import { Test, TestingModule } from '@nestjs/testing'
import { datatype } from 'faker'

import { MockedModule } from '../../../../test/types'
import { N2BPaymentsProviders, N2BPaymentsService } from '../../../services'

import { PaymentMethod } from './payment-method'

describe('PaymentMethod', () => {
  let subject: PaymentMethod
  let n2BPaymentsService: MockedModule<N2BPaymentsService>

  beforeAll(async () => {
    n2BPaymentsService = {
      generateClientSession: jest.fn(),
    }

    const app: TestingModule = await Test.createTestingModule({
      providers: [
        {
          provide: N2BPaymentsService,
          useValue: n2BPaymentsService,
        },
        PaymentMethod,
      ],
    }).compile()

    subject = app.get<PaymentMethod>(PaymentMethod)
  })

  afterEach(() => {
    jest.clearAllMocks()
  })

  afterAll(() => {
    jest.restoreAllMocks()
  })

  describe('#generateClientSession()', () => {
    let provider: N2BPaymentsProviders.INGENICO
    let sessionToken: string

    beforeAll(() => {
      sessionToken = datatype.uuid()
    })

    beforeEach(() => {
      n2BPaymentsService.generateClientSession.mockResolvedValue(sessionToken)
    })

    it('returns the client session from service', async () => {
      expect(await subject.generateClientSession(provider)).toEqual(sessionToken)
    })
  })
})