import { Cat } from './cat.model'
import { CatsService } from './cats.service'
import { Test, TestingModule } from '@nestjs/testing'
import { TypegooseModule } from 'nestjs-typegoose'
import { TestDatabaseModule } from '../database/test-database.module'

const testCat = {
  name: 'Mica'
}

describe('CatsService', () => {
  let module: TestingModule
  let service: CatsService

  beforeAll(async () => {
    module = await Test.createTestingModule({
      imports: [TestDatabaseModule, TypegooseModule.forFeature([Cat])],
      providers: [CatsService]
    }).compile()

    service = module.get<CatsService>(CatsService)
  })

  afterAll(async () => {
    await module.close()
  })

  it('should be defined', () => {
    expect(service).toBeDefined()
  })

  it('should insert a new cat', async () => {
    const newCat = await service.create(testCat)
    expect(newCat.name).toEqual('Mica')
  })

  it('should return all cats', async () => {
    await expect(service.findAll()).resolves.toHaveLength(1)
    await service.create(testCat)
    await expect(service.findAll()).resolves.toHaveLength(2)
  })
})