@SpringBootApplication(scanBasePackages= "pl.netsprint.bt.rest")
public class Application {

    private Log log = LogFactory.getLog(Application.class);

    public static void main(String[] args){
        Application app = new Application();
        app.start(args);
    }

    public void start(String[] args){

        log.info("Starting SpringBoot application :) ");

        log.debug(Arrays.asList(args).toString().replace(",","").replace("[","").replace("]",""));

        SpringApplicationBuilder builder = new SpringApplicationBuilder(Application.class);
        builder.logStartupInfo(true);
        builder.headless(true);
        builder.registerShutdownHook(true);
        builder.application();
        ConfigurableApplicationContext  ctx = builder.run(args);

        Environment env = ctx.getEnvironment();
        String port = env.getProperty("server.port");

        log.info("Started SpringBoot application running on port: " + port);
    }
}


@SpringBootTest(classes = Application.class, webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
@ActiveProfiles("test")
public class ApplicationTest {

    public Log log = LogFactory.getLog(this.getClass());

    @Autowired
    private Environment env;

    @LocalServerPort
    private int port;

    public void setPort(int port){
        this.port = port;
    }

    public int getPort(){
        return port;
    }

    @Test
    public void testContext(){
        Assert.assertNotNull(getPort());
        Assert.assertNotNull(env);
    }
}

application-test.properties

#DataSource
spring.datasource.type=org.h2.jdbcx.JdbcDataSource
spring.datasource.platform=H2
spring.datasource.driver-class-name=org.h2.Driver
spring.datasource.url=jdbc:h2:mem:myDb;DB_CLOSE_DELAY=-1
spring.datasource.username=sa
spring.datasource.password=

#JPA/Hibernate
spring.jpa.properties.hibernate.show_sql=true
spring.jpa.properties.hibernate.use_sql_comments=true
spring.jpa.properties.hibernate.format_sql=false
spring.jpa.hibernate.ddl-auto=create
spring.jpa.hibernate.naming.physical-strategy=org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.H2Dialect

logging.level.org.hibernate.SQL=DEBUG
logging.level.org.hibernate.type.descriptor.sql.BasicBinder=TRACE


@Repository
public interface ClientJpaRepository extends JpaRepository<Client,Long>{

}

public class ClientJpaRepositoryTest extends ApplicationTest {

    @Autowired
    private ClientJpaRepository repoClient;

    @Test
    public void test() throws Exception {
		Client clientTvn = new Client("Client Tvn");
		repoClient.save(clientTvn);
	}
}