Merge pull request #4285 from taosdata/test/TD-1590

Test/td 1590

src/connector/jdbc/src/test/java/com/taosdata/jdbc/BaseTest.java

@@ -5,14 +5,14 @@ import com.taosdata.jdbc.utils.TDNodes;
 import org.junit.AfterClass;
 import org.junit.BeforeClass;
 
-public class BaseTest {
+public abstract class BaseTest {
 
     private static boolean testCluster = false;
     private static TDNodes nodes = new TDNodes();
 
     @BeforeClass
     public static void setupEnv() {
-        try{                         
+        try {
             if (nodes.getTDNode(1).getTaosdPid() != null) {
                 System.out.println("Kill taosd before running JDBC test");
                 nodes.getTDNode(1).setRunning(1);

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/FailOverTest.java

+package com.taosdata.jdbc.cases;
+
+import org.junit.Test;
+
+import java.sql.*;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.concurrent.TimeUnit;
+
+public class FailOverTest {
+
+    private static final SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
+
+    @Test
+    public void testFailOver() throws ClassNotFoundException {
+        Class.forName("com.taosdata.jdbc.TSDBDriver");
+        final String url = "jdbc:TAOS://:/?user=root&password=taosdata";
+
+        long end = System.currentTimeMillis() + 1000 * 60 * 5;
+        while (System.currentTimeMillis() < end) {
+            try (Connection conn = DriverManager.getConnection(url)) {
+                Statement stmt = conn.createStatement();
+                ResultSet resultSet = stmt.executeQuery("select server_status()");
+                resultSet.next();
+                int status = resultSet.getInt("server_status()");
+                System.out.println(">>>>>>>>>" + sdf.format(new Date()) + " status : " + status);
+                stmt.close();
+                TimeUnit.SECONDS.sleep(5);
+            } catch (SQLException | InterruptedException e) {
+                e.printStackTrace();
+            }
+        }
+
+    }
+
+}