modify as review suggestions:change junit Assert to assertj Assetions...

spring-cloud-starter-tencent-polaris-router/src/test/java/com/tencent/cloud/polaris/router/resttemplate/PolarisLoadBalancerInterceptorTest.java

@@ -37,6 +37,7 @@ import com.tencent.cloud.common.util.JacksonUtils;
 import com.tencent.cloud.common.util.expresstion.SpringWebExpressionLabelUtils;
 import com.tencent.cloud.polaris.router.RouterRuleLabelResolver;
 import com.tencent.cloud.polaris.router.spi.SpringWebRouterLabelResolver;
+import org.assertj.core.api.Assertions;
 import org.junit.Assert;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -149,7 +150,7 @@ public class PolarisLoadBalancerInterceptorTest {
 				catch (UnsupportedEncodingException e) {
 					throw new RuntimeException("unsupported charset exception " + UTF_8);
 				}
-				Assert.assertEquals(mockedResponse.getHeaders().get(PolarisRouterContext.ROUTER_LABELS).get(0), encodedLabelsContent);
+				Assertions.assertThat(mockedResponse.getHeaders().get(PolarisRouterContext.ROUTER_LABELS).get(0)).isEqualTo(encodedLabelsContent);
 			}
 		}
 	}

spring-cloud-tencent-rpc-enhancement/src/main/java/com/tencent/cloud/rpc/enhancement/resttemplate/EnhancedRestTemplateReporter.java

@@ -137,7 +137,7 @@ public class EnhancedRestTemplateReporter extends AbstractPolarisReporterAdapter
 			}
 
 			List<String> labels = response.getHeaders().get(PolarisRouterContext.ROUTER_LABELS);
-			if (CollectionUtils.isNotEmpty(labels) && labels.size() > 0) {
+			if (CollectionUtils.isNotEmpty(labels)) {
 				String label = labels.get(0);
 				try {
 					label = URLDecoder.decode(label, UTF_8);

spring-cloud-tencent-rpc-enhancement/src/test/java/com/tencent/cloud/rpc/enhancement/resttemplate/EnhancedRestTemplateReporterTest.java

@@ -31,6 +31,7 @@ import com.tencent.cloud.common.util.ApplicationContextAwareUtils;
 import com.tencent.cloud.rpc.enhancement.config.RpcEnhancementReporterProperties;
 import com.tencent.polaris.api.core.ConsumerAPI;
 import com.tencent.polaris.api.rpc.ServiceCallResult;
+import org.assertj.core.api.Assertions;
 import org.junit.AfterClass;
 import org.junit.Assert;
 import org.junit.Before;
@@ -133,7 +134,7 @@ public class EnhancedRestTemplateReporterTest {
 
 		verify(consumerAPI, times(2)).updateServiceCallResult((ServiceCallResult) captor.capture());
 		ServiceCallResult value = (ServiceCallResult) captor.getValue();
-		Assert.assertEquals(value.getLabels(), "k1:v1|k2:v2");
+		Assertions.assertThat(value.getLabels()).isEqualTo("k1:v1|k2:v2");
 		verify(delegate).handleError(uri, HttpMethod.GET, response);
 	}