如何在内存MariaDB4j嵌入替换默认春天的DataSource在JUnit测试？

Question

我写了使用多个数据仓库JPA测试Service。问题是，一些仓库使用大量的原生查询与MySQL特定功能，如str_to_date()。所以，当我尝试使用H2服务的方法来测试我得到一个错误，指出H2不能识别功能。我曾在MySQL模式下使用H2尝试过，但得到了同样的错误。

here mariaDB4j提议作为一个变通。我已经加入到依赖的Maven

<dependency>
    <groupId>ch.vorburger.mariaDB4j</groupId>
    <artifactId>mariaDB4j</artifactId>
    <version>2.3.0</version>
    <scope>test</scope>
</dependency>

但越来越IllegalStateException : Failed to replace DataSource with an embedded database for tests. If you want an embedded database please put a supported one on the classpath or tune the replace attribute of @AutoConfigureTestDatabase。

我的测试文件看起来是这样的：

@RunWith(SpringRunner.class)
@DataJpaTest
@AutoConfigureTestDatabase(replace = AutoConfigureTestDatabase.Replace.ANY)
public class TestPay {

    @TestConfiguration
    static class PaymentServiceTestContextConfiguration {
        @Bean
        public PaymentService paymentService(){
            return new PaymentService();
        }
    }

    @Autowired
    private PaymentService paymentService;
    @Autowired
    private TarifRepository firstRepository;
    @Autowired
    private BuildingRepository secondRepository;
    @Autowired
    private ApartmentRepository thirdRepository;

    /* Test cases here*/
}

该项目是建立与注释驱动春季启动。

Answer 1

这听起来像你需要显式声明的DataSource做检查。在H 2的情况下，有可能已经通过弹簧测试依赖性声明一个数据源豆，但有可能无法通过ch.vorburger.mariaDB4j提供关断的，现成的一个。

下面是一个嵌入式MariaDB的数据源，我从elsewhere on the internet偷的例子

import ch.vorburger.mariadb4j.DBConfigurationBuilder
import ch.vorburger.mariadb4j.springframework.MariaDB4jSpringService
import org.springframework.beans.factory.annotation.Value
import org.springframework.boot.autoconfigure.jdbc.DataSourceBuilder
import org.springframework.context.annotation.Bean
import org.springframework.context.annotation.Configuration
import org.springframework.context.annotation.Profile

import javax.sql.DataSource

@Configuration
@Profile(['local', 'integrationTest'])
class EmbeddedMariaDbConfig {

    @Bean
    MariaDB4jSpringService mariaDB4jSpringService() {
        new MariaDB4jSpringService()
    }

    @Bean
    DataSource dataSource(MariaDB4jSpringService mariaDB4jSpringService,
                          @Value('${app.mariaDB4j.databaseName}') String databaseName,
                          @Value('${spring.datasource.username}') String datasourceUsername,
                          @Value('${spring.datasource.password}') String datasourcePassword,
                          @Value('${spring.datasource.driver-class-name}') String datasourceDriver) {
        //Create our database with default root user and no password
        mariaDB4jSpringService.getDB().createDB(databaseName)

        DBConfigurationBuilder config = mariaDB4jSpringService.getConfiguration()

        DataSourceBuilder
                .create()
                .username(datasourceUsername)
                .password(datasourcePassword)
                .url(config.getURL(databaseName))
                .driverClassName(datasourceDriver)
                .build();
    }
}

Answer 2

我建立了下面的类，我在每一个集成测试，需要到mariadb数据库访问重用。这也许可以改善（和我很高兴建议），但它的作品至今：

@RunWith(SpringRunner.class)
@SpringBootTest
@TestPropertySource(locations="classpath:application-junit.properties")
@DirtiesContext(classMode = DirtiesContext.ClassMode.AFTER_CLASS) //otherwise mariadb is not cleaned up between tests
public abstract class MyIntegrationTest {

    private static MariaDB4jSpringService DB;

    @BeforeClass
    public static void init() throws ManagedProcessException {
        DB = new MariaDB4jSpringService();
        DB.setDefaultPort(1234);
        DB.start();
        DB.getDB().createDB("yourtables");
        DB.getDB().source("schema.sql"); // init scripts from /src/test/resources/schema.sql
    }

    @AfterClass
    public static void cleanup() {
        if (DB != null) DB.stop();
    }
}

application-JUnit.properties:

spring.datasource.url=jdbc:mariadb://localhost:1234/yourtables
spring.datasource.username=root
spring.datasource.password=