I have a problem to implement some JUnit test for Gateway Application in Spring Boot Microservices

Here is the Gateway Service Application shown below

@EnableDiscoveryClient
@SpringBootApplication
public class GatewayServiceApplication {

    /**
     * The main method that starts the Spring Boot application.
     *
     * @param args The command-line arguments passed to the application.
     */
    public static void main(String[] args) {
        SpringApplication.run(GatewayServiceApplication.class, args);
    }

}

Next, I try to write its JUnit tests shown below

@SpringBootTest
class GatewayServiceApplicationTest {

    @Autowired
    private ApplicationContext context;

    @DisplayName("Application context loads without errors")
    @Test
    void contextLoads() {
        assertThat(context).isNotNull();
    }

    @DisplayName("Gateway Service starts successfully via main method")
    @Test
    void mainMethodTest() {
        GatewayServiceApplication.main(new String[]{});
    }

    @Test
    @DisplayName("Gateway Service is enabled and running")
    void gatewayServiceIsEnabledAndRunning() {
        assertThat(context.getBean(GatewayServiceApplication.class)).isNotNull();
    }

}

When I run any test, I got this error message shown below

java.lang.StackOverflowError
    at java.util.IdentityHashMap.hash(IdentityHashMap.java:295)
    at java.util.IdentityHashMap.put(IdentityHashMap.java:426)
    at java.util.Collections$SetFromMap.add(Collections.java:5461)

How can I fix it?

As you know, this service is up after eureka server is up

I have a problem to implement some JUnit test for Gateway Application in Spring Boot Microservices.

The aim is to run all JUnit tests in GatewayServiceApplicationTest