refactor: 결제 확정 로직 변화에 따른 테스트 및 API 수정

- 기존의 결제 확정 API 및 테스트 제거(취소는 유지)
- PaymentWriter 제거
- 테스트 코드 반영

service/src/main/kotlin/com/sangdol/roomescape/payment/business/PaymentService.kt

@@ -1,5 +1,6 @@
 package com.sangdol.roomescape.payment.business
 
+import com.sangdol.common.persistence.IDGenerator
 import com.sangdol.common.persistence.TransactionExecutionUtil
 import com.sangdol.roomescape.payment.business.domain.UserFacingPaymentErrorCode
 import com.sangdol.roomescape.payment.dto.*
@@ -8,6 +9,7 @@ import com.sangdol.roomescape.payment.exception.PaymentErrorCode
 import com.sangdol.roomescape.payment.exception.PaymentException
 import com.sangdol.roomescape.payment.infrastructure.client.TosspayClient
 import com.sangdol.roomescape.payment.infrastructure.persistence.*
+import com.sangdol.roomescape.payment.mapper.toEntity
 import com.sangdol.roomescape.payment.mapper.toEvent
 import com.sangdol.roomescape.payment.mapper.toResponse
 import io.github.oshai.kotlinlogging.KLogger
@@ -20,11 +22,11 @@ private val log: KLogger = KotlinLogging.logger {}
 
 @Service
 class PaymentService(
+    private val idGenerator: IDGenerator,
     private val paymentClient: TosspayClient,
     private val paymentRepository: PaymentRepository,
     private val paymentDetailRepository: PaymentDetailRepository,
     private val canceledPaymentRepository: CanceledPaymentRepository,
-    private val paymentWriter: PaymentWriter,
     private val transactionExecutionUtil: TransactionExecutionUtil,
     private val eventPublisher: ApplicationEventPublisher
 ) {
@@ -60,19 +62,6 @@ class PaymentService(
         }
     }
 
-    fun savePayment(
-        reservationId: Long,
-        paymentGatewayResponse: PaymentGatewayResponse
-    ): PaymentCreateResponse {
-        val payment: PaymentEntity = paymentWriter.createPayment(
-            reservationId = reservationId,
-            paymentGatewayResponse = paymentGatewayResponse
-        )
-        val detail: PaymentDetailEntity = paymentWriter.createDetail(paymentGatewayResponse, payment.id)
-
-        return PaymentCreateResponse(paymentId = payment.id, detailId = detail.id)
-    }
-
     fun cancel(userId: Long, request: PaymentCancelRequest) {
         val payment: PaymentEntity = findByReservationIdOrThrow(request.reservationId)
 
@@ -83,12 +72,17 @@ class PaymentService(
         )
 
         transactionExecutionUtil.withNewTransaction(isReadOnly = false) {
-            paymentWriter.cancel(
-                userId = userId,
-                payment = payment,
-                requestedAt = request.requestedAt,
-                cancelResponse = clientCancelResponse
-            )
+            val payment = findByReservationIdOrThrow(request.reservationId).apply { this.cancel() }
+
+            clientCancelResponse.cancels.toEntity(
+                id = idGenerator.create(),
+                paymentId = payment.id,
+                cancelRequestedAt = request.requestedAt,
+                canceledBy = userId
+            ).also {
+                canceledPaymentRepository.save(it)
+                log.debug { "[cancel] 결제 취소 정보 저장 완료: payment.id=${payment.id}" }
+            }
         }.also {
             log.info { "[cancel] 결제 취소 완료: paymentId=${payment.id}" }
         }

