@TestConfiguration
public class BeanConfig {

    @Bean
    public XXX createXXX(){
return new XXX();
}

@SpringBootConfiguration
@EnableAutoConfiguration
@ComponentScan(basePackages = {"cn.xxx"})
public class xxxApplication {
....
}

//@RunWith(SpringJUnit4ClassRunner.class)
@Import({dataSourceConfig.class,BeanConfig.class})
@RunWith(SpringRunner.class)
@SpringBootTest(classes = xxxApplication.class,webEnvironment = SpringBootTest.WebEnvironment.NONE )
@Transactional(transactionManager = "transactionManagerXXX")
@Rollback(value=false)
//@ContextConfiguration( classes = {xxxApplication.class})
//@PropertySource(value={"classpath:db.properties","classpath:xxxx.properties"})
@PropertySources({
        @PropertySource("classpath:db.properties"),
        @PropertySource("classpath:xxxx.properties")
})
//@PropertySource("classpath:db.properties")
public class DbTestBase  {
..}