我建议您测试所有编写的内容（或选择编写）…因此在这种情况下，我看到以下元素：
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(nullable = false)
@ManyToOne(optional = false, fetch = FetchType.LAZY)
@JoinColumn(name = "categoryId", nullable = false, updatable = false)
您可以使用此批注定义一些行为（我仅从JPA中选择行为，而JSONView批注应完成相同的操作），并且如果一切正常，就想进行单元测试（如您所定义的）。
@Test(expect = sqlException.class)
public void should_not_allow_null_name() {
/* Given */ Article article = new Article(null, new Category());
/* When */ articleRepository.save(article);
}
通过这种（简单的）测试，您可以遵循行为是否符合您已实现的要求。如果有人（也许是您自己）删除了此注释，您将收到警报。
但是不要测试默认行为（例如，列名，您选择让JPA（和ORM）为您选择…）所以不要测试框架，这是极限。
关于如何进行测试，我喜欢使用（自Spring Boot起）名为DBSetup的项目。它使我可以在测试中对数据集进行硬编码，而不是冗长的XML。这是忍者小队非常有趣的项目。
测试示例：
数据库测试配置：
@Configuration
@EnableJpaRepositories(basePackages = "lan.dk.podcastserver.repository")
@EntityScan(basePackages = "lan.dk.podcastserver.entity")
public class DatabaseConfiguraitonTest {
@Bean
public DataSource dataSource() {
return new EmbeddedDatabaseBuilder()
.setType(EmbeddedDatabaseType.H2)
.build();
}
@Bean
@Autowired
public FullTextEntityManager fullTextEntityManager(EntityManager entityManager) {
return getFullTextEntityManager(entityManager);
}
public static final DateTimeFormatter formatter = new DateTimeFormatterBuilder().append(DateTimeFormatter.ISO_LOCAL_DATE).appendLiteral(" ").append(DateTimeFormatter.ISO_LOCAL_TIME).toFormatter();
public static final Operation DELETE_ALL_podcastS = deleteAllFrom("podcast");
public static final Operation DELETE_ALL_ITEMS = deleteAllFrom("ITEM");
public static final Operation DELETE_ALL_TAGS = sequenceOf(deleteAllFrom("podcast_TAG"), deleteAllFrom("TAG"));
public static final Operation DELETE_ALL = sequenceOf(DELETE_ALL_ITEMS, DELETE_ALL_TAGS, DELETE_ALL_podcastS, DELETE_ALL_TAGS);
}
==>https://gist.github.com/davinkevin/bb4f62aaec031b68b8f3
并测试：
@Transactional
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = {DatabaseConfiguraitonTest.class, HibernateJpaAutoConfiguration.class})
public class ItemRepositoryTest {
@Autowired DataSource dataSource;
@Autowired ItemRepository itemRepository;
private final static DbSetupTracker dbSetupTracker = new DbSetupTracker();
public static final Operation INSERT_REFERENCE_DATA = sequenceOf(
insertInto("podcast")
.columns("ID", "TITLE", "URL", "TYPE", "HAS_TO_BE_DELETED")
.values(1, "AppLoad", null, "RSS", false)
.values(2, "Geek Inc HD", "http://fake.url.com/RSS", "YOUTUBE", true)
.build(),
insertInto("ITEM")
.columns("ID", "TITLE", "URL", "podcast_ID", "STATUS", "PUBDATE", "DOWNLOADDDATE")
.values(1L, "Appload 1", "http://fakeurl.com/appload.1.mp3", 1, Status.FINISH, Now().minusDays(15).format(formatter), Now().minusDays(15).format(formatter))
.values(2L, "Appload 2", "http://fakeurl.com/appload.2.mp3", 1, null, Now().minusDays(30).format(formatter), null)
.values(3L, "Appload 3", "http://fakeurl.com/appload.3.mp3", 1, Status.NOT_DOWNLOADED, Now().format(formatter), null)
.values(4L, "Geek INC 123", "http://fakeurl.com/geekinc.123.mp3", 2, Status.DELETED, Now().minusYears(1).format(formatter), Now().format(formatter))
.values(5L, "Geek INC 124", "http://fakeurl.com/geekinc.124.mp3", 2, Status.FINISH, Now().minusDays(15).format(formatter), Now().minusDays(15).format(formatter))
.build(),
insertInto("TAG")
.columns("ID", "NAME")
.values(1L, "French Spin")
.values(2L, "Studio KNowhere")
.build(),
insertInto("podcast_TAG")
.columns("podcast_ID", "TAG_ID")
.values(1, 1)
.values(2, 2)
.build()
);
@Before
public void prepare() throws Exception {
Operation operation = sequenceOf(DELETE_ALL, INSERT_REFERENCE_DATA);
DbSetup dbSetup = new DbSetup(new DataSourceDestination(dataSource), operation);
dbSetupTracker.launchIfNecessary(dbSetup);
}
@Test
public void should_find_by_podcast_and_page() {
/* Given */
dbSetupTracker.skipNextLaunch();
Integer podcastId = 1;
PageRequest pageRequest = new PageRequest(1, 1, Sort.Direction.ASC, "id");
/* When */
Page<Item> itemBypodcast = itemRepository.findBypodcast(podcastId, pageRequest);
/* Then */
PageAssert
.assertThat(itemBypodcast)
.hasSize(1)
.hasTotalElements(3)
.hasTotalPages(3)
.hasNumberOfElements(1);
ItemAssert
.assertThat(itemBypodcast.getContent().get(0))
.hasTitle("Appload 2");
}
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