service/src/main/kotlin/com/sangdol/roomescape/payment/business/PaymentWriter.kt

@@ -1,80 +0,0 @@
-package com.sangdol.roomescape.payment.business
-
-import com.sangdol.common.persistence.IDGenerator
-import com.sangdol.roomescape.payment.exception.PaymentErrorCode
-import com.sangdol.roomescape.payment.exception.PaymentException
-import com.sangdol.roomescape.payment.business.domain.PaymentMethod
-import com.sangdol.roomescape.payment.dto.PaymentGatewayCancelResponse
-import com.sangdol.roomescape.payment.dto.PaymentGatewayResponse
-import com.sangdol.roomescape.payment.mapper.toCardDetailEntity
-import com.sangdol.roomescape.payment.mapper.toEasypayPrepaidDetailEntity
-import com.sangdol.roomescape.payment.mapper.toEntity
-import com.sangdol.roomescape.payment.mapper.toTransferDetailEntity
-import com.sangdol.roomescape.payment.infrastructure.persistence.*
-import io.github.oshai.kotlinlogging.KLogger
-import io.github.oshai.kotlinlogging.KotlinLogging
-import org.springframework.stereotype.Component
-import java.time.Instant
-
-private val log: KLogger = KotlinLogging.logger {}
-
-@Component
-class PaymentWriter(
-    private val paymentRepository: PaymentRepository,
-    private val paymentDetailRepository: PaymentDetailRepository,
-    private val canceledPaymentRepository: CanceledPaymentRepository,
-    private val idGenerator: IDGenerator,
-) {
-
-    fun createPayment(
-        reservationId: Long,
-        paymentGatewayResponse: PaymentGatewayResponse
-    ): PaymentEntity {
-        log.info { "[PaymentWriterV2.createPayment] 결제 승인 및 결제 정보 저장 시작: reservationId=${reservationId}, paymentKey=${paymentGatewayResponse.paymentKey}" }
-
-        return paymentGatewayResponse.toEntity(id = idGenerator.create(), reservationId = reservationId).also {
-            paymentRepository.save(it)
-            log.info { "[PaymentWriterV2.createPayment] 결제 승인 및 결제 정보 저장 완료: reservationId=${reservationId}, payment.id=${it.id}" }
-        }
-    }
-
-    fun createDetail(
-        paymentGatewayResponse: PaymentGatewayResponse,
-        paymentId: Long,
-    ): PaymentDetailEntity {
-        val method: PaymentMethod = paymentGatewayResponse.method
-        val id = idGenerator.create()
-
-        if (method == PaymentMethod.TRANSFER) {
-            return paymentDetailRepository.save(paymentGatewayResponse.toTransferDetailEntity(id, paymentId))
-        }
-        if (method == PaymentMethod.EASY_PAY && paymentGatewayResponse.card == null) {
-            return paymentDetailRepository.save(paymentGatewayResponse.toEasypayPrepaidDetailEntity(id, paymentId))
-        }
-        if (paymentGatewayResponse.card != null) {
-            return paymentDetailRepository.save(paymentGatewayResponse.toCardDetailEntity(id, paymentId))
-        }
-        throw PaymentException(PaymentErrorCode.NOT_SUPPORTED_PAYMENT_TYPE)
-    }
-
-    fun cancel(
-        userId: Long,
-        payment: PaymentEntity,
-        requestedAt: Instant,
-        cancelResponse: PaymentGatewayCancelResponse
-    ): CanceledPaymentEntity {
-        log.debug { "[PaymentWriterV2.cancelPayment] 결제 취소 정보 저장 시작: payment.id=${payment.id}" }
-
-        paymentRepository.save(payment.apply { this.cancel() })
-
-        return cancelResponse.cancels.toEntity(
-            id = idGenerator.create(),
-            paymentId = payment.id,
-            cancelRequestedAt = requestedAt,
-            canceledBy = userId
-        ).also {
-            canceledPaymentRepository.save(it)
-            log.debug { "[PaymentWriterV2.cancelPayment] 결제 취소 정보 저장 완료: payment.id=${payment.id}" }
-        }
-    }
-}

service/src/main/kotlin/com/sangdol/roomescape/payment/docs/PaymentAPI.kt

@@ -2,11 +2,8 @@ package com.sangdol.roomescape.payment.docs
 
 import com.sangdol.common.types.web.CommonApiResponse
 import com.sangdol.roomescape.auth.web.support.User
-import com.sangdol.roomescape.auth.web.support.UserOnly
 import com.sangdol.roomescape.common.types.CurrentUserContext
-import com.sangdol.roomescape.payment.dto.PaymentGatewayResponse
 import com.sangdol.roomescape.payment.dto.PaymentCancelRequest
-import com.sangdol.roomescape.payment.dto.PaymentConfirmRequest
 import io.swagger.v3.oas.annotations.Operation
 import io.swagger.v3.oas.annotations.responses.ApiResponse
 import io.swagger.v3.oas.annotations.responses.ApiResponses
@@ -16,13 +13,6 @@ import org.springframework.web.bind.annotation.RequestBody
 
 interface PaymentAPI {
 
-    @UserOnly
-    @Operation(summary = "결제 승인")
-    @ApiResponses(ApiResponse(responseCode = "200", useReturnTypeSchema = true))
-    fun confirmPayment(
-        @Valid @RequestBody request: PaymentConfirmRequest
-    ): ResponseEntity<CommonApiResponse<PaymentGatewayResponse>>
-
     @Operation(summary = "결제 취소")
     @ApiResponses(ApiResponse(responseCode = "200", useReturnTypeSchema = true))
     fun cancelPayment(

service/src/main/kotlin/com/sangdol/roomescape/payment/mapper/PaymentClientDTOMappingExtensions.kt

