用于DAO JUnit测试的SpringBootTest

Question

@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest
public class EntityDaoTest {

    @Autowired 
    protected EntityDao entityDao;

    @Before
    public void setup()
    {

    }

    @Test
    public void test() throws InternalServerException
    {
        List<Entity> entities = entityDao.list();
        assert(entities.size()==0);
    }
}

DAO类的相关方面如下

@Repository
public class EntityDao extends GenericDao<Entity>{

    public EntityDao(DataSource dataSource) {/.../}
}

我的src/test/resources/application.properties文件如下所示

# Database
spring.datasource.url=jdbc:mysql://localhost:3306/db
spring.datasource.username=dbuser
spring.datasource.password=dbpass

在Eclipse中作为JUnit测试运行的跟踪

java.lang.IllegalStateException: Failed to load ApplicationContext
...
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'entityController': Unsatisfied dependency expressed through field 'entityDao': Error creating bean with name 'entityDao' defined in file .../target/classes/hitstpa/dao/EntityDao.class]: Unsatisfied dependency expressed through constructor parameter 0: No qualifying bean of type [javax.sql.DataSource] found for dependency [javax.sql.DataSource]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}; 

...
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'entityDao' defined in file [/home/fmason/workspace/hitstpa/target/classes/hitstpa/dao/EntityDao.class]: Unsatisfied dependency expressed through constructor parameter 0: No qualifying bean of type [javax.sql.DataSource] found for dependency [javax.sql.DataSource]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [javax.sql.DataSource] found for dependency [javax.sql.DataSource]: expected at least 1 bean which qualifies as autowire candidate for this dependency. ...`

应用程序结构

-SRC

----application.java

----COM

----Hitstpa

----application.properties

--测试

---爪哇

Answer 1

首先，对于集成测试，您需要一个包含一些固定数据的集成数据库。

• 现在需要创建一个配置类，它将创建集成测试特定的依赖项（我将其命名为dbconfig.java)
• 接下来是向集成测试类添加@contextconfiguration注释，并提供dbconfig.java，以便在测试运行时创建datasource依赖项并将其注入容器

示例代码

    @Configuration
    public class DbConfig {

    @Bean
    public DataSource dataSource() {

        //Create the DataSource with integration-DB properties

        return dataSource;
    }
}

    @RunWith(SpringJUnit4ClassRunner.class)
    @SpringBootTest
    @ContextConfiguration(classes=DbConfig.class)
    public class EntityDaoTest {

    }