[ISSUE #525] Support the message track,add the test case to increase code coverage.

client/src/test/java/org/apache/rocketmq/client/trace/DefaultMQProducerWithTraceTest.java

@@ -98,6 +98,9 @@ public class DefaultMQProducerWithTraceTest {
         customTraceTopicproducer.setNamesrvAddr("127.0.0.1:9878");
         message = new Message(topic, new byte[] {'a', 'b' ,'c'});
         asyncArrayDispatcher = (AsyncArrayDispatcher)producer.getTraceDispatcher();
+        asyncArrayDispatcher.setTraceTopicName(customerTraceTopic);
+        asyncArrayDispatcher.getHostProducer();
+        asyncArrayDispatcher.getHostConsumer();
         traceProducer = asyncArrayDispatcher.getTraceProducer();
 
         producer.start();

common/src/test/java/org/apache/rocketmq/common/BrokerConfigTest.java

@@ -27,4 +27,24 @@ public class BrokerConfigTest {
         long expect = 1024L * 1024 * 1024 * 16;
         assertThat(new BrokerConfig().getConsumerFallbehindThreshold()).isEqualTo(expect);
     }
+
+    @Test
+    public void testBrokerConfigAttribute() {
+        BrokerConfig brokerConfig = new BrokerConfig();
+        brokerConfig.setNamesrvAddr("127.0.0.1:9876");
+        brokerConfig.setAutoCreateTopicEnable(false);
+        brokerConfig.setAutoTraceBrokerEnable(true);
+        brokerConfig.setBrokerName("broker-a");
+        brokerConfig.setBrokerId(0);
+        brokerConfig.setBrokerClusterName("DefaultCluster");
+        brokerConfig.setMsgTrackTopicName("RMQ_SYS_TRACK_TRACE_TOPIC4");
+        assertThat(brokerConfig.getBrokerClusterName()).isEqualTo("DefaultCluster");
+        assertThat(brokerConfig.getNamesrvAddr()).isEqualTo("127.0.0.1:9876");
+        assertThat(brokerConfig.getMsgTrackTopicName()).isEqualTo("RMQ_SYS_TRACK_TRACE_TOPIC4");
+        assertThat(brokerConfig.getBrokerId()).isEqualTo(0);
+        assertThat(brokerConfig.getBrokerName()).isEqualTo("broker-a");
+        assertThat(brokerConfig.isAutoCreateTopicEnable()).isEqualTo(false);
+        assertThat(brokerConfig.isAutoTraceBrokerEnable()).isEqualTo(true);
+
+    }
 }
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