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Katalon Studio enables users to create custom keywords. The primary purpose of this is to address individual/ specific needs. Moreover, with the help of custom keywords, you can connect to databases and perform database testing. Subsequently, this tutorial includes a description of the details on how to create custom keywords for database testing in Katalon Studio. In addition to that, we will discuss the below points in this article, which will help us comprehend the procedure of Database Testing using Katalon Studio:

  • How to establish a database connection?
  • How to execute a query?
  • Finally, how to close the connection?
  • Using defined Keywords in Test Cases for DB Testing

Below is a code sample demonstrating how to

  • Firstly, establish a database connection.
  • Secondly, execute a query.
  • Finally, close the connection.
package com.database

import java.sql.DriverManager

import java.sql.ResultSet

import java.sql.Statement

import com.kms.katalon.core.annotation.Keyword

import com.mysql.jdbc.Connection

public class DemoMySql {

   private static Connection connection = null;

   /**

    * Open and return a connection to database

    * @param dataFile absolute file path

    * @return an instance of java.sql.Connection

    */

   //Establishing a connection to the DataBase

   @Keyword

   def connectDB(String url, String dbname, String port, String username, String password){

   //Load driver class for your specific database type

   String conn = "jdbc:mysql://" + url + ":" + port + "/" + dbname

   //Class.forName("org.sqlite.JDBC")

   //String connectionString = "jdbc:sqlite:" + dataFile

   if(connection != null && !connection.isClosed()){

   connection.close()

   }

   connection = DriverManager.getConnection(conn, username, password)

   return connection

   }

   /**

    * execute a SQL query on database

    * @param queryString SQL query string

    * @return a reference to returned data collection, an instance of java.sql.ResultSet

    */

   //Executing the constructed Query and Saving results in resultset

   @Keyword

   def executeQuery(String queryString) {

   Statement stm = connection.createStatement()

   ResultSet rs = stm.executeQuery(queryString)

   return rs

   }

    //Closing the connection

   @Keyword

   def closeDatabaseConnection() {

   if(connection != null && !connection.isClosed()){

   connection.close()

   }

   connection = null

   }

   /**

    * Execute non-query (usually INSERT/UPDATE/DELETE/COUNT/SUM...) on database

    * @param queryString a SQL statement

    * @return single value result of SQL statement

    */

   @Keyword

   def execute(String queryString) {

   Statement stm = connection.createStatement()

   boolean result = stm.execute(queryString)

   return result

   }

}

Tips: Press Ctrl + Shift + o to import missing libraries in test scripts automatically. In other words, this will automatically import the missing libraries.

Consequently, the Custom Keywords file will look like the following:

Katalon Custom Keywords Database Testing using Katalon Studio

Additionally, you can insert/ add the sample code above to your keyword file. Moreover, you can also modify the details as appropriate. In addition to this, you can also refer to the links mentioned below, to understand the formats of database connection strings:

Using Defined Keywords in Test Cases for DB Testing

  1. First, create new custom keywords for the database connection. It is also explained above.
  2. Second, copy the DB script provided above. After that, paste it into the new keyword editor.

Congrats! You have just created your first project on how to use Custom Keywords for database testing. Conclusively, now you have a fair understanding of database testing using Katalon Studio. Additionally, you are also now equipped to establish a database connection, execute a query, and finally close the connection.

Common Condition and Control statements with Katalon Studio
Common Condition and Control statements with Katalon Studio
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