Unable to find a @SpringBootConfiguration, you need to use @ContextConfiguration or @SpringBootTest

需要在注解上加上

@SpringBootTest(classes = VisionApplicationTests.class)

或者使用
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = {JPAConfig.class})
or

@RunWith(SpringRunner.class)
@ContextConfiguration(classes = {JPAConfig.class})
or

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(value={"myJPAConfig.xml"})
or

@RunWith(SpringRunner.class)
@ContextConfiguration(value={"myJPAConfig.xml"})