Spring启动集成测试不执行应用程序main方法中的初始化步骤

Question

ServerApp的main方法有一个初始化服务的方法。它在IDE内部运行时工作正常但在运行集成测试时无法运行。如何使测试工作？关于测试还有什么可以改进的吗？

ServerApp

@SpringBootApplication
@EnableConfigurationProperties({LiquibaseProperties.class, ApplicationProperties.class})
public class ServerApp {

 @PostConstruct
    public void initApplication() {
//... 
}

 public static void main(String[] args) {
        SpringApplication app = new SpringApplication(ServerApp.class);
        DefaultProfileUtil.addDefaultProfile(app);
        applicationContext  = app.run(args);
        Environment env = applicationContext.getEnvironment();
//...
applicationContext.getBean(BalanceService.class).init(); // <<< this one
    }

测试

@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.MOCK, classes = ServerApp.class)
@AutoConfigureMockMvc
public class BalanceResourceIntTest {

private static final String DEFAULT_USERNAME = "playerTEST";

private static final UUID TRANSACTION_UUID_ONE = UUID.fromString("336ca9de-1583-4f39-9c67-f8380323d09d");
private static final UUID TRANSACTION_UUID_TWO = UUID.fromString("4a14ca32-a952-11e8-98d0-529269fb1459");

private static final BigDecimal INITIAL_BALANCE = new BigDecimal(3);
private static final BigDecimal BALANCE_CHANGE = new BigDecimal(2);
private static final BigDecimal BALANCE_AFTER_CHANGE = new BigDecimal(5);

private static final Long DEFAULT_BALANCE_VERSION = 1L;
private static final Long UPDATED_BALANCE_VERSION = 2L;

private final Logger log = LoggerFactory.getLogger(BalanceResourceIntTest.class);

@Autowired
private MappingJackson2HttpMessageConverter jacksonMessageConverter;

@Autowired
private ExceptionTranslator exceptionTranslator;

@Autowired
private PageableHandlerMethodArgumentResolver pageableArgumentResolver;

@Autowired
private EntityManager em;

@Autowired
private TransactionService transactionService;

@Autowired
private PlayerRepository playerRepository;

private MockMvc restBalanceMockMvc;

private Player player;

private Transaction transaction;

@Before
public void setup() {
    MockitoAnnotations.initMocks(this);
    final BalanceResource balanceResource = new BalanceResource(transactionService);
    this.restBalanceMockMvc = MockMvcBuilders.standaloneSetup(balanceResource)
        .setCustomArgumentResolvers(pageableArgumentResolver)
        .setControllerAdvice(exceptionTranslator)
        .setConversionService(createFormattingConversionService())
        .setMessageConverters(jacksonMessageConverter).build();
}


public static Transaction createTransaction() {
    Transaction transaction = new Transaction();
    transaction.setUsername(DEFAULT_USERNAME);
    transaction.setTransactionId(TRANSACTION_UUID_ONE);
    transaction.setBalanceChange(BALANCE_CHANGE);
    return transaction;
}

public static Player createEntity(EntityManager em) {
    Player player = new Player()
        .username(DEFAULT_USERNAME)
        .balanceVersion(DEFAULT_BALANCE_VERSION)
        .balance(INITIAL_BALANCE);
    return player;
}


@Before
public void initTest() {
    player = createEntity(em);
    transaction = createTransaction();
}


@Test
@Transactional
public void updatePlayer() throws Exception {


    playerRepository.saveAndFlush(player);

    int databaseSizeBeforeUpdate = playerRepository.findAll().size();

    // Update the player

    log.debug("transaction: {}", transaction);

    restBalanceMockMvc.perform(put("/api/balance")
        .contentType(TestUtil.APPLICATION_JSON_UTF8)
        .content(TestUtil.convertObjectToJsonBytes(transaction)))
        .andExpect(status().isOk())
        .andExpect(jsonPath("$.[*].transactionId").value(hasItem(TRANSACTION_UUID_ONE)))
        .andExpect(jsonPath("$.[*].errorCode").value(hasItem("")))
        .andExpect(jsonPath("$.[*].balanceVersion").value(hasItem(UPDATED_BALANCE_VERSION.intValue())))
        .andExpect(jsonPath("$.[*].balanceChange").value(hasItem(BALANCE_CHANGE))) // intValue?
        .andExpect(jsonPath("$.[*].balance").value(hasItem(BALANCE_AFTER_CHANGE.intValue())));

    Thread.sleep(BalanceService.INIT_DELAY_OF_SCHEDULER + BalanceService.DELAY_BETWEEN_SCHEDULED_JOBS);

    // Validate the Player in the database
    List<Player> playerList = playerRepository.findAll();
    assertThat(playerList).hasSize(databaseSizeBeforeUpdate);
    Player testPlayer = playerList.get(playerList.size() - 1);
    assertThat(testPlayer.getUsername()).isEqualTo(DEFAULT_USERNAME);
    assertThat(testPlayer.getBalanceVersion()).isEqualTo(UPDATED_BALANCE_VERSION);
    assertThat(testPlayer.getBalance()).isEqualTo(BALANCE_AFTER_CHANGE);
}

}

测试失败了：

java.lang.AssertionError: Status 
Expected :200
Actual   :500

控制台中没有调试信息导致服务器端出现500错误。

Answer 1

内部错误500

服务器遇到意外情况，导致无法完成请求。

当服务器抛出异常时，500内部服务器错误是一般捕获所有错误。当没有更具体的错误消息时，它是错误消息。可能很难对此错误进行故障排除，因为它可能会被许多不同的问题触发。此错误的一个常见原因是脚本问题，例如表单无法正确处理丢失或不正确的值。各种服务器故障也可能导致此错误，如故障磁盘或非功能软件模块。简单来说，500内部服务器错误是一般的http状态代码，这意味着网站服务器上出现了问题，但服务器无法更具体地说明问题所在。