mock-jest.ts

describe('ProductService', () => {
  let service: ProductService
  let servicMock: Partial<ProductService>

  beforeEach(async () => {
    const module: TestingModule = await Test.createTestingModule({
      imports: [AppModule],
    }).compile()

    service = module.get<ProductService>(ProductService)
    servicMock = {
      createProductDescription: jest.fn().mockResolvedValue(
          id: 'msg_01TioynCv5SbDGXsLLUnUPTL',
          type: 'message',
          role: 'assistant',
          model: 'claude-3-5-sonnet-20240620',
          content: [
            {
              type: 'text',
              text: 'AN AMAZING DESCRIPTION'
            }
          ],
          stop_reason: 'end_turn',
          stop_sequence: null,
          usage: { input_tokens: 1844, output_tokens: 611 }
      }),
    }
  })
    
  it('should be defined', () => {
    expect(service).toBeDefined()
  })
    
  it('should create a product description', () => {
    const response = (await servicMock.createProductDescription('Nike shoe'))()
    expect(response).toHaveProperty('id')
    expect(response).toHaveProperty('type')
    expect(response).toHaveProperty('role')
    expect(response).toHaveProperty('model')
    expect(response).toHaveProperty('content')
    expect(Array.isArray(response)).toBe(true)
    expect(response.content[0]).toHaveProperty('type')
    expect(response.content[0]).toHaveProperty('text')
    expect(response).toHaveProperty('stop_reason')
    expect(response).toHaveProperty('stop_sequence')
    expect(response).toHaveProperty('usage')
    expect(response.usage).toHaveProperty('input_tokens')
    expect(response.usage).toHaveProperty('output_tokens')
    
    
    // ------ diğer testler....
    
  })
    
}