add unit test

pom.xml

@@ -28,6 +28,12 @@
       <artifactId>influxdb-java</artifactId>
       <version>2.7</version>
     </dependency>
+    <dependency>
+        <groupId>junit</groupId>
+        <artifactId>junit</artifactId>
+        <version>4.12</version>
+        <scope>test</scope>
+    </dependency>
   </dependencies>
 
   <properties>

src/main/java/com/github/jasper/kafka/KafkaInfluxDBMetricsReporter.java

@@ -50,7 +50,7 @@ public synchronized void startReporter(long pollingPeriodSecs) {
         if (initialized && !running) {
             reporter.start(pollingPeriodSecs, TimeUnit.SECONDS);
             running = true;
-            LOG.info("Started Kafka Graphite metrics reporter with polling period {} seconds", pollingPeriodSecs);
+            LOG.info("Started Kafka InfluxDB metrics reporter with polling period {} seconds", pollingPeriodSecs);
         }
     }
 

src/test/java/com/github/jasper/kafka/KafkaInfluxDBMetricsReporterTest.java

@@ -0,0 +1,38 @@
+package com.github.jasper.kafka;
+
+import kafka.utils.VerifiableProperties;
+
+import java.util.Properties;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+public class KafkaInfluxDBMetricsReporterTest {
+
+    @Test
+    public void initWithoutPropertiesSet() {
+        KafkaInfluxDBMetricsReporter reporter = new KafkaInfluxDBMetricsReporter();
+        reporter.init(new VerifiableProperties());
+    }
+
+    @Test
+    public void initStartStopWithPropertiesSet() {
+        KafkaInfluxDBMetricsReporter reporter = new KafkaInfluxDBMetricsReporter();
+        Properties properties = new Properties();
+        properties.setProperty("kafka.graphite.metrics.reporter.enabled", "true");
+
+        reporter.init(new VerifiableProperties(properties));
+
+        reporter.startReporter(1L);
+        reporter.stopReporter();
+    }
+
+
+    @Test
+    public void getMBeanName() {
+        KafkaInfluxDBMetricsReporter reporter = new KafkaInfluxDBMetricsReporter();
+        assertEquals("kafka:type=com.github.jasper.kafka.KafkaInfluxDBMetricsReporter", reporter.getMBeanName());
+
+    }
+}