ApplicationSanityCheck.java

public class ApplicationSanityCheck{
    @Rule
    public final RetryRule retry = new RetryRule();
    private int port = 8080;
    private RestTemplate template;
    private URL base;

    @Before
    public void setUp() throws Exception {
        this.base = new URL("http://localhost:" + port + "/");
        SimpleClientHttpRequestFactory requestFactory = new SimpleClientHttpRequestFactory();
        template = new RestTemplate(requestFactory);
        
    }
    @Test
    // example of true end to end call which call UAT real endpoint
    // and retry in case of failure 4 times with 20 seconds delay between each try
    @Retry(times = 4, timeout = 20000)
    public void test_is_server_up() {
        assertTrue(template.getForEntity(base + "/health", String.class).getStatusCode().is2xxSuccessful());

    }
    
}