[TD-11519]<test>:add nodejs sample to ci (#9035)

* [TD-11519]<test>:add nodejs sample to ci

* add nodejs install

* ci test 4th

* ci test 5

* fix ident

Jenkinsfile

@@ -476,6 +476,9 @@ pipeline {
               '''
 
               sh '''
+                cd ${WKC}/src/connector/nodejs
+                npm install
+                npm run test
                 cd ${WKC}/tests/examples/nodejs
                 npm install td2.0-connector > /dev/null 2>&1
                 node nodejsChecker.js host=localhost

src/connector/nodejs/test/testNanoseconds.js

@@ -3,7 +3,6 @@ var conn = taos.connect();
 var c1 = conn.cursor();
 let stime = new Date();
 let interval = 1000;
-
 function convertDateToTS(date) {
   let tsArr = date.toISOString().split("T")
   return "\"" + tsArr[0] + " " + tsArr[1].substring(0, tsArr[1].length - 1) + "\"";

src/connector/nodejs/test/testUnsignedType.js

 const taos = require('../tdengine');
 var conn = taos.connect({ host: "127.0.0.1", user: "root", password: "taosdata", config: "/etc/taos", port: 10 });
 var c1 = conn.cursor();
-executeUpdate("create database nodedb;");
+executeUpdate("create database if not exists nodedb;");
 executeUpdate("use nodedb;");
-executeUpdate("create table unsigntest(ts timestamp,ut tinyint unsigned,us smallint unsigned,ui int unsigned,ub bigint unsigned,bi bigint);");
+executeUpdate("create table if not exists unsigntest(ts timestamp,ut tinyint unsigned,us smallint unsigned,ui int unsigned,ub bigint unsigned,bi bigint);");
 executeUpdate("insert into unsigntest values (now, 254,65534,4294967294,18446744073709551614,9223372036854775807);");
 executeUpdate("insert into unsigntest values (now, 0,0,0,0,-9223372036854775807);");
 executeQuery("select * from unsigntest;");
-executeUpdate("drop database nodedb;");
-
+executeUpdate("drop database if exists nodedb;");
 
 function executeUpdate(sql) {
     console.log(sql);