What is the proper annotation since @SpringApplicationConfiguration, @WebIntegration, is deprecated in Spring Boot Framework?

What is the proper annotation since @SpringApplicationConfiguration and @WebIntegration are deprecated as of Spring Boot Framework 1.4? I'm trying to play around with unit testing.

Take a look into JavaDocs of deprecated classes:

* @deprecated as of 1.4 in favor of
 * {@link org.springframework.boot.test.context.SpringBootTest} with
 * {@code webEnvironment=RANDOM_PORT} or {@code webEnvironment=DEFINED_PORT}.
 */
...
@Deprecated
public @interface WebIntegrationTest {

* @deprecated as of 1.4 in favor of {@link SpringBootTest} or direct use of
* {@link SpringBootContextLoader}.
*/
...
@Deprecated
public @interface SpringApplicationConfiguration {

Is there also a replacement for TestRestTemplate()?

Yes, here it is:

 * @deprecated as of 1.4 in favor of
 * {@link org.springframework.boot.test.web.client.TestRestTemplate}
 */
@Deprecated
public class TestRestTemplate extends RestTemplate {

A good place to start is now probably: Testing improvements in Spring Boot 1.4.

They describe a basic sample like the following:

@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment=WebEnvironment.RANDOM_PORT)
public class MyTest {
}

as a replacement to, one of many:

@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(MyApp.class)
@WebIntegrationTest
public class MyTest {
}

you can use @EnableAutoConfiguration or @SpringBootApplication.

for testing purpose you can use @SpringBootTest(webEnvironment='your value') or simply @SpringBootTest

please refer :

http://docs.spring.io/spring-boot/docs/current/reference/html/boot-features-testing.html

for testing the REST, you can use @RestClientTest and configure a RestTemplateBuilder.