Spring数据MongoDB测试

Question

我写了一个小的学习项目来使用MongoDB。我使用Spring数据获取Mongo存储库。创建RestController并通过Service（另一个类）使用MongoRepository从mongodb检索信息并将其呈现给浏览器是相当容易的。

public interface PersonRepository extends MongoRepository<Person, Integer> {
    List<Person> findByName(String name);
    @Query("{'name':{$regex:?0}}")
    List<Person> findByNameLike(String nameLike);
    //the rest of methods
}

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = {AppConfig.class})
public class TestMongo {

    private static final Logger LOG = LoggerFactory.getLogger(TestMongo.class);

    @Autowired
    private PersonRepository personRepository;

    @Before
    public void setUp() {
        Technology technology1 = new Technology("Java-7");
        Technology technology2 = new Technology("Java-8");
        Technology technology3 = new Technology("Hibernate");
        Technology technology4 = new Technology("MyBatis");
        Technology technology5 = new Technology("Spring Data");

        Project project1 = new Project(1, "POINT", Arrays.asList(technology1, technology3));
        Project project2 = new Project(2, "Forecast", Arrays.asList(technology1, technology4));
        Project project3 = new Project(3, "CPM", Arrays.asList(technology2, technology5));

        Person person1 = new Person(1, "Alex", 27, Arrays.asList(project1, project3));
        Person person2 = new Person(2, "Ivan", 26, Arrays.asList(project2, project3));
        Person person3 = new Person(3, "Andrii", 31, Arrays.asList(project1));

        personRepository.save(Arrays.asList(person1, person2, person3));
    }

    @Test
    public void count() {
        List<Person> all = personRepository.findAll();
        LOG.info("There are " + all.size() + " person(s) in database");
        assertThat(all.size(), equalTo(3));
    }

    @Test
    public void findByName() {
        List<Person> personList = personRepository.findByName("Ivan");
        LOG.info("*******Find by name********");
        LOG.info("personList {}", personList);
        LOG.info("***************************");
        assertThat(personList, hasSize(1));
    }

    //another test methods

    @After
    public void shutDown() {
        personRepository.deleteAll();
    }
}

@Configuration
@EnableMongoRepositories
@ComponentScan
public class AppConfig {

    @Bean
    public MongoClient mongoClient() {
        return new MongoClient("localhost", 27017);
    }

    @Bean
    public MongoTemplate mongoTemplate() {
        return new MongoTemplate(mongoClient(),"my-mongo");
    }
}

现在我的问题是：我实际上不想在我存储数据的同一个数据库上运行一些测试。此外，我有一个重要的方法PersonRepository.deleteAll()，在此之后，所有数据都将消失。我发现嵌入式mongodb是一种解决方案，但一旦将其添加到pom.xml中，我就再也看不到已安装的数据库了。因此，问题是是否可以在同一台机器上同时安装和嵌入mongodb，如果不能，如何在不修改prod数据的情况下测试我的MongoRepository。

Answer 1

看来我找到了我所缺少的东西：

 <dependency>
    <groupId>de.flapdoodle.embed</groupId>
    <artifactId>de.flapdoodle.embed.mongo</artifactId>
    <version>1.50.5</version>
    <scope>test</scope>
 </dependency>

简单地添加scope test就是启动我的嵌入式mongodb仅用于测试，而我仍然使用已安装的mongodb for Prod。