chore: add kysely test example for transaction with raw sql

Author: DominicGBauer

packages/kysely-driver/tests/sqlite/db.test.ts

@@ -1,9 +1,9 @@
 import { afterEach, beforeEach, describe, expect, it } from 'vitest';
 import * as SUT from '../../src/sqlite/db';
-import { Kysely } from 'kysely';
+import { Kysely, sql } from 'kysely';
 import { getPowerSyncDb } from '../setup/db';
 import { AbstractPowerSyncDatabase } from '@powersync/common';
-import { Database } from '../setup/types';
+import { Database, UsersTable } from '../setup/types';
 
 describe('CRUD operations', () => {
   let powerSyncDb: AbstractPowerSyncDatabase;
@@ -50,4 +50,15 @@ describe('CRUD operations', () => {
 
     expect(result.name).toEqual('James Smith');
   });
+
+
+  it('should insert a user and update that user within a transaction when raw sql is used', async () => {
+    await db.transaction().execute(async (transaction) => {
+      await sql`INSERT INTO users (id, name) VALUES ('4', 'James');`.execute(transaction)
+      await transaction.updateTable('users').where('name', '=', 'James').set('name', 'James Smith').execute();
+    });
+    const result = await db.selectFrom('users').select('name').executeTakeFirstOrThrow();
+
+    expect(result.name).toEqual('James Smith');
+  });
 });