fix router unit test (#684)

CHANGELOG.md

@@ -2,3 +2,4 @@
 ---
 
 - [fix router concurrent bug&fix spring-retry circuit breaker not work bug](https://github.com/Tencent/spring-cloud-tencent/pull/679)
+- [fix router unit test](https://github.com/Tencent/spring-cloud-tencent/pull/684)

spring-cloud-starter-tencent-polaris-router/src/test/java/com/tencent/cloud/polaris/router/feign/PolarisCachingSpringLoadBalanceFactoryTest.java

@@ -20,7 +20,6 @@ package com.tencent.cloud.polaris.router.feign;
 
 import com.netflix.client.config.DefaultClientConfigImpl;
 import com.netflix.loadbalancer.ILoadBalancer;
-import com.tencent.cloud.polaris.router.SimpleLoadBalancer;
 import org.junit.Assert;
 import org.junit.Test;
 import org.junit.runner.RunWith;

spring-cloud-starter-tencent-polaris-router/src/test/java/com/tencent/cloud/polaris/router/feign/PolarisFeignLoadBalancerTest.java

@@ -32,7 +32,6 @@ import com.tencent.cloud.common.metadata.MetadataContextHolder;
 import com.tencent.cloud.common.util.ApplicationContextAwareUtils;
 import com.tencent.cloud.common.util.JacksonUtils;
 import com.tencent.cloud.polaris.router.PolarisRouterContext;
-import com.tencent.cloud.polaris.router.SimpleLoadBalancer;
 import org.junit.Assert;
 import org.junit.Test;
 import org.junit.runner.RunWith;

spring-cloud-starter-tencent-polaris-router/src/test/java/com/tencent/cloud/polaris/router/feign/SimpleLoadBalancer.java

@@ -0,0 +1,72 @@
+/*
+ * Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
+ *
+ * Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
+ *
+ * Licensed under the BSD 3-Clause License (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://opensource.org/licenses/BSD-3-Clause
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed
+ * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations under the License.
+ */
+
+package com.tencent.cloud.polaris.router.feign;
+
+import java.util.Collections;
+import java.util.List;
+
+import com.netflix.loadbalancer.ILoadBalancer;
+import com.netflix.loadbalancer.Server;
+
+/**
+ * Simple load balancer only for getting and setting servers.
+ *
+ * @author lepdou 2022-05-17
+ */
+public class SimpleLoadBalancer implements ILoadBalancer {
+	private List<Server> servers;
+
+	@Override
+	public void addServers(List<Server> newServers) {
+		this.servers = newServers;
+	}
+
+	@Override
+	public Server chooseServer(Object key) {
+		return null;
+	}
+
+	@Override
+	public void markServerDown(Server server) {
+
+	}
+
+	@Override
+	public List<Server> getServerList(boolean availableOnly) {
+		if (servers == null) {
+			return Collections.emptyList();
+		}
+		return Collections.unmodifiableList(servers);
+	}
+
+	@Override
+	public List<Server> getReachableServers() {
+		if (servers == null) {
+			return Collections.emptyList();
+		}
+		return Collections.unmodifiableList(servers);
+	}
+
+	@Override
+	public List<Server> getAllServers() {
+		if (servers == null) {
+			return Collections.emptyList();
+		}
+		return Collections.unmodifiableList(servers);
+	}
+}