Using Katalon Studio to Automate Fault-Tolerance Testing

Fault-tolerance testing is an important part of any testing strategy, especially for web applications. By simulating different failure scenarios and testing the application’s ability to handle them, we can ensure that the application remains stable and functional in the face of unexpected issues.

In this blog post, we will explore how to use Katalon Studio to automate fault-tolerance testing for web applications.

Setting Up the Environment

Before we can start creating our fault-tolerance tests, we need to set up our environment. To do this, we need to download and install Katalon Studio. Once installed, we can create a new project and a new test case. We can then add our test steps to the test case.

Creating a New Test Case

To create a new test case in Katalon Studio, we can go to File > New > Test Case. We can give the test case a name and select the appropriate folder to save it in. Once created, we can add our test steps to the test case.

Adding Test Steps

To simulate a failure and test the fault-tolerance mechanism, we can add test steps to our test case that simulate different failure scenarios. For example, we can simulate a network failure by disabling the network adapter or disconnecting the Ethernet cable. We can also simulate a server failure by shutting down the server or stopping the web application’s service.

Here’s an example of a test case that simulates a network failure:

import static com.kms.katalon.core.checkpoint.CheckpointFactory.findCheckpoint

import static com.kms.katalon.core.testcase.TestCaseFactory.findTestCase

import static com.kms.katalon.core.testdata.TestDataFactory.findTestData

import static com.kms.katalon.core.testobject.ObjectRepository.findTestObject

import com.kms.katalon.core.checkpoint.Checkpoint as Checkpoint

import com.kms.katalon.core.cucumber.keyword.CucumberBuiltinKeywords as CucumberKW

import com.kms.katalon.core.mobile.keyword.MobileBuiltInKeywords as Mobile

import com.kms.katalon.core.model.FailureHandling as FailureHandling

import com.kms.katalon.core.testcase.TestCase as TestCase

import com.kms.katalon.core.testdata.TestData as TestData

import com.kms.katalon.core.testobject.TestObject as TestObject

import com.kms.katalon.core.webservice.keyword.WSBuiltInKeywords as WS

import com.kms.katalon.core.webui.keyword.WebUiBuiltInKeywords as WebUI

import internal.GlobalVariable as GlobalVariable

WebUI.openBrowser(‘https://example.com’, FailureHandling.OPTIONAL)

WebUI.setText(findTestObject(‘Object Repository/Login Page/Username Field’), ‘testuser’)

WebUI.setText(findTestObject(‘Object Repository/Login Page/Password Field’), ‘password’)

WebUI.click(findTestObject(‘Object Repository/Login Page/Log In Button’))

// Disable the network adapter

Runtime.getRuntime().exec(“netsh interface set interface ‘Ethernet’ admin=disable”)

// Verify that the network error message is displayed

WebUI.waitForElementVisible(findTestObject(‘Object Repository/Error Page/Network Error Message’))

// Re-enable the network adapter

Runtime.getRuntime().exec(“netsh interface set interface ‘Ethernet’ admin=enable”)

// Verify that the login page is displayed again

WebUI.waitForElementVisible(findTestObject(‘Object Repository/Login Page/Username Field’))

Handling Test Failures

One of the key benefits of automated testing is the ability to quickly identify and diagnose test failures. Katalon Studio provides several features for handling test failures.

The first feature is the ability to take screenshots of test failures. This can be useful for debugging and identifying the cause of the failure.

We can use the WebUI.takeScreenshot() method to take a screenshot of the current page when a test fails.

Here’s an example of how to take a screenshot on test failure: