我正在嘗試使用 JUnit 和 MockK 庫測驗我的服務實作中的方法。
PlanServiceFeatureImplTest.kt
@Test
fun `storeInstallmentPlan`(@MockK user: User) {
val debtId = 123L
val amount = BigDecimal.valueOf(1000)
val interval = Repeat.monthly
val firstPaymentDate = LocalDate.of(
2021, 11, 4
).atStartOfDay(Time.DEFAULT_TIME_ZONE).toOffsetDateTime()
val planDTO = InstallmentPlanDTO(
interval = interval,
firstPaymentDate = firstPaymentDate,
amount = amount,
installments = listOf()
)
val debt = Debt(
userId = 32L,
title = "debt1",
amount = amount,
category = DebtCategory.credit
)
val plan = InstallmentPlan(
id = 122L,
debtId = debtId,
interval = interval,
firstPaymentDate = firstPaymentDate,
amount = amount
)
val installment1 = Installment(
id = 34,
debtId = debtId,
recordId = 13
)
val installment2 = Installment(
id = 35,
debtId = debtId,
recordId = 14
)
val newStartDate = ZonedDateTime.parse("2021-10-05T00:00 02:00[Europe/Berlin]")
val newEndDate = ZonedDateTime.parse("2021-11-04T00:00 01:00[Europe/Berlin]")
val installments = listOf(
WalletRecord(
userId = debt.userId,
type = RecordType.debt_rate,
amount = plan.amount,
title = debt.title,
category = RecordCategory.debt_rate,
repeat = plan.interval,
startDate = newStartDate.toOffsetDateTime(),
endDate = newEndDate.toOffsetDateTime(),
)
)
val records = flowOf(
WalletRecord(
id = 43,
userId = debt.userId,
type = RecordType.debt_rate,
amount = plan.amount,
title = debt.title,
category = RecordCategory.debt_rate,
repeat = plan.interval,
startDate = newStartDate.toOffsetDateTime(),
endDate = newEndDate.toOffsetDateTime(),
)
)
every { user.tz } returns "Europe/Berlin"
coEvery { debtRepository.findById(debtId) } returns debt
coEvery { installmentPlanRepository.findByDebtId(debtId) } returns plan
coEvery {
installmentPlanRepository.save(
planDTO.copy(
amount = amount
).toEntity(
id = plan.id,
debtId = debtId
)
)
} returns InstallmentPlan(plan.id, debtId, interval, firstPaymentDate, amount )
coEvery { installmentRepository.findByDebtId(debtId) } returns flowOf(installment1, installment2)
coEvery {
installmentRepository.deleteAllById(listOf(installment1.id!!, installment2.id!!).asIterable())
} just Runs
coEvery { recordService.deleteAll(listOf(installment1.recordId, installment2.recordId)) } just Runs
coEvery { userService.findById(debt.userId) } returns user
coEvery { recordService.saveAll(installments) } returns records
coEvery {
installmentRepository.saveAll(
records.map {
Installment(
debtId = debtId,
recordId = it.id!!