@@ -6,79 +6,9 @@ import com.sangdol.roomescape.payment.dto.CancelDetail
 import com.sangdol.roomescape.payment.dto.PaymentGatewayResponse
 import com.sangdol.roomescape.payment.exception.PaymentErrorCode
 import com.sangdol.roomescape.payment.exception.PaymentException
-import com.sangdol.roomescape.payment.infrastructure.persistence.*
+import com.sangdol.roomescape.payment.infrastructure.persistence.CanceledPaymentEntity
 import java.time.Instant
 
-fun PaymentGatewayResponse.toEntity(
-    id: Long,
-    reservationId: Long,
-) = PaymentEntity(
-    id = id,
-    reservationId = reservationId,
-    paymentKey = this.paymentKey,
-    orderId = this.orderId,
-    totalAmount = this.totalAmount,
-    requestedAt = this.requestedAt.toInstant(),
-    approvedAt = this.approvedAt.toInstant(),
-    type = this.type,
-    method = this.method,
-    status = this.status,
-)
-
-fun PaymentGatewayResponse.toCardDetailEntity(id: Long, paymentId: Long): PaymentCardDetailEntity {
-    val cardDetail = this.card ?: throw PaymentException(PaymentErrorCode.PAYMENT_UNEXPECTED_ERROR)
-
-    return PaymentCardDetailEntity(
-        id = id,
-        paymentId = paymentId,
-        suppliedAmount = this.suppliedAmount,
-        vat = this.vat,
-        issuerCode = cardDetail.issuerCode,
-        cardType = cardDetail.cardType,
-        ownerType = cardDetail.ownerType,
-        amount = cardDetail.amount,
-        cardNumber = cardDetail.number,
-        approvalNumber = cardDetail.approveNo,
-        installmentPlanMonths = cardDetail.installmentPlanMonths,
-        isInterestFree = cardDetail.isInterestFree,
-        easypayProviderCode = this.easyPay?.provider,
-        easypayDiscountAmount = this.easyPay?.discountAmount,
-    )
-}
-
-fun PaymentGatewayResponse.toEasypayPrepaidDetailEntity(
-    id: Long,
-    paymentId: Long
-): PaymentEasypayPrepaidDetailEntity {
-    val easyPayDetail = this.easyPay ?: throw PaymentException(PaymentErrorCode.PAYMENT_UNEXPECTED_ERROR)
-
-    return PaymentEasypayPrepaidDetailEntity(
-        id = id,
-        paymentId = paymentId,
-        suppliedAmount = this.suppliedAmount,
-        vat = this.vat,
-        easypayProviderCode = easyPayDetail.provider,
-        amount = easyPayDetail.amount,
-        discountAmount = easyPayDetail.discountAmount
-    )
-}
-
-fun PaymentGatewayResponse.toTransferDetailEntity(
-    id: Long,
-    paymentId: Long
-): PaymentBankTransferDetailEntity {
-    val transferDetail = this.transfer ?: throw PaymentException(PaymentErrorCode.PAYMENT_UNEXPECTED_ERROR)
-
-    return PaymentBankTransferDetailEntity(
-        id = id,
-        paymentId = paymentId,
-        suppliedAmount = this.suppliedAmount,
-        vat = this.vat,
-        bankCode = transferDetail.bankCode,
-        settlementStatus = transferDetail.settlementStatus
-    )
-}
-
 fun CancelDetail.toEntity(
     id: Long,
     paymentId: Long,
@@ -115,7 +45,7 @@ fun PaymentGatewayResponse.toEvent(reservationId: Long): PaymentEvent {
 }
 
 fun PaymentGatewayResponse.toDetail(): PaymentDetail {
-    return when(this.method) {
+    return when (this.method) {
         PaymentMethod.TRANSFER -> this.toBankTransferDetail()
         PaymentMethod.CARD -> this.toCardDetail()
         PaymentMethod.EASY_PAY -> {

