test setup

backend/setupTests.ts

@@ -0,0 +1,11 @@
+import { beforeAll, afterAll } from '@jest/globals';
+import { DatabaseService } from './src/services';
+
+beforeAll(async () => {
+  const mongoURL = process.env.MONGO_URL!;
+  await DatabaseService.initDatabase(mongoURL);
+});
+
+afterAll(async () => {
+  await DatabaseService.closeDatabase();
+});