)
}
).map { it.recordId }
} returns flowOf(43)
runBlocking { planService.storeInstallmentPlan(debtId, planDTO) }
}
PlanServiceFeatureImpl.kt
@Transactional
override suspend fun storeInstallmentPlan(debtId: Long, installmentPlanDTO: InstallmentPlanDTO): Flow<Long> {
val debt = debtRepository.findById(debtId) ?: throw NotFoundException("Could not find debt with id $debtId")
val installmentPlanId = installmentPlanRepository.findByDebtId(debtId)?.id
val minimumAmount =
BigDecimal.ONE.max(debt.amount.multiply(MINIMUM_INSTALLMENT_PERCENTAGE_OF_TOTAL_AMOUNT, MathContext.DECIMAL32))
.setScale(2, RoundingMode.HALF_UP)
.stripTrailingZeros()
val maximumAmount = debt.amount
val clampedAmount = maximumAmount.min(minimumAmount.max(installmentPlanDTO.amount))
val installmentPlan = installmentPlanDTO.copy(
amount = clampedAmount,
).toEntity(
id = installmentPlanId,
debtId = debtId,
)
installmentPlanRepository.save(installmentPlan)
// delete existing records associated with the installment plan
val existingInstallments = installmentRepository.findByDebtId(debtId).toList()
installmentRepository.deleteAllById(existingInstallments.map { it.id!! })
recordService.deleteAll(existingInstallments.map { it.recordId })
// calculate installments / records
/*
This calculation follows this invariant:
debt.amount = countOfFullInstallments * amount lastInstallment
*/
val user = userService.findById(debt.userId)
?: throw NotFoundException("Could not find user that owns debt $debtId")
val zoneId = ZoneId.of(user.tz)
val firstPaymentDate = installmentPlan.firstPaymentDate.atZoneSameInstant(zoneId)
val countOfFullInstallments =
debt.amount.divide(
(if (installmentPlan.amount <= BigDecimal.ONE) BigDecimal.ONE else installmentPlan.amount),
MathContext.DECIMAL32
)
.setScale(0, RoundingMode.DOWN)
.intValueExact()
val lastInstallmentAmount = debt.amount - installmentPlan.amount * countOfFullInstallments.toBigDecimal()
val countOfInstallments = countOfFullInstallments if (lastInstallmentAmount > BigDecimal.ZERO) 1 else 0
val installments = List(countOfInstallments) { i ->
val endDate =
addInterval(firstPaymentDate, installmentPlan.interval, i)
val startDate = addInterval(firstPaymentDate, installmentPlan.interval, i - 1)
.plusDays(1)
val recordAmount = if (i < countOfFullInstallments)
installmentPlan.amount
else lastInstallmentAmount
WalletRecord(
userId = debt.userId,
type = RecordType.debt_rate,
amount = recordAmount,
title = debt.title,
category = RecordCategory.debt_rate,
repeat = installmentPlan.interval,
startDate = startDate.toOffsetDateTime(),
endDate = endDate.toOffsetDateTime(),
)
}
val recordsFlow = recordService.saveAll(installments)
return installmentRepository.saveAll(recordsFlow.map {
Installment(
debtId = debtId,
recordId = it.id!!,
)
}).map { it.recordId }
}
我收到此錯誤：
no answer found for: InstallmentRepository(installmentRepository#4).saveAll(app.backend.plan.PlanServiceFeatureImpl$storeInstallmentPlan$suspendImpl$$inlined$map$1@31e1ec3)
io.mockk.MockKException: no answer found for: InstallmentRepository(installmentRepository#4).saveAll(app.backend.plan.PlanServiceFeatureImpl$storeInstallmentPlan$suspendImpl$$inlined$map$1@31e1ec3)
這是很多代碼，但由于我不知道錯誤來自哪里，所以我提供了完整的代碼。在其他錯誤“找不到答案”的情況下，它為我提供了類似“[...]InstallmentRepository(...).saveAll([parameters here])”的資訊，而不是被測單元的路徑。希望有人能幫我解決這個問題。
uj5u.com熱心網友回復：
您正在嘗試模擬以下呼叫：
installmentRepository.saveAll(recordsFlow.map {
Installment(
debtId = debtId,
recordId = it.id!!,
)
}).map { it.recordId }
但是你真正需要模擬的只是saveAll()，而不是map()后面的，如下所示：
coEvery { installmentRepository.saveAll(
records.map {
Installment(
debtId = debtId,
recordId = it.id!!
)
}
)
} returns flowOf(Installment(debtId, 43))
如果這不起作用，請嘗試以下操作（使用不太嚴格的匹配）：
coEvery { installmentRepository.saveAll(ArgumentMatchers.any()) } returns flowOf(Installment(debtId, 43))
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