service/src/main/kotlin/com/sangdol/roomescape/payment/web/PaymentController.kt

@@ -6,27 +6,18 @@ import com.sangdol.roomescape.common.types.CurrentUserContext
 import com.sangdol.roomescape.payment.business.PaymentService
 import com.sangdol.roomescape.payment.docs.PaymentAPI
 import com.sangdol.roomescape.payment.dto.PaymentCancelRequest
-import com.sangdol.roomescape.payment.dto.PaymentConfirmRequest
-import com.sangdol.roomescape.payment.dto.PaymentGatewayResponse
 import jakarta.validation.Valid
 import org.springframework.http.ResponseEntity
-import org.springframework.web.bind.annotation.*
+import org.springframework.web.bind.annotation.PostMapping
+import org.springframework.web.bind.annotation.RequestBody
+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.bind.annotation.RestController
 
 @RestController
 @RequestMapping("/payments")
 class PaymentController(
     private val paymentService: PaymentService
 ) : PaymentAPI {
-
-    @PostMapping("/confirm")
-    override fun confirmPayment(
-        @Valid @RequestBody request: PaymentConfirmRequest
-    ): ResponseEntity<CommonApiResponse<PaymentGatewayResponse>> {
-        val response = paymentService.requestConfirm(request)
-
-        return ResponseEntity.ok(CommonApiResponse(response))
-    }
-
     @PostMapping("/cancel")
     override fun cancelPayment(
         @User user: CurrentUserContext,

service/src/test/kotlin/com/sangdol/roomescape/payment/PaymentAPITest.kt

@@ -4,22 +4,21 @@ import com.ninjasquad.springmockk.MockkBean
 import com.sangdol.common.types.web.HttpStatus
 import com.sangdol.roomescape.auth.exception.AuthErrorCode
 import com.sangdol.roomescape.payment.business.PaymentService
-import com.sangdol.roomescape.payment.business.domain.*
-import com.sangdol.roomescape.payment.dto.*
-import com.sangdol.roomescape.payment.exception.ExternalPaymentException
+import com.sangdol.roomescape.payment.business.domain.PaymentMethod
+import com.sangdol.roomescape.payment.business.domain.PaymentStatus
+import com.sangdol.roomescape.payment.dto.PaymentConfirmRequest
 import com.sangdol.roomescape.payment.exception.PaymentErrorCode
 import com.sangdol.roomescape.payment.infrastructure.client.TosspayClient
 import com.sangdol.roomescape.payment.infrastructure.persistence.CanceledPaymentRepository
+import com.sangdol.roomescape.payment.infrastructure.persistence.PaymentDetailRepository
+import com.sangdol.roomescape.payment.infrastructure.persistence.PaymentEntity
 import com.sangdol.roomescape.payment.infrastructure.persistence.PaymentRepository
-import com.sangdol.roomescape.supports.FunSpecSpringbootTest
-import com.sangdol.roomescape.supports.PaymentFixture
-import com.sangdol.roomescape.supports.runExceptionTest
-import com.sangdol.roomescape.supports.runTest
+import com.sangdol.roomescape.payment.mapper.toDetailEntity
+import com.sangdol.roomescape.payment.mapper.toEntity
+import com.sangdol.roomescape.payment.mapper.toEvent
+import com.sangdol.roomescape.supports.*
 import io.kotest.matchers.shouldBe
-import io.mockk.clearMocks
 import io.mockk.every
-import org.hamcrest.CoreMatchers.containsString
-import org.hamcrest.CoreMatchers.equalTo
 import org.springframework.data.repository.findByIdOrNull
 import org.springframework.http.HttpMethod
 
