[#7] test: repository test setup

backend/user-service/__tests__/models/user.repository.test.ts

@@ -0,0 +1,30 @@
+import { MongoDBContainer, StartedMongoDBContainer } from '@testcontainers/mongodb'
+import logger from '../../src/common/logger.util'
+import connectToDatabase from '../../src/common/mongodb.util'
+import { findOneUserByUsername } from '../../src/models/user.repository'
+
+describe('UserRepository', () => {
+    let startedContainer: StartedMongoDBContainer
+
+    beforeAll(async () => {
+        const container: MongoDBContainer = new MongoDBContainer().withExposedPorts(27017)
+        startedContainer = await container.start()
+
+        const connectionString = `${startedContainer.getConnectionString()}?directConnection=true`
+        logger.info(`[Index Test] MongoDB container started on ${connectionString}`)
+
+        await connectToDatabase(connectionString)
+    }, 60000)
+
+    afterAll(async () => {
+        await startedContainer.stop()
+        logger.info(`[Index Test] MongoDB container stopped`)
+    })
+
+    describe('findOneUserByUsername', () => {
+        it('should return null when no user found', async () => {
+            const user = await findOneUserByUsername('')
+            expect(user).toBeNull()
+        })
+    })
+})