@Test
public void validateCircuitBreakerInitialized() {

    RestClient client =
            RestClientFactoryBuilder.builder()
                    .build()
                    .create(
                            null,
                            null,
                            ClientConfiguration.builder()
                                    .circuitBreakerConfiguration(
                                            CircuitBreakerConfiguration.builder().build())
                                    .build());
    Assert.assertNotNull(client.circuitBreaker);
}