@@ -28,211 +27,10 @@ class PaymentAPITest(
     private val tosspayClient: TosspayClient,
     private val paymentService: PaymentService,
     private val paymentRepository: PaymentRepository,
+    private val paymentDetailRepository: PaymentDetailRepository,
     private val canceledPaymentRepository: CanceledPaymentRepository
 ) : FunSpecSpringbootTest() {
     init {
-        context("결제를 승인한다.") {
-            context("권한이 없으면 접근할 수 없다.") {
-                val endpoint = "/payments/confirm"
-
-                test("비회원") {
-                    runExceptionTest(
-                        method = HttpMethod.POST,
-                        endpoint = endpoint,
-                        expectedErrorCode = AuthErrorCode.TOKEN_NOT_FOUND
-                    )
-                }
-
-                test("관리자") {
-                    runExceptionTest(
-                        token = testAuthUtil.defaultHqAdminLogin().second,
-                        method = HttpMethod.POST,
-                        endpoint = endpoint,
-                        expectedErrorCode = AuthErrorCode.ACCESS_DENIED
-                    )
-                }
-            }
-
-            val amount = 100_000
-            context("간편결제 + 카드로 ${amount}원을 결제한다.") {
-                context("일시불") {
-                    test("토스페이 + 토스뱅크카드(신용)") {
-                        runConfirmTest(
-                            amount = amount,
-                            cardDetail = PaymentFixture.cardDetail(
-                                amount = amount,
-                                issuerCode = CardIssuerCode.TOSS_BANK,
-                                cardType = CardType.CREDIT,
-                            ),
-                            easyPayDetail = PaymentFixture.easypayDetail(
-                                amount = 0,
-                                provider = EasyPayCompanyCode.TOSSPAY
-                            )
-                        )
-                    }
-
-                    test("삼성페이 + 삼성카드(법인)") {
-                        runConfirmTest(
-                            amount = amount,
-                            cardDetail = PaymentFixture.cardDetail(
-                                amount = amount,
-                                issuerCode = CardIssuerCode.SAMSUNG,
-                                cardType = CardType.CREDIT,
-                                ownerType = CardOwnerType.CORPORATE
-                            ),
-                            easyPayDetail = PaymentFixture.easypayDetail(
-                                amount = 0,
-                                provider = EasyPayCompanyCode.SAMSUNGPAY
-                            )
-                        )
-                    }
-                }
-
-                context("할부") {
-                    val installmentPlanMonths = 12
-                    test("네이버페이 + 신한카드 / 12개월") {
-                        runConfirmTest(
-                            amount = amount,
-                            cardDetail = PaymentFixture.cardDetail(
-                                amount = amount,
-                                issuerCode = CardIssuerCode.SHINHAN,
-                                installmentPlanMonths = installmentPlanMonths
-                            ),
-                            easyPayDetail = PaymentFixture.easypayDetail(
-                                amount = 0,
-                                provider = EasyPayCompanyCode.NAVERPAY
-                            )
-                        )
-                    }
-                }
-
-                context("간편결제사 포인트 일부 사용") {
-                    val point = (amount * 0.1).toInt()
-                    test("토스페이 + 국민카드(체크) / 일시불 / $point 포인트 사용") {
-                        runConfirmTest(
-                            amount = amount,
-                            cardDetail = PaymentFixture.cardDetail(
-                                amount = (amount - point),
-                                issuerCode = CardIssuerCode.KOOKMIN,
-                                cardType = CardType.CHECK
-                            ),
-                            easyPayDetail = PaymentFixture.easypayDetail(
-                                amount = 0,
-                                provider = EasyPayCompanyCode.TOSSPAY,
-                                discountAmount = point
-                            )
-                        )
-                    }
-                }
-            }
-
-            context("간편결제사의 선불 충전금액으로 ${amount}원을 결제한다.") {
-                test("토스페이 + 토스페이머니 / 전액") {
-                    runConfirmTest(
-                        easyPayDetail = PaymentFixture.easypayDetail(
-                            amount = amount,
-                            provider = EasyPayCompanyCode.TOSSPAY
-                        )
-                    )
-                }
-
-                val point = (amount * 0.05).toInt()
-
-                test("카카오페이 + 카카오페이머니 / $point 사용") {
-                    runConfirmTest(
-                        easyPayDetail = PaymentFixture.easypayDetail(
-                            amount = (amount - point),
-                            provider = EasyPayCompanyCode.KAKAOPAY,
-                            discountAmount = point
-                        )
-                    )
-                }
-            }
-
-            context("계좌이체로 결제한다.") {
-                test("토스뱅크") {
-                    runConfirmTest(
-                        transferDetail = PaymentFixture.transferDetail(bankCode = BankCode.TOSS_BANK)
-                    )
-                }
-            }
-
-            context("결제 처리중 오류가 발생한다.") {
-                lateinit var token: String
-                val commonRequest = PaymentFixture.confirmRequest
-
-                beforeTest {
-                    token = testAuthUtil.defaultUserLogin().second
-                }
-
-                afterTest {
-                    clearMocks(tosspayClient)
-                }
-
-                test("예외 코드가 UserFacingPaymentErrorCode에 있으면 결제 실패 메시지를 같이 담는다.") {
-                    val statusCode = HttpStatus.BAD_REQUEST.value()
-                    val message = "거래금액 한도를 초과했습니다."
-
-                    every {
-                        tosspayClient.confirm(commonRequest.paymentKey, commonRequest.orderId, commonRequest.amount)
-                    } throws ExternalPaymentException(
-                        httpStatusCode = statusCode,
-                        errorCode = UserFacingPaymentErrorCode.EXCEED_MAX_AMOUNT.name,
-                        message = message
-                    )
-
-                    runTest(
-                        token = token,
-                        using = {
-                            body(commonRequest)
-                        },
-                        on = {
-                            post("/payments/confirm")
-                        },
-                        expect = {
-                            statusCode(statusCode)
-                            body("code", equalTo(PaymentErrorCode.PAYMENT_CLIENT_ERROR.errorCode))
-                            body("message", containsString(message))
-                        }
-                    )
-                }
-
-                context("예외 코드가 UserFacingPaymentErrorCode에 없으면 Client의 상태 코드에 따라 다르게 처리한다.") {
-                    mapOf(
-                        HttpStatus.BAD_REQUEST.value() to PaymentErrorCode.PAYMENT_CLIENT_ERROR,
-                        HttpStatus.INTERNAL_SERVER_ERROR.value() to PaymentErrorCode.PAYMENT_PROVIDER_ERROR
-                    ).forEach { (statusCode, expectedErrorCode) ->
-                        test("statusCode=${statusCode}") {
-                            val message = "잘못된 시크릿키 연동 정보 입니다."
-
-                            every {
-                                tosspayClient.confirm(commonRequest.paymentKey, commonRequest.orderId, commonRequest.amount)
-                            } throws ExternalPaymentException(
-                                httpStatusCode = statusCode,
-                                errorCode = "INVALID_API_KEY",
-                                message = message
-                            )
-
-                            runTest(
-                                token = token,
-                                using = {
-                                    body(commonRequest)
-                                },
-                                on = {
-                                    post("/payments/confirm")
-                                },
-                                expect = {
-                                    statusCode(statusCode)
-                                    body("code", equalTo(expectedErrorCode.errorCode))
-                                    body("message", equalTo(expectedErrorCode.message))
-                                }
-                            )
-                        }
-                    }
-                }
-            }
-        }
-
         context("결제를 취소한다.") {
             context("권한이 없으면 접근할 수 없다.") {
                 val endpoint = "/payments/cancel"
@@ -262,7 +60,7 @@ class PaymentAPITest(
                 val reservation = dummyInitializer.createConfirmReservation(user = user)
                 val confirmRequest = PaymentFixture.confirmRequest
 
