[RIP-10] Add test cases for SubscriptionGroupWrapper (#899)

[RIP-10] Add test case for QueryCorrectionOffsetBody & ResetOffsetBody

common/src/test/java/org/apache/rocketmq/common/protocol/body/SubscriptionGroupWrapperTest.java

+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * 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 org.apache.rocketmq.common.protocol.body;
+
+import org.apache.rocketmq.common.DataVersion;
+import org.apache.rocketmq.common.subscription.SubscriptionGroupConfig;
+import org.apache.rocketmq.remoting.protocol.RemotingSerializable;
+import org.junit.Test;
+import java.util.concurrent.ConcurrentHashMap;
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class SubscriptionGroupWrapperTest {
+
+    @Test
+    public void testFromJson(){
+        SubscriptionGroupWrapper subscriptionGroupWrapper = new SubscriptionGroupWrapper();
+        ConcurrentHashMap<String, SubscriptionGroupConfig> subscriptions = new ConcurrentHashMap<String, SubscriptionGroupConfig>();
+        SubscriptionGroupConfig subscriptionGroupConfig = new SubscriptionGroupConfig();
+        subscriptionGroupConfig.setConsumeBroadcastEnable(true);
+        subscriptionGroupConfig.setBrokerId(1234);
+        subscriptionGroupConfig.setGroupName("Consumer-group-one");
+        subscriptions.put("Consumer-group-one", subscriptionGroupConfig);
+        subscriptionGroupWrapper.setSubscriptionGroupTable(subscriptions);
+        DataVersion dataVersion = new DataVersion();
+        dataVersion.nextVersion();
+        subscriptionGroupWrapper.setDataVersion(dataVersion);
+        String json = RemotingSerializable.toJson(subscriptionGroupWrapper, true);
+        SubscriptionGroupWrapper fromJson = RemotingSerializable.fromJson(json, SubscriptionGroupWrapper.class);
+        assertThat(fromJson.getSubscriptionGroupTable()).containsKey("Consumer-group-one");
+        assertThat(fromJson.getSubscriptionGroupTable().get("Consumer-group-one").getGroupName()).isEqualTo("Consumer-group-one");
+        assertThat(fromJson.getSubscriptionGroupTable().get("Consumer-group-one").getBrokerId()).isEqualTo(1234);
+    }
+
+}