SpringBoot测试错误（无法解析方法'thenReturn（实体））

Question

你好，我写和销售机票的后端服务，我试图为这个api编写测试。当我试图为AirlineCompanyController类编写createAirlineCompany测试时，我得到了这个错误。

Cannot resolve method 'thenReturn(flight.flightticketapp.entities.AirlineCompany)'

我的测试班：

@Test
    public void testCreateAirlineCompany()
    {
        AirlineCompany airlineCompanyNew = new AirlineCompany();
        airlineCompanyNew.setName("RYANAIR");
        when(airlineCompanyService.createAirlineCompany(airlineCompanyNew.getName())).thenReturn(airlineCompanyNew);
        ResponseEntity<AirlineCompany> airlineCompanyResponseEntity = testRestTemplate.postForEntity
                (ROOT_URL+"/airlinecompany/airlineCreate",airlineCompanyNew,AirlineCompany.class);
        AirlineCompany airline = (AirlineCompany) airlineCompanyResponseEntity.getBody();
        assertNotNull(airlineCompanyResponseEntity.getBody());
        assertEquals(airlineCompanyNew.getName(),airline.getName());

    }
}

还有我的航空公司服务舱：

@Service
public class AirlineCompanyManager implements AirlineCompanyService {
@Override
    public Result createAirlineCompany(String name) {
        return airlineCompanyAbstract.createAirlineCompany(name);
    }
}

我的航空公司Imp课程：

@Component
public class AirlineCompanyImp implements AirlineCompanyAbstract {
  @Override
    public Result createAirlineCompany(String name) {
        AirlineCompany airlineCompany = new AirlineCompany();
        airlineCompany.setName(name);
        add(airlineCompany);
        return new SuccessResult(Messages.airlineCompanyCreated);
    }

@Override
    public Result add(AirlineCompany airlineCompany) {

        airlineCompanyRepository.save(airlineCompany);
        return new SuccessResult(Messages.airlineCompanyAdded);
    }

}

我得到的错误是来自then返回（）方法，我不知道如何解决这个问题。谢谢大家。

Answer 1

您使用的模拟返回值不匹配。当指定模拟时，您返回一个AirlineCompany：

 when(airlineCompanyService.createAirlineCompany(airlineCompanyNew.getName())).thenReturn(airlineCompanyNew);

但您的AirlineCompanyService会返回一个结果：

public Result createAirlineCompany(String name)

Mockito搜索返回不存在的AirlineCompany-的方法。您必须从模拟中返回结果，例如。

when(airlineCompanyService.createAirlineCompany(airlineCompanyNew.getName())).thenReturn(new Result());

Answer 2

确保在（）时导入了正确的静态方法

import static org.mockito.Mockito.when;