-                val paymentCreateResponse = createPayment(
+                val paymentEntity = createPayment(
                     request = confirmRequest,
                     reservationId = reservation.id
                 )
@@ -289,10 +87,10 @@ class PaymentAPITest(
                         statusCode(HttpStatus.OK.value())
                     }
                 ).also {
-                    val payment = paymentRepository.findByIdOrNull(paymentCreateResponse.paymentId)
+                    val payment = paymentRepository.findByIdOrNull(paymentEntity.id)
                         ?: throw AssertionError("Unexpected Exception Occurred.")
                     val canceledPayment =
-                        canceledPaymentRepository.findByPaymentId(paymentCreateResponse.paymentId)
+                        canceledPaymentRepository.findByPaymentId(paymentEntity.id)
                             ?: throw AssertionError("Unexpected Exception Occurred.")
 
                     payment.status shouldBe PaymentStatus.CANCELED
@@ -319,7 +117,7 @@ class PaymentAPITest(
     private fun createPayment(
         request: PaymentConfirmRequest,
         reservationId: Long,
-    ): PaymentCreateResponse {
+    ): PaymentEntity {
         every {
             tosspayClient.confirm(request.paymentKey, request.orderId, request.amount)
         } returns PaymentFixture.confirmResponse(
@@ -331,49 +129,10 @@ class PaymentAPITest(
             transferDetail = null,
         )
 
