Question

我想测试一个“服务”级别或“dao”级别的代码。

但我无法解决异常

“没有EntityManager绑定到此线程。尝试包装此调用 JPAApi.withTransaction，或确保设置HTTP上下文这个帖子。“

这是我的junit测试代码。

以及在“createUser”函数中 userService.createUser（）; 的代码是什么

@Inject
Application application;

@Before
public void setup() {
    Module testModule = new AbstractModule() {
        @Override
        public void configure() {
        }
    };

    GuiceApplicationBuilder builder = new GuiceApplicationLoader()
            .builder(new ApplicationLoader.Context(Environment.simple()))
            .overrides(testModule);
    Guice.createInjector(builder.applicationModule()).injectMembers(this);

    Helpers.start(application);
}

@After
public void teardown() {
    Helpers.stop(application);
}

@Test
@Transactional
public void createUser() {
    running(application, () -> {
        UserService userService = application.injector().instanceOf(UserService.class);
        userService.createUser();
    });

}

请帮助我解决异常

thx~

Answer 1

作为一个想法，您可以添加另一个注入的字段：

window.localStorage.setItem('displayName', data.google.displayName);
window.localStorage.setItem('photoUrl', data.google.photoURL);

然后在测试中，您可以拨打@Inject play.db.jpa.JPAApi japApi

Answer 2

对JungGyu Kim来说可能为时已晚，但对于那些谷歌这个问题的其他人来说。

我找到了2.6.x版的解决方案，但也适用于2.5.x。

package models;

import org.junit.Before;
import org.junit.Test;
import play.Application;
import play.db.jpa.JPAApi;
import play.test.Helpers;
import play.test.WithApplication;

import java.util.stream.Stream;

import static org.junit.Assert.assertTrue;

public class MyRepositoryTest extends WithApplication {

    @Override
    public Application provideApplication() {
        return Helpers.fakeApplication(Helpers.inMemoryDatabase());
    }

    JPAApi jpaApi;
    MyRepository myRepository;

    @Before
    public void init() {
        // must get instances like this, as application is created for each test
        jpaApi = app.injector().instanceOf(JPAApi.class);
        userRepository = app.injector().instanceOf(UserRepository.class);

        // no need to setup / clear DB, WithApplication create new DB for each test
    }


    @Test
    public void testGetAllEntries() {
        // insert some data first
        performNativeQuery("INSERT INTO ...");
        // call tested method
        final Stream<Entity> result = myRepository.getAllEntries();
        // perform some assertions
        assertTrue(result.count() == 1);
    }


    private void performNativeQuery(final String query) {
        jpaApi.withTransaction(em -> em.createNativeQuery(query).executeUpdate());
    }
}

如何在play framework 2.5中使用EntityManager测试函数

2 个答案: