feature #3 - Add controller

src/3-adapters/controller/exchangeRate/updateExchangeRateController.ts

@@ -0,0 +1,32 @@
+import { IExchangeRateRepository } from '../../../2-business/repositories/iExchangeRateRepository'
+import { IExchangeRateService } from '../../../2-business/services/iExchangeRateService'
+import { UpdateExchangeRateUseCase } from '../../../2-business/useCases/exchangeRate/updateExchangeRateUseCase'
+import { ControllerBase } from '../../controllerBase'
+import { Output } from '../../../2-business/dto/output'
+
+export class UpdateExchangeRateController extends ControllerBase<void, void> {
+  constructor (
+      private readonly exchangeRateRepository: IExchangeRateRepository,
+      private readonly exchangeRateService: IExchangeRateService
+  ) { super() }
+
+  async run (): Promise<Output<void>> {
+    const logPrefix = 'UpdateExchangeRateController'
+    console.log(`${logPrefix} :: start`)
+
+    try {
+      const updateExchangeRateUseCase = new UpdateExchangeRateUseCase(
+        this.exchangeRateRepository,
+        this.exchangeRateService
+      )
+
+      await updateExchangeRateUseCase.execute()
+
+      console.log(`${logPrefix} :: end`)
+
+      return { status: 'success' }
+    } catch (error) {
+      throw error
+    }
+  }
+}

src/3-adapters/controllerBase.ts

@@ -0,0 +1,5 @@
+import { Output } from '../2-business/dto/output'
+
+export abstract class ControllerBase<I, O> {
+  abstract run (input: I): Promise<Output<O>>
+}

test/unit/3-adpters/exchangeRate/updateExchangeRateController.test.ts

@@ -0,0 +1,56 @@
+import { UpdateExchangeRateController } from '../../../../src/3-adapters/controller/exchangeRate/updateExchangeRateController'
+import { IExchangeRateRepository } from '../../../../src/2-business/repositories/iExchangeRateRepository'
+import { IExchangeRateService } from '../../../../src/2-business/services/iExchangeRateService'
+import { ILatestRatesResponse } from '../../../../src/1-domain/models/iExchangeRateResponse'
+
+jest.mock('../../../../src/2-business/useCases/exchangeRate/updateExchangeRateUseCase')
+
+describe('UpdateExchangeRateController', () => {
+  const exchangeRateResponseMock: ILatestRatesResponse = {
+    success: true,
+    timestamp: 1519296206,
+    base: 'BRL',
+    date: '2021-03-17',
+    rates: {
+      AUD: 1.566015,
+      CAD: 1.560132,
+      CHF: 1.154727,
+      CNY: 7.827874,
+      GBP: 0.882047,
+      JPY: 132.360679,
+      USD: 1.23396
+    }
+  }
+
+  let exchangeRateRepository: IExchangeRateRepository
+  let exchangeRateService: IExchangeRateService
+  let UpdateExchangeRateUseCase = jest.fn()
+
+  const setMocks = () => {
+    exchangeRateRepository = {
+      upsert: jest.fn().mockResolvedValue(null)
+    }
+    exchangeRateService = {
+      getLatestRates: jest.fn().mockResolvedValue(exchangeRateResponseMock)
+    }
+    UpdateExchangeRateUseCase.mockClear()
+  }
+
+  beforeEach(() => {
+    setMocks()
+  })
+
+  test('Success::should update the exchange rates successfully', async () => {
+    UpdateExchangeRateUseCase.mockImplementation(() => {
+      return {
+        execute: jest.fn()
+      }
+    })
+    const controller = new UpdateExchangeRateController(
+      exchangeRateRepository,
+      exchangeRateService
+    )
+
+    await expect(controller.run()).resolves.not.toThrow()
+  })
+})