-        val paymentResponse = paymentService.requestConfirm(request)
-        return paymentService.savePayment(reservationId, paymentResponse)
+        val paymentEvent = paymentService.requestConfirm(reservationId, request).toEvent(reservationId)
+
+        return paymentRepository.save(paymentEvent.toEntity(IDGenerator.create())).also {
+            paymentDetailRepository.save(paymentEvent.toDetailEntity(IDGenerator.create(), it.id))
         }
-
-    fun runConfirmTest(
-        cardDetail: CardDetailResponse? = null,
-        easyPayDetail: EasyPayDetailResponse? = null,
-        transferDetail: TransferDetailResponse? = null,
-        paymentKey: String = "paymentKey",
-        amount: Int = 10000,
-    ) {
-        val token = testAuthUtil.defaultUserLogin().second
-        val request = PaymentFixture.confirmRequest.copy(paymentKey = paymentKey, amount = amount)
-
-        val method = if (easyPayDetail != null) {
-            PaymentMethod.EASY_PAY
-        } else if (cardDetail != null) {
-            PaymentMethod.CARD
-        } else if (transferDetail != null) {
-            PaymentMethod.TRANSFER
-        } else {
-            throw AssertionError("결제타입 확인 필요.")
-        }
-
-        val clientResponse = PaymentFixture.confirmResponse(
-            paymentKey, amount, method, cardDetail, easyPayDetail, transferDetail
-        )
-
-        every {
-            tosspayClient.confirm(request.paymentKey, request.orderId, request.amount)
-        } returns clientResponse
-
-        runTest(
-            token = token,
-            using = {
-                body(request)
-            },
-            on = {
-                post("/payments/confirm")
-            },
-            expect = {
-                statusCode(HttpStatus.OK.value())
-            }
-        )
     }
 }

service/src/test/kotlin/com/sangdol/roomescape/supports/DummyInitializer.kt

@@ -1,11 +1,11 @@
 package com.sangdol.roomescape.supports
 
-import com.sangdol.roomescape.payment.business.PaymentWriter
 import com.sangdol.roomescape.payment.business.domain.PaymentMethod
 import com.sangdol.roomescape.payment.dto.*
-import com.sangdol.roomescape.payment.infrastructure.persistence.CanceledPaymentEntity
-import com.sangdol.roomescape.payment.infrastructure.persistence.PaymentEntity
-import com.sangdol.roomescape.payment.infrastructure.persistence.PaymentRepository
+import com.sangdol.roomescape.payment.infrastructure.persistence.*
+import com.sangdol.roomescape.payment.mapper.toDetailEntity
+import com.sangdol.roomescape.payment.mapper.toEntity
+import com.sangdol.roomescape.payment.mapper.toEvent
 import com.sangdol.roomescape.payment.mapper.toResponse
 import com.sangdol.roomescape.reservation.dto.PendingReservationCreateRequest
 import com.sangdol.roomescape.reservation.infrastructure.persistence.ReservationEntity
@@ -33,7 +33,8 @@ class DummyInitializer(
     private val scheduleRepository: ScheduleRepository,
     private val reservationRepository: ReservationRepository,
     private val paymentRepository: PaymentRepository,
-    private val paymentWriter: PaymentWriter
+    private val paymentDetailRepository: PaymentDetailRepository,
+    private val canceledPaymentRepository: CanceledPaymentRepository
 ) {
 
     fun createStore(
@@ -156,27 +157,6 @@ class DummyInitializer(
         }
     }
 
-    fun createExpiredOrCanceledReservation(
-        user: UserEntity,
-        status: ReservationStatus,
-        storeId: Long = IDGenerator.create(),
-        themeRequest: ThemeCreateRequest = ThemeFixture.createRequest,
-        scheduleRequest: ScheduleCreateRequest = ScheduleFixture.createRequest,
-        reservationRequest: PendingReservationCreateRequest = ReservationFixture.pendingCreateRequest,
-    ): ReservationEntity {
-        return createPendingReservation(user, storeId, themeRequest, scheduleRequest, reservationRequest).apply {
-            this.status = status
-        }.also {
-            reservationRepository.save(it)
-
-            scheduleRepository.findByIdOrNull(it.scheduleId)?.let { schedule ->
-                schedule.status = ScheduleStatus.AVAILABLE
-                schedule.holdExpiredAt = null
-                scheduleRepository.save(schedule)
-            }
-        }
-    }
-
     fun createPayment(
         reservationId: Long,
         request: PaymentConfirmRequest = PaymentFixture.confirmRequest,
@@ -204,12 +184,10 @@ class DummyInitializer(
             transferDetail = transferDetail
         )
 
