add subtitle to NotificationTest

Author: KenChoi1992

src/test/java/cn/jpush/api/push/PushClientTest.java

@@ -5,7 +5,6 @@
 
 import cn.jiguang.commom.ClientConfig;
 import cn.jpush.api.JPushClient;
-import cn.jpush.api.examples.PushExample;
 import cn.jpush.api.push.model.Message;
 import cn.jpush.api.push.model.Options;
 import cn.jpush.api.push.model.Platform;

src/test/java/cn/jpush/api/push/remote/NotificationTest.java

@@ -118,7 +118,7 @@ public void sendNotification_ios_alert_jsonStr() throws Exception {
     @Test
     public void sendNotification_ios_alert_jsonObj() throws Exception {
         IosAlert alert = IosAlert.newBuilder()
-                .setTitleAndBody("ios title", "test ios title")
+                .setTitleAndBody("ios title", "test subtitle", "test ios title")
                 .build();
 
         PushPayload payload = PushPayload.newBuilder()