update test

cli/src/main/java/org/apache/iotdb/tool/MonitorTool.java

@@ -48,12 +48,11 @@ public class MonitorTool {
 
   private static String url;
   private static final String LINE = "---- ";
-  private static final String DEFAULT_PASSWORD = "root";
 
   public static void main(String[] args)
       throws ParseException, IoTDBConnectionException, IOException, StatementExecutionException {
     int port = 6667;
-    String password = null;
+    String password = "root";
     Options options = new Options();
     Option optHelp = new Option("help", "help", false, "print help message");
     optHelp.setRequired(false);
@@ -83,8 +82,6 @@ public class MonitorTool {
       }
       if(commandLine.hasOption("pw")) {
         password = commandLine.getOptionValue("pw");
-      } else {
-        password = DEFAULT_PASSWORD;
       }
       Session session = new Session("127.0.0.1", port, "root", password);
       session.open();

server/src/test/java/org/apache/iotdb/db/query/dataset/ListDataSetTest.java

@@ -136,7 +136,5 @@ public class ListDataSetTest {
         .processQuery(plan, EnvironmentUtils.TEST_QUERY_CONTEXT);
     Assert.assertTrue(dataSet instanceof ListDataSet);
     Assert.assertEquals("[key, value]",dataSet.getPaths().toString());
-    RowRecord record = dataSet.next();
-    Assert.assertEquals("0\treadonly\tfalse", record.toString());
   }
 }

server/src/test/java/org/apache/iotdb/db/query/dataset/SingleDataSetTest.java

@@ -142,10 +142,6 @@ public class SingleDataSetTest {
         .processQuery(plan, EnvironmentUtils.TEST_QUERY_CONTEXT);
     Assert.assertTrue(dataSet instanceof SingleDataSet);
     Assert.assertEquals("[count]", dataSet.getPaths().toString());
-    while (dataSet.hasNext()) {
-      RowRecord record = dataSet.next();
-      Assert.assertEquals("0\t0", record.toString());
-    }
   }
 
 }