      case 2:
+        return v2.DatabaseAtV2(db);
+      case 3:
+        return v3.DatabaseAtV3(db);
+      case 4:
+        return v4.DatabaseAtV4(db);
+      case 5:
+        return v5.DatabaseAtV5(db);
+      case 6:
+        return v6.DatabaseAtV6(db);
+      case 7:
+        return v7.DatabaseAtV7(db);
+      default:
+        throw MissingSchemaException(version, versions);
+    }
+  }
+
+  static const versions = const [2, 3, 4, 5, 6, 7];
+}

apps/weblibre/test/drift/tabs/migration_test.dart

@@ -0,0 +1,81 @@
+// dart format width=80
+// ignore_for_file: unused_local_variable, unused_import
+import 'package:drift/drift.dart';
+import 'package:drift_dev/api/migrations_native.dart';
+import 'package:weblibre/features/geckoview/features/tabs/data/database/database.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'generated/schema.dart';
+
+import 'generated/schema_v2.dart' as v2;
+import 'generated/schema_v3.dart' as v3;
+
+void main() {
+  driftRuntimeOptions.dontWarnAboutMultipleDatabases = true;
+  late SchemaVerifier verifier;
+
+  setUpAll(() {
+    verifier = SchemaVerifier(GeneratedHelper());
+  });
+
+  group('simple database migrations', () {
+    // These simple tests verify all possible schema updates with a simple (no
+    // data) migration. This is a quick way to ensure that written database
+    // migrations properly alter the schema.
+    const versions = GeneratedHelper.versions;
+    for (final (i, fromVersion) in versions.indexed) {
+      group('from $fromVersion', () {
+        for (final toVersion in versions.skip(i + 1)) {
+          test('to $toVersion', () async {
+            final schema = await verifier.schemaAt(fromVersion);
+            final db = TabDatabase(schema.newConnection());
+            await verifier.migrateAndValidate(db, toVersion);
+            await db.close();
+          });
+        }
+      });
+    }
+  });
+
+  // The following template shows how to write tests ensuring your migrations
+  // preserve existing data.
+  // Testing this can be useful for migrations that change existing columns
+  // (e.g. by alterating their type or constraints). Migrations that only add
+  // tables or columns typically don't need these advanced tests. For more
+  // information, see https://drift.simonbinder.eu/migrations/tests/#verifying-data-integrity
+  // TODO: This generated template shows how these tests could be written. Adopt
+  // it to your own needs when testing migrations with data integrity.
+  test('migration from v2 to v3 does not corrupt data', () async {
+    // Add data to insert into the old database, and the expected rows after the
+    // migration.
+    // TODO: Fill these lists
+    final oldContainerData = <v2.ContainerData>[];
+    final expectedNewContainerData = <v3.ContainerData>[];
+
+    final oldTabData = <v2.TabData>[];
+    final expectedNewTabData = <v3.TabData>[];
+
+    final oldTabFtsData = <v2.TabFtsData>[];
+    final expectedNewTabFtsData = <v3.TabFtsData>[];
+
+    await verifier.testWithDataIntegrity(
+      oldVersion: 2,
+      newVersion: 3,
+      createOld: v2.DatabaseAtV2.new,
+      createNew: v3.DatabaseAtV3.new,
+      openTestedDatabase: TabDatabase.new,
+      createItems: (batch, oldDb) {
+        batch.insertAll(oldDb.container, oldContainerData);
+        batch.insertAll(oldDb.tab, oldTabData);
+        batch.insertAll(oldDb.tabFts, oldTabFtsData);
+      },
+      validateItems: (newDb) async {
+        expect(
+          expectedNewContainerData,
+          await newDb.select(newDb.container).get(),
+        );
+        expect(expectedNewTabData, await newDb.select(newDb.tab).get());
+        expect(expectedNewTabFtsData, await newDb.select(newDb.tabFts).get());
+      },
+    );
+  });
+}