@Test
	public void testFeignClient() {
		assertThat(echoService.echo("test")).isEqualTo("echo fallback");
		assertThat(fooService.echo("test")).isEqualTo("foo fallback");

		assertThatThrownBy(() -> {
			barService.bar();
		}).isInstanceOf(Exception.class);

		assertThatThrownBy(() -> {
			bazService.baz();
		}).isInstanceOf(Exception.class);

		assertThat(fooService.toString()).isNotEqualTo(echoService.toString());
		assertThat(fooService.hashCode()).isNotEqualTo(echoService.hashCode());
		assertThat(echoService.equals(fooService)).isEqualTo(Boolean.FALSE);
	}
@author <a href="mailto:fangjian0423@gmail.com">Jim</a>
spring-cloud-alibaba-starters/spring-cloud-starter-alibaba-sentinel/src/test/java/com/alibaba/cloud/sentinel/SentinelFeignTests.java