Spring Boot Test example

A way to test if Eureka register your heartbeat

    @Autowired
    private DiscoveryClient discoveryClient;
    
    @Value("${spring.application.name}")
    private String microServiceName;

    @Value("${eureka.instance.leaseRenewalIntervalInSeconds}")
    private int leaseInternval;

    @Test
    public void eurekaHeartbeatTest() throws Exception {

        //Force a heartbeat on Eureka
        TimeUnit.SECONDS.sleep(leaseInternval);

        final List<ServiceInstance> microServiceInstances =
                discoveryClient.getInstances(microServiceName);

        assertTrue(microServiceInstances.size() > 0);
    }