@Test
	void noCertCannotWork() {
		try (EurekaClientRunner client = createEurekaClient()) {
			client.disableTls();
			client.start();
			assertThat(client.foundServiceViaEureka()).isFalse();
		}
	}
Already proved this in waitForRegistration(). Keep this Test to express test
purpose explicitly.
spring-cloud-netflix-eureka-client-tls-tests/src/test/java/org/springframework/cloud/netflix/eureka/BaseCertTests.java