-        val payment = paymentWriter.createPayment(
-            reservationId = reservationId,
-            paymentGatewayResponse = clientConfirmResponse
-        )
+        val paymentEvent = clientConfirmResponse.toEvent(reservationId)
+        val payment = paymentRepository.save(paymentEvent.toEntity(IDGenerator.create()))
 
-        val detail = paymentWriter.createDetail(clientConfirmResponse, payment.id)
+        val detail = paymentDetailRepository.save(paymentEvent.toDetailEntity(IDGenerator.create(), payment.id))
 
         return payment.toResponse(detail = detail.toResponse(), cancel = null)
     }
@@ -227,11 +205,14 @@ class DummyInitializer(
             cancelReason = cancelReason,
         )
 
-        return paymentWriter.cancel(
-            userId,
-            payment,
-            requestedAt = Instant.now(),
-            clientCancelResponse
-        )
+
+        return clientCancelResponse.cancels.toEntity(
+            id = IDGenerator.create(),
+            paymentId = payment.id,
+            cancelRequestedAt = Instant.now(),
+            canceledBy = userId
+        ).also {
+            canceledPaymentRepository.save(it)
+        }
     }
 }

service/src/test/kotlin/com/sangdol/roomescape/supports/KotestConfig.kt

@@ -1,7 +1,8 @@
 package com.sangdol.roomescape.supports
 
 import com.sangdol.roomescape.admin.infrastructure.persistence.AdminRepository
-import com.sangdol.roomescape.payment.business.PaymentWriter
+import com.sangdol.roomescape.payment.infrastructure.persistence.CanceledPaymentRepository
+import com.sangdol.roomescape.payment.infrastructure.persistence.PaymentDetailRepository
 import com.sangdol.roomescape.payment.infrastructure.persistence.PaymentRepository
 import com.sangdol.roomescape.reservation.infrastructure.persistence.ReservationRepository
 import com.sangdol.roomescape.schedule.infrastructure.persistence.ScheduleRepository
@@ -43,13 +44,7 @@ abstract class FunSpecSpringbootTest(
     }
 }) {
     @Autowired
-    private lateinit var userRepository: UserRepository
-
-    @Autowired
-    private lateinit var adminRepository: AdminRepository
-
-    @Autowired
-    private lateinit var storeRepository: StoreRepository
+    lateinit var testAuthUtil: TestAuthUtil
 
     @Autowired
     lateinit var dummyInitializer: DummyInitializer
@@ -57,32 +52,40 @@ abstract class FunSpecSpringbootTest(
     @LocalServerPort
     var port: Int = 0
 
-    lateinit var testAuthUtil: TestAuthUtil
-
     override suspend fun beforeSpec(spec: Spec) {
         RestAssured.port = port
-        testAuthUtil = TestAuthUtil(userRepository, adminRepository, storeRepository)
     }
 }
 
 @TestConfiguration
 class TestConfig {
+    @Bean
+    fun testAuthUtil(
+        userRepository: UserRepository,
+        adminRepository: AdminRepository,
+        storeRepository: StoreRepository
+    ): TestAuthUtil {
+        return TestAuthUtil(userRepository, adminRepository, storeRepository)
+    }
+
     @Bean
     fun dummyInitializer(
         storeRepository: StoreRepository,
         themeRepository: ThemeRepository,
         scheduleRepository: ScheduleRepository,
         reservationRepository: ReservationRepository,
-        paymentWriter: PaymentWriter,
-        paymentRepository: PaymentRepository
+        paymentRepository: PaymentRepository,
+        paymentDetailRepository: PaymentDetailRepository,
+        canceledPaymentRepository: CanceledPaymentRepository
     ): DummyInitializer {
         return DummyInitializer(
             themeRepository = themeRepository,
             scheduleRepository = scheduleRepository,
             reservationRepository = reservationRepository,
-            paymentWriter = paymentWriter,
             paymentRepository = paymentRepository,
-            storeRepository = storeRepository
+            storeRepository = storeRepository,
+            paymentDetailRepository = paymentDetailRepository,
+            canceledPaymentRepository = canceledPaymentRepository
         )
     }
 }