회원 정보로 배송 정보를 조회하는 DeliveryRepository를 구현하라

회원 정보로 회원의 배송지 정보를 조회하는 로직을 구현했습니다

server/src/delivery/domain/delivery.repository.test.ts

@@ -0,0 +1,74 @@
+import { RowDataPacket } from 'mysql2/promise'
+import { MYSQL_CONNECTION } from '../../database/constants'
+import { DeliveryRepository } from './delivery.repository'
+import { userMock } from '../../fixture/memberFixture'
+import { dbDeliveriesMock } from '../../fixture/deliveryFixture'
+import { Test, TestingModule } from '@nestjs/testing'
+
+describe('DeliveryRepository class', () => {
+  let deliveryRepository: DeliveryRepository
+
+  const DeliveryRepositoryMock = {
+    execute: jest.fn(),
+  }
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [
+        DeliveryRepository,
+        {
+          provide: MYSQL_CONNECTION,
+          useValue: DeliveryRepositoryMock,
+        },
+      ],
+    }).compile()
+
+    deliveryRepository = module.get<DeliveryRepository>(DeliveryRepository)
+  })
+
+  describe('findByMember method', () => {
+    context('Member 정보가 주어지고 조회 값을 반환하면', () => {
+      beforeEach(() => {
+        DeliveryRepositoryMock.execute.mockResolvedValue([[dbDeliveriesMock] as RowDataPacket[], []])
+      })
+      it('배송지 정보를 리턴해야 한다', async () => {
+        const deliveries = await deliveryRepository.findByMember(userMock())
+
+        const expectedResults = dbDeliveriesMock.map((row) => ({
+          id: row['delivery_id'],
+          deliveryName: row['delivery_name'],
+          deliveryFee: row['delivery_fee'],
+          member: row['member_id'],
+          createTime: row['create_time'],
+          updateTime: row['update_time'],
+          createBy: row['create_by'],
+          modifiedBy: row['modified_by'],
+        }))
+
+        expect(deliveries).toStrictEqual(expectedResults)
+      })
+    })
+
+    context('Member 정보가 주어지고 undefined를 반환하면', () => {
+      beforeEach(() => {
+        DeliveryRepositoryMock.execute.mockResolvedValue([[undefined] as RowDataPacket[], []])
+      })
+      it('빈 배열을 리턴해야 한다', async () => {
+        const deliveries = await deliveryRepository.findByMember(userMock())
+
+        expect(deliveries).toStrictEqual([])
+      })
+    })
+
+    context('Member 정보가 주어지고 null를 반환하면', () => {
+      beforeEach(() => {
+        DeliveryRepositoryMock.execute.mockResolvedValue([[null] as RowDataPacket[], []])
+      })
+      it('빈 배열을 리턴해야 한다', async () => {
+        const deliveries = await deliveryRepository.findByMember(userMock())
+
+        expect(deliveries).toStrictEqual([])
+      })
+    })
+  })
+})

server/src/delivery/domain/delivery.repository.ts

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+import { Connection, RowDataPacket } from 'mysql2/promise'
+import { Inject } from '@nestjs/common'
+import { MYSQL_CONNECTION } from '../../database/constants'
+import { Member } from '../../members/domain/member.entity'
+import { Delivery } from './delivery.entity'
+
+export class DeliveryRepository {
+  constructor(
+    @Inject(MYSQL_CONNECTION)
+    private connection: Connection,
+  ) {}
+
+  async findByMember(member: Member): Promise<Delivery[]> {
+    const [[row]] = await this.connection.execute<RowDataPacket[]>(
+      'SELECT delivery_id, delivery_name, delivery_fee, member_id, create_time, update_time, create_by, modified_by FROM delivery WHERE member_id = ?',
+      [member.memberId],
+    )
+
+    return (row ?? []).map((row) => ({
+      id: row['delivery_id'],
+      deliveryName: row['delivery_name'],
+      deliveryFee: row['delivery_fee'],
+      member: row['member_id'],
+      createTime: row['create_time'],
+      updateTime: row['update_time'],
+      createBy: row['create_by'],
+      modifiedBy: row['modified_by'],
+    }))
+  }
+}